.decoder-container{--decoder-primary: #3b82f6;--decoder-primary-dark: #2563eb;--decoder-bg: #ffffff;--decoder-card-bg: #ffffff;--decoder-surface: #f8fafc;--decoder-border: #e5e7eb;--decoder-border-strong: #d1d5db;--decoder-text: #1f2937;--decoder-text-secondary: #4b5563;--decoder-text-muted: #9ca3af;font-family:var(--font-sans, system-ui, -apple-system, sans-serif);background-color:var(--decoder-bg);color:var(--decoder-text);line-height:1.6;padding:max(24px,calc(env(safe-area-inset-top,0px) + 24px)) 24px 24px;min-height:100vh;min-height:100dvh;overflow:visible;scroll-padding-top:24px}.decoder-container .decoder-wrapper{max-width:1200px;margin:0 auto;padding-top:1px}.decoder-container .decoder-header{text-align:center;padding:40px 24px;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-radius:16px;margin-bottom:28px;box-shadow:0 8px 24px #3b82f62e}.decoder-container .decoder-title{font-size:1.9rem;font-weight:700;margin:0 0 10px;letter-spacing:-.01em;color:#fff}.decoder-container .decoder-subtitle{font-size:1rem;opacity:.92;margin:0;color:#fff}.decoder-container .decoder-content{display:flex;gap:24px;margin-bottom:28px;align-items:stretch}.decoder-container .decoder-content .input-section,.decoder-container .decoder-content .output-section{display:flex!important;flex-direction:column!important;grid-template-columns:none!important;flex:1;min-width:0;background:var(--decoder-card-bg);border:1px solid var(--decoder-border);border-radius:16px;padding:24px;box-shadow:0 1px 3px #0000000a}.decoder-container .section-title{font-size:1.05rem;font-weight:600;margin:0 0 16px;color:var(--decoder-text);padding-bottom:10px;border-bottom:2px solid var(--decoder-primary);display:block;width:100%}.decoder-container .file-upload{margin-bottom:12px}.decoder-container .file-input{display:none}.decoder-container .file-label{display:block;padding:18px 16px;background:var(--decoder-surface);border:2px dashed var(--decoder-border-strong);border-radius:10px;text-align:center;cursor:pointer;transition:all .2s ease;color:var(--decoder-text-secondary)}.decoder-container .file-label:hover,.decoder-container .file-label.drag-over{border-color:var(--decoder-primary);background:#eff6ff;color:var(--decoder-primary-dark)}.decoder-container .file-label p{margin:4px 0;color:inherit}.decoder-container .file-label small{color:var(--decoder-text-muted);font-size:12px}.decoder-container .divider-or{display:flex;align-items:center;gap:12px;margin:12px 0;color:var(--decoder-text-muted);font-size:13px;font-weight:500}.decoder-container .divider-or:before,.decoder-container .divider-or:after{content:"";flex:1;height:1px;background:var(--decoder-border)}.decoder-container .decoder-textarea{width:100%;min-height:180px;flex:1;padding:12px;border:1px solid var(--decoder-border-strong);border-radius:8px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;color:var(--decoder-text);background:#fff;box-sizing:border-box;transition:border-color .2s,box-shadow .2s}.decoder-container .decoder-textarea:focus{outline:none;border-color:var(--decoder-primary);box-shadow:0 0 0 3px #3b82f61f}.decoder-container .decoder-textarea::placeholder{color:var(--decoder-text-muted)}.decoder-container .controls{display:flex;gap:10px;margin-top:auto;padding-top:16px;align-items:center}.decoder-container .decoder-select{flex:1;padding:9px 12px;border:1px solid var(--decoder-border-strong);border-radius:8px;background:#fff;color:var(--decoder-text);font-size:13px;cursor:pointer;min-width:0;transition:border-color .2s}.decoder-container .decoder-select:focus{outline:none;border-color:var(--decoder-primary)}.decoder-container .decoder-btn{padding:9px 22px;background:var(--decoder-primary);color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;transition:background .2s,transform .1s;white-space:nowrap}.decoder-container .decoder-btn:hover{background:var(--decoder-primary-dark)}.decoder-container .decoder-btn:active{transform:translateY(1px)}.decoder-container .decoder-btn:disabled{background:var(--decoder-border-strong);cursor:not-allowed}.decoder-container .detected-info{margin-top:12px;padding:12px 16px;background:#eff6ff;border-radius:8px;border-left:3px solid var(--decoder-primary)}.decoder-container .detected-info h3{font-size:13px;font-weight:600;margin:0 0 6px;color:var(--decoder-text)}.decoder-container .detected-info p{font-size:12px;margin:2px 0;color:var(--decoder-text-secondary)}.decoder-container .detected-info span{font-weight:600;color:var(--decoder-primary)}.decoder-container .encoding-list{margin-top:28px;background:var(--decoder-card-bg);border:1px solid var(--decoder-border);border-radius:16px;padding:24px;box-shadow:0 1px 3px #0000000a}.decoder-container .encoding-list .section-title{border-bottom-color:var(--decoder-border)}.decoder-container .encoding-list>p{color:var(--decoder-text-secondary);font-size:13px;margin:0 0 12px}.decoder-container .encoding-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:12px}.decoder-container .encoding-item{background:var(--decoder-surface);padding:12px;border-radius:8px;text-align:center;border:1px solid var(--decoder-border);transition:transform .2s,box-shadow .2s,border-color .2s;color:var(--decoder-text-secondary);font-size:12px}.decoder-container .encoding-item:hover{transform:translateY(-2px);box-shadow:0 6px 16px #3b82f61a;border-color:var(--decoder-primary)}.decoder-container .encoding-name{font-weight:600;color:var(--decoder-primary);font-size:13px;margin-bottom:2px}.decoder-container .decoder-footer{text-align:center;padding:20px;margin-top:28px;color:var(--decoder-text-muted);font-size:13px;border-top:1px solid var(--decoder-border)}.decoder-container .status-message{position:fixed;top:24px;right:24px;padding:10px 20px;border-radius:8px;box-shadow:0 4px 16px #00000029;z-index:1000;font-size:13px;max-width:360px;color:#fff}.decoder-container .status-success{background:#10b981}.decoder-container .status-error{background:#ef4444}.decoder-container .status-warning{background:#f59e0b}@media (max-width: 900px){.decoder-container .decoder-content{flex-direction:column}.decoder-container .decoder-title{font-size:1.5rem}.decoder-container .controls{flex-direction:column;align-items:stretch}.decoder-container .decoder-select,.decoder-container .decoder-btn{width:100%}.decoder-container .encoding-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 520px){.decoder-container{padding:max(16px,calc(env(safe-area-inset-top,0px) + 16px)) 12px 16px}.decoder-container .decoder-header{padding:28px 16px;border-radius:14px;margin-bottom:18px}.decoder-container .encoding-grid{grid-template-columns:1fr}}@media (prefers-color-scheme: dark){.decoder-container,.decoder-container .decoder-content .input-section,.decoder-container .decoder-content .output-section,.decoder-container .encoding-list{background:#fff!important;color:#1f2937!important}.decoder-container .file-label{background:#f8fafc!important;color:#4b5563!important}.decoder-container .decoder-textarea,.decoder-container .decoder-select{background:#fff!important;color:#1f2937!important}.decoder-container .encoding-item{background:#f8fafc!important;color:#4b5563!important}}