/* TOKENS */
:root {
  --bg: #0a0a0a; --bg2: #111111;
  --border: #1e1e1e; --border2: #2a2a2a;
  --text: #f0f0f0; --text2: #888; --text3: #4a4a4a;
  --accent: #38bdf8; --accent-btn: #0284c7;
  --pad: 20px;
}
@media (min-width: 768px) { :root { --pad: 32px; } }

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 16px; line-height: 1.6; overflow-x: hidden; }
body::before { content: ''; position: fixed; inset: 0; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E"); pointer-events: none; z-index: 9999; opacity: 0.5; }
h1, h2, h3 { font-family: 'Unbounded', sans-serif; color: var(--text); letter-spacing: -0.01em; }

/* NAV */
body > nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; border-bottom: 1px solid var(--border); background: rgba(10,10,10,0.92); backdrop-filter: blur(16px); }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 var(--pad); height: 52px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: 'DM Mono', monospace; font-size: 13px; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
.nav-cta { background: var(--accent-btn); color: #fff; font-size: 13px; font-weight: 500; padding: 8px 16px; border-radius: 7px; text-decoration: none; white-space: nowrap; }

/* LAYOUT */
.container { max-width: 1100px; margin: 0 auto; padding: 0 var(--pad); }
.divider { max-width: 1100px; margin: 0 auto; padding: 0 var(--pad); border-top: 1px solid var(--border); }
section { padding: 56px 0; }
@media (min-width: 768px) { section { padding: 80px 0; } }

.section-tag { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
.section-tag::before { content: ''; display: inline-block; width: 20px; height: 1px; background: var(--text3); }

/* BUTTONS */
.btn-primary { display: flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent-btn); color: #fff; font-size: 15px; font-weight: 500; padding: 14px 24px; border-radius: 10px; text-decoration: none; transition: all 0.2s; min-height: 48px; }
.btn-primary:active { background: #0369a1; }
@media (min-width: 768px) { .btn-primary { display: inline-flex; font-size: 14px; } .btn-primary:hover { background: #0369a1; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(56,189,248,0.2); } }

.btn-secondary { display: flex; align-items: center; justify-content: center; gap: 8px; background: transparent; color: var(--text2); font-size: 15px; font-weight: 400; padding: 14px 24px; border-radius: 10px; text-decoration: none; transition: all 0.2s; border: 1px solid var(--border2); min-height: 48px; }
.btn-secondary:active { color: var(--text); }
@media (min-width: 768px) { .btn-secondary { display: inline-flex; font-size: 14px; } .btn-secondary:hover { color: var(--text); border-color: var(--text3); } }

/* HERO BASE (page-specific files override padding-bottom only) */
#hero { padding: 100px var(--pad) 48px; max-width: 1100px; margin: 0 auto; }
@media(min-width:768px) { #hero { padding: 140px var(--pad) 64px; } }

/* HERO CTA */
.hero-cta { display: flex; flex-direction: column; gap: 10px; }
@media(min-width:480px) { .hero-cta { flex-direction: row; flex-wrap: wrap; } }

/* BLOCK LABEL */
.block-label { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; }

/* SIDEBAR */
.sidebar { display: flex; flex-direction: column; gap: 12px; }

/* GRID BORDERED (gap-1px bordered grid pattern) */
.grid-bordered { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }

/* BACK LINK */
.back-link { display: inline-flex; align-items: center; gap: 8px; font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); text-decoration: none; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 28px; }
.back-link::before { content: '←'; font-size: 14px; }
.back-link:hover { color: var(--accent); }

/* FAQ ACCORDION */
.faq-list { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-q { width: 100%; background: none; border: none; padding: 18px 20px; text-align: left; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 56px; }
@media (min-width: 768px) { .faq-q { padding: 22px 28px; } .faq-q:hover { background: var(--bg2); } }
.faq-q-text { font-size: 15px; color: var(--text); font-weight: 400; line-height: 1.4; text-align: left; }
.faq-icon { font-family: 'DM Mono', monospace; font-size: 18px; color: var(--text3); flex-shrink: 0; transition: transform 0.2s, color 0.2s; }
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--accent); }
.faq-a { display: none; padding: 0 20px 18px; font-size: 14px; color: var(--text2); line-height: 1.75; font-weight: 300; }
.faq-item.open .faq-a { display: block; }
@media (min-width: 768px) { .faq-a { padding: 0 28px 22px; max-width: 720px; } }

/* CTA BOX */
.cta-box { border: 1px solid var(--border); border-radius: 14px; padding: 40px 24px; text-align: center; position: relative; overflow: hidden; background: var(--bg2); }
@media (min-width: 768px) { .cta-box { padding: 64px 48px; } }
.cta-box::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 500px; height: 250px; background: radial-gradient(ellipse, rgba(56,189,248,0.05) 0%, transparent 70%); pointer-events: none; }
.cta-headline { font-size: clamp(20px, 6vw, 36px); font-weight: 800; margin-bottom: 12px; }
.cta-sub { font-size: 14px; color: var(--text2); max-width: 360px; margin: 0 auto 24px; font-weight: 300; line-height: 1.7; }
.cta-btns { display: flex; flex-direction: column; gap: 10px; }
@media (min-width: 480px) { .cta-btns { flex-direction: row; justify-content: center; flex-wrap: wrap; } }

.section-headline { font-size: clamp(20px, 6vw, 36px); font-weight: 700; margin-bottom: 28px; }

/* LANG SWITCH */
.nav-right { display: flex; align-items: center; gap: 16px; }
.lang-switch { display: flex; align-items: center; gap: 2px; }
.lang-btn { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); text-decoration: none; padding: 4px 6px; border-radius: 4px; letter-spacing: 0.05em; transition: color 0.15s; }
.lang-btn:hover { color: var(--text2); }
.lang-btn.active { color: var(--text); }

/* FOOTER */
footer { border-top: 1px solid var(--border); max-width: 1100px; margin: 0 auto; padding: 24px var(--pad); display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-logo { font-family: 'DM Mono', monospace; font-size: 13px; color: var(--text3); text-decoration: none; }
.footer-logo span { color: var(--accent); }
.footer-copy { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); }
.footer-nav { display: flex; align-items: center; gap: 20px; }
.footer-nav a { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); text-decoration: none; letter-spacing: 0.04em; transition: color 0.15s; }
.footer-nav a:hover { color: var(--text2); }

/* BREADCRUMB */
.breadcrumb { max-width: 1100px; margin: 0 auto; padding: 12px var(--pad) 0; display: flex; align-items: center; gap: 6px; }
.breadcrumb a { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); text-decoration: none; transition: color 0.15s; }
.breadcrumb a:hover { color: var(--text2); }
.breadcrumb span { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text3); }
.breadcrumb-sep { color: var(--text3); opacity: 0.5; }