/* === ROYHUG.COM — Design System === */
:root {
  --bg: #0f0d12;
  --bg2: #1b1820;
  --card: rgba(27,24,32,0.92);
  --card-border: rgba(231,201,123,0.1);
  --gold: #e7c97b;
  --gold-dim: #8b7d4d;
  --gold-glow: rgba(231,201,123,0.25);
  --ink: #f8f2df;
  --text2: #c0b8a5;
  --text3: #8b8578;
  --radius: 20px;
  --radius-sm: 12px;
  --wood: #4ade80;
  --fire: #ef4444;
  --earth: #d4a373;
  --metal: #f8f8f8;
  --water: #3b82f6;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Noto Serif SC',sans-serif;font-weight:300;
  background:var(--bg);color:var(--ink);min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}

/* === Nav === */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 24px;
  background:rgba(15,13,18,0.85);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--card-border);
}
.nav-brand{display:flex;align-items:center;gap:10px;font-family:'Cinzel',serif;font-size:20px;font-weight:700;letter-spacing:1px}
.nav-logo{height:32px;width:auto;border-radius:0}
.nav-brand .g{background:linear-gradient(135deg,var(--gold),#f5e3a8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:20px}
.nav-links a{
  font-size:12px;font-weight:500;letter-spacing:0.5px;text-transform:uppercase;
  color:var(--text3);transition:color 0.2s;cursor:pointer;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold)}
.nav-toggle{display:none;background:none;border:none;color:var(--gold);font-size:24px;cursor:pointer}

/* === Pages === */
.page{display:none;padding-top:70px;min-height:100vh}
.page.active{display:block}

/* === Sections === */
.container{width:100%;max-width:480px;margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{max-width:720px}}
@media(min-width:1024px){.container{max-width:960px}}
section{padding:80px 0}
.section-tag{
  font-family:'Cinzel',serif;font-size:11px;letter-spacing:3px;
  color:var(--gold-dim);text-transform:uppercase;margin-bottom:8px;
}
.section-title{
  font-family:'Cinzel',serif;font-size:28px;font-weight:700;margin-bottom:16px;
}
.section-desc{font-size:15px;color:var(--text2);line-height:1.8;max-width:600px;margin-bottom:32px}

/* === Hero === */
.hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:100px 24px 60px;
  background:radial-gradient(ellipse at 50% 20%, rgba(231,201,123,0.06), transparent 60%), var(--bg);
  position:relative;overflow:hidden;
}
.hero.has-bg::before{
  content:'';position:absolute;inset:0;
  background:url('../images/hero-bg.jpg') center center/cover no-repeat;
  opacity:0.35;z-index:0;
}
.hero.has-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(15,13,18,0.3) 0%, rgba(15,13,18,0.6) 100%);
  z-index:1;
}
.hero.has-bg>*{position:relative;z-index:2}
.hero-badge{
  font-family:'Cinzel',serif;font-size:11px;letter-spacing:4px;
  color:var(--gold-dim);margin-bottom:20px;text-transform:uppercase;
}
.hero h1{
  font-family:'Cinzel',serif;font-size:40px;font-weight:900;margin-bottom:12px;
  background:linear-gradient(135deg,var(--gold),#f5e3a8,var(--gold));background-size:200% auto;
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  animation:hShine 4s ease-in-out infinite;
}
@keyframes hShine{0%{background-position:0% center}50%{background-position:100% center}100%{background-position:0% center}}
.hero-sub{
  font-family:'Cormorant Garamond',serif;font-size:20px;font-style:italic;
  color:rgba(231,201,123,0.6);margin-bottom:12px;
}
.hero-desc{font-size:15px;color:var(--text2);max-width:500px;line-height:1.8;margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.btn{
  display:inline-block;font-family:'Cinzel',serif;font-size:14px;font-weight:700;letter-spacing:1.5px;
  border:none;border-radius:999px;padding:14px 32px;cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;
}
.btn:hover{transform:scale(1.04)}
.btn-primary{
  background:linear-gradient(135deg,var(--gold),#d4a853);color:var(--bg);
}
.btn-outline{
  background:transparent;border:1px solid rgba(231,201,123,0.3);color:var(--gold);
}
.btn-ghost{
  background:transparent;border:1px solid rgba(231,201,123,0.12);color:var(--text2);
  font-size:12px;padding:10px 24px;
}

/* === Value Cards === */
.value-grid{display:grid;gap:20px}
@media(min-width:768px){.value-grid{grid-template-columns:repeat(3,1fr)}}
.value-card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
  padding:32px 24px;text-align:center;transition:border-color 0.3s;
}
.value-card:hover{border-color:rgba(231,201,123,0.25)}
.value-card .ico{font-size:32px;margin-bottom:12px;display:block}
.value-card h3{font-family:'Cinzel',serif;font-size:15px;color:var(--gold);margin-bottom:8px}
.value-card p{font-size:13px;color:var(--text2);line-height:1.7}

/* === Tools === */
.tool-hero{
  background:radial-gradient(ellipse at 30% 40%, rgba(231,201,123,0.05), transparent 60%), var(--bg);
  text-align:center;padding:60px 24px 40px;
}
.tool-form{max-width:480px;margin:0 auto;padding:0 24px}
.tool-form label{display:block;font-size:13px;color:var(--text2);margin-bottom:4px;margin-top:20px}
.tool-form input,.tool-form select{
  width:100%;padding:14px 18px;border-radius:var(--radius-sm);
  border:1px solid var(--card-border);background:var(--card);color:var(--ink);
  font-size:15px;font-family:'Inter',sans-serif;outline:none;
  transition:border-color 0.2s;-webkit-appearance:none;
}
.tool-form input:focus,.tool-form select:focus{border-color:var(--gold)}
.tool-form .row2{display:grid;grid-template-columns:2fr 1fr;gap:12px}
.tool-form .btn{width:100%;margin-top:24px}

/* === BAZI Display === */
.bazi-result{margin-top:32px;padding:0 24px;max-width:520px;margin-left:auto;margin-right:auto}
.bazi-card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
  padding:28px 24px;margin-bottom:20px;
}
.bazi-card h3{font-family:'Cinzel',serif;font-size:14px;color:var(--gold);margin-bottom:12px;letter-spacing:1px;text-transform:uppercase}
.bazi-pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:16px}
.pillar{text-align:center;padding:16px 8px;border-radius:var(--radius-sm);background:rgba(255,255,255,0.03)}
.pillar .stem{font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;display:block}
.pillar .branch{font-size:13px;color:var(--text2);margin-top:4px;display:block}
.pillar .label{font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:1px;margin-top:6px;display:block}

/* === Wuxing Bars === */
.wx-bars{display:flex;flex-direction:column;gap:10px}
.wx-row{display:flex;align-items:center;gap:10px}
.wx-label{width:50px;font-size:11px;font-weight:500;color:var(--text2);text-transform:uppercase;text-align:right;flex-shrink:0}
.wx-track{flex:1;height:24px;border-radius:999px;background:rgba(255,255,255,0.04);overflow:hidden}
.wx-fill{height:100%;border-radius:999px;transition:width 0.8s ease;display:flex;align-items:center;padding-left:10px}
.wx-fill span{font-size:10px;font-weight:700;color:var(--ink);opacity:0.9}
.wx-val{width:30px;font-size:12px;font-weight:700;text-align:right;color:var(--text2)}

/* === XiYong Display === */
.xy-grid{display:grid;gap:16px}
@media(min-width:600px){.xy-grid{grid-template-columns:1fr 1fr}}
.xy-card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
  padding:24px 20px;text-align:center;
}
.xy-card .xy-tag{font-family:'Cinzel',serif;font-size:11px;letter-spacing:2px;color:var(--gold-dim);text-transform:uppercase}
.xy-card .xy-el{font-family:'Cinzel',serif;font-size:28px;font-weight:900;margin:8px 0}
.xy-card .xy-desc{font-size:13px;color:var(--text2);line-height:1.6}
.xy-colors{display:flex;gap:6px;justify-content:center;margin-top:12px;flex-wrap:wrap}
.xy-color-swatch{
  width:28px;height:28px;border-radius:50%;border:2px solid rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
}
.xy-gems{display:flex;gap:8px;justify-content:center;margin-top:10px;flex-wrap:wrap}
.xy-gem{
  padding:4px 10px;border-radius:999px;font-size:10px;font-weight:500;
  background:rgba(255,255,255,0.06);color:var(--text2);
}

/* === Taboo === */
.taboo-list{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.taboo-tag{padding:4px 12px;border-radius:999px;font-size:11px;font-weight:500}

/* === Sections bg === */
.bg-alt{background:var(--bg2)}
.highlight-section{
  text-align:center;padding:80px 24px;
  background:radial-gradient(ellipse at center, rgba(231,201,123,0.04), transparent 70%), var(--bg);
}
.highlight-section h2{font-family:'Cinzel',serif;font-size:24px;margin-bottom:12px}
.highlight-section p{color:var(--text2);font-size:15px;max-width:400px;margin:0 auto 24px}

/* === Animations === */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* === Learn === */
.learn-grid{display:grid;gap:16px;max-width:640px;margin:0 auto}
.learn-card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
  padding:24px;
  cursor:pointer;transition:border-color 0.2s;
}
.learn-card:hover{border-color:rgba(231,201,123,0.2)}
.learn-card h3{font-family:'Cinzel',serif;font-size:15px;color:var(--gold);margin-bottom:8px}
.learn-card .preview{font-size:13px;color:var(--text2);line-height:1.6}
.learn-card .full{font-size:14px;color:var(--text2);line-height:1.8;margin-top:12px;display:none}
.learn-card.open .full{display:block}

/* === Footer === */
footer{
  padding:48px 24px;text-align:center;border-top:1px solid var(--card-border);
}
footer .fb{font-family:'Cinzel',serif;font-size:14px;color:var(--gold-dim);margin-bottom:8px}
footer p{font-size:12px;color:var(--text3);line-height:1.8}

/* === Mobile Nav === */
@media(max-width:640px){
  .nav-links{display:none;position:fixed;top:58px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px 24px;gap:12px;border-bottom:1px solid var(--card-border)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .hero h1{font-size:30px}
  .section-title{font-size:24px}
  section{padding:60px 0}
  .bazi-pillars{gap:6px}
  .pillar{padding:12px 4px}
  .pillar .stem{font-size:18px}
}

/* === Cart Icon === */
.cart-icon{position:relative;color:var(--text3);transition:color 0.2s;display:flex;align-items:center}
.cart-icon:hover{color:var(--gold)}
.cart-badge{
  position:absolute;top:-6px;right:-8px;min-width:16px;height:16px;border-radius:8px;
  background:var(--fire);color:var(--ink);font-size:9px;font-weight:700;
  display:flex;align-items:center;justify-content:center;padding:0 4px;
}

/* === Cart Drawer === */
.cart-overlay{
  display:none;position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,0.5);backdrop-filter:blur(4px);
}
.cart-drawer{
  position:fixed;top:0;right:0;bottom:0;width:100%;max-width:380px;
  z-index:201;background:var(--bg2);border-left:1px solid var(--card-border);
  transform:translateX(100%);transition:transform 0.3s ease;
  display:flex;flex-direction:column;
}
.cart-drawer.open{transform:translateX(0)}
.cart-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 20px;border-bottom:1px solid var(--card-border);
  font-family:'Cinzel',serif;font-size:16px;color:var(--gold);
}
.cart-close{background:none;border:none;color:var(--text3);font-size:20px;cursor:pointer;padding:4px}
.cart-close:hover{color:var(--gold)}
.cart-body{flex:1;overflow-y:auto;padding:16px 20px}
.cart-empty{text-align:center;padding:60px 0;color:var(--text2)}

/* Cart Items */
.cart-item{
  display:flex;align-items:center;gap:10px;
  padding:12px 0;border-bottom:1px solid rgba(255,255,255,0.04);
}
.cart-item-info{flex:1;display:flex;align-items:center;gap:8px;min-width:0}
.cart-el-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.cart-item-name{font-size:13px;font-weight:500;color:var(--ink)}
.cart-item-element{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:1px}
.cart-item-qty{display:flex;align-items:center;gap:6px}
.cart-qty-btn{
  width:24px;height:24px;border-radius:50%;border:1px solid var(--card-border);
  background:transparent;color:var(--text2);font-size:14px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.cart-qty-btn:hover{color:var(--gold);border-color:var(--gold)}
.cart-qty-val{font-size:13px;font-weight:500;color:var(--ink);min-width:16px;text-align:center}
.cart-item-total{font-size:13px;font-weight:600;color:var(--gold);width:50px;text-align:right}
.cart-item-remove{background:none;border:none;color:var(--text3);font-size:14px;cursor:pointer;padding:4px}
.cart-item-remove:hover{color:var(--fire)}

/* Cart Total */
.cart-total{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 0 8px;font-family:'Cinzel',serif;font-size:18px;color:var(--gold);
  border-top:1px solid var(--card-border);margin-top:12px;
}