/* ==========================================================
   Teti Tech — Kurumsal Site
   ========================================================== */
:root {
  --primary: #1f6fe5;
  --primary-600: color-mix(in srgb, var(--primary) 82%, #000);
  --primary-50: color-mix(in srgb, var(--primary) 8%, #fff);
  --primary-100: color-mix(in srgb, var(--primary) 16%, #fff);
  --accent: #22d3ee;
  --ink: #0b1324;
  --text: #3b4658;
  --muted: #6b778a;
  --bg: #ffffff;
  --tint: #f4f7fc;
  --line: #e4e9f2;
  --dark: #070d1c;
  --dark-2: #0e1730;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(11, 19, 36, .04), 0 8px 24px -8px rgba(11, 19, 36, .10);
  --shadow-lg: 0 24px 60px -20px rgba(11, 19, 36, .28);
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) - 4px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0; letter-spacing: -.02em; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }
[hidden] { display: none !important; }
::selection { background: var(--primary); color: #fff; }

.container { width: min(1200px, 100% - 40px); margin-inline: auto; }

/* ---------- Loader ---------- */
.page-loader {
  position: fixed; inset: 0; z-index: 999; background: var(--dark);
  display: grid; place-items: center; transition: opacity .45s ease, visibility .45s;
}
.page-loader span {
  width: 42px; height: 42px; border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, .12); border-top-color: var(--primary);
  animation: spin .8s linear infinite;
}
body:not(.is-loading) .page-loader { opacity: 0; visibility: hidden; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 22px; border-radius: 12px; border: 1px solid transparent;
  font-weight: 600; font-size: 15px; line-height: 1.2; white-space: nowrap;
  transition: transform .2s var(--ease), background .2s, box-shadow .2s, color .2s, border-color .2s;
}
.btn--sm { padding: 10px 16px; font-size: 14px; border-radius: 10px; }
.btn--lg { padding: 15px 26px; font-size: 16px; }
.btn--block { width: 100%; }
.btn--primary { background: var(--primary); color: #fff; box-shadow: 0 10px 24px -10px color-mix(in srgb, var(--primary) 80%, transparent); }
.btn--primary:hover { background: var(--primary-600); transform: translateY(-2px); }
.btn--ghost { color: #fff; border-color: rgba(255, 255, 255, .22); background: rgba(255, 255, 255, .04); }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .4); }
.btn:disabled { opacity: .65; pointer-events: none; }
.btn__icon svg { width: 18px; height: 18px; display: block; transition: transform .2s; }
.btn:hover .btn__icon svg { transform: translateX(3px); }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 100; height: var(--header-h);
  color: #fff; transition: background .3s, box-shadow .3s, color .3s, height .3s;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, .88); color: var(--ink);
  backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--line); --header-h: 68px;
}
.header__inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; font-size: 20px; letter-spacing: -.03em; }
.brand__mark {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  display: grid; place-items: center; color: #fff; font-size: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 18px -8px var(--primary);
}
.brand__mark--img { background: none; box-shadow: none; width: auto; min-width: 38px; max-width: 150px; }
.brand__mark--img img { height: 38px; width: auto; object-fit: contain; }
.brand--logo-only .brand__name { display: none; }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  padding: 8px 13px; border-radius: 9px; font-size: 15px; font-weight: 500;
  opacity: .82; transition: opacity .2s, background .2s;
}
.nav a:hover, .nav a.is-active { opacity: 1; background: rgba(127, 140, 170, .14); }
.header__actions { display: flex; align-items: center; gap: 10px; }

.lang { position: relative; }
.lang__btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 11px; border-radius: 10px;
  background: transparent; color: inherit; border: 1px solid rgba(127, 140, 170, .35);
  font-size: 14px; font-weight: 600;
}
.lang__btn svg { width: 17px; height: 17px; }
.lang__menu {
  position: absolute; right: 0; top: calc(100% + 8px); list-style: none; margin: 0; padding: 6px;
  min-width: 170px; background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg);
  border: 1px solid var(--line); opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: .2s var(--ease);
}
.lang.is-open .lang__menu { opacity: 1; visibility: visible; transform: none; }
.lang__menu a {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 9px 10px; border: 0;
  background: none; border-radius: 9px; color: var(--ink); font-size: 14px; text-align: left;
}
.lang__menu a span {
  font-size: 11px; font-weight: 700; padding: 3px 6px; border-radius: 6px; background: var(--tint); color: var(--muted);
}
.lang__menu a:hover { background: var(--tint); }
.lang__menu a.is-active { color: var(--primary); font-weight: 600; }
.lang__menu a.is-active span { background: var(--primary); color: #fff; }

.burger { display: none; width: 42px; height: 42px; border: 0; border-radius: 10px; background: transparent; color: inherit; position: relative; }
.burger span { position: absolute; left: 11px; right: 11px; height: 2px; background: currentColor; border-radius: 2px; transition: .25s var(--ease); }
.burger span:nth-child(1) { top: 14px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 26px; }
.nav-open .burger span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-open .burger span:nth-child(2) { opacity: 0; }
.nav-open .burger span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; background: var(--dark); color: #c9d3e6;
  padding: calc(var(--header-h) + 72px) 0 110px; min-height: min(100vh, 900px); display: flex; align-items: center;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .55; }
.hero__glow--1 { width: 560px; height: 560px; background: var(--primary); top: -200px; right: -120px; animation: float 14s ease-in-out infinite; }
.hero__glow--2 { width: 420px; height: 420px; background: #7c3aed; bottom: -220px; left: -120px; opacity: .35; animation: float 18s ease-in-out infinite reverse; }
@keyframes float { 50% { transform: translate(-40px, 30px); } }

.hero__inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 9px; padding: 7px 14px 7px 10px; border-radius: 999px;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  font-size: 13.5px; font-weight: 600; color: #dbe4f5;
}
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52, 211, 153, .18); }
.hero__title { color: #fff; font-size: clamp(38px, 5.4vw, 64px); font-weight: 800; letter-spacing: -.035em; margin: 22px 0 20px; line-height: 1.08; }
.hero__title > span { display: block; }
.gradient-text {
  background: linear-gradient(90deg, color-mix(in srgb, var(--primary) 60%, #fff), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__subtitle { font-size: clamp(16px, 1.5vw, 18.5px); max-width: 560px; color: #aab6cc; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero__stack { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 44px; }
.hero__stack span {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1);
}
.hero__stack img { width: 24px; height: 24px; object-fit: contain; }

.hero__visual { position: relative; }
.window {
  border-radius: 18px; overflow: hidden; background: rgba(14, 23, 48, .82);
  border: 1px solid rgba(255, 255, 255, .1); box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7);
  backdrop-filter: blur(10px); transform: perspective(1400px) rotateY(-8deg) rotateX(3deg);
}
.window__bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.window__bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.window__bar i:nth-child(2) { background: #febc2e; }
.window__bar i:nth-child(3) { background: #28c840; }
.window__bar span { margin-left: 10px; font-size: 12.5px; color: #7a88a3; font-family: ui-monospace, Menlo, monospace; }
.window__code {
  margin: 0; padding: 22px 24px 26px; font: 13.5px/1.75 ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color: #d6def0; overflow-x: auto;
}
.c-k { color: #c792ea; } .c-s { color: #a5e39a; } .c-f { color: #82aaff; } .c-b { color: #f78c6c; } .c-c { color: #6b7a99; }
.float-card {
  position: absolute; display: flex; align-items: center; gap: 12px; padding: 12px 16px 12px 12px;
  background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg); color: var(--ink);
  animation: bob 6s ease-in-out infinite;
}
.float-card b { display: block; font-size: 15px; line-height: 1.2; }
.float-card small { color: var(--muted); font-size: 12.5px; }
.float-card__icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: #dcfce7; color: #16a34a; }
.float-card__icon--alt { background: var(--primary-100); color: var(--primary); }
.float-card__icon svg { width: 20px; height: 20px; }
.float-card--a { left: -34px; bottom: -26px; }
.float-card--b { right: -18px; top: -28px; animation-delay: -3s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

/* ---------- Sections ---------- */
.section { padding: 110px 0; position: relative; }
.section--tint { background: var(--tint); }
.section--dark { background: var(--dark); color: #aab6cc; }
.section--dark .section-title { color: #fff; }
.section--dark .section-sub { color: #93a0b8; }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--primary); margin-bottom: 14px;
}
.eyebrow::before { content: ''; width: 18px; height: 2px; border-radius: 2px; background: currentColor; }
.eyebrow--light { color: color-mix(in srgb, var(--primary) 50%, #fff); }
.section-title { font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; letter-spacing: -.03em; }
.section-sub { margin-top: 16px; font-size: 17px; color: var(--muted); }

/* reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0ms); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: center; }
.about .section-title { margin-bottom: 22px; }
.prose p + p { margin-top: 16px; }
.prose { font-size: 16.5px; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat {
  padding: 28px 24px; border-radius: var(--radius); background: var(--tint); border: 1px solid var(--line);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.stat:nth-child(2), .stat:nth-child(3) { background: #fff; box-shadow: var(--shadow); }
.stat:hover { transform: translateY(-4px); }
.stat strong {
  display: block; font-size: clamp(32px, 3.4vw, 44px); font-weight: 800; letter-spacing: -.04em; line-height: 1.1;
  background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { font-size: 14.5px; font-weight: 600; color: var(--muted); }

/* ---------- Vision & Mission ---------- */
.vm { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.vm__card {
  padding: 44px 40px; border-radius: 24px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.vm__card h3 { font-size: 26px; margin: 22px 0 12px; }
.vm__card p { font-size: 16.5px; }
.vm__card--dark { background: linear-gradient(145deg, var(--dark-2), var(--dark)); border-color: transparent; color: #aab6cc; }
.vm__card--dark h3 { color: #fff; }
.vm__card--dark::after {
  content: ''; position: absolute; width: 260px; height: 260px; right: -80px; top: -80px; border-radius: 50%;
  background: var(--primary); filter: blur(80px); opacity: .45;
}
.vm__icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: var(--primary-100); color: var(--primary); position: relative; z-index: 1; }
.vm__card--dark .vm__icon { background: rgba(255, 255, 255, .08); color: #fff; }
.vm__icon svg { width: 28px; height: 28px; }
.vm__card > * { position: relative; z-index: 1; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.value { display: flex; gap: 14px; padding: 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.value__icon { flex: none; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: #fff; }
.value__icon svg { width: 17px; height: 17px; }
.value h4 { font-size: 16.5px; margin-bottom: 4px; }
.value p { font-size: 14.5px; color: var(--muted); }

/* ---------- Services ---------- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service {
  padding: 32px 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .35s, opacity .7s var(--ease);
  position: relative; overflow: hidden;
}
.service::before {
  content: ''; position: absolute; inset: 0 0 auto; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent)); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.service:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service:hover::before { transform: scaleX(1); }
.service__icon {
  width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center;
  background: var(--primary-50); color: var(--primary); margin-bottom: 22px; transition: .35s var(--ease);
}
.service:hover .service__icon { background: var(--primary); color: #fff; }
.service__icon svg { width: 26px; height: 26px; }
.service h3 { font-size: 19px; margin-bottom: 10px; }
.service p { font-size: 15px; color: var(--muted); }

/* ---------- Tech ---------- */
.section--dark::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 300px at 15% 0%, color-mix(in srgb, var(--primary) 30%, transparent), transparent 70%);
}
.tech { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; }
.tech__item {
  display: flex; align-items: center; gap: 16px; padding: 20px; border-radius: var(--radius);
  background: rgba(255, 255, 255, .035); border: 1px solid rgba(255, 255, 255, .08);
  transition: background .3s, border-color .3s, transform .35s var(--ease), opacity .7s var(--ease);
}
.tech__item:hover { background: rgba(255, 255, 255, .07); border-color: color-mix(in srgb, var(--primary) 60%, transparent); transform: translateY(-4px); }
.tech__logo {
  flex: none; width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: #fff; font-weight: 800; color: var(--ink); font-size: 20px;
}
.tech__logo img { width: 32px; height: 32px; object-fit: contain; }
.tech__item strong { display: block; color: #fff; font-size: 16.5px; }
.tech__item small { font-size: 13.5px; color: #8a97b0; }

/* ---------- Projects ---------- */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: -24px 0 36px; }
.chip {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
  font-size: 14px; font-weight: 600; color: var(--text); transition: .2s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.project {
  border-radius: 20px; overflow: hidden; background: #fff; border: 1px solid var(--line);
  display: flex; flex-direction: column; transition: transform .35s var(--ease), box-shadow .35s, opacity .7s var(--ease);
}
.project:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project__media { position: relative; aspect-ratio: 16 / 10; background: var(--tint); overflow: hidden; }
.project__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.project:hover .project__media img { transform: scale(1.05); }
.project__media--empty {
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 40%, #7c3aed));
}
.project__media--empty span { font-size: 64px; font-weight: 800; color: rgba(255, 255, 255, .9); }
.project__cat {
  position: absolute; left: 14px; top: 14px; padding: 5px 11px; border-radius: 999px;
  background: rgba(255, 255, 255, .92); color: var(--ink); font-size: 12.5px; font-weight: 700;
  backdrop-filter: blur(6px);
}
.project__body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project__body h3 { font-size: 20px; }
.project__body p { font-size: 15px; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tags span { padding: 4px 10px; border-radius: 7px; background: var(--primary-50); color: var(--primary-600); font-size: 12.5px; font-weight: 600; }
.project__link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 14.5px; color: var(--primary); }
.project__link svg { width: 16px; height: 16px; }
.project__link:hover { text-decoration: underline; }
.empty { grid-column: 1 / -1; text-align: center; color: var(--muted); }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.contact .section-title { margin-bottom: 0; }
.info-list { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 14px; }
.info-list li { display: flex; align-items: center; gap: 16px; }
.info-list__icon {
  flex: none; width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: #fff; color: var(--primary); box-shadow: var(--shadow);
}
.info-list__icon svg { width: 22px; height: 22px; }
.info-list small { display: block; font-size: 13px; color: var(--muted); font-weight: 600; }
.info-list a, .info-list span { color: var(--ink); font-weight: 600; word-break: break-word; }
.info-list a:hover { color: var(--primary); }
.socials { display: flex; gap: 10px; margin-top: 28px; }
.socials a {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: #fff; border: 1px solid var(--line); color: var(--ink); transition: .2s;
}
.socials a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.socials svg { width: 19px; height: 19px; }
.socials--light a { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .1); color: #fff; }

.form {
  padding: 40px; border-radius: 24px; background: #fff; box-shadow: var(--shadow-lg);
  border: 1px solid var(--line); display: grid; gap: 18px;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field span { font-size: 14px; font-weight: 600; color: var(--ink); }
.field input, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 12px; border: 1px solid var(--line); background: var(--tint);
  font: inherit; font-size: 15px; color: var(--ink); transition: border-color .2s, box-shadow .2s, background .2s; resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px var(--primary-100);
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form__status { font-size: 14.5px; font-weight: 600; min-height: 1em; }
.form__status:empty { display: none; }
.form__status.is-success { color: #15803d; }
.form__status.is-error { color: #dc2626; }

/* ---------- Footer ---------- */
.footer { background: var(--dark); color: #93a0b8; padding: 76px 0 0; }
.footer__inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 56px; }
.brand--light { color: #fff; }
.footer__brand p { margin-top: 16px; max-width: 360px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer__links { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 15px; }
.footer__links a:hover { color: #fff; }
.footer__bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 24px 0 28px; font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 72px; }
  .hero__visual { max-width: 560px; margin-inline: auto; width: 100%; }
  .window { transform: none; }
  .services, .projects { grid-template-columns: repeat(2, 1fr); }
  .tech { grid-template-columns: repeat(2, 1fr); }
  .about, .contact { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 900px) {
  .burger { display: block; }
  .header__cta { display: none; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto; margin: 0; flex-direction: column; gap: 2px;
    padding: 12px 20px 24px; background: #fff; color: var(--ink); box-shadow: var(--shadow-lg);
    transform: translateY(-12px); opacity: 0; visibility: hidden; transition: .25s var(--ease);
  }
  .nav a { padding: 13px 12px; font-size: 16px; }
  .nav-open .nav { transform: none; opacity: 1; visibility: visible; }
  .nav-open .header { background: #fff; color: var(--ink); box-shadow: 0 1px 0 var(--line); }
  .header__actions { margin-left: auto; }
  .vm, .values { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
  .section { padding: 80px 0; }
  .hero { padding: calc(var(--header-h) + 48px) 0 90px; }
  .services, .projects, .tech { grid-template-columns: 1fr; }
  .form { padding: 26px 20px; }
  .form__row { grid-template-columns: 1fr; }
  .vm__card { padding: 32px 26px; }
  .float-card--a { left: 8px; bottom: -30px; }
  .float-card--b { right: 8px; }
  .window__code { font-size: 12px; padding: 18px; }
  .brand__name { font-size: 18px; }
  .footer__inner { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}