/* ==== base.css ==== */
/* ==========================================================================
   Hüseyin Mert Şahal — ortak tasarım sistemi
   Tüm sayfalar (ana sayfa ve araç sayfaları) bu dosyayı kullanır.
   ========================================================================== */

@view-transition { navigation: auto; }

:root {
  color-scheme: dark;

  /* Renk */
  --bg: #0a0c10;
  --bg-elev: #0e1116;
  --surface: #12161d;
  --surface-2: #171c25;
  --line: #222a36;
  --line-strong: #2f394a;
  --text: #e8ecf2;
  --muted: #9aa6b6;
  --soft: #7d8a9c;
  --accent: #6fc2e0;
  --accent-strong: #93d5ec;
  --accent-ink: #06131a;
  --accent-soft: rgba(111, 194, 224, .10);
  --ok: #4fc79a;
  --warn: #e0b25a;
  --err: #f19a9a;

  /* Tipografi */
  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Ölçü */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --container: 1120px;
  --header-h: 68px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  animation: page-in .45s var(--ease) both;
}

@keyframes page-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -.02em; font-weight: 650; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: rgba(111, 194, 224, .28); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; left: 12px; top: -60px; z-index: 100;
  padding: 10px 14px; border-radius: var(--r-sm); background: var(--accent); color: var(--accent-ink);
  font-weight: 650; font-size: 14px; transition: top .15s;
}
.skip-link:focus { top: 12px; }

/* Ikon */
.i { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* Yerleşim */
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }

/* ------------------------------------------------------------------ Header */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(10, 12, 16, .82);
  -webkit-backdrop-filter: saturate(140%) blur(14px); backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand img { width: 32px; height: 32px; }
.brand-text { display: grid; line-height: 1.15; min-width: 0; }
.brand-text strong { font-size: 15px; font-weight: 650; letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-text small { font-size: 11px; color: var(--soft); letter-spacing: .04em; white-space: nowrap; }

.site-nav { display: flex; align-items: center; gap: 2px; }
.site-nav a {
  position: relative; padding: 8px 12px; border-radius: var(--r-sm);
  font-size: 14px; color: var(--muted); transition: color .18s, background .18s;
}
.site-nav a:hover { color: var(--text); background: var(--surface); }
.site-nav a[aria-current] { color: var(--text); }
.site-nav a[aria-current]::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 1px; background: var(--accent);
}
.site-nav .nav-product { color: var(--accent-strong); border: 1px solid var(--line-strong); margin-inline: 6px; }
.site-nav .nav-product:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-strong); }
.site-nav .nav-product[aria-current]::after { display: none; }
.site-nav .nav-product[aria-current] { border-color: var(--accent); background: var(--accent-soft); }

.nav-toggle {
  display: none; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line-strong);
  border-radius: var(--r-sm); background: transparent; color: var(--text);
}
.nav-toggle:hover { background: var(--surface); }
.nav-toggle .i { width: 20px; height: 20px; }
.nav-toggle .i-close { display: none; }
.nav-toggle[aria-expanded="true"] .i-menu { display: none; }
.nav-toggle[aria-expanded="true"] .i-close { display: block; }

@media (max-width: 900px) {
  .nav-toggle { display: grid; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: var(--header-h); flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px 24px 20px; background: var(--bg-elev); border-bottom: 1px solid var(--line);
    visibility: hidden; opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility 0s .2s;
  }
  .site-nav.is-open { visibility: visible; opacity: 1; transform: none; pointer-events: auto; transition-delay: 0s; }
  .site-nav a { padding: 13px 12px; font-size: 16px; }
  .site-nav a[aria-current]::after { display: none; }
  .site-nav a[aria-current] { background: var(--surface); }
  .site-nav .nav-product { margin: 6px 0; text-align: center; }
}
@media (max-width: 480px) {
  .container { width: calc(100% - 32px); }
  .site-nav { padding-inline: 16px; }
  .brand-text small { display: none; }
  .header-inner { gap: 12px; }
}
@media (max-width: 360px) {
  .brand { gap: 10px; }
  .brand-text strong { font-size: 14px; }
}

/* ------------------------------------------------------------------ Buton */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 44px; padding: 0 20px; border-radius: var(--r-sm); border: 1px solid transparent;
  font-size: 15px; font-weight: 600; line-height: 1; white-space: nowrap;
  transition: background .18s, border-color .18s, color .18s, transform .18s var(--ease);
}
.btn .i { width: 1.1em; height: 1.1em; transition: transform .18s var(--ease); }
.btn:hover .i-arrow { transform: translateX(3px); }
.btn:hover .i-ext { transform: translate(2px, -2px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-strong); background: var(--accent-soft); }
.btn:active { transform: translateY(1px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ------------------------------------------------------------------ Tipografi / bölüm */
.eyebrow { font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.section { padding: 96px 0; border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 14px; margin-bottom: 48px; max-width: 720px; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 40px); }
.section-head p { color: var(--muted); font-size: 17px; }
.section-head p.eyebrow { color: var(--accent); font-size: 12px; }
@media (max-width: 640px) { .section { padding: 64px 0; } .section-head { margin-bottom: 32px; } }

.lead { font-size: clamp(17px, 2vw, 19px); color: var(--muted); line-height: 1.7; }

/* Etiket (chip) */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex; align-items: center; padding: 5px 11px; border: 1px solid var(--line-strong); border-radius: 999px;
  font: 500 13px/1.3 var(--mono); color: var(--muted); background: var(--bg-elev);
}

/* Panel */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); }

/* Durum noktası */
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--soft); display: inline-block; flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.err { background: var(--err); }

/* ------------------------------------------------------------------ Footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 44px; color: var(--soft); font-size: 14px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px 32px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 26px; height: 26px; opacity: .9; }
.footer-brand strong { color: var(--muted); font-weight: 600; }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.footer-links a:hover { color: var(--text); }

/* ------------------------------------------------------------------ Animasyon */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: .08s; }
.js .reveal[data-delay="2"] { transition-delay: .16s; }
.js .reveal[data-delay="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ==== site.css ==== */
/* Sayfa düzeyi stiller: ana sayfa ve araç sayfaları. base.css ile birlikte yüklenir. */

/* ------------------------------------------------------------------ Hero */
.hero { position: relative; overflow: hidden; padding: 104px 0 88px; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .32;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 78% 20%, #000 0, transparent 72%);
  mask-image: radial-gradient(ellipse 70% 80% at 78% 20%, #000 0, transparent 72%);
}
.hero::after {
  content: ""; position: absolute; width: 720px; height: 720px; right: -160px; top: -260px; pointer-events: none;
  background: radial-gradient(circle, rgba(111, 194, 224, .08), transparent 62%);
  animation: drift 32s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate(-90px, 70px); } }

.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 64px; align-items: center; }
.hero-place { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; color: var(--muted); font-size: 14px; }
.hero h1 { font-size: clamp(42px, 6.4vw, 72px); letter-spacing: -.035em; line-height: 1.02; margin-bottom: 22px; }
.hero-roles { display: flex; flex-wrap: wrap; gap: 6px 0; margin-bottom: 26px; font: 500 14px/1.5 var(--mono); color: var(--accent-strong); }
.hero-roles span:not(:last-child)::after { content: "·"; margin: 0 12px; color: var(--soft); }
.hero .lead { max-width: 560px; margin-bottom: 36px; }

.facts { padding: 8px 24px; }
.facts-head { display: flex; align-items: center; gap: 14px; padding: 18px 0 16px; border-bottom: 1px solid var(--line); }
.facts-head img { width: 40px; height: 40px; }
.facts-head strong { display: block; font-size: 15px; letter-spacing: -.01em; }
.facts-head span { font-size: 13px; color: var(--soft); }
.facts dl { margin: 0; }
.facts .row { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.facts .row:last-child { border-bottom: 0; }
.facts dt { color: var(--soft); }
.facts dd { margin: 0; color: var(--text); overflow-wrap: anywhere; }
.facts dd a { color: var(--accent-strong); }
.facts dd a:hover { text-decoration: underline; text-underline-offset: 3px; }

.stack { border-top: 1px solid var(--line); padding: 28px 0; background: var(--bg-elev); }
.stack-inner { display: flex; align-items: center; gap: 20px 28px; flex-wrap: wrap; }
.stack-inner .eyebrow { white-space: nowrap; }

@media (max-width: 900px) {
  .hero { padding: 64px 0 56px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 44px; }
}

/* ------------------------------------------------------------------ Hakkımda */
.about-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; align-items: start; }
.about-grid h2 { font-size: clamp(28px, 3.6vw, 40px); margin-top: 14px; }
.about-body p { color: #c3ccd9; font-size: 17px; line-height: 1.75; }
.about-body p + p { margin-top: 18px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 28px; } }

/* ------------------------------------------------------------------ Deneyim */
.exp-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr); gap: 64px; }
.group-title { font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--soft); margin-bottom: 26px; }

.timeline { position: relative; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong); }
.t-item { position: relative; padding: 0 0 40px 34px; }
.t-item:last-child { padding-bottom: 0; }
.t-item::before {
  content: ""; position: absolute; left: 0; top: 7px; width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--line-strong);
}
.t-item.is-current::before { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.t-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; margin-bottom: 8px; font-size: 13px; color: var(--soft); }
.t-badge { padding: 2px 9px; border: 1px solid var(--line-strong); border-radius: 999px; font: 500 12px/1.5 var(--mono); color: var(--muted); }
.is-current .t-badge { color: var(--accent-strong); border-color: rgba(111, 194, 224, .4); }
.t-item h3 { font-size: 20px; margin-bottom: 12px; }
.t-item ul li { position: relative; padding-left: 18px; color: var(--muted); font-size: 15.5px; line-height: 1.6; }
.t-item ul li + li { margin-top: 6px; }
.t-item ul li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 1px; background: var(--accent); }
.t-item p { color: var(--muted); font-size: 15.5px; }

.edu-item { padding: 22px 0; border-top: 1px solid var(--line); }
.edu-item:first-of-type { border-top: 0; padding-top: 0; }
.edu-item h3 { font-size: 18px; margin-bottom: 6px; }
.edu-item p { color: var(--muted); font-size: 15px; }
.edu-item .t-badge { display: inline-block; margin-top: 10px; }
@media (max-width: 900px) { .exp-layout { grid-template-columns: 1fr; gap: 48px; } }

/* ------------------------------------------------------------------ Yetkinlikler */
.skills-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 20px; }
.skills-grid .skill { grid-column: span 2; }
.skills-grid .skill:nth-child(n+4) { grid-column: span 3; }
@media (max-width: 1000px) {
  .skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skills-grid .skill, .skills-grid .skill:nth-child(n+4) { grid-column: span 1; }
  .skills-grid .skill:last-child { grid-column: span 2; }
}
@media (max-width: 640px) {
  .skills-grid { grid-template-columns: 1fr; }
  .skills-grid .skill, .skills-grid .skill:last-child { grid-column: span 1; }
}
.skill { padding: 26px; display: grid; gap: 18px; align-content: start; transition: border-color .2s; }
.skill:hover { border-color: var(--line-strong); }
.skill-head { display: flex; align-items: center; gap: 14px; }
.skill-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line-strong); color: var(--accent); background: var(--bg-elev); }
.skill h3 { font-size: 17px; }

/* ------------------------------------------------------------------ Projeler */
.project { overflow: hidden; }
.project-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 28px 32px; border-bottom: 1px solid var(--line); }
.project-title { display: flex; align-items: center; gap: 16px; }
.project-title img { width: 44px; height: 44px; }
.project-title h3 { font-size: 26px; }
.project-title small { display: block; margin-top: 4px; color: var(--soft); font-size: 14px; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border: 1px solid rgba(79, 199, 154, .35); border-radius: 999px; background: rgba(79, 199, 154, .08); color: #8fdcbc; font-size: 13px; font-weight: 550; }
.badge .dot { width: 6px; height: 6px; }

.project-body { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); }
.project-main { padding: 32px; display: grid; gap: 24px; align-content: start; }
.project-main p { color: #c3ccd9; font-size: 16.5px; line-height: 1.75; }
.detail-list li { position: relative; padding-left: 20px; color: var(--muted); font-size: 15.5px; }
.detail-list li + li { margin-top: 8px; }
.detail-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 1px; background: var(--accent); }
.project-side { padding: 32px; border-left: 1px solid var(--line); background: var(--bg-elev); display: grid; gap: 22px; align-content: start; }
.spec dt { font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soft); margin-bottom: 8px; }
.spec dd { margin: 0; color: var(--text); font-size: 15px; }
@media (max-width: 900px) {
  .project-body { grid-template-columns: 1fr; }
  .project-side { border-left: 0; border-top: 1px solid var(--line); }
  .project-top, .project-main, .project-side { padding: 24px; }
}

.roadmap { margin-top: 56px; }
.roadmap-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.road { padding: 4px 0 4px 20px; border-left: 1px solid var(--line-strong); }
.road.is-now { border-left-color: var(--accent); }
.road .t-badge { display: inline-block; margin-bottom: 12px; }
.road.is-now .t-badge { color: var(--accent-strong); border-color: rgba(111, 194, 224, .4); }
.road h4 { font-size: 17px; margin-bottom: 6px; letter-spacing: -.01em; }
.road p { color: var(--muted); font-size: 15px; }
@media (max-width: 800px) { .roadmap-list { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ Ürün bandı (ana sayfa) + ürün mock */
.product-band { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 64px; align-items: center; }
.product-band h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 14px 0 18px; }
.product-band .lead { margin-bottom: 28px; }
.feature-mini { display: grid; gap: 12px; margin-bottom: 32px; }
.feature-mini li { display: flex; gap: 12px; align-items: flex-start; color: var(--muted); font-size: 15.5px; }
.feature-mini .i { color: var(--accent); margin-top: 3px; width: 18px; height: 18px; }
@media (max-width: 900px) { .product-band { grid-template-columns: 1fr; gap: 40px; } }

.app-mock { border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--bg-elev); box-shadow: 0 30px 80px rgba(0, 0, 0, .45); }
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--surface); }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); }
.mock-bar span { margin-left: 10px; font: 500 12px/1 var(--mono); color: var(--soft); }
.mock-body { display: grid; grid-template-columns: 168px minmax(0, 1fr); min-height: 340px; }
.mock-side { padding: 16px 12px; border-right: 1px solid var(--line); background: var(--bg); display: grid; gap: 6px; align-content: start; font-size: 12.5px; color: var(--muted); }
.mock-side .mock-new { padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 8px; color: var(--text); margin-bottom: 8px; }
.mock-side .mock-lbl { font: 500 10px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--soft); padding: 10px 10px 4px; }
.mock-side span.mock-item { padding: 6px 10px; border-radius: 6px; }
.mock-side span.mock-item.on { background: var(--surface-2); color: var(--text); }
.mock-main { display: grid; grid-template-rows: 1fr auto; padding: 20px; gap: 20px; }
.mock-hello { align-self: center; text-align: center; }
.mock-hello strong { display: block; font-size: 20px; letter-spacing: -.02em; margin-bottom: 6px; }
.mock-hello span { font-size: 13px; color: var(--soft); }
.mock-composer { border: 1px solid var(--line-strong); border-radius: 12px; padding: 14px 16px; background: var(--surface); font-size: 13.5px; color: var(--soft); display: flex; justify-content: space-between; align-items: center; }
.mock-send { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: var(--text); color: var(--bg); }
.mock-send .i { width: 15px; height: 15px; stroke-width: 2.2; }
@media (max-width: 560px) { .mock-body { grid-template-columns: 1fr; } .mock-side { display: none; } }

/* ------------------------------------------------------------------ Harita */
.map-box { border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--bg-elev); }
#map-frame { position: relative; min-height: 300px; display: grid; place-items: center; text-align: center; padding: 32px; }
#map-frame.is-loaded { padding: 0; display: block; min-height: 0; }
#map-frame iframe { display: block; width: 100%; height: 540px; border: 0; }
.map-cta { display: grid; gap: 16px; justify-items: center; max-width: 480px; }
.map-cta p { color: var(--muted); font-size: 15px; }
.map-src { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; padding: 14px 20px; border-top: 1px solid var(--line); color: var(--soft); font-size: 13px; }
.map-src a { color: var(--accent-strong); }
.map-src a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ------------------------------------------------------------------ Söz */
.quote-grid { display: grid; grid-template-columns: minmax(0, .5fr) minmax(0, 1.5fr); gap: 56px; align-items: center; }
.photo { margin: 0; padding: 10px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); max-width: 320px; }
.photo img { display: block; width: 100%; height: 280px; object-fit: contain; border-radius: 6px; filter: grayscale(1) contrast(1.04); background: var(--surface-2); }
.photo figcaption, .quote-src { font-size: 12px; color: var(--soft); }
.photo figcaption { padding: 10px 4px 2px; }
.photo a, .quote-src a { color: var(--accent-strong); }
.photo a:hover, .quote-src a:hover { text-decoration: underline; }
blockquote { margin: 16px 0 14px; font-size: clamp(26px, 3.6vw, 40px); font-weight: 600; line-height: 1.22; letter-spacing: -.025em; max-width: 620px; }
.q-author { color: var(--muted); }
.signature { display: block; width: min(180px, 60%); height: 56px; object-fit: contain; object-position: left center; margin-top: 16px; opacity: .65; filter: brightness(0) invert(1); }
.quote-src { display: block; margin-top: 14px; }
@media (max-width: 800px) { .quote-grid { grid-template-columns: 1fr; gap: 28px; } }

/* ------------------------------------------------------------------ İletişim */
.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.contact-link { display: flex; align-items: center; gap: 14px; min-width: 0; padding: 18px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); transition: border-color .2s, transform .2s var(--ease), background .2s; }
.contact-link:hover { border-color: var(--accent); background: var(--surface-2); transform: translateY(-2px); }
.contact-icon { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 10px; border: 1px solid var(--line-strong); color: var(--accent); background: var(--bg-elev); }
.contact-meta { display: grid; min-width: 0; line-height: 1.35; }
.contact-meta strong { font-size: 15px; }
.contact-meta small { font-size: 13px; color: var(--soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.contact-link .i-ext { margin-left: auto; color: var(--soft); width: 18px; height: 18px; }
.suggest { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; margin-top: 32px; padding: 28px 32px; }
.suggest h3 { font-size: 20px; margin-bottom: 6px; }
.suggest p { color: var(--muted); font-size: 15px; max-width: 560px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .suggest { padding: 22px; } .suggest .btn { width: 100%; } }

/* ==================================================================
   Araç sayfası başlığı (p-hero) ve ortak bloklar
   ================================================================== */
.p-hero { position: relative; overflow: hidden; padding: 96px 0 80px; }
.p-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .3;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at 50% 0, #000 0, transparent 70%);
  mask-image: radial-gradient(ellipse 60% 80% at 50% 0, #000 0, transparent 70%);
}
.p-hero-inner { position: relative; z-index: 1; display: grid; gap: 28px; justify-items: center; text-align: center; }
.p-badge { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 13px; color: var(--muted); background: var(--bg-elev); }
.p-hero h1 { font-size: clamp(44px, 7vw, 80px); letter-spacing: -.04em; line-height: 1; }
.p-tag { font: 500 15px/1.5 var(--mono); color: var(--accent-strong); }
.p-hero .lead { max-width: 640px; }
.p-hero .btn-row { justify-content: center; }
.p-visual { position: relative; z-index: 1; margin-top: 64px; max-width: 900px; margin-inline: auto; }
@media (max-width: 700px) { .p-hero { padding: 64px 0 56px; } .p-visual { margin-top: 44px; } }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.feature { padding: 26px; display: grid; gap: 14px; align-content: start; }
.feature h3 { font-size: 18px; }
.feature p { color: var(--muted); font-size: 15px; }
.feature .skill-icon { width: 42px; height: 42px; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; counter-reset: step; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.step { padding: 30px; border-right: 1px solid var(--line); counter-increment: step; }
.step:last-child { border-right: 0; }
.step::before { content: "0" counter(step); display: block; margin-bottom: 18px; font: 500 13px/1 var(--mono); color: var(--accent); letter-spacing: .1em; }
.step h3 { font-size: 19px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } .step { border-right: 0; border-bottom: 1px solid var(--line); } .step:last-child { border-bottom: 0; } }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: start; }
.topic-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.topic { display: flex; align-items: center; gap: 12px; padding: 13px 14px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); font-size: 15px; color: var(--muted); }
.topic .i { color: var(--accent); width: 18px; height: 18px; }
.structure { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.structure li { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 18px 22px; border-bottom: 1px solid var(--line); font-size: 15px; }
.structure li:last-child { border-bottom: 0; }
.structure strong { font: 500 14px/1.5 var(--mono); color: var(--accent-strong); }
.structure span { color: var(--muted); }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 40px; } }
@media (max-width: 480px) { .topic-list { grid-template-columns: 1fr; } .structure li { grid-template-columns: 1fr; gap: 4px; } }

.safety { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.safety .panel { padding: 24px; display: grid; gap: 10px; }
.safety h3 { font-size: 17px; display: flex; align-items: center; gap: 10px; }
.safety h3 .i { color: var(--accent); width: 20px; height: 20px; }
.safety p { color: var(--muted); font-size: 15px; }
.notice { display: flex; gap: 14px; align-items: flex-start; margin-top: 24px; padding: 18px 20px; border: 1px solid rgba(224, 178, 90, .35); border-radius: var(--r-md); background: rgba(224, 178, 90, .06); color: #e9cd97; font-size: 15px; }
.notice .i { margin-top: 2px; flex: none; color: var(--warn); }

.byline { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 40px; padding: 32px; }
.byline-who { display: flex; align-items: center; gap: 16px; }
.byline-who img { width: 48px; height: 48px; }
.byline-who strong { display: block; font-size: 17px; }
.byline-who span { color: var(--soft); font-size: 14px; }
@media (max-width: 560px) { .byline { padding: 22px; } .byline .btn-row, .byline .btn { width: 100%; } }

/* ==== toolbox.css ==== */
/* Toolbox: kenar paneli ve ana sayfa bölümü. Yalnızca mevcut base.css belirteçlerini kullanır. */

/* Panel <html> altına eklendiğinden yazı tipi burada açıkça verilir. */
.tb-tab, .tb-root { font-family: var(--font); font-size: 16px; line-height: 1.65; color: var(--text); }

/* --- Kenar sekmesi --- */
.tb-tab {
  position: fixed; right: 0; top: 50%; z-index: 40;
  transform: translateY(-50%);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 10px; min-height: 44px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line-strong); border-right: 0;
  border-radius: var(--r-md) 0 0 var(--r-md);
  font: 500 13px/1 var(--mono); letter-spacing: .04em;
  cursor: pointer; writing-mode: vertical-rl; text-orientation: mixed;
  transition: background .18s var(--ease), border-color .18s var(--ease), padding .18s var(--ease);
}
.tb-tab .i { width: 18px; height: 18px; color: var(--accent); writing-mode: horizontal-tb; }
.tb-tab:hover { background: var(--accent-soft); border-color: var(--accent); padding-right: 14px; }
.tb-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tb-open .tb-tab { opacity: 0; pointer-events: none; }

/* --- Panel --- */
.tb-root {
  position: fixed; inset: 0; z-index: 60; overflow: hidden;
  visibility: hidden; pointer-events: none;
  transition: visibility 0s linear .25s;
}
.tb-open .tb-root { visibility: visible; pointer-events: auto; transition-delay: 0s; }
.tb-overlay {
  position: absolute; inset: 0; background: rgba(4, 6, 9, .6);
  opacity: 0; transition: opacity .2s var(--ease);
}
.tb-drawer {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(400px, calc(100% - 44px)); display: flex; flex-direction: column;
  background: var(--bg-elev); border-left: 1px solid var(--line-strong);
  transform: translateX(100%);
  transition: transform .25s var(--ease);
}
.tb-open .tb-overlay { opacity: 1; }
.tb-open .tb-drawer { transform: none; }

.tb-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.tb-head h2 { font-size: 18px; letter-spacing: -.01em; }
.tb-head p { color: var(--muted); font-size: 13.5px; margin-top: 2px; }
.tb-close {
  display: grid; place-items: center; width: 40px; height: 40px; flex: none;
  background: transparent; color: var(--muted); border: 1px solid var(--line-strong); border-radius: var(--r-sm); cursor: pointer;
}
.tb-close:hover { color: var(--text); border-color: var(--accent); }
.tb-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tb-close .i { width: 18px; height: 18px; }

.tb-body { flex: 1; overflow-y: auto; padding: 18px 20px 24px; display: grid; gap: 12px; align-content: start; }
.tb-foot { padding: 14px 20px; border-top: 1px solid var(--line); color: var(--soft); font-size: 13px; }
.tb-foot a { color: var(--accent-strong); }

/* --- Araç kartı (panel ve ana sayfa ortak) --- */
.tool-card {
  display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; align-items: start;
  padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.tool-card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.tool-card .skill-icon { grid-row: span 3; }
.tool-card h3, .tool-card h4 { font-size: 17px; letter-spacing: -.01em; }
.tool-card p { color: var(--muted); font-size: 14.5px; }
.tool-card .t-badge { justify-self: start; margin-top: 6px; }
.tool-card.is-dev .t-badge { color: var(--warn); border-color: rgba(224, 178, 90, .45); }
a.tool-card { color: inherit; text-decoration: none; }
a.tool-card:hover { border-color: var(--accent); }
a.tool-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tool-card.is-on .t-badge { color: var(--ok); border-color: rgba(79, 199, 154, .45); }

/* --- Ana sayfa bölümü --- */
@media (max-width: 640px) {
  .tb-tab { padding: 10px 8px; }
  .tool-card { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .tb-root, .tb-drawer, .tb-overlay, .tb-tab, .tool-card { transition: none; }
}

/* --- Panel detayları --- */
.tb-head { background: linear-gradient(135deg, rgba(111, 194, 224, .10), rgba(139, 156, 245, .08) 60%, transparent); }
.tb-head h2 { background: linear-gradient(90deg, #93d5ec, #b3bdff); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #93d5ec; }
.tb-body .tool-card { position: relative; overflow: hidden; }
.tb-body .tool-card::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: linear-gradient(180deg, var(--accent), transparent); opacity: .7; }
.tb-body .tool-card:nth-child(2)::after { background: linear-gradient(180deg, #9aa8ff, transparent); }

/* --- Üst menüdeki Toolbox düğmesi (.nav-product bağlantı stilinin düğme karşılığı) --- */
.site-nav button.nav-product {
  position: relative; padding: 8px 12px; margin-inline: 6px; border-radius: var(--r-sm);
  background: transparent; border: 1px solid var(--line-strong); color: var(--accent-strong);
  font-size: 14px; line-height: inherit; cursor: pointer; transition: color .18s, background .18s, border-color .18s;
}
.site-nav button.nav-product:hover { border-color: var(--accent); background: var(--accent-soft); }
.site-nav button.nav-product:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 900px) { .site-nav button.nav-product { padding: 13px 12px; font-size: 16px; margin: 6px 0; text-align: center; } }

/* Çok araçlı listede kartlar sıkışmasın; panel kaydırılır. */
.tb-body { grid-auto-rows: max-content; }
.tb-body .tool-card { min-height: max-content; }

/* ==== notes.css ==== */
/* Notlar paneli: Toolbox ile aynı görsel dil, sağ kenardan açılır. */
.nb-tab, .nb-root { font-family: var(--font); font-size: 16px; line-height: 1.65; color: var(--text); }
.nb-tab {
  position: fixed; right: 0; top: calc(50% + 108px); z-index: 40; transform: translateY(-50%);
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 10px; min-height: 44px;
  background: var(--surface); color: var(--text); border: 1px solid var(--line-strong); border-right: 0;
  border-radius: var(--r-md) 0 0 var(--r-md); font: 500 13px/1 var(--mono); letter-spacing: .04em; cursor: pointer;
  writing-mode: vertical-rl; text-orientation: mixed; transition: background .18s var(--ease), border-color .18s var(--ease), padding .18s var(--ease);
}
.nb-tab .i { width: 18px; height: 18px; color: var(--c-amber, var(--accent)); writing-mode: horizontal-tb; }
.nb-tab:hover { background: var(--accent-soft); border-color: var(--accent); padding-right: 14px; }
.nb-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nb-open .nb-tab { opacity: 0; pointer-events: none; }

.nb-root { position: fixed; inset: 0; z-index: 60; overflow: hidden; visibility: hidden; pointer-events: none; transition: visibility 0s linear .25s; }
.nb-open .nb-root { visibility: visible; pointer-events: auto; transition-delay: 0s; }
.nb-overlay { position: absolute; inset: 0; background: rgba(4, 6, 9, .6); opacity: 0; transition: opacity .2s var(--ease); }
.nb-drawer { position: absolute; top: 0; right: 0; bottom: 0; width: min(460px, calc(100% - 44px)); display: flex; flex-direction: column; background: var(--bg-elev); border-left: 1px solid var(--line-strong); transform: translateX(100%); transition: transform .25s var(--ease); }
.nb-open .nb-overlay { opacity: 1; }
.nb-open .nb-drawer { transform: none; }

.nb-head { display: flex; align-items: center; gap: 12px; padding: 18px 20px; border-bottom: 1px solid var(--line); background: linear-gradient(135deg, rgba(234, 185, 95, .10), rgba(139, 156, 245, .07) 60%, transparent); }
.nb-ht { flex: 1; min-width: 0; }
.nb-head h2 { font-size: 18px; letter-spacing: -.01em; color: var(--text); }
.nb-head p { color: var(--muted); font-size: 13.5px; margin-top: 2px; }
.nb-close, .nb-back { display: grid; place-items: center; flex: none; background: transparent; color: var(--muted); border: 1px solid var(--line-strong); border-radius: var(--r-sm); cursor: pointer; }
.nb-close { width: 40px; height: 40px; }
.nb-back { width: 40px; height: 40px; font-size: 0; }
.nb-back[hidden] { display: none; }
.nb-back .nb-back-i { width: 18px; height: 18px; transform: rotate(180deg); }
.nb-close:hover, .nb-back:hover { color: var(--text); border-color: var(--accent); }
.nb-close:focus-visible, .nb-back:focus-visible, .nb-card:focus-visible, .nb-copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nb-close .i { width: 18px; height: 18px; }

.nb-body { flex: 1; overflow-y: auto; padding: 18px 20px 24px; display: grid; gap: 12px; align-content: start; grid-auto-rows: max-content; }
.nb-foot { padding: 14px 20px; border-top: 1px solid var(--line); color: var(--soft); font-size: 12.5px; line-height: 1.5; }

.nb-card { display: grid; gap: 6px; text-align: left; padding: 16px 18px; background: var(--surface); color: inherit; border: 1px solid var(--line); border-radius: var(--r-lg); cursor: pointer; font: inherit; transition: border-color .18s var(--ease), transform .18s var(--ease); }
.nb-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.nb-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.nb-tag { font: 600 11.5px/1.6 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--c-amber, var(--accent-strong)); }
.nb-date { font: 500 12px/1 var(--mono); color: var(--soft); }
.nb-card-title { font-size: 16.5px; letter-spacing: -.01em; color: var(--text); }
.nb-card-sum { color: var(--muted); font-size: 14px; }

.nb-note { display: grid; gap: 14px; }
.nb-note p { color: #c3ccd9; font-size: 15px; }
.nb-note h3 { font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soft); margin-top: 4px; }
.nb-note ul { display: grid; gap: 8px; padding-left: 18px; list-style: disc; color: var(--muted); font-size: 14.5px; }
.nb-note li::marker { color: var(--accent); }
.nb-code { position: relative; }
.nb-code pre { margin: 0; padding: 14px 16px; padding-right: 88px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-sm); font: 400 13px/1.6 var(--mono); color: var(--accent-strong); overflow-x: auto; white-space: pre; }
.nb-copy { position: absolute; top: 8px; right: 8px; min-height: 30px; padding: 0 10px; background: var(--surface); color: var(--muted); border: 1px solid var(--line-strong); border-radius: 6px; font: 500 12px/1 var(--mono); cursor: pointer; }
.nb-copy:hover { color: var(--text); border-color: var(--accent); }

@media (max-width: 640px) { .nb-tab { padding: 10px 8px; } }
@media (prefers-reduced-motion: reduce) { .nb-root, .nb-drawer, .nb-overlay, .nb-tab, .nb-card { transition: none; } }

/* ==== loader.css ==== */
/* Sayfa geçişi: sudo / su mini klavyesi (dönen yuvarlak yerine). Temayla uyumlu, yalnızca mevcut belirteçler. */
.kb-ov { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; background: rgba(6, 8, 12, .72); opacity: 0; visibility: hidden; transition: opacity .18s var(--ease), visibility 0s linear .18s; }
.kb-ov.on { opacity: 1; visibility: visible; transition-delay: 0s; }
.kb-box { width: min(340px, calc(100vw - 40px)); padding: 16px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--r-lg); box-shadow: 0 24px 60px rgba(0, 0, 0, .55); font-family: var(--mono); }
.kb-term { min-height: 44px; padding: 10px 12px; margin-bottom: 12px; background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--r-sm); font-size: 14px; line-height: 1.5; color: var(--text); overflow: hidden; white-space: nowrap; }
.kb-term .p { color: var(--ok); }
.kb-term .c { display: inline-block; width: 8px; height: 15px; margin-left: 2px; vertical-align: -2px; background: var(--accent); animation: kb-blink 1s steps(1) infinite; }
.kb-term .root { color: var(--err); }
.kb-keys { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.kb-key { min-height: 40px; padding: 0 6px; display: grid; place-items: center; font: 600 14px/1 var(--mono); color: var(--text); background: var(--bg-elev); border: 1px solid var(--line-strong); border-bottom-width: 3px; border-radius: 8px; cursor: pointer; transition: transform .06s, background .12s, border-color .12s, color .12s; }
.kb-key:hover { border-color: var(--accent); color: var(--accent-strong); }
.kb-key.down, .kb-key:active { transform: translateY(2px); border-bottom-width: 1px; background: var(--accent-soft); border-color: var(--accent); color: var(--accent-strong); }
.kb-key:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.kb-key.wide { grid-column: span 2; font-size: 13px; }
.kb-key.enter { grid-column: span 2; color: var(--accent-strong); }
.kb-note { margin-top: 10px; text-align: center; color: var(--soft); font-size: 12px; letter-spacing: .06em; }
@keyframes kb-blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .kb-ov, .kb-key { transition: none; } .kb-term .c { animation: none; } }

/* ==== color.css ==== */
/* Renk katmanı: mevcut koyu temayı bozmadan bölümlere ve bileşenlere ayrı vurgu tonları ekler.
   Yalnızca base.css/site.css belirteçlerinin üzerine ekleme yapar. */
:root {
  --c-cyan: #6fc2e0;   --c-cyan-soft: rgba(111, 194, 224, .14);
  --c-indigo: #9aa8ff; --c-indigo-soft: rgba(139, 156, 245, .15);
  --c-green: #5fd3a5;  --c-green-soft: rgba(79, 199, 154, .14);
  --c-amber: #eab95f;  --c-amber-soft: rgba(224, 178, 90, .14);
  --c-rose: #f09ab8;   --c-rose-soft: rgba(229, 143, 176, .14);
  --grad: linear-gradient(90deg, #93d5ec 0%, #9aa8ff 55%, #c9a2f5 100%);
}

/* --- Zemin: ince renkli ışımalar --- */
body {
  background-image:
    radial-gradient(900px 500px at 8% -6%, rgba(111, 194, 224, .10), transparent 65%),
    radial-gradient(800px 480px at 96% 4%, rgba(139, 156, 245, .10), transparent 65%);
  background-repeat: no-repeat;
}
.section:nth-of-type(odd) { background-image: linear-gradient(180deg, rgba(139, 156, 245, .035), transparent 320px); }
.section:nth-of-type(even) { background-image: linear-gradient(180deg, rgba(111, 194, 224, .035), transparent 320px); }
.stack { background: linear-gradient(90deg, rgba(111, 194, 224, .06), rgba(139, 156, 245, .06)); }

/* --- Başlık ve vurgular --- */
.hero h1 {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: #93d5ec;
}
.hero-roles span:nth-child(1) { color: var(--c-cyan); }
.hero-roles span:nth-child(2) { color: var(--c-green); }
.hero-roles span:nth-child(3) { color: var(--c-amber); }
.hero-roles span:nth-child(4) { color: var(--c-indigo); }

#hakkimda .eyebrow { color: var(--c-cyan); }
#deneyim .eyebrow { color: var(--c-green); }
#yetkinlikler .eyebrow { color: var(--c-amber); }
#projeler .eyebrow { color: var(--c-indigo); }
#toolbox .eyebrow { color: var(--c-rose); }
#tehdit-haritasi .eyebrow { color: var(--c-rose); }
#iletisim .eyebrow { color: var(--c-green); }

/* --- Düğmeler --- */
.btn-primary { background-color: #6fc2e0; background-image: linear-gradient(90deg, #6fc2e0, #8fa3f5); }
.btn-primary:hover { background-color: #93d5ec; background-image: linear-gradient(90deg, #93d5ec, #aab8ff); }

/* --- Yetkinlik kartları: her karta kendi rengi --- */
.skill { position: relative; --c: var(--c-cyan); --cs: var(--c-cyan-soft); }
.skill::before { content: ""; position: absolute; left: 20px; right: 20px; top: 0; height: 2px; border-radius: 0 0 2px 2px; background: var(--c); opacity: .85; }
.skill:nth-child(2) { --c: var(--c-indigo); --cs: var(--c-indigo-soft); }
.skill:nth-child(3) { --c: var(--c-green); --cs: var(--c-green-soft); }
.skill:nth-child(4) { --c: var(--c-amber); --cs: var(--c-amber-soft); }
.skill:nth-child(5) { --c: var(--c-rose); --cs: var(--c-rose-soft); }
.skill .skill-icon { color: var(--c); background: var(--cs); border-color: var(--cs); }
.skill .tag { border-color: var(--cs); background: var(--cs); color: #d5dce8; }
.skill:hover { border-color: var(--c); }

/* --- Etiketler (teknik yığın şeridi) dönüşümlü tonlar --- */
.stack .tag:nth-child(4n+1) { border-color: rgba(111, 194, 224, .35); background: var(--c-cyan-soft); }
.stack .tag:nth-child(4n+2) { border-color: rgba(139, 156, 245, .35); background: var(--c-indigo-soft); }
.stack .tag:nth-child(4n+3) { border-color: rgba(79, 199, 154, .35); background: var(--c-green-soft); }
.stack .tag:nth-child(4n) { border-color: rgba(224, 178, 90, .35); background: var(--c-amber-soft); }

/* --- Zaman çizelgesi ve eğitim --- */
.t-item.is-current::before { border-color: var(--c-green); background: var(--c-green); box-shadow: 0 0 0 4px var(--c-green-soft); }
.t-item.is-current .t-badge { color: var(--c-green); border-color: rgba(79, 199, 154, .45); background: var(--c-green-soft); }
.t-item:not(.is-current) .t-badge { color: var(--c-amber); border-color: rgba(224, 178, 90, .4); background: var(--c-amber-soft); }
.t-item ul li::before { background: var(--c-cyan); }
.edu-item .t-badge { color: var(--c-indigo); border-color: rgba(139, 156, 245, .45); background: var(--c-indigo-soft); }
.edu-item:nth-of-type(1) .t-badge { color: var(--c-cyan); border-color: rgba(111, 194, 224, .45); background: var(--c-cyan-soft); }
.edu-item { border-left: 2px solid var(--c-indigo); padding-left: 16px; }
.edu-item:first-of-type { border-left-color: var(--c-cyan); }

/* --- Proje / ürün alanı --- */
.project { border-color: rgba(139, 156, 245, .28); }
.project-top { background: linear-gradient(90deg, rgba(111, 194, 224, .08), rgba(139, 156, 245, .08)); }
.road .t-badge { color: var(--c-amber); border-color: rgba(224, 178, 90, .4); }
.road.is-now .t-badge { color: var(--c-green); border-color: rgba(79, 199, 154, .45); }
.road.is-now { border-left-color: var(--c-green); }
.road:nth-child(2) { border-left-color: var(--c-amber); }
.road:nth-child(3) { border-left-color: var(--c-rose); }
.road:nth-child(3) .t-badge { color: var(--c-rose); border-color: rgba(229, 143, 176, .4); }

/* --- Toolbox --- */
.tool-card.is-on .t-badge { color: var(--c-green); background: var(--c-green-soft); }
.tool-card.is-on .skill-icon { color: var(--c-cyan); background: var(--c-cyan-soft); border-color: var(--c-cyan-soft); }
.tool-card.is-on:nth-child(2) .skill-icon { color: var(--c-indigo); background: var(--c-indigo-soft); border-color: var(--c-indigo-soft); }
.tb-tab .i { color: var(--c-rose); }

@media (prefers-reduced-motion: reduce) { .skill, .tool-card { transition: none; } }

/* ==== polish.css ==== */
/* İnce yazı ve detay katmanı: tipografi, bölüm başlıkları, proje kartları. Mevcut düzeni değiştirmez. */

/* --- Tipografi --- */
body { font-kerning: normal; font-variant-ligatures: common-ligatures; }
h1, h2, h3, h4 { text-wrap: balance; }
p, li, dd { text-wrap: pretty; }
.lead, .section-head p, .about-body p { letter-spacing: .003em; }
.section-head h2 {
  background: linear-gradient(180deg, #f4f7fb 30%, #b8c4d6 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: #e8ecf2;
}
.section-head .eyebrow { display: inline-flex; align-items: center; gap: 12px; }
.section-head .eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }
.eyebrow { letter-spacing: .16em; }

/* --- Bölüm ayırıcı: uçlarda kaybolan ince çizgi --- */
.section { border-top-color: transparent; position: relative; }
.section::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 20%, var(--line-strong) 80%, transparent);
}

/* --- Üst çubuk: alt kenarda renkli ince çizgi --- */
.site-header { box-shadow: 0 1px 0 rgba(111, 194, 224, .08), 0 8px 24px -16px rgba(0, 0, 0, .6); }

/* --- Düğmeler --- */
.btn-primary { box-shadow: 0 6px 18px -8px rgba(111, 194, 224, .55); transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px -8px rgba(139, 156, 245, .6); }
.btn-primary:active { transform: translateY(1px); }

/* --- Kartlar: üzerine gelince ince ışıma --- */
.panel { transition: border-color .2s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease); }
.skill:hover, .feature:hover { box-shadow: 0 14px 34px -22px rgba(111, 194, 224, .5); transform: translateY(-2px); }

/* --- Küçük canlılık: durum noktası nabzı --- */
@keyframes dot-pulse { 0% { box-shadow: 0 0 0 0 rgba(79, 199, 154, .55); } 70% { box-shadow: 0 0 0 7px rgba(79, 199, 154, 0); } 100% { box-shadow: 0 0 0 0 rgba(79, 199, 154, 0); } }
.dot.ok { animation: dot-pulse 2.4s ease-out infinite; }

/* --- Kaydırma çubuğu ve seçim --- */
html { scrollbar-color: var(--line-strong) var(--bg); scrollbar-width: thin; }
::selection { background: rgba(139, 156, 245, .32); }

/* --- Altbilgi bağlantıları: alt çizgi animasyonu --- */
.footer-links a { background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size .25s var(--ease), color .2s; padding-bottom: 2px; }
.footer-links a:hover { background-size: 100% 1px; color: var(--accent-strong); }

/* ============ Projeler ============ */
.proj-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.proj {
  --c: var(--c-cyan); --cs: var(--c-cyan-soft);
  position: relative; overflow: hidden; display: flex; flex-direction: column; gap: 18px; padding: 30px;
}
.proj-dns { --c: var(--c-indigo); --cs: var(--c-indigo-soft); }
.proj::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--c), transparent 85%); }
.proj::after { content: ""; position: absolute; top: -90px; right: -90px; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle, var(--cs), transparent 70%); pointer-events: none; }
.proj:hover { border-color: var(--c); transform: translateY(-3px); box-shadow: 0 22px 46px -30px var(--c); }
.proj > * { position: relative; z-index: 1; }

.proj-head { display: flex; align-items: center; gap: 16px; }
.proj-icon { display: grid; place-items: center; flex: none; width: 52px; height: 52px; border-radius: 14px; color: var(--c); background: var(--cs); border: 1px solid var(--cs); }
.proj-icon .i { width: 26px; height: 26px; }
.proj-title { min-width: 0; flex: 1; }
.proj-title h3 { font-size: 24px; letter-spacing: -.02em; }
.proj-sub { margin-top: 3px; color: var(--soft); font: 500 12.5px/1.4 var(--mono); letter-spacing: .02em; }
.proj-no { align-self: flex-start; font: 500 13px/1 var(--mono); letter-spacing: .1em; color: var(--c); opacity: .8; }
.proj .badge { align-self: flex-start; }

.proj-lead { color: #c3ccd9; font-size: 16.5px; line-height: 1.7; }
.proj-list { display: grid; gap: 10px; }
.proj-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--muted); font-size: 15px; line-height: 1.55; }
.proj-list .i { flex: none; width: 17px; height: 17px; margin-top: 3px; color: var(--c); }

.proj-meta { display: grid; gap: 12px 20px; grid-template-columns: max-content minmax(0, 1fr); margin: 4px 0 0; padding-top: 18px; border-top: 1px dashed var(--line-strong); }
.proj-meta > div:nth-child(2) { grid-column: 1 / -1; order: 3; }
.proj-meta dt { font: 500 11.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--soft); margin-bottom: 6px; }
.proj-meta dd { margin: 0; font-size: 14.5px; color: var(--text); }
.proj .btn-row { margin-top: auto; padding-top: 6px; }

@media (max-width: 900px) { .proj-grid { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .proj { padding: 22px; } .proj-title h3 { font-size: 21px; } }
@media (prefers-reduced-motion: reduce) { .dot.ok { animation: none; } .proj, .panel, .btn-primary { transition: none; } }

/* ============ Projeler: kompakt araç kartları ============ */
.tc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.tcard { --c: var(--c-cyan); --cs: var(--c-cyan-soft); position: relative; overflow: hidden; display: flex; flex-direction: column; gap: 6px; padding: 18px; color: inherit; text-decoration: none; transition: border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease); }
.tc-indigo { --c: var(--c-indigo); --cs: var(--c-indigo-soft); } .tc-green { --c: var(--c-green); --cs: var(--c-green-soft); }
.tc-amber { --c: var(--c-amber); --cs: var(--c-amber-soft); } .tc-rose { --c: var(--c-rose); --cs: var(--c-rose-soft); }
.tcard::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: linear-gradient(90deg, var(--c), transparent 80%); }
.tcard:hover { border-color: var(--c); transform: translateY(-2px); box-shadow: 0 18px 38px -28px var(--c); }
.tcard:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tc-wide { grid-column: span 2; }
.tc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.tc-icon { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; color: var(--c); background: var(--cs); border: 1px solid var(--cs); }
.tc-icon .i { width: 19px; height: 19px; }
.tc-no { font: 500 12px/1 var(--mono); letter-spacing: .1em; color: var(--c); opacity: .8; }
.tcard h3 { font-size: 17px; letter-spacing: -.01em; }
.tc-sub { color: var(--soft); font: 500 11.5px/1.4 var(--mono); letter-spacing: .02em; }
.tc-desc { color: var(--muted); font-size: 14px; line-height: 1.55; margin-top: 4px; flex: 1; }
.tc-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.tc-go { display: inline-flex; align-items: center; gap: 4px; color: var(--c); font: 500 13px/1 var(--mono); }
.tc-go .i { width: 14px; height: 14px; }
@media (max-width: 1100px) { .tc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .tc-wide { grid-column: 1 / -1; } }
@media (max-width: 560px) { .tc-grid { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .tcard { transition: none; } }

/* ==== dns-checker.css ==== */
/* DNS Checker sayfası. Yalnızca mevcut belirteçleri kullanır. */
.dc-hero { padding: 72px 0 40px; }
.dc-hero h1 { font-size: clamp(38px, 6vw, 64px); }
.dc-section { border-top: 0; padding-top: 24px; }
.dc-wrap { display: grid; gap: 28px; max-width: 920px; }

.dc-form { padding: 26px; display: grid; gap: 20px; }
.dc-row { display: flex; flex-wrap: wrap; gap: 16px; }
.dc-field { display: grid; gap: 8px; min-width: 0; }
.dc-field[hidden] { display: none; }
.dc-grow { flex: 1 1 260px; }
.dc-field label, .dc-fieldset legend { font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soft); }
.dc-field input, .dc-field select {
  width: 100%; min-height: 46px; padding: 10px 14px;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  font: 400 16px/1.4 var(--mono);
}
.dc-field select { font-family: var(--mono); }
.dc-field input::placeholder { color: var(--soft); }
.dc-field input:focus-visible, .dc-field select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.dc-fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 12px; }
.dc-fieldset legend { padding: 0; margin-bottom: 12px; }
.dc-checks { display: flex; flex-wrap: wrap; gap: 8px; }
.dc-check { position: relative; }
.dc-check input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.dc-check span {
  display: inline-block; padding: 7px 14px; border: 1px solid var(--line-strong); border-radius: 999px;
  font: 500 13px/1.4 var(--mono); color: var(--muted); background: var(--bg-elev);
  transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);
}
.dc-check input:checked + span { color: var(--accent-strong); border-color: rgba(111, 194, 224, .55); background: var(--accent-soft); }
.dc-check input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.dc-hint { color: var(--soft); font-size: 13.5px; }
.dc-form .btn[disabled] { opacity: .6; cursor: progress; }

.dc-status { min-height: 0; color: var(--muted); font-size: 15px; }
.dc-status:empty { display: none; }
.dc-status.is-error { padding: 14px 18px; border: 1px solid rgba(241, 154, 154, .45); border-radius: var(--r-md); background: rgba(241, 154, 154, .08); color: var(--err); }
.dc-status.is-note { padding: 12px 16px; border: 1px solid rgba(224, 178, 90, .4); border-radius: var(--r-md); background: rgba(224, 178, 90, .08); color: var(--warn); }

.dc-results { display: grid; gap: 20px; }
.dc-card { padding: 22px 24px; display: grid; gap: 14px; }
.dc-card h2 { font-size: 18px; letter-spacing: -.01em; }
.dc-card h3 { font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soft); margin-top: 6px; }
.dc-issues { display: grid; gap: 8px; }
.dc-issues li { display: flex; gap: 10px; align-items: baseline; padding: 8px 12px; border-left: 3px solid var(--line-strong); background: var(--bg-elev); border-radius: 0 var(--r-sm) var(--r-sm) 0; font-size: 14.5px; color: var(--text); }
.dc-lvl { flex: none; font: 600 11.5px/1.6 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.lvl-ok { border-left-color: var(--ok); } .lvl-ok .dc-lvl { color: var(--ok); }
.lvl-info { border-left-color: var(--accent); } .lvl-info .dc-lvl { color: var(--accent-strong); }
.lvl-warn { border-left-color: var(--warn); } .lvl-warn .dc-lvl { color: var(--warn); }
.lvl-error { border-left-color: var(--err); } .lvl-error .dc-lvl { color: var(--err); }

.dc-tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-sm); }
.dc-tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.dc-tbl th { text-align: left; padding: 9px 12px; font: 500 12px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--soft); background: var(--bg-elev); border-bottom: 1px solid var(--line); white-space: nowrap; }
.dc-tbl td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; font-family: var(--mono); font-size: 13.5px; color: var(--text); overflow-wrap: anywhere; word-break: break-word; }
.dc-tbl tr:last-child td { border-bottom: 0; }
.dc-kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 14px; }
.dc-kv dt { color: var(--soft); font-family: var(--mono); font-size: 13px; }
.dc-kv dd { margin: 0; font-family: var(--mono); font-size: 13.5px; overflow-wrap: anywhere; }
.dc-code { display: block; padding: 12px 14px; background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--r-sm); font: 400 13.5px/1.6 var(--mono); overflow-wrap: anywhere; word-break: break-word; }
.dc-empty { color: var(--muted); font-size: 14.5px; }

@media (max-width: 640px) { .dc-form, .dc-card { padding: 18px; } .dc-hero { padding: 48px 0 24px; } }

/* ==== tools.css ==== */
/* Yeni araç sayfaları: SSL, Blacklist, WHOIS, Port, Şifre üretici. dns-checker.css sınıflarını kullanır. */
.nt-pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font: 600 12px/1.6 var(--mono); border: 1px solid var(--line-strong); }
.nt-pill.ok { color: var(--ok); border-color: rgba(79, 199, 154, .5); background: rgba(79, 199, 154, .08); }
.nt-pill.warn { color: var(--warn); border-color: rgba(224, 178, 90, .5); background: rgba(224, 178, 90, .08); }
.nt-pill.err { color: var(--err); border-color: rgba(241, 154, 154, .5); background: rgba(241, 154, 154, .08); }

.pw-panel { gap: 16px; }
.pw-out { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.pw-value { flex: 1 1 320px; min-width: 0; padding: 16px 18px; background: var(--bg-elev); border: 1px solid var(--line-strong); border-radius: var(--r-sm); font: 500 20px/1.5 var(--mono); letter-spacing: .02em; overflow-wrap: anywhere; word-break: break-all; color: var(--accent-strong); }
.pw-actions { display: flex; gap: 10px; }
.pw-meter { height: 6px; background: var(--bg-elev); border-radius: 999px; overflow: hidden; border: 1px solid var(--line); }
.pw-meter span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s var(--ease), background .2s var(--ease); }
.pw-meter .pw-err { background: var(--err); } .pw-meter .pw-warn { background: var(--warn); } .pw-meter .pw-ok { background: var(--ok); }
.pw-meta { color: var(--muted); font: 500 13px/1.4 var(--mono); }
#pw-len { padding: 0; min-height: 28px; accent-color: var(--accent); background: transparent; border: 0; }
@media (max-width: 640px) { .pw-value { font-size: 17px; } }
@media (prefers-reduced-motion: reduce) { .pw-meter span { transition: none; } }

.cr-chip { min-height: 34px; padding: 4px 12px; font-size: 13px; }

/* ==== theme.css ==== */
/* Tema düğmesi ve AÇIK TEMA. Sitenin özgün koyu "cyber" paleti varsayılandır; bu dosya yalnızca
   açık temayı ve üst çubuktaki düğmeyi ekler (assets/js/theme.js, <html data-theme="light">). */

/* ---------------------------------------------------------------- Tema düğmesi */
.header-inner { justify-content: flex-start; }
.header-inner .site-nav { margin-left: auto; }
.theme-toggle { display: inline-flex; align-items: center; gap: 8px; height: 38px; margin-left: 10px; padding: 0 12px 0 8px; flex: none;
  border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); color: var(--text); font: 600 13px/1 var(--font);
  transition: border-color .18s, box-shadow .18s, background .18s; }
.theme-toggle:hover { border-color: var(--c-amber, #eab95f); box-shadow: 0 0 0 3px rgba(224, 178, 90, .14); }
.theme-toggle .tt-icon { position: relative; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; overflow: hidden;
  background: rgba(224, 178, 90, .14); color: var(--c-amber, #eab95f); }
.theme-toggle .i { position: absolute; width: 15px; height: 15px; transition: transform .5s var(--ease), opacity .3s var(--ease); }
.theme-toggle .i-moon { transform: translateY(22px) rotate(-90deg); opacity: 0; }
.theme-toggle .tt-text::before { content: "Açık tema"; }
:root[data-theme="light"] .theme-toggle .tt-text::before { content: "Koyu tema"; }
:root[data-theme="light"] .theme-toggle .tt-icon { background: rgba(85, 98, 224, .12); color: #5562e0; }
:root[data-theme="light"] .theme-toggle:hover { border-color: #5562e0; box-shadow: 0 0 0 3px rgba(85, 98, 224, .12); }
:root[data-theme="light"] .theme-toggle .i-moon { transform: none; opacity: 1; }
:root[data-theme="light"] .theme-toggle .i-sun { transform: translateY(-22px) rotate(90deg); opacity: 0; }
.theme-anim, .theme-anim * { transition: background-color .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease) !important; }
@media (max-width: 900px) {
  .theme-toggle { order: 2; margin-left: auto; margin-right: 8px; }
  .nav-toggle { order: 3; }
}
@media (max-width: 420px) { .theme-toggle .tt-text { display: none; } .theme-toggle { padding: 0 7px; } }

/* Harita her zaman açık */
#map-frame.is-loaded iframe { height: 540px; }
@media (max-width: 700px) { #map-frame.is-loaded iframe { height: 380px; } }

/* ---------------------------------------------------------------- AÇIK TEMA (aynı palet, açık zemin) */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f7fb; --bg-elev: #ffffff; --surface: #ffffff; --surface-2: #eef2f8;
  --line: #e1e6ee; --line-strong: #cdd5e1;
  --text: #0e1522; --muted: #4a5568; --soft: #6b7689;
  --accent: #1a86b0; --accent-strong: #136f93; --accent-ink: #ffffff; --accent-soft: rgba(26, 134, 176, .09);
  --ok: #18946a; --warn: #a96f12; --err: #c2414b;
  --c-cyan: #1a86b0;   --c-cyan-soft: rgba(26, 134, 176, .10);
  --c-indigo: #5562e0; --c-indigo-soft: rgba(85, 98, 224, .10);
  --c-green: #18946a;  --c-green-soft: rgba(24, 148, 106, .10);
  --c-amber: #a96f12;  --c-amber-soft: rgba(201, 138, 28, .12);
  --c-rose: #c2457a;   --c-rose-soft: rgba(194, 69, 122, .10);
  --grad: linear-gradient(90deg, #1a86b0 0%, #5562e0 55%, #8b4fd6 100%);
}
:root[data-theme="light"] body { background-color: var(--bg); color: var(--text);
  background-image: radial-gradient(900px 500px at 8% -6%, rgba(111, 194, 224, .16), transparent 65%), radial-gradient(800px 480px at 96% 4%, rgba(154, 168, 255, .16), transparent 65%); }
:root[data-theme="light"] .site-header { background: rgba(255, 255, 255, .8); box-shadow: 0 1px 0 rgba(26, 134, 176, .08), 0 10px 30px -22px rgba(30, 50, 90, .35); }
:root[data-theme="light"] .site-nav a:hover { background: var(--surface-2); }
@media (max-width: 900px) { :root[data-theme="light"] .site-nav { background: #fff; box-shadow: 0 20px 40px -24px rgba(30, 50, 90, .35); } }
:root[data-theme="light"] .section-head h2 { background: linear-gradient(180deg, #0e1522 35%, #3b4a63 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #0e1522; }
:root[data-theme="light"] .hero h1, :root[data-theme="light"] .app-hero h1, :root[data-theme="light"] .p-hero h1 { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--accent); }
:root[data-theme="light"] .about-body p, :root[data-theme="light"] .proj-lead, :root[data-theme="light"] .project-main p, :root[data-theme="light"] .nb-note p { color: var(--muted); }
:root[data-theme="light"] .skill .tag, :root[data-theme="light"] .tag { color: var(--text); }
:root[data-theme="light"] .badge { color: var(--ok); border-color: rgba(24, 148, 106, .3); background: rgba(24, 148, 106, .07); }
:root[data-theme="light"] .notice { color: #7a5410; }
:root[data-theme="light"] .tb-head h2 { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
:root[data-theme="light"] .btn-primary { background-color: #1a86b0; background-image: linear-gradient(90deg, #1a86b0, #5562e0); color: #fff; box-shadow: 0 8px 20px -10px rgba(26, 134, 176, .7); }
:root[data-theme="light"] .btn-primary:hover { background-image: linear-gradient(90deg, #1793c2, #6370ee); }
:root[data-theme="light"] .hero-news b { background: linear-gradient(90deg, #1a86b0, #5562e0); color: #fff; }
:root[data-theme="light"] .hero-news { background: rgba(255, 255, 255, .7); }
:root[data-theme="light"] .signature { filter: brightness(0); opacity: .7; }
:root[data-theme="light"] .photo img { background: #eef2f8; }
:root[data-theme="light"] .shot { box-shadow: 0 30px 60px -34px rgba(30, 50, 90, .45); border-color: #c5cedb; }
:root[data-theme="light"] .panel:hover { box-shadow: 0 18px 40px -30px rgba(30, 50, 90, .35); }
:root[data-theme="light"] .stack { background: linear-gradient(90deg, rgba(26, 134, 176, .06), rgba(85, 98, 224, .06)); }
:root[data-theme="light"] .hash { background: var(--surface-2); }
:root[data-theme="light"] .hero::before, :root[data-theme="light"] .p-hero::before, :root[data-theme="light"] .app-hero::before { opacity: .55; }
:root[data-theme="light"] ::selection { background: rgba(85, 98, 224, .2); }
:root[data-theme="light"] .section:nth-of-type(odd) { background-image: linear-gradient(180deg, rgba(85, 98, 224, .04), transparent 320px); }
:root[data-theme="light"] .section:nth-of-type(even) { background-image: linear-gradient(180deg, rgba(26, 134, 176, .04), transparent 320px); }

/* ==== motion.css ==== */
/* Tasarım ve hareket katmanı (motion.js ile).
   Yalnızca <html class="motion"> varken, yani "hareketi azalt" tercihi kapalıyken çalışır; içerikte hiçbir şeyi değiştirmez. */

@property --ang { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@property --ax { syntax: "<percentage>"; inherits: false; initial-value: 18%; }
@property --ay { syntax: "<percentage>"; inherits: false; initial-value: 30%; }
@property --bx { syntax: "<percentage>"; inherits: false; initial-value: 82%; }
@property --by { syntax: "<percentage>"; inherits: false; initial-value: 70%; }

@keyframes rise { from { opacity: 0; transform: translateY(34px); filter: blur(10px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes grad-pan { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }
@keyframes spin-border { to { --ang: 360deg; } }
@keyframes aurora {
  0%   { --ax: 15%; --ay: 25%; --bx: 85%; --by: 75%; }
  50%  { --ax: 48%; --ay: 72%; --bx: 58%; --by: 18%; }
  100% { --ax: 82%; --ay: 28%; --bx: 22%; --by: 62%; }
}

/* --- Genel belirme: daha uzaktan, hafif küçük ve bulanık gelir --- */
.motion .reveal { transition: opacity .95s var(--ease), transform .95s var(--ease), filter .95s var(--ease); }
.motion .reveal:not(.is-visible) { transform: translateY(40px) scale(.97); filter: blur(6px); }
/* belirme bittikten sonra (motion.js .is-settled ekler) üzerine gelme efektleri hızlı olsun */
.motion .reveal.is-settled { transition: opacity .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease), border-color .2s var(--ease), filter .3s var(--ease); }
/* ızgaradaki sıralı geliş (gecikme motion.js'ten --d ile) */
.motion .reveal[data-stagger].is-visible { transition-delay: var(--d); }

/* --- Açılış: başlık alanındaki öğeler sırayla, bulanıktan netleşerek gelir --- */
.motion .hero .reveal:not(.facts), .motion .app-hero .reveal:first-child { opacity: 1; transform: none; filter: none; }
.motion .hero .reveal:not(.facts) > *, .motion .app-hero .reveal:first-child > * { animation: rise 1s var(--ease) both; }
.motion .hero .reveal:not(.facts) > :nth-child(1), .motion .app-hero .reveal:first-child > :nth-child(1) { animation-delay: .05s; }
.motion .hero .reveal:not(.facts) > :nth-child(2), .motion .app-hero .reveal:first-child > :nth-child(2) { animation-delay: .17s; }
.motion .hero .reveal:not(.facts) > :nth-child(4), .motion .app-hero .reveal:first-child > :nth-child(4) { animation-delay: .43s; }
.motion .hero .reveal:not(.facts) > :nth-child(5), .motion .app-hero .reveal:first-child > :nth-child(5) { animation-delay: .55s; }
.motion .hero .reveal:not(.facts) > :nth-child(6), .motion .app-hero .reveal:first-child > :nth-child(6) { animation-delay: .67s; }

/* İsim/uygulama adı: gelişten sonra gradyan akar (açık tema kuralını da ezmek için :root ile) */
:root.motion .hero h1, :root.motion .app-hero h1 {
  background-size: 160% 100%;
  animation: rise 1.1s var(--ease) .29s both, grad-pan 7s ease-in-out 1.4s infinite alternate;
}

/* Profil kartı ve ekran görüntüsü yandan süzülür */
.motion .hero .facts.reveal:not(.is-visible), .motion .app-hero .shot-glow.reveal:not(.is-visible) { transform: translateX(64px) scale(.97); }
.motion .hero .facts.reveal, .motion .app-hero .shot-glow.reveal { transition-duration: 1.1s; }

/* Başlık alanı: yavaşça gezinen renkli ışık bulutları + imleci izleyen ışık */
.motion .hero, .motion .app-hero {
  background-image:
    radial-gradient(560px circle at var(--hx, 78%) var(--hy, 18%), rgba(154, 168, 255, .13), transparent 62%),
    radial-gradient(720px 440px at var(--ax, 18%) var(--ay, 30%), rgba(111, 194, 224, .11), transparent 66%),
    radial-gradient(620px 400px at var(--bx, 82%) var(--by, 70%), rgba(201, 162, 245, .1), transparent 66%);
  animation: aurora 24s ease-in-out infinite alternate;
}
:root.motion[data-theme="light"] .hero, :root.motion[data-theme="light"] .app-hero {
  background-image:
    radial-gradient(560px circle at var(--hx, 78%) var(--hy, 18%), rgba(85, 98, 224, .1), transparent 62%),
    radial-gradient(720px 440px at var(--ax, 18%) var(--ay, 30%), rgba(26, 134, 176, .09), transparent 66%),
    radial-gradient(620px 400px at var(--bx, 82%) var(--by, 70%), rgba(139, 79, 214, .08), transparent 66%);
}

/* --- Profil kartı ve uygulama kartları: kenarda dönen renkli ışık --- */
.motion .facts { position: relative; }
.motion :is(.facts, .app-show)::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: conic-gradient(from var(--ang), transparent 0 58%, #93d5ec 70%, #9aa8ff 80%, #c9a2f5 89%, transparent 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  animation: spin-border 7s linear infinite;
}
.motion .app-show::after { opacity: .55; transition: opacity .4s var(--ease); }
.motion .app-show:hover::after { opacity: 1; }

/* --- Kaydırma ilerleme çizgisi + kaydırırken derinlik (destekleyen tarayıcılarda, JS'siz) --- */
@supports (animation-timeline: scroll()) {
  @keyframes progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
  .motion .site-header::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; pointer-events: none;
    background: var(--grad); transform-origin: 0 50%; box-shadow: 0 0 12px rgba(154, 168, 255, .6);
    animation: progress linear both; animation-timeline: scroll(root);
  }
}
@supports (animation-timeline: view()) {
  @keyframes depth { from { translate: 0 48px; } to { translate: 0 -48px; } }
  .motion :is(.app-show .shot-glow, .gallery .shot, .promo-videos .promo) { animation: depth linear both; animation-timeline: view(); animation-range: cover; }
}

/* --- Bölüm etiketlerinin yanındaki çizgi uzayarak gelir --- */
.motion .section-head.reveal .eyebrow::before { width: 0; transition: width 1s var(--ease) .3s; }
.motion .section-head.reveal.is-visible .eyebrow::before { width: 44px; }

/* --- Kartlar: imleci izleyen ışık, belirgin yükselme ve renkli gölge (yalnızca fareyle) --- */
@media (hover: hover) and (pointer: fine) {
  .motion :is(.tcard, .skill, .panel, .app-show, .contact-link) {
    background-image: radial-gradient(460px circle at var(--mx, -999px) var(--my, -999px), rgba(147, 213, 236, .13), transparent 45%);
  }
  :root.motion[data-theme="light"] :is(.tcard, .skill, .panel, .app-show, .contact-link) {
    background-image: radial-gradient(460px circle at var(--mx, -999px) var(--my, -999px), rgba(85, 98, 224, .1), transparent 45%);
  }
  .motion :is(.tcard, .skill, .feat, .contact-link, .dl-card, .steps-row > li):hover {
    transform: translateY(-6px); box-shadow: 0 26px 50px -28px var(--c, rgba(111, 194, 224, .7));
  }

  /* Ekran görüntüleri imlece göre eğilir */
  .motion .shot-glow { perspective: 1200px; }
  .motion .shot-glow > * { transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .5s var(--ease); }

  /* Uygulama kartında ekran görüntüsü yakınlaşır */
  .motion .app-show .shot img { transition: transform .8s var(--ease); }
  .motion .app-show:hover .shot img { transform: scale(1.045); }

  /* Butonlar imlece doğru hafifçe çekilir (mıknatıs; değerler motion.js'ten) */
  .motion .btn { translate: var(--tx, 0) var(--ty, 0); transition: background .18s, border-color .18s, color .18s, box-shadow .18s var(--ease), transform .18s var(--ease), translate .35s var(--ease); }
}

/* --- Araç kartlarının üst çizgisi üzerine gelince renkle dolar --- */
.motion .tcard::before { background: linear-gradient(90deg, var(--c), var(--c)) 0 0 / 34% 100% no-repeat; transition: background-size .6s var(--ease); }
.motion .tcard:hover::before { background-size: 100% 100%; }

/* --- Ana butonlarda parıltı geçişi --- */
.motion .btn-primary { position: relative; overflow: hidden; }
.motion .btn-primary::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(110deg, transparent 28%, rgba(255, 255, 255, .55) 50%, transparent 72%);
  transform: translateX(-130%); transition: transform .8s var(--ease);
}
.motion .btn-primary:hover::after { transform: translateX(130%); }

/* --- SSS: açılan cevap yumuşakça gelir --- */
@keyframes faq-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
.motion details[open] > :not(summary) { animation: faq-in .45s var(--ease); }

/* --- Teknoloji etiketleri ve ikonlar: üzerine gelince hareket --- */
.motion .stack-inner > span:not(.eyebrow):hover { transform: translateY(-3px); border-color: var(--accent); }
.motion .skill-icon, .motion .tc-icon { transition: transform .4s var(--ease); }
.motion :is(.skill, .tcard, .feat):hover :is(.skill-icon, .tc-icon) { transform: translateY(-3px) rotate(-8deg) scale(1.08); }