/* EMOJI TOOLS - main.css */
:root {
  --bg-primary: #0a0a0f; --bg-secondary: #111118; --bg-card: #18181f; --bg-card-hover: #1e1e28; --bg-elevated: #222230;
  --accent: #ff6b35; --accent-hover: #ff8555; --accent-2: #4f8ef7;
  --text-primary: #ffffff; --text-secondary: #9999aa; --text-muted: #666677;
  --border: #2a2a3a; --border-light: #333344;
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 20px; --radius-xl: 28px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --font-emoji: "Noto Emoji", "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --font-sc: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-global: "Inter", var(--font-sc), sans-serif;
  --container-width: 1200px; --nav-height: 64px; --transition: 0.2s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-global);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{cursor:pointer;border:none;outline:none;font-family:inherit}
img{max-width:100%;display:block}
.container{max-width:var(--container-width);margin:0 auto;padding:0 24px}
.nav{position:sticky;top:0;z-index:100;background:rgba(10,10,15,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:var(--nav-height)}
.nav-inner{max-width:var(--container-width);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:32px}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;letter-spacing:-0.02em;transition:opacity var(--transition);flex-shrink:0}
.nav-logo:hover{opacity:0.8}
.logo-emoji{font-size:1.4rem}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{padding:8px 16px;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition)}
.nav-link:hover{color:var(--text-primary);background:var(--bg-card)}
.nav-link.active{color:var(--accent);background:rgba(255,107,53,0.1)}
.page{display:none}
.page.active{display:block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);font-size:0.95rem;font-weight:600;font-family:var(--font-global);transition:all var(--transition);cursor:pointer}
.btn-primary{background:var(--accent);color:white}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 16px rgba(255,107,53,0.3)}
.btn-ghost{background:transparent;color:var(--text-primary);border:1px solid var(--border-light)}
.btn-ghost:hover{background:var(--bg-card);border-color:var(--text-muted)}
.btn-lg{padding:14px 28px;font-size:1.05rem;border-radius:var(--radius-lg)}
.btn-full{width:100%}

/* ---- Hero ---- */
.hero{padding:80px 0 60px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(255,107,53,0.08) 0%,transparent 70%);pointer-events:none}
.hero-inner{max-width:720px;margin:0 auto;padding:0 24px;text-align:center}
.hero-badge{display:inline-block;padding:6px 16px;background:rgba(255,107,53,0.1);border:1px solid rgba(255,107,53,0.25);border-radius:100px;font-size:0.8rem;font-weight:600;color:var(--accent);margin-bottom:28px;letter-spacing:0.02em}
.hero-title{font-size:clamp(3rem,8vw,5.5rem);font-weight:900;line-height:1.05;letter-spacing:-0.03em;margin-bottom:24px}
.gradient-text{background:linear-gradient(135deg,#ff6b35,#ff9a6c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.15rem;color:var(--text-secondary);line-height:1.7;margin-bottom:40px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:60px}
.hero-stats{display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap}
.stat{text-align:center}
.stat-num{display:block;font-size:2rem;font-weight:900;color:var(--text-primary);letter-spacing:-0.02em}
.stat-label{font-size:0.85rem;color:var(--text-muted);font-weight:500}
.stat-divider{width:1px;height:40px;background:var(--border)}
.section-title{font-size:1.8rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:12px}
.section-desc{color:var(--text-secondary);margin-bottom:40px;font-size:1.05rem}
/* ---- Tools Grid ---- */
.tools-grid-section{padding:60px 0}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px}
.tool-card{display:flex;align-items:center;gap:20px;padding:28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);cursor:pointer;transition:all 0.25s ease}
.tool-card:hover{background:var(--bg-card-hover);border-color:var(--border-light);transform:translateY(-2px);box-shadow:var(--shadow)}
.tool-card:hover .tool-card-arrow{transform:translateX(4px)}
.tool-card-featured{background:linear-gradient(135deg,rgba(255,107,53,0.08),rgba(255,107,53,0.03));border-color:rgba(255,107,53,0.25)}
.tool-card-featured:hover{border-color:rgba(255,107,53,0.5);background:linear-gradient(135deg,rgba(255,107,53,0.12),rgba(255,107,53,0.05))}
.tool-card-icon{font-size:2.5rem;flex-shrink:0;line-height:1}
.tool-card-content{flex:1;min-width:0}
.tool-card-content h3{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.tool-card-content p{font-size:0.88rem;color:var(--text-secondary);line-height:1.5}
.tool-card-tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.tag{padding:3px 10px;border-radius:100px;font-size:0.72rem;font-weight:600;background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border)}
.tag-hot{background:rgba(255,107,53,0.15);color:var(--accent);border-color:rgba(255,107,53,0.3)}
.tag-core{background:rgba(79,142,247,0.15);color:var(--accent-2);border-color:rgba(79,142,247,0.3)}
.tool-card-arrow{font-size:1.2rem;color:var(--text-muted);transition:transform var(--transition);flex-shrink:0}
/* ---- Steps ---- */
.preview-section{padding:60px 0 100px}
.steps{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}
.step{display:flex;align-items:flex-start;gap:16px;padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);max-width:280px;flex:1}
.step-num{font-size:1.5rem;font-weight:900;color:var(--accent);opacity:0.6;flex-shrink:0;line-height:1}
.step-content h4{font-size:1rem;font-weight:700;margin-bottom:6px}
.step-content p{font-size:0.85rem;color:var(--text-secondary);line-height:1.5}
.step-arrow{font-size:1.5rem;color:var(--text-muted);flex-shrink:0}

/* ============================================ EMOJI KITCHEN ============================================ */
.kitchen-layout{display:grid;grid-template-columns:1fr 360px 1fr;min-height:calc(100vh - var(--nav-height))}
.picker-panel{background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}
.picker-panel:last-child{border-right:none;border-left:1px solid var(--border)}
.picker-header{padding:20px;border-bottom:1px solid var(--border);flex-shrink:0}
.picker-header h2{font-size:0.85rem;font-weight:700;margin-bottom:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.05em}
.picker-search{width:100%;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:0.9rem;font-family:var(--font-global);transition:border-color var(--transition)}
.picker-search:focus{outline:none;border-color:var(--accent)}
.picker-search::placeholder{color:var(--text-muted)}
.emoji-grid{flex:1;overflow-y:auto;padding:16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;align-content:start}
.emoji-grid::-webkit-scrollbar{width:6px}
.emoji-grid::-webkit-scrollbar-track{background:transparent}
.emoji-grid::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.emoji-grid::-webkit-scrollbar-thumb:hover{background:var(--border-light)}
.emoji-tile{display:flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:1.7rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);background:transparent;font-family:var(--font-emoji);line-height:1;position:relative}
.emoji-tile:hover{background:var(--bg-elevated);transform:scale(1.15)}
.emoji-tile.selected{background:rgba(255,107,53,0.2);box-shadow:0 0 0 2px var(--accent)}
.emoji-tile.incompatible{opacity:0.15;cursor:not-allowed}
.emoji-tile.incompatible:hover{transform:none;background:transparent}
.emoji-tile.compatible{opacity:1}
.emoji-tile.incompatible-text{opacity:0.3}
.result-panel{background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 32px;gap:24px;position:relative}
.result-empty{text-align:center}
.result-placeholder{font-size:1.1rem;color:var(--text-muted);line-height:1.7;font-weight:500}
.result-content{width:100%;max-width:320px;display:flex;flex-direction:column;align-items:center;gap:20px}
.result-emoji-row{display:flex;align-items:center;gap:12px}
.result-emoji-box{font-size:2.5rem;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);font-family:var(--font-emoji);line-height:1}
.result-plus{font-size:1.5rem;color:var(--text-muted);font-weight:700}
.result-image-container{width:100%;max-width:240px;aspect-ratio:1;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);overflow:hidden;display:flex;align-items:center;justify-content:center}
#result-image{width:100%;height:100%;object-fit:contain}

/* ============================================ SEARCH & TRENDING ============================================ */
.search-container{padding-top:60px;padding-bottom:60px}
.search-bar-wrapper{margin-bottom:32px}
.search-bar{width:100%;max-width:600px;margin:0 auto;display:flex;padding:16px 24px;background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius-xl);color:var(--text-primary);font-size:1.1rem;font-family:var(--font-global);transition:border-color var(--transition)}
.search-bar:focus{outline:none;border-color:var(--accent)}
.search-bar::placeholder{color:var(--text-muted)}
.emoji-grid-full{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:8px}
.emoji-tile-full{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:12px 8px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);gap:4px}
.emoji-tile-full:hover{background:var(--bg-card-hover);border-color:var(--border-light);transform:translateY(-2px)}
.emoji-tile-full .emoji-char{font-size:1.8rem;font-family:var(--font-emoji);line-height:1}
.emoji-tile-full .emoji-name{font-size:0.65rem;color:var(--text-muted);text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;width:100%}
.emoji-tile-full:hover .emoji-name{color:var(--text-secondary)}
.search-empty{text-align:center;padding:60px 0;color:var(--text-muted)}
.trending-container{padding-top:60px;padding-bottom:60px}
.trending-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.trending-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:all 0.25s ease}
.trending-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--border-light)}
.trending-image{width:100%;aspect-ratio:1;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;font-size:3rem;font-family:var(--font-emoji)}
.trending-info{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.trending-emojis{font-size:1.4rem;font-family:var(--font-emoji)}
.trending-emojis span{opacity:0.7}
.trending-copy-btn{padding:4px 10px;background:var(--accent);border-radius:var(--radius-sm);font-size:0.75rem;font-weight:600;color:white;transition:all var(--transition)}
.trending-copy-btn:hover{background:var(--accent-hover)}
/* ---- Loading & Notification ---- */
.loading-state{grid-column:1/-1;text-align:center;padding:60px 0;color:var(--text-muted)}
.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 0.8s linear infinite;margin:0 auto 16px}
@keyframes spin{to{transform:rotate(360deg)}}
.notification{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);padding:12px 24px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);font-size:0.9rem;font-weight:500;z-index:999;transition:transform 0.3s ease;box-shadow:var(--shadow)}
.notification.show{transform:translateX(-50%) translateY(0)}
/* ---- Footer ---- */
.footer{padding:32px 0;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:0.85rem}
/* ============================================ RESPONSIVE ============================================ */
@media (max-width: 900px) {
  .kitchen-layout{grid-template-columns:1fr}
  .picker-panel{max-height:40vh}
  .picker-panel:last-child{border-left:none;border-top:1px solid var(--border)}
  .result-panel{padding:24px 16px;order:-1}
}
@media (max-width: 600px) {
  .hero{padding:40px 0 30px}
  .hero-title{font-size:2.8rem}
  .hero-desc{font-size:1rem}
  .tools-grid{grid-template-columns:1fr}
  .steps{flex-direction:column}
  .step-arrow{display:none}
  .step{max-width:100%}
  .nav-links{gap:0}
  .nav-link{padding:8px 10px;font-size:0.8rem}
  .emoji-grid-full{grid-template-columns:repeat(auto-fill,minmax(60px,1fr))}
  .trending-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}