/*
  Tasarım sistemi
  - Tipografi: Geist (metin ve başlık), Geist Mono (etiket ve meta)
  - Renk: soğuk nötr zemin + tek vurgu (vermilyon). Açık ve koyu tema.
  - Köşe kuralı: butonlar tam yuvarlak (pill), görsel ve paneller 14px, form alanları 10px.
  - Hareket: yalnızca transform ve opacity. prefers-reduced-motion'da kapanır.
*/
:root {
  --bg: #f3f4f1;
  --bg-alt: #eaece7;
  --surface: #fbfbf9;
  --ink: #131614;
  --ink-2: #2b302d;
  --muted: #5a605c;
  --line: #d6d9d3;
  --accent: #c4401a;
  --accent-ink: #ffffff;
  --accent-soft: rgba(196, 64, 26, 0.09);
  --shadow: 0 1px 2px rgba(19, 22, 20, 0.05), 0 18px 40px -18px rgba(19, 22, 20, 0.22);
  --wa: #1f8a4c;

  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --r-media: 14px;
  --r-field: 10px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 68px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1110; --bg-alt: #141715; --surface: #181b19; --ink: #eceeea; --ink-2: #d2d6d1;
    --muted: #9aa19c; --line: #2a2f2c; --accent: #ff6b3d; --accent-ink: #1a0a04;
    --accent-soft: rgba(255, 107, 61, 0.1); --shadow: 0 1px 2px rgba(0,0,0,.3), 0 24px 50px -20px rgba(0,0,0,.6);
    --wa: #3ccf7a; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1110; --bg-alt: #141715; --surface: #181b19; --ink: #eceeea; --ink-2: #d2d6d1;
  --muted: #9aa19c; --line: #2a2f2c; --accent: #ff6b3d; --accent-ink: #1a0a04;
  --accent-soft: rgba(255, 107, 61, 0.1); --shadow: 0 1px 2px rgba(0,0,0,.3), 0 24px 50px -20px rgba(0,0,0,.6);
  --wa: #3ccf7a; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font);
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } body { font-size: 16px; } }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 999px; }
.skip:focus { left: 12px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap;
  height: 48px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent;
  font: 500 15px/1 var(--font); text-decoration: none; cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s, border-color .2s, color .2s;
}
.btn:active { transform: scale(0.98); }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14px; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn .ph { font-size: 18px; }

.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 999px;
  background: transparent; border: 1px solid var(--line); color: var(--ink); cursor: pointer; font-size: 18px;
  transition: border-color .2s, transform .2s var(--ease);
}
.icon-btn:hover { border-color: var(--ink); }
.icon-btn:active { transform: scale(0.96); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -0.01em; }
/* Logo: monolit blok + turuncu imleç.
   Fareyle üzerine gelince blok yükselir (uzar), eğimli yüzeyden ışık geçer, imleç yanıp söner. */
.brand-mark { width: 30px; height: 30px; flex: none; display: block; overflow: visible; }
.bm-slab {
  fill: var(--ink); transform-box: fill-box; transform-origin: 50% 100%;
  transition: transform 320ms cubic-bezier(0.23, 1, 0.32, 1);
}
.bm-shine { fill: var(--bg); opacity: .55; transform: translateX(-12px); }
.bm-cursor {
  fill: var(--accent); transform-box: fill-box; transform-origin: 0 50%;
  transition: transform 320ms cubic-bezier(0.23, 1, 0.32, 1);
}
.brand-labs { font-weight: 400; color: var(--muted); }
.brand:active .brand-mark { transform: scale(.94); transition: transform 120ms ease-out; }
@media (hover: hover) and (pointer: fine) {
  .brand:hover .bm-slab { transform: translateY(-1.5px) scaleY(1.07); }
  .brand:hover .bm-cursor { transform: translateY(-1.5px); animation: bm-blink 1s steps(1) 250ms infinite; }
  .brand:hover .bm-shine { animation: bm-shine 750ms cubic-bezier(0.77, 0, 0.175, 1) forwards; }
}
.brand:focus-visible .bm-shine { animation: bm-shine 750ms cubic-bezier(0.77, 0, 0.175, 1) forwards; }
@keyframes bm-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
@keyframes bm-shine { from { transform: translateX(-12px); } to { transform: translateX(34px); } }
@media (prefers-reduced-motion: reduce) {
  .brand:hover .bm-slab, .brand:hover .bm-cursor { transform: none; }
  .brand:hover .bm-cursor, .brand:hover .bm-shine, .brand:focus-visible .bm-shine { animation: none; }
}
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { padding: 8px 12px; border-radius: 999px; text-decoration: none; font-size: 15px; color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: var(--ink); }
.nav-tools { display: flex; align-items: center; gap: 8px; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang button {
  border: 0; background: transparent; color: var(--muted); font: 500 12px/1 var(--mono);
  padding: 8px 10px; border-radius: 999px; cursor: pointer; transition: background-color .2s, color .2s;
}
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.menu-btn { display: none; }
.mobile-menu { border-bottom: 1px solid var(--line); background: var(--bg); padding: 8px 16px 20px; display: grid; gap: 4px; }
.mobile-menu a:not(.btn) { padding: 12px 4px; text-decoration: none; font-size: 18px; border-bottom: 1px solid var(--line); }
.mobile-menu .btn { margin-top: 12px; }
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-tools { margin-left: auto; }
  .menu-btn { display: inline-grid; }
}

/* ---------- hero ---------- */
.hero { padding: 48px 0 80px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; min-height: min(calc(100dvh - var(--nav-h) - 160px), 600px); }
.hero-copy { position: relative; z-index: 1; }
.hero-title { font-size: clamp(40px, 5.4vw, 68px); line-height: 1.02; letter-spacing: -0.04em; max-width: 12ch; }
.hero-sub { margin-top: 24px; font-size: 19px; color: var(--muted); max-width: 44ch; }
.hero-ctas { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-visual { position: relative; padding-bottom: 14%; }
.shot { margin: 0; border-radius: var(--r-media); overflow: hidden; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.shot img { width: 100%; }
.shot-main { width: 94%; transform: rotate(0.6deg); }
.shot-side { position: absolute; width: 48%; right: 0; bottom: 0; transform: rotate(-1.5deg); }
.shot-side img { aspect-ratio: 16 / 10; object-fit: cover; object-position: 60% 50%; }
@media (max-width: 900px) {
  .hero { padding: 40px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; min-height: 0; }
  .hero-title { max-width: 16ch; }
  .shot-side { right: -2%; width: 50%; }
}

/* ---------- sectors ---------- */
.sectors { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sectors-inner { display: flex; align-items: center; gap: 32px; padding-top: 22px; padding-bottom: 22px; }
.sectors-label { font: 400 13px/1.4 var(--mono); color: var(--muted); max-width: 24ch; flex: none; }
.sector-list { display: flex; flex-wrap: wrap; gap: 8px 28px; }
.sector-list li { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; color: var(--ink-2); }
.sector-list .ph { font-size: 20px; color: var(--accent); }
@media (max-width: 900px) { .sectors-inner { flex-direction: column; align-items: flex-start; gap: 14px; } .sectors-label { max-width: none; } }

/* ---------- sections ---------- */
.section { padding: 112px 0; }
.section-alt { background: var(--bg-alt); }
.h2 { font-size: clamp(30px, 3.6vw, 46px); line-height: 1.08; max-width: 20ch; }
.lead { margin-top: 18px; font-size: 18px; color: var(--muted); max-width: 56ch; }
.eyebrow { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
@media (max-width: 640px) { .section { padding: 80px 0; } }

/* ---------- work ---------- */
#featured { margin-top: 56px; }
.feature {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 48px; align-items: center;
  padding: 20px; border: 1px solid var(--line); border-radius: calc(var(--r-media) + 6px); background: var(--surface);
}
.media { display: block; border-radius: var(--r-media); overflow: hidden; border: 1px solid var(--line); background: var(--bg-alt); }
.media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; transition: transform .8s var(--ease); }
a.media:hover img { transform: scale(1.025); }
.feature-copy { padding: 8px 12px 8px 0; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 10px; font: 400 13px/1.4 var(--mono); color: var(--muted); }
.meta .status { color: var(--accent); }
.feature h3 { margin-top: 14px; font-size: clamp(28px, 3vw, 38px); line-height: 1.1; }
.proj-summary { margin-top: 14px; color: var(--muted); }
.points { margin-top: 22px; display: grid; gap: 10px; }
.points li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; font-size: 15.5px; color: var(--ink-2); }
.points .ph { color: var(--accent); font-size: 18px; margin-top: 3px; }
.proj-links { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
@media (max-width: 900px) {
  .feature { grid-template-columns: 1fr; gap: 24px; padding: 12px; }
  .feature-copy { padding: 4px 8px 12px; }
}

.work-grid { margin-top: 24px; display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.card { grid-column: span 6; display: flex; flex-direction: column; }
.card.wide { grid-column: span 7; }
.card .media img { aspect-ratio: 16 / 10; object-position: 60% 50%; }
.card-body { padding: 22px 4px 0; }
.card h3 { margin-top: 10px; font-size: 24px; line-height: 1.2; }
.card .proj-summary { font-size: 16px; }
.card .proj-links { margin-top: 18px; }
.next {
  grid-column: span 5; border-radius: var(--r-media); padding: 36px 32px;
  background: var(--accent-soft); border: 1px dashed color-mix(in srgb, var(--accent) 45%, transparent);
  display: flex; flex-direction: column; justify-content: space-between; gap: 28px;
}
.next .ph-plus-circle { font-size: 36px; color: var(--accent); }
.next h3 { font-size: 26px; line-height: 1.15; margin-top: 18px; }
.next p { margin-top: 12px; color: var(--muted); font-size: 16px; }
.work-grid.solo .next { grid-column: 1 / -1; }
@media (max-width: 900px) { .card, .card.wide, .next { grid-column: 1 / -1; } }

/* ---------- services ---------- */
.services { margin-top: 48px; border-top: 1px solid var(--line); }
.svc { border-bottom: 1px solid var(--line); }
.svc-head {
  width: 100%; display: grid; grid-template-columns: 44px 1fr 32px; align-items: center; gap: 16px;
  padding: 28px 0; background: none; border: 0; color: var(--ink); text-align: left; cursor: pointer; font: inherit;
}
.svc-icon { font-size: 28px; color: var(--muted); transition: color .3s; }
.svc-title { font-size: clamp(22px, 2.6vw, 32px); font-weight: 500; letter-spacing: -0.02em; line-height: 1.2; }
.svc-toggle { font-size: 22px; justify-self: end; transition: transform .4s var(--ease); }
.svc-head[aria-expanded="true"] .svc-toggle { transform: rotate(45deg); }
.svc-head[aria-expanded="true"] .svc-icon, .svc-head:hover .svc-icon { color: var(--accent); }
.svc-body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .45s var(--ease); }
.svc-body > div { overflow: hidden; padding-left: 60px; }
.svc-head[aria-expanded="true"] + .svc-body { grid-template-rows: 1fr; }
.svc-body p { max-width: 62ch; color: var(--muted); }
.svc-body > div > :last-child { margin-bottom: 30px; }
.tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font: 400 13px/1 var(--mono); padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); }
.svc-link { margin-top: 18px; display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 500; text-decoration: none; color: var(--accent); }
.svc-link:hover { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 640px) {
  .svc-head { grid-template-columns: 32px 1fr 24px; gap: 12px; padding: 22px 0; }
  .svc-icon { font-size: 24px; }
  .svc-body > div { padding-left: 0; }
}

/* ---------- process ---------- */
.steps { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; }
.step { position: relative; padding: 0 28px 0 0; }
.step::before {
  content: ""; display: block; height: 1px; background: var(--line); margin-bottom: 28px;
}
.step::after {
  content: ""; position: absolute; top: -3px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
.step-icon { font-size: 30px; color: var(--ink); }
.step h3 { margin-top: 18px; font-size: 20px; line-height: 1.25; }
.step p { margin-top: 10px; font-size: 15.5px; color: var(--muted); }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr 1fr; row-gap: 48px; }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; row-gap: 40px; }
  .step { padding-right: 0; }
}

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 72px; align-items: start; }
.portrait {
  position: sticky; top: calc(var(--nav-h) + 32px); margin: 0; aspect-ratio: 4 / 5; border-radius: var(--r-media); overflow: hidden;
  background: var(--ink); display: grid; place-items: center;
}
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
.portrait-fallback { font-size: clamp(80px, 12vw, 160px); font-weight: 600; letter-spacing: -0.04em; color: var(--accent); }
.about-copy .h2 { max-width: 18ch; }
.about-copy > p:not(.eyebrow) { margin-top: 22px; color: var(--ink-2); max-width: 60ch; }
.facts { margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-top: 28px; border-top: 1px solid var(--line); }
.facts dt { font: 400 12px/1.4 var(--mono); color: var(--muted); }
.facts dd { margin: 8px 0 0; font-weight: 500; line-height: 1.35; }
.quote { margin: 44px 0 0; padding-left: 22px; border-left: 2px solid var(--accent); }
.quote p { font-size: 20px; line-height: 1.45; letter-spacing: -0.01em; color: var(--ink); max-width: 46ch; }
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .portrait { position: relative; top: 0; max-width: 360px; }
  .facts { grid-template-columns: 1fr; gap: 18px; }
}

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.channels { margin-top: 36px; display: grid; gap: 10px; max-width: 420px; }
.channel {
  display: flex; align-items: center; gap: 16px; padding: 16px 18px; border-radius: var(--r-media);
  border: 1px solid var(--line); text-decoration: none; transition: border-color .2s, transform .2s var(--ease);
}
.channel:hover { border-color: var(--ink); transform: translateX(3px); }
.channel .ph { font-size: 26px; color: var(--muted); }
.channel-wa .ph { color: var(--wa); }
.channel strong { display: block; font-weight: 500; }
.channel small { display: block; font: 400 14px/1.4 var(--mono); color: var(--muted); }
.form { padding: 32px; border-radius: calc(var(--r-media) + 6px); background: var(--surface); border: 1px solid var(--line); display: grid; gap: 20px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--r-field); padding: 12px 14px; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field.invalid input, .field.invalid textarea { border-color: var(--accent); }
.help { font-size: 13.5px; color: var(--muted); }
.err { font-size: 13.5px; color: var(--accent); font-weight: 500; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form { padding: 22px; }
}

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0 36px; font-size: 14px; color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--ink); }

/* ---------- motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .load { opacity: 0; transform: translateY(18px); animation: rise .9s var(--ease) forwards; animation-delay: calc(var(--i, 0) * 110ms + 80ms); }
  .hero-visual.load { transform: translateY(28px); animation-duration: 1.2s; }
  @keyframes rise { to { opacity: 1; transform: none; } }

  .js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--i, 0) * 90ms); }
  .js .reveal.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
}