/* AuthFI — Shared Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --brand: #f5c518; --brand-dim: rgba(245,197,24,0.08); --bg: #000; --text: #fff; --gray: #888; --dim: #444; --card: #0a0a0a; --border: #1a1a1a; --radius: 16px; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, system-ui, sans-serif; background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; overflow-x: hidden; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.w { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
section { padding: 120px 0; }

/* ============================================
   Animations
   ============================================ */

@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes borderGlow { 0%, 100% { border-color: var(--border); } 50% { border-color: rgba(245,197,24,0.2); } }
@keyframes gradientShift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
@keyframes typewriter { from { width: 0; } to { width: 100%; } }

.fade-up { animation: fadeUp 0.8s ease-out forwards; }
.fade-in { animation: fadeIn 0.8s ease-out forwards; }
.d1 { animation-delay: 0.1s; opacity: 0; }
.d2 { animation-delay: 0.2s; opacity: 0; }
.d3 { animation-delay: 0.3s; opacity: 0; }
.d4 { animation-delay: 0.4s; opacity: 0; }
.d5 { animation-delay: 0.5s; opacity: 0; }

/* Scroll-triggered animations */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.9); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger children */
.stagger > * { opacity: 0; transform: translateY(20px); transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.stagger.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.08s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.16s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.24s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.32s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(7) { transition-delay: 0.48s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(8) { transition-delay: 0.56s; opacity: 1; transform: none; }

/* ============================================
   Typography
   ============================================ */

.label { font-size: 13px; font-weight: 600; color: var(--brand); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px; }
.title { font-size: clamp(32px, 4vw, 48px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.12; margin-bottom: 16px; }
.title-lg { font-size: clamp(40px, 6vw, 72px); font-weight: 700; letter-spacing: -0.035em; line-height: 1.05; }
.desc { font-size: 17px; color: var(--gray); line-height: 1.7; font-weight: 300; }
.desc-sm { font-size: 14px; color: var(--dim); line-height: 1.6; }
.grad { background: linear-gradient(135deg, var(--brand) 0%, #f59e0b 50%, var(--brand) 100%); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; animation: gradientShift 4s ease infinite; }
.center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-md { max-width: 520px; }
.max-lg { max-width: 680px; }
.mt-xs { margin-top: 12px; } .mt-sm { margin-top: 24px; } .mt-md { margin-top: 48px; } .mt-lg { margin-top: 64px; }
.mb-sm { margin-bottom: 24px; } .mb-md { margin-bottom: 48px; }

/* ============================================
   Buttons
   ============================================ */

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 12px 24px; border-radius: 100px; font-size: 14px; font-weight: 500; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); border: none; cursor: pointer; text-decoration: none; position: relative; overflow: hidden; }
.btn::after { content: ''; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.4s; }
.btn-brand { background: var(--brand); color: #000; }
.btn-brand:hover { background: #e8b308; box-shadow: 0 4px 40px rgba(245,197,24,0.2), 0 0 80px rgba(245,197,24,0.08); transform: translateY(-2px); }
.btn-brand:active { transform: translateY(0); }
.btn-ghost { background: rgba(255,255,255,0.03); color: var(--text); border: 1px solid rgba(255,255,255,0.08); }
.btn-ghost:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.15); transform: translateY(-1px); }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ============================================
   Cards
   ============================================ */

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); position: relative; }
.card:hover { border-color: #2a2a2a; transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.card .icon { font-size: 28px; margin-bottom: 16px; transition: transform 0.3s; }
.card:hover .icon { transform: scale(1.15); }
.card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { font-size: 14px; color: var(--gray); line-height: 1.65; }

/* Glow card variant */
.card-glow { position: relative; }
.card-glow::before { content: ''; position: absolute; inset: -1px; border-radius: inherit; background: linear-gradient(135deg, rgba(245,197,24,0.1), transparent, rgba(245,197,24,0.05)); opacity: 0; transition: opacity 0.4s; z-index: -1; }
.card-glow:hover::before { opacity: 1; }

/* ============================================
   Grid
   ============================================ */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ============================================
   Nav
   ============================================ */

nav { position: fixed; top: 0; width: 100%; z-index: 100; background: rgba(0,0,0,0.6); backdrop-filter: blur(24px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,0.04); transition: all 0.3s; }
nav.scrolled { background: rgba(0,0,0,0.85); border-bottom-color: rgba(255,255,255,0.06); }
nav .inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; max-width: 1120px; margin: 0 auto; }
nav .logo { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; transition: transform 0.3s; }
nav .logo:hover { transform: scale(1.05); }
nav .logo em { color: var(--brand); font-style: normal; }
nav .links { display: flex; align-items: center; gap: 28px; }
nav .links a { font-size: 13px; color: var(--gray); transition: color 0.2s; position: relative; }
nav .links a:hover { color: var(--text); }
nav .links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--brand); transition: width 0.3s; }
nav .links a:hover::after { width: 100%; }
nav .links a.active { color: var(--text); }
nav .links a.active::after { width: 100%; }
nav .hamburger { display: none; background: none; border: none; color: var(--gray); cursor: pointer; padding: 8px; transition: color 0.2s; }
nav .hamburger:hover { color: var(--text); }
nav .mobile-menu { display: none; position: fixed; top: 53px; left: 0; right: 0; background: rgba(0,0,0,0.95); backdrop-filter: blur(24px); border-bottom: 1px solid var(--border); padding: 16px 24px; }
nav .mobile-menu a { display: block; padding: 12px 0; font-size: 15px; color: var(--gray); border-bottom: 1px solid var(--border); transition: color 0.2s, padding-left 0.2s; }
nav .mobile-menu a:hover { color: var(--text); padding-left: 8px; }
nav .mobile-menu a:last-child { border-bottom: none; }
nav .mobile-menu.open { display: block; animation: fadeUp 0.3s ease-out; }

/* ============================================
   Footer
   ============================================ */

footer { border-top: 1px solid var(--border); padding: 64px 0 40px; }
footer .grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
footer .logo { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
footer .logo em { color: var(--brand); font-style: normal; }
footer .tag { font-size: 14px; color: #333; font-weight: 300; }
footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: #444; margin-bottom: 16px; font-weight: 500; }
footer ul { list-style: none; }
footer li { margin-bottom: 8px; }
footer li a { font-size: 14px; color: #555; transition: color 0.2s, padding-left 0.3s; }
footer li a:hover { color: var(--text); padding-left: 4px; }
footer .copy { text-align: center; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 13px; color: #333; }

/* ============================================
   Pricing
   ============================================ */

.plan { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 40px 32px; position: relative; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
.plan:hover { border-color: #2a2a2a; transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.plan.pop { border-color: rgba(245,197,24,0.3); background: linear-gradient(180deg, rgba(245,197,24,0.03) 0%, var(--card) 100%); }
.plan.pop:hover { border-color: rgba(245,197,24,0.5); box-shadow: 0 20px 60px rgba(245,197,24,0.06); }
.plan .badge { position: absolute; top: -1px; left: 50%; transform: translateX(-50%); background: var(--brand); color: #000; padding: 4px 16px; border-radius: 0 0 8px 8px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.plan h3 { font-size: 22px; font-weight: 600; }
.plan .price { font-size: 44px; font-weight: 700; letter-spacing: -0.03em; margin: 16px 0 4px; }
.plan .price small { font-size: 16px; font-weight: 400; color: var(--gray); }
.plan .plan-desc { font-size: 14px; color: var(--gray); margin-bottom: 28px; }
.plan ul { list-style: none; margin-bottom: 32px; }
.plan li { font-size: 14px; color: #aaa; padding: 7px 0; display: flex; align-items: center; gap: 10px; }
.plan li::before { content: '✓'; color: var(--brand); font-weight: 700; font-size: 12px; }
.plan-btn { display: block; width: 100%; padding: 14px; border-radius: 12px; font-size: 15px; font-weight: 600; text-align: center; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); border: none; cursor: pointer; text-decoration: none; }
.plan-btn.primary { background: var(--brand); color: #000; }
.plan-btn.primary:hover { box-shadow: 0 4px 30px rgba(245,197,24,0.25); transform: translateY(-1px); }
.plan-btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.plan-btn.ghost:hover { border-color: #444; transform: translateY(-1px); }

/* ============================================
   Comparison table
   ============================================ */

.compare table { width: 100%; border-collapse: collapse; }
.compare th { text-align: left; padding: 12px 16px; font-size: 13px; font-weight: 600; color: var(--gray); text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 1px solid var(--border); }
.compare th:not(:first-child) { text-align: center; min-width: 100px; }
.compare td { padding: 11px 16px; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.03); color: #888; transition: background 0.2s; }
.compare td:not(:first-child) { text-align: center; }
.compare td:first-child { min-width: 240px; }
.compare tr:hover td { background: rgba(255,255,255,0.015); }
.compare .check { color: var(--brand); font-weight: 700; }
.compare .dash { color: #222; }
.compare .cat { font-size: 11px; font-weight: 600; color: var(--brand); text-transform: uppercase; letter-spacing: 0.08em; padding-top: 20px; border-bottom: none; }

/* ============================================
   FAQ
   ============================================ */

.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { padding: 20px 0; font-size: 16px; font-weight: 500; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: color 0.2s; }
.faq-q:hover { color: var(--brand); }
.faq-q .arrow { transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1); color: var(--dim); }
.faq-a { padding: 0 0 20px; font-size: 15px; color: var(--gray); line-height: 1.7; display: none; animation: fadeUp 0.4s ease-out; }
.faq-item.open .faq-a { display: block; }
.faq-item.open .arrow { transform: rotate(180deg); }

/* ============================================
   Code block
   ============================================ */

.code-block { background: #050505; border: 1px solid var(--border); border-radius: 12px; padding: 24px; font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace; font-size: 13px; line-height: 1.8; overflow-x: auto; transition: border-color 0.3s, box-shadow 0.3s; }
.code-block:hover { border-color: #2a2a2a; box-shadow: 0 10px 40px rgba(0,0,0,0.4); }
.code-block .kw { color: #c084fc; }
.code-block .fn { color: #60a5fa; }
.code-block .str { color: #4ade80; }
.code-block .cm { color: #333; }
.code-block .br { color: var(--brand); }

/* ============================================
   Carousel
   ============================================ */

.carousel { overflow: hidden; padding: 20px 0; }
.carousel-track { display: flex; gap: 16px; animation: scroll 35s linear infinite; width: max-content; }
.carousel-track:hover { animation-play-state: paused; }
.carousel-card { flex-shrink: 0; width: 260px; padding: 24px; background: var(--card); border: 1px solid var(--border); border-radius: 14px; transition: all 0.3s; }
.carousel-card:hover { border-color: #333; transform: translateY(-3px); }
.carousel-card h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.carousel-card p { font-size: 13px; color: var(--gray); line-height: 1.5; }

/* ============================================
   Tags / pills
   ============================================ */

.tag-row { display: flex; gap: 8px; flex-wrap: wrap; }
.tag-row span { padding: 4px 12px; background: var(--card); border: 1px solid var(--border); border-radius: 6px; font-size: 12px; color: #888; transition: all 0.3s; }
.tag-row span:hover { border-color: #333; color: #aaa; transform: translateY(-1px); }

/* ============================================
   Page hero (sub-pages)
   ============================================ */

.page-hero { padding: 140px 0 80px; text-align: center; }
.page-hero h1 { font-size: clamp(36px, 5vw, 56px); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 16px; }
.page-hero p { font-size: 18px; color: var(--gray); max-width: 520px; margin: 0 auto; font-weight: 300; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  section { padding: 80px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  nav .links { display: none; }
  nav .hamburger { display: block; }
  footer .grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .plan .price { font-size: 36px; }
  .compare td:first-child { min-width: 160px; }
  .title-lg { font-size: 36px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}