/* ===================================================
   FANUP Landing Page — Glassmorphism Rebrand
   =================================================== */

/* ─── Variables ─── */
:root {
  --brand: #7C3AED;
  --brand-light: #EDE9FE;
  --brand-hover: #6D28D9;
  --bg: #FFFFFF;
  --bg-sub: #F8F7FF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --nav-height: 64px;
  --container-max: 1160px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.10);
  --nav-bg: rgba(255,255,255,0.85);
  --glass: rgba(255,255,255,0.6);
  --glass-border: rgba(255,255,255,0.8);
  --logo-filter: brightness(0);
  --logo-filter-footer: brightness(0) invert(1);
}
[data-theme="dark"] {
  --bg: #0B0B10;
  --bg-sub: #111118;
  --gray-50: #16161D;
  --gray-100: #1E1E28;
  --gray-200: #2A2A38;
  --gray-400: #6B6B85;
  --gray-500: #9B9BB5;
  --text-primary: #F0F0F8;
  --text-secondary: #9B9BB5;
  --nav-bg: rgba(11,11,16,0.88);
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.1);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --logo-filter: brightness(0) invert(1);
  --logo-filter-footer: brightness(0) invert(1);
}

/* ─── Reset ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:1rem;line-height:1.8;color:var(--text-primary);background:var(--bg);
  -webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:break-word;
}
body.theme-ready{transition:background-color 0.25s,color 0.25s}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ─── Noise Overlay (subtle film grain) ─── */
body::after{
  content:"";position:fixed;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity:0.025;pointer-events:none;z-index:9998;
  mix-blend-mode:overlay;
}
@media(max-width:768px){body::after{display:none}}

/* ─── Container ─── */
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}

/* ─── Typography ─── */
h1{font-size:clamp(2.6rem,5vw,4rem);font-weight:900;line-height:1.12;letter-spacing:-0.04em}
h2{font-size:clamp(1.8rem,3.2vw,2.6rem);font-weight:800;line-height:1.25;letter-spacing:-0.035em}
h3{font-size:1.25rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:12px}
em{font-style:normal;background:linear-gradient(135deg,#7C3AED,#A855F7,#EC4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ─── Section Tags ─── */
.section-tag{
  display:inline-block;font-size:0.72rem;font-weight:700;letter-spacing:0.16em;
  text-transform:uppercase;color:var(--brand);margin-bottom:16px;
  padding:5px 12px;border-radius:50px;
  background:rgba(124,58,237,0.08);border:1px solid rgba(124,58,237,0.15);
}
[data-theme="dark"] .section-tag{background:rgba(124,58,237,0.15);border-color:rgba(124,58,237,0.3)}

/* ─── Buttons ─── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:50px;font-size:0.92rem;font-weight:600;transition:all 0.2s;white-space:nowrap}
.btn-lg{padding:15px 32px;font-size:1rem}
.btn-primary{background:linear-gradient(135deg,#8B5CF6,#7C3AED,#6D28D9);color:#fff;box-shadow:0 2px 12px rgba(124,58,237,0.25)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 4px 20px rgba(124,58,237,0.3)}
.btn-primary:active{transform:translateY(0);filter:brightness(1)}
.btn-ghost{background:transparent;color:var(--text-primary);border:1.5px solid var(--gray-200)}
.btn-ghost:hover{background:var(--gray-50);border-color:var(--gray-400)}
.btn-white{background:#fff;color:var(--brand);font-weight:700;box-shadow:0 4px 20px rgba(0,0,0,0.15)}
.btn-white:hover{background:#F5F3FF;transform:translateY(-1px)}

/* ─── Fade-up ─── */
.fade-up{opacity:0;transform:translateY(20px);transition:opacity 0.6s cubic-bezier(0.22,0.61,0.36,1),transform 0.6s cubic-bezier(0.22,0.61,0.36,1)}
.fade-up.visible{opacity:1;transform:translateY(0)}
.delay-1{transition-delay:0.1s}.delay-2{transition-delay:0.2s}.delay-3{transition-delay:0.3s}
.hero .fade-up{opacity:0;transform:translateY(0);transition:none;animation:heroFadeUp 0.65s cubic-bezier(0.22,0.61,0.36,1) forwards}
.hero .delay-1{animation-delay:0.12s}.hero .delay-2{animation-delay:0.24s}
@keyframes heroFadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@media(scripting:none){.fade-up{opacity:1!important;transform:none!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}.fade-up{opacity:1!important;transform:none!important}}

/* ─── Section ─── */
.section{padding:120px 0}
.section-alt{background:var(--bg-sub)}

/* ═══════════════════════════ NAV ═══════════════════════════ */
.topnav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-height);background:var(--nav-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--gray-200)}
body.theme-ready .topnav{transition:box-shadow 0.25s}
.topnav.scrolled{box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;height:var(--nav-height);gap:32px}
.nav-logo{flex-shrink:0;display:flex;align-items:center}
.logo-img{height:28px;width:auto;filter:var(--logo-filter)}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1}
.nav-menu a{padding:6px 14px;border-radius:50px;font-size:0.9rem;font-weight:500;color:var(--text-secondary);transition:color 0.2s,background 0.2s}
.nav-menu a:hover{color:var(--text-primary);background:var(--gray-100)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.theme-toggle{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);background:var(--gray-100);transition:background 0.2s}
.theme-toggle:hover{background:var(--gray-200);color:var(--text-primary)}
.icon-sun{display:none}[data-theme="dark"] .icon-moon{display:none}[data-theme="dark"] .icon-sun{display:block}
.nav-hamburger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--text-primary);border-radius:2px}
.nav-menu.open{display:flex;flex-direction:column;position:fixed;top:var(--nav-height);left:0;right:0;background:var(--nav-bg);backdrop-filter:blur(20px);border-bottom:1px solid var(--gray-200);padding:16px 24px 24px;gap:4px;box-shadow:var(--shadow-md)}

/* ═══════════════════════════ HERO ═══════════════════════════ */
.hero{position:relative;padding:calc(var(--nav-height) + 80px) 0 100px;overflow:hidden}
.hero-glow{position:absolute;top:-30%;left:50%;transform:translateX(-50%);width:900px;height:600px;background:radial-gradient(ellipse,rgba(124,58,237,0.12) 0%,rgba(236,72,153,0.06) 40%,transparent 70%);pointer-events:none;z-index:0}
[data-theme="dark"] .hero-glow{opacity:0.6}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;position:relative;z-index:1}
.hero-text{display:flex;flex-direction:column}
.hero-sub{font-size:1.12rem;color:var(--text-secondary);line-height:1.75;margin-bottom:36px;margin-top:20px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* Hero Glass Visual */
.hero-visual{position:relative;height:380px}
.glass-card{
  position:absolute;border-radius:var(--radius-lg);
  background:var(--glass);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid var(--glass-border);box-shadow:var(--shadow-lg);
  padding:20px;transition:transform 0.4s cubic-bezier(0.175,0.885,0.32,1.275);
}
.glass-card--gift{
  width:280px;top:10px;left:0;transform:rotate(-4deg);z-index:1;
}
.glass-card--gift:hover{transform:rotate(0deg) scale(1.03)}
.glass-card--chat{
  width:300px;bottom:0;right:0;transform:rotate(2deg);z-index:2;
}
.glass-card--chat:hover{transform:rotate(0deg) scale(1.03)}
.glass-card-header{display:flex;align-items:center;gap:8px;font-size:0.78rem;font-weight:600;color:var(--text-secondary);margin-bottom:14px}
.glass-card-header svg{color:var(--brand)}
.status-dot{width:8px;height:8px;border-radius:50%;background:#10B981;flex-shrink:0}

/* Shipment card */
.glass-shipment{display:flex;flex-direction:column;gap:8px}
.shipment-row{display:flex;gap:12px;font-size:0.78rem}
.shipment-label{color:var(--text-secondary);min-width:48px;font-weight:500}
.shipment-value{color:var(--text-primary);font-weight:600}
.shipment-blur{filter:blur(5px);color:var(--text-primary);font-weight:600;user-select:none}
.shipment-verified{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:5px 12px;border-radius:50px;background:rgba(124,58,237,0.1);color:var(--brand);font-size:0.72rem;font-weight:700;letter-spacing:0.02em}

/* Chat card */
.glass-chat-body{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.gc-msg{padding:8px 12px;border-radius:14px;font-size:0.78rem;line-height:1.5;max-width:90%}
.gc-msg--fan{background:var(--gray-100);color:var(--text-primary);align-self:flex-start;border-bottom-left-radius:4px}
.gc-msg--ai{background:var(--brand);color:#fff;align-self:flex-end;border-bottom-right-radius:4px;position:relative}
.gc-ai-badge{font-size:0.58rem;font-weight:800;background:rgba(255,255,255,0.25);padding:1px 5px;border-radius:4px;margin-left:6px;vertical-align:middle}
.glass-cheez-counter{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;background:rgba(245,158,11,0.08);border:1px solid rgba(245,158,11,0.15)}
.cheez-icon{font-size:1.2rem}
.cheez-amount{font-size:0.9rem;font-weight:800;color:#D97706}
[data-theme="dark"] .cheez-amount{color:#FBBF24}
.cheez-label{font-size:0.7rem;color:var(--text-secondary);margin-left:auto}

/* ═══════════════════════════ SAFETY GLASS ═══════════════════════════ */
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.safety-visual{display:flex;justify-content:center}
.safety-card{
  background:var(--glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  padding:32px;max-width:360px;width:100%;box-shadow:var(--shadow-lg);
}
.safety-card-top{display:flex;align-items:center;gap:10px;margin-bottom:24px}
.safety-logo-mark{width:40px;height:40px;border-radius:12px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;color:var(--brand)}
[data-theme="dark"] .safety-logo-mark{background:rgba(124,58,237,0.2)}
.safety-card-title{font-size:0.88rem;font-weight:700;color:var(--text-primary)}
.safety-rows{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}
.safety-row{display:flex;gap:16px;font-size:0.82rem}
.sr-label{color:var(--text-secondary);min-width:52px;font-weight:500}
.sr-value{color:var(--text-primary);font-weight:600}
.sr-blur{filter:blur(6px);color:var(--text-primary);font-weight:600;user-select:none}
.sr-status{color:#10B981;font-weight:600}
.safety-neon-tag{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:50px;font-size:0.78rem;font-weight:700;letter-spacing:0.03em;color:var(--brand);background:rgba(124,58,237,0.08);border:1px solid rgba(124,58,237,0.2);box-shadow:0 0 20px rgba(124,58,237,0.1)}
[data-theme="dark"] .safety-neon-tag{background:rgba(124,58,237,0.15);border-color:rgba(124,58,237,0.4);box-shadow:0 0 30px rgba(124,58,237,0.2);color:#A78BFA}
.safety-text h2{margin-bottom:20px}
.safety-text p{font-size:1.05rem;color:var(--text-secondary);line-height:1.8}

/* ═══════════════════════════ AVATAR ═══════════════════════════ */
.avatar-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.avatar-text h2{margin-bottom:16px}
.avatar-text p{font-size:1.05rem;color:var(--text-secondary);line-height:1.8}
.avatar-visual{display:flex;justify-content:center}

/* Avatar Mockup Glass Panel */
.glass-panel{
  background:var(--glass);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);max-width:380px;width:100%;overflow:hidden;
}
.am-header{display:flex;align-items:center;gap:8px;padding:16px 20px;border-bottom:1px solid var(--gray-200);font-size:0.85rem}
.am-header strong{color:var(--text-primary);flex:1}
.am-live{font-size:0.65rem;font-weight:800;color:#fff;background:#EF4444;padding:3px 8px;border-radius:50px}
.am-chat{padding:16px 20px;display:flex;flex-direction:column;gap:8px;min-height:200px;background:var(--bg-sub)}
.am-bubble{padding:10px 14px;border-radius:16px;font-size:0.82rem;line-height:1.55;max-width:85%}
.am-bubble--fan{background:var(--bg);border:1px solid var(--gray-200);color:var(--text-primary);align-self:flex-start;border-bottom-left-radius:4px}
.am-bubble--ai{background:var(--brand);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.am-ai-tag{font-size:0.58rem;font-weight:800;background:rgba(255,255,255,0.2);padding:2px 6px;border-radius:4px;margin-left:6px}
.am-footer{display:flex;align-items:center;padding:14px 20px;border-top:1px solid var(--gray-200);background:var(--bg)}
.am-stat{flex:1;text-align:center}
.am-stat-num{display:block;font-size:0.95rem;font-weight:800;color:var(--text-primary)}
.am-stat-num--green{color:#10B981}
.am-stat-label{font-size:0.68rem;color:var(--text-secondary)}
.am-divider{width:1px;height:28px;background:var(--gray-200)}

/* ═══════════════════════════ CHEEZ FLOW ═══════════════════════════ */
.cheez-section{text-align:center}
.cheez-header{margin-bottom:64px}
.cheez-header h2{margin-top:8px}

.cheez-flow-visual{padding:48px 0}
.cf-track{display:flex;align-items:stretch;justify-content:center;gap:0}

/* Card */
.cf-card{
  width: 240px;
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  text-align: left;
  position: relative;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.cf-card::after{
  content:"";
  position:absolute; inset:-1px;
  border-radius: 18px;
  pointer-events:none;
  background: radial-gradient(420px 160px at 20% 0%, rgba(124,58,237,0.18), transparent 60%),
              radial-gradient(360px 160px at 90% 80%, rgba(236,72,153,0.10), transparent 65%);
  opacity: 0.8;
}
.cf-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(124,58,237,0.35);
}
.cf-card-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;position:relative;z-index:1}
.cf-meta{display:flex;flex-direction:column;gap:2px}
.cf-kicker{
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
}
.cf-title{font-size:0.95rem;font-weight:900;letter-spacing:-0.03em;color:var(--text-primary)}
.cf-desc{
  position:relative;z-index:1;
  font-size:0.82rem;
  color: var(--text-secondary);
  line-height:1.65;
  margin:0;
}

/* Icon */
.cf-icon{
  width: 44px; height: 44px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.55);
}
[data-theme="dark"] .cf-icon{border-color: rgba(255,255,255,0.12)}
.cf-icon svg{opacity:0.98}
.cf-card--pink  .cf-icon{background: linear-gradient(145deg, rgba(236,72,153,0.18), rgba(236,72,153,0.08)); color:#EC4899}
.cf-card--purple .cf-icon{background: linear-gradient(145deg, rgba(124,58,237,0.22), rgba(124,58,237,0.10)); color:var(--brand)}
.cf-card--green .cf-icon{background: linear-gradient(145deg, rgba(16,185,129,0.20), rgba(16,185,129,0.08)); color:#059669}
.cf-card--yellow .cf-icon{background: linear-gradient(145deg, rgba(245,158,11,0.20), rgba(245,158,11,0.08)); color:#D97706}
[data-theme="dark"] .cf-card--pink  .cf-icon{background: linear-gradient(145deg, rgba(236,72,153,0.20), rgba(236,72,153,0.06))}
[data-theme="dark"] .cf-card--purple .cf-icon{background: linear-gradient(145deg, rgba(124,58,237,0.22), rgba(124,58,237,0.06))}
[data-theme="dark"] .cf-card--green .cf-icon{background: linear-gradient(145deg, rgba(16,185,129,0.22), rgba(16,185,129,0.06))}
[data-theme="dark"] .cf-card--yellow .cf-icon{background: linear-gradient(145deg, rgba(245,158,11,0.22), rgba(245,158,11,0.06))}

.cf-line{
  width: 56px;
  align-self: center;
  height: 2px;
  background: rgba(124,58,237,0.18);
  position:relative;
  flex-shrink:0;
  margin: 0 10px;
  border-radius: 2px;
  overflow:hidden;
}
.cf-line-glow{
  position:absolute; inset:0;
  background: linear-gradient(90deg, rgba(236,72,153,0.0), rgba(124,58,237,0.75), rgba(16,185,129,0.55), rgba(236,72,153,0.0));
  opacity: 0.9;
  transform: translateX(-40%);
  animation: cfFlow 2.2s ease-in-out infinite;
}
@keyframes cfFlow { 0%{transform:translateX(-55%)} 50%{transform:translateX(0%)} 100%{transform:translateX(55%)} }

.cheez-caption{margin-top:12px;font-size:0.92rem;color:var(--text-secondary)}

/* ═══════════════════════════ CTA ═══════════════════════════ */
.cta-section{position:relative;background:linear-gradient(140deg,#4C1D95,#6D28D9,#7C3AED);padding:100px 0;overflow:hidden;text-align:center}
.cta-inner{position:relative;z-index:1}
.cta-section h2{color:#fff;font-size:clamp(2rem,4vw,2.8rem);margin-bottom:16px}
.cta-sub{color:rgba(255,255,255,0.6);font-size:1rem;letter-spacing:0.05em;margin-bottom:36px}

/* ═══════════════════════════ FOOTER ═══════════════════════════ */
.footer{background:#0A090E;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.07)}
.footer-logo{margin-bottom:16px}
.logo-img-footer{height:26px;filter:var(--logo-filter-footer)}
.footer-desc{font-size:0.88rem;color:rgba(255,255,255,0.4);line-height:1.75;max-width:280px}
.footer-col h5{font-size:0.85rem;font-weight:700;color:rgba(255,255,255,0.9);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:0.85rem;color:rgba(255,255,255,0.45);transition:color 0.2s}
.footer-links a:hover{color:rgba(255,255,255,0.85)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:20px 0}
.footer-copy{font-size:0.78rem;color:rgba(255,255,255,0.3)}
.footer-legal{display:flex;gap:20px}
.footer-legal a{font-size:0.78rem;color:rgba(255,255,255,0.35);transition:color 0.2s}
.footer-legal a:hover{color:rgba(255,255,255,0.7)}

/* ═══════════════════════════ RESPONSIVE ═══════════════════════════ */
@media(max-width:768px){
  .nav-menu{display:none}.nav-menu.open{display:flex}.nav-hamburger{display:flex}
  .nav-right .btn-primary{display:none}
  .hero{padding:calc(var(--nav-height)+48px) 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{height:320px;order:- 1}
  .glass-card--gift{width:240px;top:0;left:5%}
  .glass-card--chat{width:260px;bottom:0;right:5%}
  .section{padding:80px 0}
  .safety-grid,.avatar-grid{grid-template-columns:1fr;gap:48px}
  .safety-visual{order:-1}
  .cf-track{flex-wrap:wrap;gap:12px;justify-content:center}
  .cf-line{display:none}
  .cf-card{width:min(360px, 100%);padding:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .footer-desc{max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .hero-visual{height:280px}
  .glass-card--gift{width:200px;padding:14px}
  .glass-card--chat{width:220px;padding:14px}
  .hero-actions{flex-direction:column}.hero-actions .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .cf-track{flex-direction:column}
}