/* keremcep.dev — "gece havaalanı".
   Kavram: hava trafiği. Ana sayfa gece gökyüzü; ziyaretçi rota çizer, uçak izler (Tiny Airport'un oyun mekaniği).
   Tek bilinçli tema (koyu). Renk: gece laciverti zemin, kobalt ve turkuaz ışık, Tiny Airport turuncusu pist ışıkları.
   Yazı: Geologica (değişken, tek aile). Cesaret tek yerde: ana sayfa gökyüzü + büyük başlık; geri kalan sakin. */

@font-face { font-family: "Geologica"; src: url("/assets/fonts/geologica-latin.woff2") format("woff2");
  font-weight: 300 700; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Geologica"; src: url("/assets/fonts/geologica-latin-ext.woff2") format("woff2");
  font-weight: 300 700; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --sky: #060B1A;
  --sky-2: #0B1530;
  --sky-3: #111E3F;
  --ink: #EAF0FA;
  --ink-2: #97A6C1;
  --line: #1F2D4D;
  --cobalt: #6F8BFF;
  --teal: #2FE0CF;
  --amber: #FF9A3D;
  --font: "Geologica", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  --wrap: 1240px;
  --gutter: max(20px, 4vw);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--sky); }
body { margin: 0; background: var(--sky); color: var(--ink); font: 350 1.0625rem/1.65 var(--font); text-rendering: optimizeLegibility; }
img, svg, canvas { max-width: 100%; display: block; }
figure { margin: 0; }
a { color: var(--teal); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 3px; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--sky); padding: 8px 12px; z-index: 20; }
.skip:focus { left: 12px; top: 12px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

h1, h2, h3 { font-weight: 650; line-height: 1.08; letter-spacing: -0.025em; text-wrap: balance; margin: 0; }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); letter-spacing: -0.035em; }
h3 { font-size: 1.3rem; letter-spacing: -0.015em; }
p { margin: 0; }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 38em; }
code { font-family: var(--mono); font-size: 0.88em; color: var(--ink); }

/* Üst bilgi */
.site-header { position: absolute; inset: 0 0 auto 0; z-index: 10; }
body:not(.home) .site-header { position: relative; border-bottom: 1px solid var(--line); background: var(--sky); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; flex-wrap: wrap; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 1.08rem; letter-spacing: -0.01em; }
.wordmark-mark { width: 26px; height: 26px; color: var(--amber); }
.site-nav { display: flex; gap: 26px; flex-wrap: wrap; }
.site-nav a { color: var(--ink-2); text-decoration: none; font-size: 0.97rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }

/* Ana sayfa gökyüzü */
.sky { position: relative; min-height: clamp(620px, 92vh, 900px); overflow: hidden; isolation: isolate;
  background:
    radial-gradient(60% 55% at 78% 30%, rgba(111, 139, 255, 0.20), transparent 70%),
    radial-gradient(45% 50% at 15% 85%, rgba(47, 224, 207, 0.12), transparent 70%),
    linear-gradient(180deg, #050915 0%, var(--sky) 60%, #081128 100%); }
.sky canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; cursor: crosshair; touch-action: pan-y; }
.sky-content { position: relative; z-index: 1; min-height: inherit; display: grid; align-content: end;
  padding-block: 120px clamp(48px, 8vh, 96px); pointer-events: none; }
.sky-content a { pointer-events: auto; }
.sky h1 { font-size: clamp(3rem, 8.4vw, 7.4rem); font-weight: 700; letter-spacing: -0.05em; line-height: 0.95; max-width: 11ch; }
.sky .lede { margin-top: 26px; color: #B8C4DA; }
.sky-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-top: 34px; }
.sky-hint { position: absolute; right: var(--gutter); bottom: clamp(48px, 8vh, 96px); z-index: 1; color: var(--ink-2); font-size: 0.92rem;
  display: flex; align-items: center; gap: 10px; pointer-events: none; }
.sky-hint::before { content: ""; width: 34px; height: 0; border-top: 1.5px dashed var(--teal); }

.button { display: inline-flex; align-items: center; gap: 10px; background: var(--ink); color: var(--sky); text-decoration: none;
  padding: 13px 20px; border-radius: 999px; font-weight: 550; transition: background .2s, color .2s; }
.button:hover { background: var(--amber); color: #1A0E02; text-decoration: none; }
.button.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.button.ghost:hover { box-shadow: inset 0 0 0 1px var(--ink-2); background: transparent; color: var(--ink); }

/* Vitrin */
.section { padding-block: clamp(80px, 12vw, 160px); }
.section-head { display: grid; gap: 16px; margin-bottom: clamp(48px, 7vw, 88px); max-width: 46em; }
.showcase { display: grid; gap: clamp(96px, 14vw, 180px); }
.show { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.show.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.show.flip .show-text { order: 2; }
.show-text { display: grid; gap: 18px; align-content: start; }
.show-text h3 { font-size: clamp(2rem, 3.6vw, 3rem); letter-spacing: -0.04em; font-weight: 650; }
.show-text p { color: var(--ink-2); max-width: 32em; }
.status { display: inline-flex; align-items: center; gap: 9px; font-size: 0.92rem; color: var(--ink-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 12px var(--teal); }
.dot.dev { background: transparent; border: 1.5px solid var(--cobalt); box-shadow: none; }
.facts-inline { display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--ink-2); font-size: 0.92rem; }
.show-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

/* Tiny Airport: telefon kareleri */
.phones { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(12px, 2vw, 24px); align-items: center; }
.phones::before { content: ""; position: absolute; inset: 8% -6% 8% -6%; z-index: -1; border-radius: 40px;
  background: radial-gradient(60% 60% at 50% 50%, rgba(255, 154, 61, 0.22), transparent 70%); }
.phone { border-radius: 26px; overflow: hidden; box-shadow: 0 0 0 1px rgba(234, 240, 250, 0.08), 0 30px 60px -20px rgba(0, 0, 0, 0.7); background: #8DB58E; }
.phone img { width: 100%; height: auto; }
.phone:nth-child(2) { transform: translateY(-36px); }
.phone:nth-child(3) { transform: translateY(24px); }
.app-icon { width: 64px; height: 64px; border-radius: 16px; box-shadow: 0 10px 30px -10px rgba(255, 154, 61, 0.6); }

/* Tarayıcı çerçevesi */
.browser { border-radius: 14px; overflow: hidden; background: var(--sky-2); box-shadow: 0 0 0 1px var(--line), 0 40px 80px -30px rgba(0, 0, 0, 0.8), 0 0 120px -40px rgba(111, 139, 255, 0.35); }
.browser-bar { display: flex; gap: 7px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.browser-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.browser img { width: 100%; height: auto; }

/* WhatsApp görseli */
.link-art { border-radius: 20px; background: radial-gradient(70% 70% at 50% 40%, var(--sky-3), var(--sky-2)); box-shadow: 0 0 0 1px var(--line); padding: clamp(20px, 4vw, 44px); }
.link-art svg { width: 100%; height: auto; }
.link-art .wire { fill: none; stroke: var(--line); stroke-width: 2; }
.link-art .glow { fill: none; stroke: var(--teal); stroke-width: 2; stroke-dasharray: 6 10; }
.link-art .box { fill: var(--sky); stroke: var(--line); stroke-width: 1.5; }
.link-art .label { fill: var(--ink); font: 600 15px var(--font); }
.link-art .sub { fill: var(--ink-2); font: 400 12px var(--font); }
.link-art .bubble { fill: var(--sky-3); }
.link-art .bubble.me { fill: rgba(47, 224, 207, 0.22); }
.link-art .core { fill: none; stroke: var(--cobalt); stroke-width: 1.5; }
.link-art .core-fill { fill: rgba(111, 139, 255, 0.12); }

/* Hakkında ve yasal bant */
.band { border-top: 1px solid var(--line); }
.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 6vw, 96px); align-items: start; }
.about p { color: var(--ink-2); max-width: 40em; }
.legal-index { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 32px; }
.legal-index a { display: grid; gap: 4px; padding-block: 20px; border-top: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.legal-index a span { color: var(--ink-2); font-size: 0.95rem; }
.legal-index a:hover strong { color: var(--teal); }

/* Metin sayfaları */
.page-head { padding-block: clamp(56px, 8vw, 104px) clamp(32px, 4vw, 48px); border-bottom: 1px solid var(--line);
  background: radial-gradient(50% 120% at 85% 0%, rgba(111, 139, 255, 0.14), transparent 70%); }
.page-head .wrap { display: grid; gap: 18px; }
.page-head h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); letter-spacing: -0.045em; max-width: 18ch; }
.crumb { font-size: 0.92rem; color: var(--ink-2); }
.crumb a { color: var(--ink-2); }
.doc { padding-block: clamp(40px, 6vw, 80px); }
.doc-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: clamp(24px, 5vw, 72px); }
.toc { position: sticky; top: 24px; align-self: start; display: grid; gap: 8px; font-size: 0.92rem; }
.toc a { color: var(--ink-2); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.prose { max-width: 68ch; display: grid; gap: 18px; }
.prose h2 { font-size: 1.55rem; letter-spacing: -0.02em; margin-top: 28px; scroll-margin-top: 24px; }
.prose ul, .prose ol { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.prose th, .prose td { text-align: left; border-bottom: 1px solid var(--line); padding: 10px 12px 10px 0; vertical-align: top; }
.prose th { font-weight: 500; color: var(--ink-2); }
.note { border-left: 2px solid var(--amber); padding: 4px 0 4px 16px; color: var(--ink-2); }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 10px 24px; margin: 0; }
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; }
.email { font-weight: 500; user-select: all; color: var(--ink); }
.code-status { font-family: var(--mono); background: var(--sky-2); padding: 2px 8px; border-radius: 4px; }
.project-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.highlights { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.highlights li { padding: 16px 0; border-bottom: 1px solid var(--line); display: grid; gap: 4px; }
.highlights li strong { font-weight: 600; }
.highlights li span { color: var(--ink-2); }
.gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: clamp(40px, 6vw, 72px); }

/* Alt bilgi */
.site-footer { border-top: 1px solid var(--line); padding-block: 56px 32px; font-size: 0.95rem; color: var(--ink-2); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 3fr) minmax(0, 3fr); gap: 32px; }
.footer-name, .footer-head { font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.footer-links a, .site-footer a { color: var(--ink-2); }
.footer-base { margin-top: 40px; font-size: 0.88rem; }

@media (max-width: 900px) {
  .show, .show.flip, .about, .project-grid, .doc-grid, .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .show.flip .show-text { order: 0; }
  .sky-hint { display: none; }
  .toc { position: static; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .phone:nth-child(2), .phone:nth-child(3) { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}

/* Dil değiştirici */
.lang-switch { border: 1px solid var(--line); border-radius: 999px; padding: 1px 10px; font-size: 0.85rem !important; font-weight: 550; }
.lang-switch:hover { border-color: var(--ink-2); }

/* yardımcılar (CSP satır içi stile izin vermediği için) */
.mb-0 { margin-bottom: 0 !important; }
.mt-lg { margin-top: clamp(40px, 6vw, 72px); }
.app-icon.big { width: 96px; height: 96px; border-radius: 24px; }
.muted { color: var(--ink-2); }
.wordmark-logo { width: 40px; height: 40px; border-radius: 50%; }