/* ==========================================================================
   Apperium — Liquid Chrome design system (static port of the React/Tailwind theme)
   Obsidian base · pearl chrome · bronze warmth · deep violet undertone.
   ========================================================================== */

:root {
  --background: oklch(0.14 0.018 295);
  --foreground: oklch(0.96 0.005 90);
  --card: oklch(0.18 0.02 295);
  --muted-foreground: oklch(0.68 0.015 90);
  --bronze: oklch(0.74 0.09 55);
  --pearl: oklch(0.96 0.008 80);
  --chrome: oklch(0.9 0.012 90);
  --border: oklch(1 0 0 / 10%);
  --radius: 1.25rem;

  --font-serif: "Instrument Serif", ui-serif, Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; border-color: var(--border); }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 800px at 12% -10%, oklch(0.32 0.12 295 / 0.55), transparent 60%),
    radial-gradient(900px 700px at 110% 10%, oklch(0.42 0.1 55 / 0.35), transparent 55%),
    radial-gradient(1400px 900px at 50% 120%, oklch(0.28 0.09 295 / 0.5), transparent 60%),
    oklch(0.1 0.018 295);
  background-attachment: fixed;
  color: var(--foreground);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
}

::selection { background: oklch(0.74 0.09 55 / 0.4); color: oklch(0.98 0 0); }

a { color: inherit; text-decoration: none; }

/* ---------- Glass utilities ---------- */
.glass {
  background: linear-gradient(135deg, oklch(1 0 0 / 0.09), oklch(1 0 0 / 0.03) 40%, oklch(1 0 0 / 0.06));
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid oklch(1 0 0 / 0.12);
  box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.18), inset 0 -1px 0 oklch(0 0 0 / 0.25), 0 20px 60px -20px oklch(0 0 0 / 0.6);
}
.glass-strong {
  background: linear-gradient(140deg, oklch(1 0 0 / 0.14), oklch(1 0 0 / 0.04) 50%, oklch(1 0 0 / 0.08));
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  border: 1px solid oklch(1 0 0 / 0.16);
  box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.25), inset 0 -1px 0 oklch(0 0 0 / 0.3), 0 30px 80px -30px oklch(0 0 0 / 0.7);
}
.glass-pill {
  background: oklch(1 0 0 / 0.06);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid oklch(1 0 0 / 0.12);
  box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.18), 0 8px 24px -10px oklch(0 0 0 / 0.5);
}

.text-chrome {
  background: linear-gradient(180deg, oklch(0.98 0.005 80) 0%, oklch(0.82 0.015 90) 45%, oklch(0.55 0.02 280) 55%, oklch(0.88 0.04 60) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-bottom: 0.08em; /* gradyan kutusu alt kuyrukları (g, p) kapsasın */
}
.text-bronze {
  background: linear-gradient(180deg, oklch(0.85 0.1 60), oklch(0.62 0.11 45));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.serif { font-family: var(--font-serif); }
.italic { font-style: italic; }

/* ---------- Layout ---------- */
.wrap { width: min(92%, 1100px); margin: 0 auto; }
.narrow { width: min(92%, 820px); margin: 0 auto; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; left: 50%; top: 1.25rem; transform: translateX(-50%);
  z-index: 50; width: min(92%, 980px);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  border-radius: 999px; padding: 0.5rem 0.6rem 0.5rem 1.25rem;
}
.brand { display: flex; align-items: center; gap: 0.55rem; }
.brand-mark {
  width: 2rem; height: 2rem; border-radius: 0.7rem; display: inline-flex;
  align-items: center; justify-content: center; position: relative; overflow: hidden;
  background: conic-gradient(from 200deg at 50% 50%, oklch(0.95 0.01 80), oklch(0.5 0.02 280), oklch(0.82 0.1 55), oklch(0.95 0.01 80));
  box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.3);
}
.brand-mark span { font-family: var(--font-serif); font-style: italic; font-size: 0.85rem; color: oklch(0.15 0.02 295); }
.brand-name { font-family: var(--font-serif); font-size: 1.15rem; letter-spacing: -0.01em; color: var(--pearl); }
.nav-links { display: none; gap: 1.75rem; list-style: none; margin: 0; padding: 0; font-size: 0.9rem; color: var(--muted-foreground); }
.nav-links a:hover { color: var(--pearl); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 0.4rem; border-radius: 999px;
  padding: 0.5rem 1.1rem; font-size: 0.9rem; font-weight: 500; color: var(--pearl);
  background: oklch(1 0 0 / 0.06); border: 1px solid oklch(1 0 0 / 0.12);
}
.nav-cta:hover { background: oklch(1 0 0 / 0.12); }
@media (min-width: 768px) { .nav-links { display: flex; } }

/* ---------- Page hero (legal/app pages) ---------- */
.page-hero { padding: 9.5rem 0 2rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem; border-radius: 999px;
  padding: 0.35rem 0.9rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--muted-foreground);
}
.eyebrow .dot { width: 0.4rem; height: 0.4rem; border-radius: 999px; background: var(--bronze); box-shadow: 0 0 12px oklch(0.74 0.09 55 / 0.8); }
.page-title { font-family: var(--font-serif); font-size: clamp(2.4rem, 6vw, 4.2rem); line-height: 1.0; letter-spacing: -0.02em; color: var(--pearl); margin: 1.2rem 0 0; }
.page-sub { max-width: 60ch; color: var(--muted-foreground); margin: 1rem 0 0; font-size: 1.02rem; }

/* ---------- Content card (legal text) ---------- */
.content { border-radius: 2rem; padding: clamp(1.5rem, 4vw, 3.25rem); margin: 1.5rem 0 4rem; }
.content > *:first-child { margin-top: 0; }
.content h1 { font-family: var(--font-serif); font-size: 2rem; color: var(--pearl); letter-spacing: -0.01em; margin: 2.6rem 0 1rem; line-height: 1.15; }
.content h2 { font-family: var(--font-serif); font-size: 1.6rem; color: var(--pearl); margin: 2.4rem 0 0.9rem; padding-top: 1.6rem; border-top: 1px solid oklch(1 0 0 / 0.08); line-height: 1.2; }
.content h2:first-of-type { border-top: none; padding-top: 0; }
.content h3 { font-family: var(--font-serif); font-size: 1.28rem; color: var(--chrome); margin: 1.8rem 0 0.6rem; }
.content h4 { font-size: 0.95rem; font-weight: 600; color: var(--bronze); text-transform: uppercase; letter-spacing: 0.06em; margin: 1.4rem 0 0.5rem; }
.content h1 a, .content h2 a, .content h3 a { color: inherit; }
.content p { color: oklch(0.82 0.01 90); margin: 0.85rem 0; }
.content a { color: var(--bronze); text-decoration: underline; text-underline-offset: 2px; }
.content a:hover { color: var(--pearl); }
.content ul, .content ol { color: oklch(0.82 0.01 90); padding-left: 1.3rem; margin: 0.85rem 0; }
.content li { margin: 0.4rem 0; }
.content li::marker { color: var(--bronze); }
.content strong, .content b { color: var(--pearl); font-weight: 600; }
.content hr { border: none; height: 1px; background: linear-gradient(90deg, transparent, oklch(1 0 0 / 0.18), transparent); margin: 2.5rem 0; }
.content blockquote { border-left: 3px solid var(--bronze); margin: 1.4rem 0; padding: 0.4rem 0 0.4rem 1.2rem; color: oklch(0.78 0.01 90); }
.content blockquote h2 { border-top: none; padding-top: 0; }
.content img { max-width: 100%; height: auto; border-radius: 1rem; border: 1px solid oklch(1 0 0 / 0.12); margin: 1.4rem 0; box-shadow: 0 18px 40px -18px oklch(0 0 0 / 0.6); }
.content code { background: oklch(1 0 0 / 0.08); border-radius: 0.4rem; padding: 0.1rem 0.4rem; font-size: 0.9em; }

/* ---------- Homepage ---------- */
.home-hero { padding: 11rem 0 3rem; text-align: left; }
.home-hero h1 { font-family: var(--font-serif); font-size: clamp(3rem, 8vw, 6rem); line-height: 0.95; letter-spacing: -0.02em; margin: 1.4rem 0 0; }
.home-hero h1 .l1 { display: block; color: var(--pearl); }
.home-hero h1 .l2 { display: block; font-style: italic; }
.home-hero p { max-width: 52ch; color: var(--muted-foreground); margin: 1.4rem 0 0; font-size: 1.05rem; }

.section-label { display: flex; align-items: center; gap: 0.75rem; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--muted-foreground); }
.section-label .idx { color: var(--bronze); }
.section-label .line { height: 1px; width: 2.5rem; background: linear-gradient(90deg, oklch(1 0 0 / 0.3), transparent); }

.apps { padding: 2rem 0 5rem; }
.apps h2 { font-family: var(--font-serif); font-size: clamp(2rem,4vw,3rem); color: var(--pearl); letter-spacing: -0.01em; margin: 1.4rem 0 0; max-width: 18ch; line-height: 1.0; }
.app-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; margin-top: 2.5rem; }
@media (min-width: 640px) { .app-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .app-grid { grid-template-columns: 1fr 1fr 1fr; } }

.app-card { border-radius: 1.5rem; padding: 1.4rem; display: flex; flex-direction: column; transition: transform 0.4s ease; }
.app-card:hover { transform: translateY(-4px); }
.app-thumb { aspect-ratio: 16/10; border-radius: 1rem; position: relative; overflow: hidden; border: 1px solid oklch(1 0 0 / 0.2); display: flex; align-items: flex-end; padding: 0.8rem; }
.app-thumb .cat { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--pearl); background: oklch(0 0 0 / 0.35); padding: 0.25rem 0.6rem; border-radius: 999px; backdrop-filter: blur(8px); }
.app-card h3 { font-family: var(--font-serif); font-size: 1.55rem; color: var(--pearl); margin: 1rem 0 0; line-height: 1.05; }
.app-card .tag { color: var(--muted-foreground); font-size: 0.9rem; margin: 0.4rem 0 0; flex: 1; }
.app-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.1rem; }
.btn-line { display: inline-flex; align-items: center; gap: 0.4rem; border-radius: 999px; border: 1px solid oklch(1 0 0 / 0.12); background: oklch(1 0 0 / 0.05); padding: 0.55rem 0.95rem; font-size: 0.82rem; color: var(--pearl); }
.btn-line:hover { background: oklch(1 0 0 / 0.1); border-color: oklch(1 0 0 / 0.25); }

/* ---------- Contact ---------- */
.field { display: flex; flex-direction: column; gap: 0.45rem; margin-bottom: 1.1rem; }
.field label { font-size: 0.9rem; font-weight: 600; color: var(--pearl); }
.field input, .field textarea {
  background: oklch(0 0 0 / 0.25); border: 1px solid oklch(1 0 0 / 0.12); border-radius: 0.8rem;
  padding: 0.8rem 1rem; color: #fff; font: inherit; font-size: 0.98rem;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--bronze); box-shadow: 0 0 0 3px oklch(0.74 0.09 55 / 0.18); }
.btn-solid { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; border: none; cursor: pointer; border-radius: 999px; background: var(--pearl); color: oklch(0.12 0.02 295); padding: 0.85rem 1.6rem; font: inherit; font-weight: 600; font-size: 0.95rem; transition: transform 0.2s ease; }
.btn-solid:hover { transform: translateY(-2px); }
.btn-solid:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-status { margin-top: 1rem; padding: 0.85rem 1rem; border-radius: 0.8rem; font-size: 0.9rem; display: none; }
.form-status.ok { display: block; background: oklch(0.74 0.12 150 / 0.15); color: oklch(0.85 0.12 150); border: 1px solid oklch(0.74 0.12 150 / 0.3); }
.form-status.err { display: block; background: oklch(0.62 0.22 25 / 0.15); color: oklch(0.78 0.18 25); border: 1px solid oklch(0.62 0.22 25 / 0.3); }
.support-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0 0; }

/* ---------- Background ribbon (faint liquid-chrome) ---------- */
.bg-ribbon {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.35;
  background-image: url("/assets/img/chrome-ribbon.jpg"); background-size: cover; background-position: center;
  -webkit-mask-image: radial-gradient(ellipse 85% 60% at 50% 28%, #000 28%, transparent 74%);
  mask-image: radial-gradient(ellipse 85% 60% at 50% 28%, #000 28%, transparent 74%);
}

/* ---------- Hero with side visual ---------- */
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
@media (min-width: 980px) { .hero-grid { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; } }
.hero-left h1 { font-family: var(--font-serif); font-size: clamp(3rem, 8vw, 6rem); line-height: 1.02; letter-spacing: -0.02em; margin: 1.3rem 0 0; }
.hero-left h1 .l1 { display: block; color: var(--pearl); }
.hero-left h1 .l2 { display: block; font-style: italic; padding-bottom: 0.26em; line-height: 1.12; }
.hero-left p { max-width: 48ch; color: var(--muted-foreground); margin: 1.3rem 0 0; font-size: 1.04rem; }

.hero-right { position: relative; }
.hero-frame { border-radius: 2rem; padding: 0.75rem; position: relative; max-width: 460px; margin: 0 auto; }
.hero-img-wrap { position: relative; overflow: hidden; border-radius: 1.4rem; aspect-ratio: 5/6; }
.hero-img-wrap img { display: block; width: 100%; height: 100%; object-fit: cover; transform-origin: 50% 50%; animation: chrome-drift 26s ease-in-out infinite alternate; will-change: transform; }
.hero-sheen { position: absolute; inset: 0; pointer-events: none; mix-blend-mode: screen; background: linear-gradient(115deg, transparent 38%, oklch(1 0 0 / 0.22) 50%, transparent 62%); background-size: 250% 100%; animation: chrome-sheen 7.5s linear infinite; }
@keyframes chrome-drift { 0% { transform: scale(1.05) rotate(0deg); } 100% { transform: scale(1.13) rotate(1.6deg); } }
@keyframes chrome-sheen { 0% { background-position: 220% 0; } 100% { background-position: -120% 0; } }
@media (prefers-reduced-motion: reduce) { .animate-float, .hero-img-wrap img, .hero-sheen { animation: none !important; } }
.hero-frame-label { position: absolute; left: 1.3rem; right: 1.3rem; bottom: 1.3rem; display: flex; align-items: center; justify-content: space-between; border-radius: 1rem; padding: 0.65rem 0.95rem; }
.hero-frame-label .mini { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted-foreground); }
.hero-frame-label .ser { font-family: var(--font-serif); font-style: italic; color: var(--pearl); font-size: 1.05rem; }
.hero-frame-label .live { color: var(--bronze); font-size: 0.72rem; }
.hero-float { position: absolute; right: -0.4rem; bottom: -0.9rem; border-radius: 1rem; padding: 0.6rem 0.95rem; }
.hero-float .mini { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted-foreground); }
.hero-float .ser2 { margin-top: 0.15rem; font-size: 0.95rem; color: var(--pearl); }
@media (max-width: 980px) { .hero-float { display: none; } }

@keyframes float-slow { 0%,100% { transform: translate3d(0,0,0) rotate(0deg); } 50% { transform: translate3d(0,-16px,0) rotate(2deg); } }
.animate-float { animation: float-slow 12s ease-in-out infinite; }

/* ---------- Contact two-column ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: start; margin-bottom: 4rem; }
@media (min-width: 980px) { .contact-grid { grid-template-columns: 1.25fr 0.75fr; } }
.contact-form-card { max-width: none; margin: 0; }
.contact-alt { color: var(--muted-foreground); font-size: 0.9rem; margin: 1.4rem 0 0; }
.contact-alt a { color: var(--bronze); text-decoration: underline; text-underline-offset: 2px; }
.contact-visual .hero-img-wrap { aspect-ratio: 4/5; }

/* ---------- Hero frame tag (clickable label) ---------- */
.hero-frame-tag { position: absolute; left: 1.3rem; bottom: 1.3rem; display: inline-flex; align-items: center; gap: 0.45rem; border-radius: 999px; padding: 0.5rem 1rem; color: var(--pearl); font-family: var(--font-serif); font-style: italic; font-size: 1.08rem; transition: color 0.2s; }
.hero-frame-tag:hover { color: var(--bronze); }

/* ---------- App cards (no thumbnail, clickable title) ---------- */
.app-card .app-cat { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.18em; color: var(--muted-foreground); }
.app-card h3 { margin-top: 0.5rem; }
.app-card h3 a { color: var(--pearl); transition: color 0.2s; }
.app-card h3 a:hover { color: var(--bronze); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid oklch(1 0 0 / 0.06); padding: 3.5rem 0 2.5rem; margin-top: 2rem; }
.footer-top { display: flex; flex-direction: column; gap: 2rem; justify-content: space-between; }
@media (min-width: 640px) { .footer-top { flex-direction: row; align-items: flex-end; } }
.footer p { color: var(--muted-foreground); font-size: 0.8rem; max-width: 30ch; margin: 0.8rem 0 0; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2.5rem; font-size: 0.9rem; color: var(--muted-foreground); }
.footer-links a:hover { color: var(--pearl); }
.footer-copy { color: var(--muted-foreground); font-size: 0.75rem; border-top: 1px solid oklch(1 0 0 / 0.06); margin-top: 2.5rem; padding-top: 1.5rem; }