/* ========================================
   CoinHer Design System (ch- prefix)
   Theme: Warm Pink + Lavender + Cream
   Font: Outfit
======================================== */

/* ---------- CSS Variables ---------- */
:root,
[data-theme="light"] {
  --bg-primary: #FFF8F6;
  --bg-secondary: #FFF0ED;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFF5F2;
  --text-primary: #2D1B2E;
  --text-secondary: #6B4C6E;
  --text-muted: #A88DAB;
  --border: #F0D6E8;
  --border-hover: #E8B4D8;

  --ch-pink: #E8618C;
  --ch-pink-light: #FFF0F5;
  --ch-lavender: #9B72CF;
  --ch-lavender-light: #F5F0FF;
  --ch-coral: #FF8A7A;
  --ch-mint: #6EC8A0;
  --ch-amber: #F0A040;
  --ch-red: #D94452;
  --ch-red-light: rgba(217,68,82,0.08);

  --gradient: linear-gradient(135deg, #E8618C 0%, #9B72CF 50%, #6EC8A0 100%);
  --gradient-card: linear-gradient(135deg, rgba(232,97,140,0.05), rgba(155,114,207,0.05));
  --shadow-sm: 0 2px 8px rgba(45,27,46,0.06);
  --shadow-md: 0 4px 20px rgba(45,27,46,0.08);
  --shadow-lg: 0 8px 40px rgba(45,27,46,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
}

[data-theme="dark"] {
  --bg-primary: #1A0E1E;
  --bg-secondary: #231428;
  --bg-card: #2A1830;
  --bg-card-hover: #341E3C;
  --text-primary: #F5E8F0;
  --text-secondary: #C4A8C8;
  --text-muted: #8E6E92;
  --border: #3E2844;
  --border-hover: #5A3860;

  --ch-pink: #F07BA0;
  --ch-lavender: #B490E0;
  --ch-pink-light: rgba(240,123,160,0.1);
  --ch-lavender-light: rgba(180,144,224,0.1);
  --ch-red-light: rgba(217,68,82,0.12);

  --gradient: linear-gradient(135deg, #F07BA0 0%, #B490E0 50%, #7EDAB0 100%);
  --gradient-card: linear-gradient(135deg, rgba(240,123,160,0.08), rgba(180,144,224,0.08));
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Outfit',system-ui,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh}
a{color:var(--ch-pink);text-decoration:none;transition:color .2s}
a:hover{color:var(--ch-lavender)}
img{max-width:100%;height:auto;display:block}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 14px;border:1px solid var(--border);text-align:left;font-size:14px}
th{background:var(--bg-secondary);font-weight:600}
.table-wrap{overflow-x:auto;margin:16px 0;border-radius:var(--radius-sm)}

/* ---------- Disclaimer Banner ---------- */
.ch-disclaimer{background:var(--ch-pink-light);border-bottom:1px solid var(--border);padding:8px 24px;font-size:12px;color:var(--text-secondary);text-align:center}
.ch-disclaimer strong{color:var(--ch-pink)}

/* ---------- Topbar ---------- */
.ch-topbar{display:flex;align-items:center;gap:16px;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg-card);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
.ch-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text-primary);text-decoration:none}
.ch-brand img{width:36px;height:36px;border-radius:50%;object-fit:cover;flex-shrink:0}
.ch-brand-tag{display:block;font-size:11px;font-weight:400;color:var(--text-muted)}
.ch-nav{display:flex;gap:6px;margin-left:auto}
.ch-nav a{padding:6px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);transition:all .2s}
.ch-nav a:hover,.ch-nav a.active{background:var(--ch-pink-light);color:var(--ch-pink)}
.ch-tools{display:flex;gap:8px;align-items:center}
.ch-theme{background:none;border:1px solid var(--border);border-radius:8px;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0;cursor:pointer;font-size:16px;transition:all .2s}
.ch-theme:hover{border-color:var(--ch-pink);background:var(--ch-pink-light)}

/* Language Switcher (native <details>, no JS) */
.ch-lang{position:relative}
.ch-lang>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:5px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:8px 12px;min-height:44px;font-size:13px;color:var(--text-primary);user-select:none}
.ch-lang>summary::-webkit-details-marker{display:none}
.ch-lang>summary::marker{content:""}
.ch-lang>summary:hover,.ch-lang[open]>summary{border-color:var(--ch-pink);color:var(--ch-pink)}
.ch-lang-menu{position:absolute;top:100%;right:0;margin-top:6px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);z-index:200;min-width:178px;overflow:hidden;padding:4px}
.ch-lang-menu a{display:block;padding:12px 14px;border-radius:8px;font-size:13px;color:var(--text-secondary)}
.ch-lang-menu a:hover{background:var(--ch-pink-light);color:var(--ch-pink)}
.ch-lang-menu a[aria-current="page"]{background:var(--ch-pink-light);color:var(--ch-pink);font-weight:600}

/* Breadcrumb */
.crumb{max-width:800px;margin:0 auto;padding:16px 24px 0;font-size:12.5px;color:var(--text-muted);display:flex;gap:7px;flex-wrap:wrap;align-items:center;line-height:1.5}
.crumb a{color:var(--text-secondary)}
.crumb a:hover{color:var(--ch-pink)}
.crumb .crumb-sep{opacity:.55}
.crumb .crumb-cur{color:var(--text-muted)}

/* Article byline */
.article-meta{max-width:800px;margin:-12px auto 8px;padding:0 24px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-muted)}
.article-meta a{color:var(--text-secondary);font-weight:600}
.article-meta a:hover{color:var(--ch-pink)}
.article-meta .am-dot{opacity:.5}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:60px 24px 48px;max-width:1200px;margin:0 auto}
.hero-badge{display:inline-block;background:var(--gradient-card);border:1px solid var(--border);border-radius:20px;padding:6px 16px;font-size:13px;font-weight:500;color:var(--ch-pink);margin-bottom:16px}
.hero h1{font-size:clamp(28px,4vw,42px);line-height:1.2;font-weight:800;margin-bottom:16px}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:var(--text-secondary);font-size:16px;line-height:1.8;margin-bottom:24px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* Life Scene Panel */
.scene-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm)}
.scene-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.scene-title{font-weight:700;font-size:16px}
.scene-badge{font-size:11px;padding:4px 10px;border-radius:12px;background:var(--ch-lavender-light);color:var(--ch-lavender);font-weight:500}
.scene-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.scene-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;text-align:center;transition:all .3s}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--ch-pink)}
.scene-icon{font-size:28px;margin-bottom:8px}
.scene-name{font-weight:600;font-size:14px;margin-bottom:4px}
.scene-desc{font-size:12px;color:var(--text-muted)}
.scene-tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:6px;margin-top:6px;font-weight:500}
.scene-tag.shop{background:#FFF0E0;color:#E08030}
.scene-tag.game{background:#E0F0FF;color:#4080D0}
.scene-tag.invest{background:#E8FFE8;color:#40A060}
.scene-tag.send{background:#FFE8F0;color:#D04060}

/* ---------- Domain Guard (homepage outbound, anti-phishing, §21.5) ---------- */
.dg-card{background:var(--bg-card);border:1px solid var(--border-hover);border-radius:var(--radius-lg);padding:22px 22px 18px;box-shadow:var(--shadow-sm)}
.dg-head{display:flex;align-items:center;gap:8px;margin-bottom:5px}
.dg-eye{font-size:18px;line-height:1;flex-shrink:0}
.dg-t{font-size:15px;font-weight:700;color:var(--text-primary);line-height:1.35}
.dg-chip{margin-left:auto;font-size:11px;font-weight:600;padding:3px 10px;border-radius:999px;background:rgba(110,200,160,.16);color:#2f8d63;white-space:nowrap;flex-shrink:0}
[data-theme="dark"] .dg-chip{color:#8fe3bd;background:rgba(110,200,160,.14)}
.dg-sub{font-size:12.5px;color:var(--text-secondary);line-height:1.6;margin-bottom:14px}
.dg-list{display:flex;flex-direction:column;gap:7px;margin-bottom:13px}
.dg-row{display:flex;align-items:center;gap:9px;flex-wrap:wrap;padding:9px 12px;border-radius:10px}
.dg-mark{font-weight:800;flex-shrink:0}
.dg-url{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;word-break:break-all}
.dg-tag{margin-left:auto;font-size:10.5px;font-weight:600;white-space:nowrap}
.dg-real{background:rgba(110,200,160,.12);border:1px solid rgba(110,200,160,.5)}
.dg-real .dg-mark{color:#2f8d63}
.dg-real .dg-url{color:var(--text-primary);font-weight:700}
.dg-real .dg-tag{color:#2f8d63}
.dg-fake{background:var(--bg-secondary);border:1px solid var(--border)}
.dg-fake .dg-mark{color:var(--ch-red)}
.dg-fake .dg-url{color:var(--text-muted);text-decoration:line-through;text-decoration-color:var(--ch-red)}
.dg-fake .dg-tag{color:var(--ch-red);font-weight:500}
.dg-note{font-size:11.5px;color:var(--text-secondary);line-height:1.6;margin-bottom:14px}
.dg-note strong{color:var(--ch-pink);font-weight:700}
.dg-foot{display:flex;flex-wrap:wrap;align-items:center;gap:7px 16px;padding-top:13px;border-top:1px solid var(--border);font-size:12px;color:var(--text-secondary)}
.dg-k{color:var(--text-muted)}
.dg-code{font-family:ui-monospace,Menlo,Consolas,monospace;background:var(--ch-lavender-light);color:var(--ch-lavender);padding:2px 8px;border-radius:6px;font-weight:700;font-size:12px;letter-spacing:.03em}
.dg-cta{display:block;width:100%;text-align:center;margin-top:13px}
.dg-disc{font-size:10.5px;color:var(--text-muted);line-height:1.55;margin-top:10px}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:12px 24px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;transition:all .3s;cursor:pointer;text-align:center;border:none;font-family:inherit}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 16px rgba(232,97,140,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(232,97,140,0.4);color:#fff}
.btn-outline{border:2px solid var(--ch-pink);color:var(--ch-pink);background:transparent}
.btn-outline:hover{background:var(--ch-pink-light);color:var(--ch-pink)}

/* ---------- Flow Strip ---------- */
.flow-strip{display:flex;justify-content:center;align-items:center;gap:12px;padding:24px;flex-wrap:wrap}
.flow-step{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 20px;font-size:14px;font-weight:500;display:flex;align-items:center;gap:8px;transition:all .3s}
.flow-step:hover{border-color:var(--ch-pink);transform:translateY(-2px)}
.flow-arrow{color:var(--ch-pink);font-size:18px}

/* ---------- Section ---------- */
.ch-wrap{max-width:1200px;margin:0 auto;padding:0 24px 60px}
.sec-header{text-align:center;padding:40px 0 24px}
.sec-header h2{font-size:24px;font-weight:700}

/* ---------- Path Grid ---------- */
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.path-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-decoration:none;color:var(--text-primary);transition:all .3s;display:block}
.path-card:hover{border-color:var(--ch-pink);transform:translateY(-4px);box-shadow:var(--shadow-md);color:var(--text-primary)}
.path-num{font-size:32px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:12px}
.path-card h3{font-size:17px;margin-bottom:8px;font-weight:700}
.path-card p{font-size:14px;color:var(--text-secondary);line-height:1.6}

/* ---------- Guide Grid ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-bottom:40px}
.guide-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--text-primary);transition:all .3s;display:block}
.guide-card:hover{border-color:var(--ch-pink);transform:translateY(-3px);box-shadow:var(--shadow-sm);color:var(--text-primary)}
.guide-icon{font-size:28px;margin-bottom:12px}
.guide-card h3{font-size:16px;margin-bottom:6px;font-weight:600}
.guide-card p{font-size:13px;color:var(--text-secondary);line-height:1.6}
.read-more{display:inline-block;margin-top:10px;font-size:13px;color:var(--ch-pink);font-weight:500}

/* ---------- Stats Bar ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:32px 0}
.stat-box{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}
.stat-num{font-size:28px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:4px}

/* ---------- Bottom Grid (FAQ + Warnings) ---------- */
.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.bottom-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.bottom-card h3{margin-bottom:16px;font-size:18px}
.ch-faq{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.ch-faq:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.ch-faq-q{font-weight:600;font-size:14px;margin-bottom:6px;color:var(--text-primary)}
.ch-faq-a{font-size:13px;color:var(--text-secondary);line-height:1.7}

/* ---------- Guide Page ---------- */
.guide-hero{max-width:800px;margin:0 auto;padding:48px 24px 32px;text-align:center}
.guide-hero h1{font-size:clamp(24px,3.5vw,36px);font-weight:800;margin-bottom:16px;line-height:1.3}
.guide-hero h1 small{display:block;font-size:.56em;font-weight:500;line-height:1.5;color:var(--text-secondary);margin-top:10px}
.guide-hero p{color:var(--text-secondary);font-size:15px;max-width:640px;margin:0 auto}
.badge{display:inline-block;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:500;background:var(--ch-pink-light);color:var(--ch-pink);margin-bottom:16px}

.docs-layout{display:grid;grid-template-columns:220px 1fr;gap:32px;max-width:1100px;margin:0 auto;padding:0 24px 60px}
.docs-sidebar{position:sticky;top:80px;align-self:start}
.toc h4{font-size:13px;color:var(--text-muted);margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}
.toc ul{list-style:none;padding:0}
.toc li{margin-bottom:6px}
.toc a{font-size:13px;color:var(--text-secondary);padding:4px 8px;border-radius:6px;display:block;transition:all .2s}
.toc a:hover{background:var(--ch-pink-light);color:var(--ch-pink)}
.docs-content{min-width:0}
.lead{font-size:16px;color:var(--text-secondary);line-height:1.8;margin-bottom:32px;padding:20px;background:var(--gradient-card);border-radius:var(--radius);border:1px solid var(--border)}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:24px}
.step-card h2{font-size:20px;margin-bottom:16px;font-weight:700}
.step-card h3{font-size:16px;margin:16px 0 8px;font-weight:600}
.step-card ul,.step-card ol{padding-left:20px;margin:12px 0}
.step-card li{margin-bottom:8px;font-size:14px;line-height:1.7;color:var(--text-secondary)}
.step-card p{font-size:14px;line-height:1.8;color:var(--text-secondary);margin-bottom:12px}
.checklist{list-style:none;padding:0}
.checklist li{padding:8px 0 8px 28px;position:relative;font-size:14px;border-bottom:1px dashed var(--border)}
.checklist li::before{content:"☑";position:absolute;left:0;color:var(--ch-pink);font-size:16px}

/* Timeline */
.timeline{padding-left:24px;border-left:3px solid var(--ch-pink)}
.tl-item{padding:16px 0 16px 20px;position:relative}
.tl-item::before{content:"";position:absolute;left:-30px;top:22px;width:12px;height:12px;background:var(--ch-pink);border-radius:50%;border:3px solid var(--bg-primary)}
.tl-year{font-size:12px;color:var(--ch-lavender);font-weight:600;margin-bottom:4px}
.tl-event{font-weight:700;font-size:15px;margin-bottom:4px}
.tl-desc{font-size:13px;color:var(--text-secondary);line-height:1.7}

/* ---------- Footer ---------- */
.ch-footer{text-align:center;padding:32px 24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.ch-legal-row{display:flex;justify-content:center;gap:16px;margin-top:8px;flex-wrap:wrap}
.ch-legal-row a{color:var(--text-muted);font-size:12px}
.ch-legal-row a:hover{color:var(--ch-pink)}

/* ---------- Trust & Domain ---------- */
.ch-domain{position:fixed;bottom:8px;right:12px;font-size:10px;color:var(--text-muted);opacity:.5;pointer-events:none}
.ch-trust{max-width:800px;margin:0 auto;padding:20px 24px;font-size:11px;color:var(--text-muted);line-height:1.7;text-align:center}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;text-align:center}
  .hero-cta{justify-content:center}
  .docs-layout{grid-template-columns:1fr}
  .docs-sidebar{display:none}
  .path-grid{grid-template-columns:1fr}
  .bottom-grid{grid-template-columns:1fr}
  .scene-cards{grid-template-columns:1fr 1fr}
  .ch-nav{display:none}
}
@media(max-width:600px){
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .guide-grid{grid-template-columns:1fr}
  .scene-cards{grid-template-columns:1fr}
  .hero{padding:40px 20px 32px}
  .hero-cta .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}