/* ===== Vibe-Trading Stylesheet ===== */
:root{
  --bg:#0d1117;--surface:#161b22;--surface2:#1c2333;--surface3:#252e42;
  --border:#2d3548;--border-light:#3d4759;
  --primary:#6366f1;--primary-light:#818cf8;--primary-dark:#4f46e5;
  --up:#f43f5e;--up-bg:rgba(244,63,94,.12);--up-border:rgba(244,63,94,.3);
  --down:#22c55e;--down-bg:rgba(34,197,94,.12);--down-border:rgba(34,197,94,.3);
  --amber:#f59e0b;--blue:#3b82f6;--purple:#a855f7;
  --text:#e2e8f0;--text-2:#94a3b8;--text-muted:#64748b;
  --radius:12px;--radius-sm:8px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"SF Mono","Fira Code","Consolas",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;font-size:14px}
a{color:var(--primary-light);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary)}
ul{padding-left:20px}li{margin-bottom:6px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* ===== Navbar ===== */
.navbar{position:sticky;top:0;z-index:100;background:rgba(13,17,23,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-container{max-width:1200px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.nav-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--text)}
.nav-logo{font-size:22px}
.nav-name .accent{color:var(--primary)}
.nav-links{display:flex;gap:4px}
.nav-link{padding:8px 16px;font-size:14px;color:var(--text-2);border-radius:var(--radius-sm);transition:all .15s}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.active{color:var(--primary-light);background:var(--surface)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer}

/* ===== Hero ===== */
.hero{position:relative;padding:60px 24px 48px;text-align:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(99,102,241,.12),transparent 60%),radial-gradient(ellipse at 30% 50%,rgba(168,85,247,.08),transparent 50%)}
.hero-content{position:relative;max-width:700px;margin:0 auto}
.hero-badge{display:inline-block;padding:4px 14px;border-radius:20px;background:var(--surface);border:1px solid var(--border-light);font-size:12px;color:var(--primary-light);margin-bottom:20px}
.hero-title{font-size:36px;font-weight:800;margin-bottom:16px;line-height:1.3}
.gradient-text{background:linear-gradient(135deg,var(--primary),var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:15px;color:var(--text-2);margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ===== Buttons ===== */
.btn{padding:10px 22px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .2s;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(99,102,241,.35)}
.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border-light)}
.btn-secondary:hover{background:var(--surface2)}
.btn-sm{padding:4px 12px;font-size:12px;border-radius:6px;background:var(--surface2);color:var(--primary-light);border:1px solid var(--border)}
.btn-sm:hover{background:var(--surface3)}

/* ===== Section ===== */
.section{max-width:1200px;margin:0 auto;padding:32px 24px}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:8px}
.section-title{font-size:20px;font-weight:700;color:var(--text)}
.section-time{font-size:12px;color:var(--text-muted)}
.section-more{font-size:13px;color:var(--primary-light)}

/* ===== Index Cards ===== */
.index-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.index-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:all .2s}
.index-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2)}
.index-card.up{border-left:3px solid var(--up)}
.index-card.down{border-left:3px solid var(--down)}
.index-name{font-size:14px;color:var(--text-2);margin-bottom:8px}
.index-price{font-size:28px;font-weight:700;font-family:var(--mono);color:var(--text)}
.index-change{font-size:14px;margin-top:4px;font-family:var(--mono)}
.index-card.up .index-change{color:var(--up)}
.index-card.down .index-change{color:var(--down)}
.change-arrow{font-size:12px}
.index-volume{font-size:12px;color:var(--text-muted);margin-top:8px}

/* ===== Colors ===== */
.text-up{color:var(--up)!important}
.text-down{color:var(--down)!important}
.muted{color:var(--text-muted)}
.ta-r{text-align:right}
.ta-c{text-align:center}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.stock-table{width:100%;border-collapse:collapse;font-size:13.5px}
.stock-table th{background:var(--surface2);padding:12px 16px;text-align:left;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--border);white-space:nowrap}
.stock-table td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text)}
.stock-table tbody tr:hover{background:var(--surface2)}
.stock-table tbody tr:last-child td{border-bottom:none}
.stock-code{font-family:var(--mono);font-size:12.5px;color:var(--text-muted)}
.stock-name{font-weight:500}
.rank{color:var(--text-muted);font-weight:600;text-align:center}

/* ===== Pct Badge ===== */
.pct-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:600;font-family:var(--mono)}
.pct-up{background:var(--up-bg);color:var(--up)}
.pct-down{background:var(--down-bg);color:var(--down)}

/* ===== AI Comment ===== */
.ai-comment-card{background:linear-gradient(135deg,rgba(99,102,241,.06),rgba(168,85,247,.04));border:1px solid rgba(99,102,241,.2);border-radius:var(--radius);padding:20px 24px}
.ai-comment-header{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.ai-avatar{font-size:24px}
.ai-name{font-weight:600;color:var(--primary-light)}
.ai-time{font-size:12px;color:var(--text-muted);margin-left:auto}
.ai-comment-body{font-size:14px;color:var(--text);line-height:1.8}

/* ===== Badge ===== */
.badge{display:inline-block;padding:2px 10px;border-radius:4px;font-size:11px;font-weight:600}
.badge-ai{background:rgba(99,102,241,.15);color:var(--primary-light)}

/* ===== Feature Grid ===== */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .2s}
.feature-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.feature-icon{font-size:32px;margin-bottom:12px}
.feature-card h3{font-size:16px;font-weight:600;margin-bottom:8px;color:var(--text)}
.feature-card p{font-size:13px;color:var(--text-2)}

/* ===== Sector Grid ===== */
.sector-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.sector-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;transition:all .2s}
.sector-card:hover{border-color:var(--border-light)}
.sector-card.up{border-left:3px solid var(--up)}
.sector-card.down{border-left:3px solid var(--down)}
.sector-name{font-size:14px;font-weight:500;margin-bottom:6px}
.sector-change{font-size:18px;font-weight:700;font-family:var(--mono)}
.sector-leader{font-size:11px;color:var(--text-muted);margin-top:6px}

/* ===== Analysis Page ===== */
.analysis-search{margin-bottom:24px}
.search-box{display:flex;gap:8px}
.search-box input{flex:1;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;outline:none;transition:border-color .2s}
.search-box input:focus{border-color:var(--primary)}
.search-results{margin-top:12px}
.sr-item{padding:14px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;transition:all .2s;position:relative;overflow:hidden}
.sr-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .2s}
.sr-item:hover{border-color:var(--primary);background:var(--surface2);transform:translateX(4px);box-shadow:0 4px 16px rgba(99,102,241,.12)}
.sr-item:hover::before{background:var(--primary)}
.sr-item:active{transform:translateX(2px)}
.sr-arrow{color:var(--text-muted);font-size:18px;transition:all .2s;margin-left:8px}
.sr-item:hover .sr-arrow{color:var(--primary-light);transform:translateX(3px)}
.sr-hint{font-size:11px;color:var(--text-muted);background:var(--surface2);padding:2px 8px;border-radius:4px;margin-left:8px;white-space:nowrap;transition:all .2s}
.sr-item:hover .sr-hint{background:rgba(99,102,241,.15);color:var(--primary-light)}
.sr-name{font-size:16px;font-weight:600;color:var(--text)}
.sr-code{font-size:12.5px;color:var(--text-muted);margin-left:8px;font-family:var(--mono)}
.sr-price{text-align:right}
.sr-price .val{font-size:18px;font-weight:700;font-family:var(--mono)}
.sr-empty{text-align:center;padding:32px;color:var(--text-muted);font-size:14px}

/* Stock Info Panel */
.stock-info-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.stock-info-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.stock-info-name{font-size:22px;font-weight:700;color:var(--text)}
.stock-info-code{font-size:14px;color:var(--text-muted);margin-left:8px}
.stock-info-price{display:flex;align-items:baseline;gap:12px}
.price-big{font-size:32px;font-weight:700;font-family:var(--mono)}
.change-text{font-size:16px;font-family:var(--mono)}
.stock-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.info-item{background:var(--surface2);padding:10px 14px;border-radius:var(--radius-sm)}
.info-label{font-size:11px;color:var(--text-muted);margin-bottom:2px}
.info-value{font-size:15px;font-weight:600;font-family:var(--mono);color:var(--text)}

/* Analysis Result */
.analysis-result{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.result-header{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.result-header h3{font-size:18px;font-weight:600}
.result-body{font-size:14px;line-height:1.8;color:var(--text)}
.result-body h1,.result-body h2,.result-body h3{margin-top:16px;margin-bottom:8px;color:var(--text)}
.result-body h1{font-size:20px}.result-body h2{font-size:18px}.result-body h3{font-size:16px}
.result-body p{margin-bottom:10px;color:var(--text-2)}
.result-body ul,.result-body ol{margin-bottom:10px;color:var(--text-2)}
.result-body strong{color:var(--text)}
.result-body code{background:var(--surface3);padding:2px 6px;border-radius:4px;font-size:12px}

/* Loading */
.loading-state{text-align:center;padding:48px 24px}
.loading-spinner{width:48px;height:48px;border:4px solid var(--surface3);border-top-color:var(--primary);border-radius:50%;margin:0 auto 16px;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Empty State */
.empty-state{text-align:center;padding:32px;color:var(--text-muted)}
.empty-state-large{text-align:center;padding:60px 24px}
.empty-icon{font-size:56px;margin-bottom:16px}
.empty-state-large h3{font-size:20px;margin-bottom:8px;color:var(--text)}
.empty-state-large p{color:var(--text-2);margin-bottom:20px}
.quick-stocks{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center}
.quick-label{font-size:13px;color:var(--text-muted)}
.chip{padding:6px 14px;border-radius:20px;background:var(--surface);border:1px solid var(--border);color:var(--text-2);font-size:13px;cursor:pointer;transition:all .15s}
.chip:hover{border-color:var(--primary);color:var(--primary-light);background:var(--surface2)}

/* Chat */
.chat-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.chat-messages{max-height:400px;overflow-y:auto;margin-bottom:16px}
.chat-msg{margin-bottom:12px;display:flex;gap:10px}
.chat-msg.user{flex-direction:row-reverse}
.chat-avatar{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.chat-msg.user .chat-avatar{background:var(--primary)}
.chat-msg.ai .chat-avatar{background:var(--purple)}
.chat-bubble{max-width:75%;padding:10px 14px;border-radius:var(--radius-sm);font-size:14px;line-height:1.6}
.chat-msg.user .chat-bubble{background:var(--primary);color:#fff}
.chat-msg.ai .chat-bubble{background:var(--surface2);color:var(--text)}
.chat-input-box{display:flex;gap:8px}
.chat-input-box input{flex:1;padding:10px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;outline:none}
.chat-input-box input:focus{border-color:var(--primary)}

/* About */
.about-page{max-width:800px;margin:0 auto;padding:32px 24px}
.about-hero{text-align:center;margin-bottom:32px}
.about-title{font-size:32px;font-weight:800;margin-bottom:8px}
.about-tagline{font-size:16px;color:var(--text-2)}
.about-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px}
.about-card h3{font-size:17px;font-weight:600;margin-bottom:12px;color:var(--text)}
.about-card p,.about-card li{font-size:14px;color:var(--text-2)}
.about-card strong{color:var(--text)}
.about-warning{border-color:rgba(245,158,11,.3);background:rgba(245,158,11,.04)}
.about-links{display:flex;gap:12px;justify-content:center;margin-top:24px}

/* Footer */
.footer{border-top:1px solid var(--border);background:var(--surface);padding:32px 24px;text-align:center}
.footer-content{max-width:600px;margin:0 auto}
.footer-brand{font-size:18px;font-weight:700;margin-bottom:8px}
.footer-desc{font-size:13px;color:var(--text-2);margin-bottom:8px}
.footer-disclaimer{font-size:12px;color:var(--text-muted);margin-bottom:8px}
.footer-copy{font-size:12px;color:var(--text-muted)}

/* ===== Responsive ===== */
@media(max-width:768px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--border);padding:8px}
  .nav-links.show{display:flex}
  .nav-link{padding:12px 16px}
  .hero-title{font-size:26px}
  .hero-subtitle{font-size:14px}
  .index-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .sector-grid{grid-template-columns:repeat(2,1fr)}
  .stock-table{font-size:12px}
  .stock-table th,.stock-table td{padding:8px 10px}
  .search-box{flex-direction:column}
  .section{padding:20px 16px}
  .hero{padding:40px 16px 32px}
}
@media(max-width:480px){
  .index-grid{grid-template-columns:1fr}
  .sector-grid{grid-template-columns:1fr}
  .hero-title{font-size:22px}
  .about-title{font-size:24px}
}