/* ============================================================
   BirArtıBir Technologies LLP — görsel sistem v2
   Tek tema: koyu, sinematik. Fontlar vendor'lu, CDN yok.
   ============================================================ */

/* ---------- Fontlar ---------- */
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-500-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-700-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-ext-500-normal.woff2") format("woff2");
  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;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-ext-600-normal.woff2") format("woff2");
  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;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-latin-ext-700-normal.woff2") format("woff2");
  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;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-500-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-600-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-700-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-ext-500-normal.woff2") format("woff2");
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-ext-600-normal.woff2") format("woff2");
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../vendor/fonts/unbounded-cyrillic-ext-700-normal.woff2") format("woff2");
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
  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;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-cyrillic-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-cyrillic-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

/* ---------- Değişkenler ---------- */
:root {
  color-scheme: dark;
  --bg-0: #030610;
  --bg-1: #050b1a;
  --bg-2: #0a1226;
  --ink: #eef4ff;
  --ink-soft: #b9c6e2;
  --ink-dim: #8493ba;
  --blue: #2f6bff;
  --blue-soft: #6f9bff;
  --cyan: #49d8ff;
  --gold: #f2c763;
  --line: rgba(148, 170, 220, 0.14);
  --line-strong: rgba(148, 170, 220, 0.24);
  --glass: rgba(11, 19, 40, 0.78);
  --glass-solid: rgba(12, 21, 42, 0.82);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font-display: "Unbounded", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --header-h: 72px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

h1, h2, h3, .eyebrow, .stage-number, .card-index {
  font-family: var(--font-display);
}

h2 {
  color: var(--ink);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

h3 { color: var(--ink); font-weight: 600; }

::selection { background: rgba(47, 107, 255, 0.45); color: #fff; }

/* ---------- Arka plan katmanları ---------- */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1100px 700px at 85% -10%, rgba(47, 107, 255, 0.16), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(73, 216, 255, 0.07), transparent 55%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 60%, var(--bg-0) 100%);
  overflow: hidden;
}

.bg-aurora {
  position: absolute;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  will-change: transform;
}
.bg-aurora-a {
  top: -25vw;
  right: -18vw;
  background: radial-gradient(circle at 40% 40%, rgba(47, 107, 255, 0.5), rgba(47, 107, 255, 0) 65%);
  animation: aurora-a 26s ease-in-out infinite alternate;
}
.bg-aurora-b {
  bottom: -30vw;
  left: -20vw;
  background: radial-gradient(circle at 55% 45%, rgba(73, 216, 255, 0.32), rgba(73, 216, 255, 0) 65%);
  animation: aurora-b 32s ease-in-out infinite alternate;
}
@keyframes aurora-a {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-6vw, 8vh, 0) scale(1.15); }
}
@keyframes aurora-b {
  from { transform: translate3d(0, 0, 0) scale(1.05); }
  to   { transform: translate3d(7vw, -6vh, 0) scale(0.95); }
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 170, 220, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 170, 220, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 75%);
}

.bg-noise {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.035 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Konteyner ---------- */
.container {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  transition: background 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(5, 10, 24, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.nav-shell {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand-logo { height: 40px; width: auto; }
.logo-on-light { display: none; }
[data-theme="light"] .logo-on-dark { display: none; }
[data-theme="light"] .logo-on-light { display: block; }

/* Açık temada header, koyu hero üzerinde şeffafken açık renk diliyle kalır;
   scroll ile açık cam zemine geçince koyu (navy) dile döner. */
[data-theme="light"] .site-header:not(.scrolled) {
  --ink: #eef4ff;
  --ink-soft: #b9c6e2;
  --ink-dim: #a8b6d8;
  --line: rgba(148, 170, 220, 0.14);
  --line-strong: rgba(148, 170, 220, 0.3);
}
[data-theme="light"] .site-header:not(.scrolled) .logo-on-light { display: none; }
[data-theme="light"] .site-header:not(.scrolled) .logo-on-dark { display: block; }

.nav-links {
  display: flex;
  gap: 26px;
  margin-inline: auto;
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-dim);
  letter-spacing: 0.01em;
  transition: color 0.25s ease;
  position: relative;
  padding: 6px 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  transition: right 0.3s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }
.nav-links a.active { color: var(--ink); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.language-switcher { position: relative; }
.language-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  transition: border-color 0.25s ease, color 0.25s ease;
}
.language-trigger:hover { border-color: var(--blue-soft); color: var(--ink); }
.language-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: none;
  flex-direction: column;
  min-width: 64px;
  padding: 6px;
  background: var(--glass-solid);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 18px 40px rgba(2, 6, 18, 0.6);
}
.language-switcher.open .language-menu { display: flex; }
.language-menu button {
  padding: 8px 12px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  text-align: center;
  transition: background 0.2s ease, color 0.2s ease;
}
.language-menu button:hover { background: rgba(47, 107, 255, 0.16); color: var(--ink); }
.language-menu button.active { color: var(--cyan); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(120deg, var(--blue), #1e4fd6);
  box-shadow: 0 0 0 1px rgba(111, 155, 255, 0.35) inset, 0 8px 24px rgba(47, 107, 255, 0.35);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(111, 155, 255, 0.5) inset, 0 12px 30px rgba(47, 107, 255, 0.5); }

.menu-toggle {
  display: none;
  width: 42px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  position: relative;
}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink-soft);
  transition: transform 0.3s var(--ease-out), opacity 0.2s ease, top 0.3s var(--ease-out);
}
.menu-toggle span { top: 18px; }
.menu-toggle span::before { left: 0; right: 0; top: -6px; }
.menu-toggle span::after { left: 0; right: 0; top: 6px; }
body.menu-open .menu-toggle span { background: transparent; }
body.menu-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
body.menu-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Butonlar ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }

.button-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--blue) 0%, #1e4fd6 100%);
  box-shadow: 0 0 0 1px rgba(111, 155, 255, 0.35) inset, 0 10px 30px rgba(47, 107, 255, 0.4);
}
.button-primary:hover { box-shadow: 0 0 0 1px rgba(111, 155, 255, 0.55) inset, 0 16px 40px rgba(47, 107, 255, 0.55); }

.button-glass {
  color: var(--ink);
  background: rgba(15, 26, 52, 0.5);
  border: 1px solid var(--line-strong);
}
.button-bidup:hover { border-color: rgba(242, 199, 99, 0.65); box-shadow: 0 10px 30px rgba(242, 199, 99, 0.18); }
.button-sk:hover { border-color: rgba(73, 216, 255, 0.65); box-shadow: 0 10px 30px rgba(73, 216, 255, 0.18); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-scene canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hero-scene-fallback {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  background:
    radial-gradient(420px 420px at 68% 44%, rgba(47, 107, 255, 0.32), transparent 70%),
    radial-gradient(260px 260px at 52% 38%, rgba(73, 216, 255, 0.2), transparent 70%),
    radial-gradient(300px 300px at 82% 60%, rgba(242, 199, 99, 0.16), transparent 70%);
}
.hero-scene.no-webgl .hero-scene-fallback { opacity: 1; }

.hero-vignette {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(3, 6, 16, 0.55) 0%, rgba(3, 6, 16, 0) 22%),
    linear-gradient(0deg, var(--bg-0) 0%, rgba(3, 6, 16, 0) 26%),
    radial-gradient(120% 90% at 30% 55%, rgba(3, 6, 16, 0.5) 0%, rgba(3, 6, 16, 0) 55%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin-top: clamp(24px, 6vh, 80px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}

.hero-title {
  margin-top: 20px;
  font-size: clamp(2rem, 5vw, 3.7rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--ink);
  background: linear-gradient(105deg, #ffffff 0%, #dbe7ff 55%, #8fb6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-wrap: balance;
}

.hero-subtitle {
  margin-top: 22px;
  max-width: 60ch;
  font-size: clamp(1rem, 1.4vw, 1.14rem);
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-support {
  margin-top: 22px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-dim);
}

.hero-stats {
  position: relative;
  z-index: 2;
  margin-top: clamp(36px, 7vh, 80px);
  padding-bottom: 56px;
}
.stats-kicker {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 12px;
}
.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
.hero-stats-row .info-card {
  padding: 22px 20px 0 0;
  background: none;
  border: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  /* Kırpma kalırsa C/G/K gibi harflerin sol kavisi kart sınırında tıraşlanıyor. */
  overflow: visible;
}
.hero-stats-row .info-card:hover { transform: none; box-shadow: none; }
.hero-stats-row .card-index { display: none; }
.hero-stats-row h3 {
  font-family: var(--font-display);
  margin-top: 0;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  font-weight: 700;
  background: linear-gradient(120deg, var(--gold), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stats-row p {
  margin-top: 6px;
  font-size: 0.88rem;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 2;
  width: 26px;
  height: 42px;
  border: 1.5px solid var(--line-strong);
  border-radius: 999px;
  display: flex;
  justify-content: center;
  padding-top: 7px;
}
.scroll-cue-dot {
  width: 4px;
  height: 8px;
  border-radius: 4px;
  background: var(--cyan);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: translateY(0); opacity: 1; }
  55% { transform: translateY(14px); opacity: 0.1; }
}

/* ---------- Bölümler ---------- */
.section {
  position: relative;
  padding: clamp(84px, 11vh, 130px) 0;
}
.section-anchor { scroll-margin-top: calc(var(--header-h) + 12px); }

.section-head {
  max-width: 620px;
  margin-bottom: clamp(40px, 6vh, 64px);
}
.section-head.wide { max-width: 780px; }
.section-head h2 { margin-top: 16px; }
.section-head p:not(.eyebrow) {
  margin-top: 16px;
  font-size: 1.04rem;
  color: var(--ink-soft);
}

/* ---------- Kartlar ---------- */
.three-card-grid,
.four-card-grid,
.process-grid {
  display: grid;
  gap: 18px;
}
.three-card-grid { grid-template-columns: repeat(3, 1fr); }
.four-card-grid { grid-template-columns: repeat(4, 1fr); margin-top: 48px; }
.process-grid { grid-template-columns: repeat(4, 1fr); }

.info-card {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s var(--ease-out), border-color 0.35s ease, box-shadow 0.35s ease;
}
.info-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(111, 155, 255, 0.55), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.info-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 50px rgba(2, 6, 18, 0.55);
}
.info-card:hover::before { opacity: 1; }

.card-index {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--blue-soft);
}
.info-card h3 {
  margin-top: 14px;
  font-size: 1.08rem;
  line-height: 1.35;
}
.info-card p {
  margin-top: 10px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ---------- Ürün ailesi haritası ---------- */
.family-map {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 22px;
  align-items: stretch;
}
.family-links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.flow-line {
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: 8 14;
  opacity: 0.85;
}
.flow-gold { stroke: var(--gold); animation: flow 2.8s linear infinite; }
.flow-cyan { stroke: var(--cyan); animation: flow 2.8s linear infinite reverse; }
@keyframes flow { to { stroke-dashoffset: -88; } }

.workflow-column,
.workflow-core {
  position: relative;
  z-index: 1;
  padding: 26px 24px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.workflow-core {
  background: linear-gradient(160deg, rgba(20, 34, 66, 0.9), rgba(9, 16, 34, 0.9));
  border-color: rgba(111, 155, 255, 0.3);
  overflow: hidden;
}

.core-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 50% 30%, rgba(47, 107, 255, 0.3), transparent 60%);
  pointer-events: none;
  animation: corePulse 5s ease-in-out infinite;
}
@keyframes corePulse {
  0%, 100% { opacity: 0.65; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

.map-kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-soft);
}
.kicker-gold { color: var(--gold); }
.kicker-cyan { color: var(--cyan); }

.workflow-core h3 {
  position: relative;
  margin-top: 12px;
  font-size: 1.15rem;
}
.workflow-column ul, .workflow-core ul {
  position: relative;
  margin-top: 16px;
  display: grid;
  gap: 10px;
}
.workflow-column li, .workflow-core li {
  position: relative;
  padding-left: 18px;
  font-size: 0.93rem;
  color: var(--ink-soft);
}
.workflow-column li::before, .workflow-core li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue-soft);
  box-shadow: 0 0 10px rgba(111, 155, 255, 0.8);
}
.commerce li::before { background: var(--gold); box-shadow: 0 0 10px rgba(242, 199, 99, 0.7); }
.sales li::before { background: var(--cyan); box-shadow: 0 0 10px rgba(73, 216, 255, 0.7); }

/* ---------- Ürün kartları ---------- */
.product-cards {
  display: grid;
  gap: 26px;
}

.product-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(28px, 4vw, 48px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 26px;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s ease, border-color 0.4s ease;
}
.product-card:hover { transform: translateY(-4px); }

.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: transparent;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.product-card-bidup::before { background: linear-gradient(135deg, rgba(242, 199, 99, 0.8), transparent 55%); }
.product-card-sales::before { background: linear-gradient(135deg, rgba(73, 216, 255, 0.8), transparent 55%); }
.product-card:hover::before { opacity: 1; }

.product-card::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.35;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.product-card-bidup::after {
  top: -160px; right: -120px;
  background: radial-gradient(circle, rgba(242, 199, 99, 0.35), transparent 65%);
}
.product-card-sales::after {
  bottom: -160px; right: -120px;
  background: radial-gradient(circle, rgba(73, 216, 255, 0.3), transparent 65%);
}
.product-card:hover::after { opacity: 0.6; }

.product-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.label-gold { color: var(--gold); }
.label-cyan { color: var(--cyan); }

.product-copy h3 {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
}
.product-copy > p {
  margin-top: 14px;
  font-size: 1rem;
  color: var(--ink-soft);
}

.feature-list {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}
.feature-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 13px;
  height: 13px;
  border-radius: 4px;
  background: linear-gradient(135deg, rgba(111, 155, 255, 0.4), rgba(47, 107, 255, 0.12));
  border: 1px solid rgba(111, 155, 255, 0.5);
}
.product-card-bidup .feature-list li::before {
  background: linear-gradient(135deg, rgba(242, 199, 99, 0.4), rgba(242, 199, 99, 0.08));
  border-color: rgba(242, 199, 99, 0.55);
}
.product-card-sales .feature-list li::before {
  background: linear-gradient(135deg, rgba(73, 216, 255, 0.4), rgba(73, 216, 255, 0.08));
  border-color: rgba(73, 216, 255, 0.55);
}

.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--ink);
}
.product-cta::after {
  content: "→";
  transition: transform 0.3s var(--ease-out);
}
.product-cta:hover::after { transform: translateX(5px); }
.product-card-bidup .product-cta:hover { color: var(--gold); }
.product-card-sales .product-cta:hover { color: var(--cyan); }

/* Ürün mock UI panelleri */
.product-ui {
  position: relative;
  align-self: center;
  display: grid;
  gap: 14px;
  padding: 22px;
  background: rgba(6, 11, 26, 0.75);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(2, 6, 18, 0.65);
  animation: uiFloat 7s ease-in-out infinite;
}
@keyframes uiFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.product-card-sales .product-ui { animation-delay: -3.5s; }

.ui-topline, .mini-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.ui-topline span, .mini-row span, .signal-stack span {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: rgba(20, 33, 63, 0.85);
  border: 1px solid var(--line);
}
.chip-live {
  color: var(--gold) !important;
  border-color: rgba(242, 199, 99, 0.5) !important;
  position: relative;
  padding-left: 22px !important;
}
.chip-live::before {
  content: "";
  position: absolute;
  left: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(242, 199, 99, 0.9); }
  50% { opacity: 0.35; box-shadow: none; }
}

.listing-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  padding: 14px;
  background: rgba(13, 23, 46, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.image-placeholder {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(242, 199, 99, 0.35), rgba(47, 107, 255, 0.25));
  position: relative;
  overflow: hidden;
}
.image-placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.18) 50%, transparent 70%);
  animation: shimmer 2.6s ease-in-out infinite;
}
@keyframes shimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}
.listing-card span {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.listing-card strong {
  display: block;
  margin-top: 3px;
  font-size: 0.95rem;
  color: var(--ink);
}
.listing-card p {
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.review-queue {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-dim);
}
.review-queue i {
  width: 26px;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(242, 199, 99, 0.7), rgba(242, 199, 99, 0.15));
}
.review-queue i:nth-child(3) { opacity: 0.7; }
.review-queue i:nth-child(4) { opacity: 0.4; }

.memory-card, .next-action {
  padding: 14px 16px;
  background: rgba(13, 23, 46, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.memory-card span, .next-action span {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.memory-card strong, .next-action strong {
  display: block;
  margin-top: 5px;
  font-size: 0.95rem;
  color: var(--ink);
}
.memory-card p {
  margin-top: 5px;
  font-size: 0.8rem;
  color: var(--ink-dim);
}
.next-action { border-color: rgba(73, 216, 255, 0.45); }
.next-action strong { color: var(--cyan); }

.signal-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.signal-stack span { justify-content: flex-start; }

/* ---------- Teknoloji bandı ---------- */
.dark-band {
  background:
    radial-gradient(900px 500px at 50% 0%, rgba(47, 107, 255, 0.1), transparent 60%),
    linear-gradient(180deg, rgba(5, 9, 22, 0.85), rgba(4, 8, 18, 0.95));
  border-block: 1px solid var(--line);
}

.architecture-diagram {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 22px;
  align-items: stretch;
}
.arch-links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.arch-column, .arch-core {
  position: relative;
  z-index: 1;
  padding: 26px 24px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.arch-core {
  background: linear-gradient(160deg, rgba(20, 34, 66, 0.92), rgba(9, 16, 34, 0.92));
  border-color: rgba(111, 155, 255, 0.35);
  overflow: hidden;
  text-align: center;
}
.arch-core > span {
  position: relative;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-soft);
}
.arch-core h3 {
  position: relative;
  margin-top: 10px;
  font-size: 1.1rem;
}
.arch-column h3 {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.arch-list, .core-grid {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
}
.core-grid { justify-content: center; }
.arch-list span, .core-grid span {
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: rgba(20, 33, 63, 0.85);
  border: 1px solid var(--line);
  transition: border-color 0.25s ease, color 0.25s ease;
}
.arch-list span:hover, .core-grid span:hover { border-color: var(--blue-soft); color: var(--ink); }
.core-grid span {
  border-color: rgba(111, 155, 255, 0.4);
  background: rgba(30, 50, 96, 0.6);
}

/* ---------- Fit matrix ---------- */
.fit-matrix {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass);
}
.matrix-head {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  padding: 18px 26px;
  background: rgba(20, 34, 66, 0.65);
  border-bottom: 1px solid var(--line);
}
.matrix-head span {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-soft);
}
.matrix-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
  padding: 18px 26px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease;
}
.matrix-row:last-child { border-bottom: 0; }
.matrix-row:hover { background: rgba(20, 34, 66, 0.35); }
.matrix-row strong { color: var(--ink); font-size: 0.98rem; font-weight: 600; }
.matrix-row p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- Yol haritası ---------- */
.roadmap {
  position: relative;
  display: grid;
  gap: 0;
  padding-left: 34px;
}
.roadmap::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), var(--blue) 45%, var(--cyan));
  opacity: 0.5;
}
.roadmap-stage {
  position: relative;
  padding: 0 0 42px 0;
}
.roadmap-stage:last-child { padding-bottom: 0; }
.stage-marker {
  position: absolute;
  left: -31px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 2px solid var(--blue-soft);
  box-shadow: 0 0 14px rgba(111, 155, 255, 0.7);
}
.roadmap-stage:first-child .stage-marker { border-color: var(--gold); box-shadow: 0 0 14px rgba(242, 199, 99, 0.7); }
.roadmap-stage:last-child .stage-marker { border-color: var(--cyan); box-shadow: 0 0 14px rgba(73, 216, 255, 0.7); }

.stage-number {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--blue-soft);
}
.stage-copy h3 {
  margin-top: 8px;
  font-size: 1.14rem;
}
.stage-copy ul {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}
.stage-copy li {
  position: relative;
  padding-left: 18px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.stage-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-soft);
}

/* ---------- Ekip ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.team-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px 24px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform 0.35s var(--ease-out), border-color 0.35s ease, box-shadow 0.35s ease;
}
.team-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 50px rgba(2, 6, 18, 0.45);
}
.team-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #1e4fd6);
  box-shadow: 0 0 0 1px rgba(111, 155, 255, 0.4) inset, 0 10px 24px rgba(47, 107, 255, 0.3);
}
.team-card:nth-child(2) .team-avatar {
  background: linear-gradient(135deg, #d9a63a, #b8862f);
  box-shadow: 0 0 0 1px rgba(242, 199, 99, 0.45) inset, 0 10px 24px rgba(242, 199, 99, 0.25);
}
.team-card:nth-child(3) .team-avatar {
  background: linear-gradient(135deg, #1b9fc4, #0d7fb8);
  box-shadow: 0 0 0 1px rgba(73, 216, 255, 0.45) inset, 0 10px 24px rgba(73, 216, 255, 0.22);
}
.team-card h3 {
  margin-top: 16px;
  font-size: 1.12rem;
}
.team-role {
  margin-top: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-soft);
}
.team-card p {
  margin-top: 12px;
  font-size: 0.94rem;
  color: var(--ink-soft);
  flex-grow: 1;
}
.team-links {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
}
.team-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cyan);
  transition: color 0.25s ease;
  word-break: break-word;
}
.team-link:hover { color: var(--ink); }
.team-mail {
  font-weight: 500;
  color: var(--ink-dim);
}
.team-mail:hover { color: var(--cyan); }

/* ---------- SSS ---------- */
.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.faq-layout .section-head { margin-bottom: 0; }

.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item[open] { border-color: rgba(111, 155, 255, 0.45); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 52px 18px 22px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--blue-soft);
  transition: transform 0.3s var(--ease-out);
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); color: var(--cyan); }
.faq-item p {
  padding: 0 22px 20px;
  font-size: 0.96rem;
  color: var(--ink-soft);
}

/* ---------- Final panel ---------- */
.final-section { padding-bottom: clamp(84px, 11vh, 130px); }
.final-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  padding: clamp(36px, 5vw, 64px);
  background: linear-gradient(150deg, rgba(20, 34, 66, 0.85), rgba(7, 12, 27, 0.95));
  border: 1px solid rgba(111, 155, 255, 0.3);
  border-radius: 30px;
  overflow: hidden;
}
.final-glow { inset: -60% -20%; }
.final-panel h2 { margin-top: 14px; position: relative; }
.final-panel p:not(.eyebrow) {
  position: relative;
  margin-top: 14px;
  color: var(--ink-soft);
}
.final-actions {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.final-actions .button { width: 100%; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: rgba(3, 6, 16, 0.8);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 36px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { height: 34px; }
.footer-company p {
  margin-top: 18px;
  max-width: 34ch;
  font-size: 0.94rem;
  color: var(--ink-dim);
}
.footer-company strong {
  display: block;
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.footer h3 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 16px;
}
.footer-grid a {
  display: block;
  padding: 5px 0;
  font-size: 0.94rem;
  color: var(--ink-soft);
  transition: color 0.25s ease;
}
.footer-grid a:hover { color: var(--cyan); }
.footer-grid small {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--ink-dim);
}
.language-heading { margin-top: 26px; }
.footer-language { display: flex; gap: 8px; }
.footer-language button {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  transition: border-color 0.25s ease, color 0.25s ease;
}
.footer-language button:hover { border-color: var(--blue-soft); color: var(--ink); }
.footer-language button.active { border-color: var(--cyan); color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-block: 22px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-dim);
}

/* ---------- Reveal animasyon sistemi ---------- */
.reveal, .stagger > * {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.visible, .stagger > *.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger > *:nth-child(2) { transition-delay: 0.08s; }
.stagger > *:nth-child(3) { transition-delay: 0.16s; }
.stagger > *:nth-child(4) { transition-delay: 0.24s; }
.stagger > *:nth-child(5) { transition-delay: 0.32s; }
.stagger > *:nth-child(6) { transition-delay: 0.4s; }

/* Hero giriş sekansı */
.hero .reveal { transition-duration: 1.1s; }
.hero-content .reveal:nth-child(2) { transition-delay: 0.1s; }
.hero-content .reveal:nth-child(3) { transition-delay: 0.22s; }
.hero-content .reveal:nth-child(4) { transition-delay: 0.34s; }
.hero-content .reveal:nth-child(5) { transition-delay: 0.46s; }
.hero-stats.reveal { transition-delay: 0.5s; }

/* ---------- Mobil ---------- */
@media (max-width: 1020px) {
  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 55;
    flex-direction: column;
    gap: 0;
    padding: 12px 24px 24px;
    background: rgba(4, 8, 18, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
  }
  body.menu-open .nav-links {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-links a { padding: 14px 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-links a::after { display: none; }
  .menu-toggle { display: block; }
  .nav-cta { display: none; }

  .three-card-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .four-card-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }

  .family-map, .architecture-diagram { grid-template-columns: 1fr; }
  .family-links, .arch-links { display: none; }

  .product-card { grid-template-columns: 1fr; }
  .product-ui { max-width: 460px; }

  .faq-layout { grid-template-columns: 1fr; }
  .final-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .container { width: calc(100% - 36px); }

  .hero-content { margin-top: 10vh; }
  .hero-actions .button { width: 100%; }

  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 16px;
  }

  .four-card-grid, .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .matrix-head, .matrix-row { grid-template-columns: 1fr; gap: 6px; padding: 14px 18px; }
  .matrix-head span:last-child { display: none; }
  .scroll-cue { display: none; }
}

/* ---------- Açık tema ---------- */
:root[data-theme="light"] {
  color-scheme: light;
  --bg-0: #f4f7fe;
  --bg-1: #eaf0fb;
  --bg-2: #e2eaf9;
  --ink: #0d1830;
  --ink-soft: #3c4c70;
  --ink-dim: #6b7ca1;
  --line: rgba(24, 52, 110, 0.14);
  --line-strong: rgba(24, 52, 110, 0.26);
  --glass: rgba(255, 255, 255, 0.84);
  --glass-solid: rgba(255, 255, 255, 0.92);
}

[data-theme="light"] .site-bg {
  background:
    radial-gradient(1100px 700px at 85% -10%, rgba(47, 107, 255, 0.1), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(73, 216, 255, 0.08), transparent 55%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 60%, var(--bg-0) 100%);
}
[data-theme="light"] .bg-aurora { opacity: 0.22; }
[data-theme="light"] .bg-noise { opacity: 0.22; }
[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(rgba(24, 52, 110, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 52, 110, 0.06) 1px, transparent 1px);
}
[data-theme="light"] .site-header.scrolled {
  background: rgba(244, 247, 254, 0.82);
}
[data-theme="light"] .button-glass {
  background: rgba(255, 255, 255, 0.72);
}
[data-theme="light"] .hero .button-glass,
[data-theme="light"] .dark-band .button-glass {
  background: rgba(15, 26, 52, 0.5);
}
[data-theme="light"] .ui-topline span,
[data-theme="light"] .arch-list span {
  background: rgba(20, 33, 63, 0.85);
}
[data-theme="light"] .workflow-core,
[data-theme="light"] .arch-core {
  background: linear-gradient(160deg, #ffffff, #eef3ff);
  border-color: rgba(47, 107, 255, 0.35);
}
[data-theme="light"] .core-glow {
  background: radial-gradient(circle at 50% 30%, rgba(47, 107, 255, 0.14), transparent 60%);
}
[data-theme="light"] .matrix-head { background: rgba(226, 234, 249, 0.9); }
[data-theme="light"] .matrix-row:hover { background: rgba(226, 234, 249, 0.5); }
[data-theme="light"] .final-panel {
  background: linear-gradient(150deg, #ffffff, #e8eefc);
  border-color: rgba(47, 107, 255, 0.3);
}
[data-theme="light"] .footer { background: rgba(234, 240, 251, 0.85); }
[data-theme="light"] .language-menu { box-shadow: 0 18px 40px rgba(30, 60, 120, 0.18); }
[data-theme="light"] .info-card:hover { box-shadow: 0 24px 50px rgba(30, 60, 120, 0.16); }
[data-theme="light"] .stage-marker { background: #fff; }
[data-theme="light"] .footer-language button.active { border-color: var(--blue); color: var(--blue); }
[data-theme="light"] .language-menu button.active { color: var(--blue); }
[data-theme="light"] .eyebrow { color: #0d7fb8; }

/* Hero ve teknoloji bandı açık temada da koyu kalır (sinematik bantlar);
   ürün mock UI panelleri her temada koyu ürün ekranıdır. */
[data-theme="light"] .hero,
[data-theme="light"] .dark-band,
.product-ui {
  --ink: #eef4ff;
  --ink-soft: #b9c6e2;
  --ink-dim: #8493ba;
  --line: rgba(148, 170, 220, 0.14);
  --line-strong: rgba(148, 170, 220, 0.24);
  --glass: rgba(11, 19, 40, 0.78);
  --glass-solid: rgba(12, 21, 42, 0.9);
}
[data-theme="light"] .hero .eyebrow,
[data-theme="light"] .dark-band .eyebrow { color: var(--cyan); }
[data-theme="light"] .dark-band .workflow-core,
[data-theme="light"] .dark-band .arch-core {
  background: linear-gradient(160deg, rgba(20, 34, 66, 0.92), rgba(9, 16, 34, 0.92));
  border-color: rgba(111, 155, 255, 0.35);
}
[data-theme="light"] .dark-band .core-glow {
  background: radial-gradient(circle at 50% 30%, rgba(47, 107, 255, 0.3), transparent 60%);
}
.hero-scene { background: #030610; }
[data-theme="light"] .hero-vignette {
  background:
    linear-gradient(180deg, rgba(3, 6, 16, 0.55) 0%, rgba(3, 6, 16, 0) 22%),
    linear-gradient(0deg, #f4f7fe 0%, rgba(244, 247, 254, 0) 4%),
    radial-gradient(120% 90% at 30% 55%, rgba(3, 6, 16, 0.5) 0%, rgba(3, 6, 16, 0) 55%);
}

/* ---------- Tema düğmesi ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: border-color 0.25s ease, transform 0.25s var(--ease-out);
}
.theme-toggle:hover { border-color: var(--blue-soft); transform: translateY(-1px); }
.theme-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow:
    0 -7px 0 -5px var(--gold), 0 7px 0 -5px var(--gold),
    -7px 0 0 -5px var(--gold), 7px 0 0 -5px var(--gold),
    -5px -5px 0 -5px var(--gold), 5px 5px 0 -5px var(--gold),
    -5px 5px 0 -5px var(--gold), 5px -5px 0 -5px var(--gold);
  transform: scale(0.82);
  transition: box-shadow 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
[data-theme="light"] .theme-icon {
  background: transparent;
  box-shadow: inset -5px -4px 0 0 #3c4c70;
  transform: scale(1) rotate(-18deg);
}

/* ---------- Sözsüz eyebrow (yasal ad, büyük harfe zorlanmaz) ---------- */
.eyebrow.no-caps {
  text-transform: none;
  letter-spacing: 0.14em;
}

/* ---------- Yetenek şeridi (marquee) ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding: 15px 0;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.marquee-track span::after {
  content: "✦";
  margin: 0 26px;
  font-size: 0.7rem;
  color: var(--blue-soft);
  opacity: 0.7;
}
@keyframes marquee {
  to { transform: translateX(-33.3333%); }
}

/* ---------- Canlı teklif satırı (BidUp) ---------- */
.bid-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(13, 23, 46, 0.9);
  border: 1px solid rgba(242, 199, 99, 0.45);
  border-radius: var(--radius-md);
}
.bid-row > span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.bid-row strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  transition: transform 0.18s var(--ease-out);
}
.bid-row strong.bump { transform: scale(1.12); }

/* ---------- Daktilo imleci (SatışKoçum) ---------- */
.next-action strong.typing::after {
  content: "▎";
  margin-left: 2px;
  color: var(--cyan);
  animation: caret 1s steps(1) infinite;
}
@keyframes caret {
  50% { opacity: 0; }
}

/* ---------- Etkileşim ve hareket ---------- */

/* Scroll ilerleme çubuğu */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 80;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--gold), var(--blue) 45%, var(--cyan));
  box-shadow: 0 0 14px rgba(73, 216, 255, 0.55);
}

/* Kürsor spotlight — kartın camında imleci takip eden ışık */
@media (pointer: fine) {
  .spot {
    background-image: radial-gradient(
      560px circle at var(--mx, 50%) var(--my, 50%),
      rgba(111, 155, 255, 0.13),
      transparent 45%
    );
  }
  [data-theme="light"] .section .spot:not(.workflow-core):not(.arch-core) {
    background-image: radial-gradient(
      560px circle at var(--mx, 50%) var(--my, 50%),
      rgba(47, 107, 255, 0.08),
      transparent 45%
    );
  }
}

/* Ürün kartı 3D tilt */
.product-card.tilting {
  transition: transform 0.15s ease-out, box-shadow 0.4s ease, border-color 0.4s ease;
  will-change: transform;
}

/* Hero başlık — kelime kelime giriş.
   Bölünmüş modda gradyan yalnız kelime span'lerindedir; ana başlıkta da
   kalırsa animasyon sırasında ekranda boyama artığı (hayalet satır) bırakır. */
.hero-title.split {
  opacity: 1;
  transform: none;
  transition: none;
  background: none;
}
.hero-title .w {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.55em);
  animation: wordUp 0.85s var(--ease-out) forwards;
  background: linear-gradient(105deg, #ffffff 0%, #dbe7ff 55%, #8fb6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
@keyframes wordUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Final panel — dönen gradyan çerçeve */
@property --panel-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}
.final-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(
    from var(--panel-angle),
    rgba(242, 199, 99, 0.8),
    rgba(47, 107, 255, 0.8),
    rgba(73, 216, 255, 0.8),
    rgba(242, 199, 99, 0.8)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  animation: panelSpin 9s linear infinite;
  opacity: 0.75;
}
@keyframes panelSpin {
  to { --panel-angle: 360deg; }
}

/* Roadmap işaretçi nabzı */
.stage-marker { animation: markerPulse 3.2s ease-in-out infinite; }
.roadmap-stage:nth-child(2) .stage-marker { animation-delay: 0.7s; }
.roadmap-stage:nth-child(3) .stage-marker { animation-delay: 1.4s; }
.roadmap-stage:nth-child(4) .stage-marker { animation-delay: 2.1s; }
@keyframes markerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}
.roadmap-stage:hover .stage-copy h3 { color: var(--cyan); transition: color 0.3s ease; }

/* ---------- WhatsApp butonu ---------- */
.button-wa {
  color: #fff;
  background: linear-gradient(120deg, #29c05a 0%, #1da84a 100%);
  box-shadow: 0 0 0 1px rgba(120, 235, 160, 0.35) inset, 0 10px 30px rgba(37, 211, 102, 0.3);
}
.button-wa::before {
  content: "";
  width: 20px;
  height: 20px;
  background-color: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16 3C9.4 3 4 8.4 4 15c0 2.1.6 4.2 1.6 6L4 29l8.2-1.5c1.2.6 2.5.9 3.8.9 6.6 0 12-5.4 12-12S22.6 3 16 3zm0 22c-1.2 0-2.4-.3-3.5-.8l-.7-.4-4.9.9 1-4.7-.4-.7c-1-1.6-1.5-3.4-1.5-5.3 0-5.5 4.5-10 10-10s10 4.5 10 10-4.5 10-10 10zm5.5-7.5c-.3-.2-1.8-.9-2-1-.3-.1-.5-.2-.7.2-.2.3-.8 1-.9 1.2-.2.2-.3.2-.6.1-.3-.2-1.3-.5-2.4-1.5-.9-.8-1.5-1.8-1.7-2.1-.2-.3 0-.5.1-.6l.5-.6c.2-.2.2-.3.3-.5.1-.2 0-.4 0-.6-.1-.2-.7-1.7-1-2.3-.2-.6-.5-.5-.7-.5h-.6c-.2 0-.5.1-.8.4-.3.3-1 1-1 2.5s1.1 2.9 1.2 3.1c.2.2 2.1 3.2 5.1 4.5.7.3 1.3.5 1.7.6.7.2 1.4.2 1.9.1.6-.1 1.8-.7 2-1.4.3-.7.3-1.3.2-1.4-.1-.1-.3-.2-.6-.4z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16 3C9.4 3 4 8.4 4 15c0 2.1.6 4.2 1.6 6L4 29l8.2-1.5c1.2.6 2.5.9 3.8.9 6.6 0 12-5.4 12-12S22.6 3 16 3zm0 22c-1.2 0-2.4-.3-3.5-.8l-.7-.4-4.9.9 1-4.7-.4-.7c-1-1.6-1.5-3.4-1.5-5.3 0-5.5 4.5-10 10-10s10 4.5 10 10-4.5 10-10 10zm5.5-7.5c-.3-.2-1.8-.9-2-1-.3-.1-.5-.2-.7.2-.2.3-.8 1-.9 1.2-.2.2-.3.2-.6.1-.3-.2-1.3-.5-2.4-1.5-.9-.8-1.5-1.8-1.7-2.1-.2-.3 0-.5.1-.6l.5-.6c.2-.2.2-.3.3-.5.1-.2 0-.4 0-.6-.1-.2-.7-1.7-1-2.3-.2-.6-.5-.5-.7-.5h-.6c-.2 0-.5.1-.8.4-.3.3-1 1-1 2.5s1.1 2.9 1.2 3.1c.2.2 2.1 3.2 5.1 4.5.7.3 1.3.5 1.7.6.7.2 1.4.2 1.9.1.6-.1 1.8-.7 2-1.4.3-.7.3-1.3.2-1.4-.1-.1-.3-.2-.6-.4z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.button-wa:hover {
  box-shadow: 0 0 0 1px rgba(120, 235, 160, 0.55) inset, 0 16px 40px rgba(37, 211, 102, 0.45);
}
.footer-whatsapp { color: #35d072; }
.footer-whatsapp:hover { color: #5ee893; }

/* ---------- İletişim modalı ---------- */
.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.contact-modal[hidden] { display: none; }
.contact-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 16, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.22s ease;
}
.contact-dialog {
  position: relative;
  width: min(440px, 100%);
  padding: 32px 28px 26px;
  background: var(--glass-solid);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 40px 90px rgba(2, 6, 18, 0.6);
  opacity: 0;
  transform: translateY(14px) scale(0.97);
  transition: opacity 0.22s ease, transform 0.22s var(--ease-out);
}
.contact-modal.open .contact-backdrop { opacity: 1; }
.contact-modal.open .contact-dialog { opacity: 1; transform: translateY(0) scale(1); }
.contact-dialog h3 {
  margin-top: 12px;
  font-size: 1.3rem;
  line-height: 1.3;
}
.contact-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--ink-dim);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.contact-close:hover { color: var(--ink); border-color: var(--line-strong); }
.contact-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 22px;
}
.contact-options .button { width: 100%; }
.contact-copy-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.contact-address {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.contact-copy {
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-dim);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.contact-copy:hover { color: var(--cyan); border-color: var(--cyan); }

/* ---------- Erişilebilirlik ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .stagger > * { opacity: 1; transform: none; }
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}