:root{--bg: #ffffff;--fg: #111827;--muted: #6b7280;--border: #e5e7eb;--accent: #2563eb;--accent-hover: #1d4ed8;--hover-bg: #f3f4f6;--card-bg: #ffffff;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08);--shadow-lg: 0 10px 30px rgba(0,0,0,.1)}html[data-theme=dark]{--bg: #0f172a;--fg: #e2e8f0;--muted: #94a3b8;--border: #334155;--hover-bg: #1e293b;--card-bg: #1e293b;--shadow: 0 1px 3px rgba(0,0,0,.3);--shadow-lg: 0 10px 30px rgba(0,0,0,.4)}@media(prefers-color-scheme:dark){html[data-theme=system]{--bg: #0f172a;--fg: #e2e8f0;--muted: #94a3b8;--border: #334155;--hover-bg: #1e293b;--card-bg: #1e293b;--shadow: 0 1px 3px rgba(0,0,0,.3);--shadow-lg: 0 10px 30px rgba(0,0,0,.4)}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}body{font-family:-apple-system,system-ui,Segoe UI,Roboto,sans-serif;margin:0;background:var(--bg);color:var(--fg);line-height:1.6;min-height:100vh;min-height:100dvh;padding-top:env(safe-area-inset-top,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,.btn:focus-visible,.tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{max-width:960px;margin:0 auto;padding:0 24px}.container-sm{max-width:480px;margin:0 auto;padding:0 24px}.container-lg{max-width:1200px;margin:0 auto;padding:0 24px}.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:100}.navbar-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--fg);text-decoration:none}.navbar-brand img{width:28px;height:28px}.navbar-links{display:flex;gap:8px;align-items:center}.navbar-links a,.navbar-links button{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;transition:all .15s}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card+.card{margin-top:16px}.form-group{margin-bottom:16px}.form-group label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--fg);font-size:14px;transition:border-color .15s,box-shadow .15s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #2563eb1a}.form-group textarea{resize:vertical;min-height:80px}.form-hint{font-size:12px;color:var(--muted);margin-top:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--fg);font-size:14px;font-weight:600;cursor:pointer;min-height:40px;transition:all .15s;text-decoration:none}.btn:hover{background:var(--hover-bg);border-color:var(--muted);transform:translateY(-1px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:0 4px 12px #2563eb40}.btn-danger{border-color:var(--error);color:var(--error)}.btn-danger:hover{background:#ef44441a}.btn-sm{padding:6px 12px;font-size:13px}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.toast{position:fixed;bottom:calc(20px + env(safe-area-inset-bottom,0px));left:50%;transform:translate(-50%) translateY(20px);padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;z-index:9999;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;box-shadow:var(--shadow-lg);max-width:calc(100vw - 32px)}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.toast.success{background:var(--success);color:#fff}.toast.error{background:var(--error);color:#fff}.text-center{text-align:center}.text-muted{color:var(--muted)}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mb-2{margin-bottom:16px}.mb-4{margin-bottom:32px}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.gap-2{gap:8px}.gap-3{gap:16px}.page-title{font-size:28px;font-weight:700;margin:0 0 8px}.page-subtitle{color:var(--muted);font-size:14px;margin:0 0 32px}.alert{padding:12px 16px;border-radius:8px;font-size:14px;margin-bottom:16px}.alert-error{background:#ef44441a;color:var(--error);border:1px solid rgba(239,68,68,.2)}.alert-success{background:#10b9811a;color:var(--success);border:1px solid rgba(16,185,129,.2)}.tabs{display:flex;gap:4px;background:var(--hover-bg);padding:3px;border-radius:12px;border:1px solid var(--border);margin-bottom:24px}.tab{padding:8px 20px;min-height:40px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;transition:all .15s;border:none;background:none;color:var(--fg)}.tab.active{background:var(--accent);color:#fff}.tab:hover:not(.active){background:#0000000a}.clipboard-item{border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:flex;gap:12px;align-items:flex-start;transition:all .15s;background:var(--card-bg)}.clipboard-item:hover{background:var(--hover-bg);border-color:var(--muted)}.clipboard-item+.clipboard-item{margin-top:10px}.clipboard-item .preview{flex:1;overflow:hidden;cursor:pointer}.clipboard-item .preview-text{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word;font-size:14px;line-height:1.5}.clipboard-item .meta{color:var(--muted);font-size:12px;margin-top:6px}.clipboard-item .actions{display:flex;gap:6px;align-items:center;flex-shrink:0}.snippet-row{display:flex;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}.snippet-row:last-child{border-bottom:none}.snippet-row .trigger{font-family:ui-monospace,Menlo,monospace;font-weight:600;min-width:120px;color:var(--accent)}.snippet-row .content{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.empty-state{text-align:center;padding:48px 24px;color:var(--muted)}.empty-state .icon{font-size:48px;opacity:.3;margin-bottom:12px}.empty-state .title{font-size:16px;font-weight:600;color:var(--fg);margin-bottom:4px}.hero{text-align:center;padding:80px 24px 60px}.hero h1{font-size:48px;font-weight:800;letter-spacing:-1px;margin:0 0 16px}.hero p{font-size:18px;color:var(--muted);max-width:540px;margin:0 auto 32px}.hero .btn{font-size:16px;padding:14px 32px}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;padding:48px 0}.feature-card{padding:24px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card-bg)}.feature-card h3{margin:12px 0 8px;font-size:18px}.feature-card p{color:var(--muted);font-size:14px;margin:0}.feature-icon{font-size:32px}.footer{padding:32px 24px;padding-bottom:calc(32px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:13px;margin-top:48px}.footer a{color:var(--muted)}.footer a:hover{color:var(--accent)}.footer-links{display:flex;justify-content:center;gap:24px;margin-bottom:12px}@media(max-width:768px){.container,.container-sm,.container-lg{padding:0 16px}.navbar{padding:12px 16px;flex-wrap:wrap;gap:10px}.navbar-links{width:100%;justify-content:flex-end;flex-wrap:wrap}.hero{padding:56px 16px 40px}.hero h1{font-size:36px}.hero p{font-size:16px}.footer-links{flex-wrap:wrap;gap:12px}.tabs{overflow-x:auto;-webkit-overflow-scrolling:touch}.tab{white-space:nowrap;flex-shrink:0}.snippet-row{flex-wrap:wrap}.snippet-row .trigger{min-width:auto}.clipboard-item{padding:12px;gap:8px}.clipboard-item .actions{flex-wrap:wrap}}@media(max-width:400px){.container,.container-sm,.container-lg{padding:0 12px}.page-title{font-size:22px}.dashboard-header{gap:8px}.btn{padding:8px 14px;font-size:13px}}