:root { 
    --primary: #00ff88; 
    --bg: #0a0a0c; 
    --card: #16161e; 
    --red: #ff4444; 
    --blue: #3b82f6; 
    --ma2: #f59e0b; 
    --border: #2d2d3d;
}

body { 
    background: var(--bg); 
    font-family: 'Inter', sans-serif; 
    color: #fff; 
    margin: 0; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
}

.container { 
    width: 95%; max-width: 850px; background: var(--card); 
    border-radius: 20px; padding: 30px; border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5); 
}

.header { text-align: center; margin-bottom: 25px; }
.header h1 { color: var(--primary); letter-spacing: 2px; text-transform: uppercase; font-size: 24px; display: flex; align-items: baseline; justify-content: center; gap: 10px; }
.header h1 span { font-size: 14px; opacity: 0.6; text-transform: none; font-weight: normal; color: #fff; }

.lang-switch { position: absolute; top: 20px; right: 20px; display: flex; gap: 10px; }
.lang-switch button { 
    background: #23232f; border: 1px solid #333; color: #888; 
    padding: 8px 12px; border-radius: 6px; cursor: pointer; font-weight: bold;
}
.lang-switch button.active { border-color: var(--primary); color: var(--primary); }

.tabs { display: flex; gap: 10px; margin-bottom: 20px; }
.tab-btn { flex: 1; padding: 12px; border: none; background: #23232f; color: #888; cursor: pointer; border-radius: 8px; font-weight: bold; }
.tab-btn.active { background: var(--primary); color: #000; }

.form-card { background: #1c1c27; padding: 15px; border-radius: 12px; margin-bottom: 12px; border: 1px solid var(--border); }
.name-base-input { width: 100%; background: #000; border: 1px solid #333; color: #fff; padding: 10px; margin-top: 5px; box-sizing: border-box; border-radius: 6px; font-weight: bold; }

.time-inputs { display: flex; gap: 5px; margin-top: 10px; justify-content: center; }
.time-inputs input { width: 45px; background: #000; color: var(--primary); border: 1px solid #333; text-align: center; padding: 8px; border-radius: 4px; font-weight: bold; }

.small-input { width: 60px; background: #000; color: #fff; border: 1px solid #333; padding: 8px; border-radius: 4px; text-align: center; }

.upload-box { border: 2px dashed #333; padding: 60px; text-align: center; cursor: pointer; border-radius: 12px; background: #1c1c27; transition: 0.3s; }
.upload-box:hover { border-color: var(--primary); }

.track-list { max-height: 400px; overflow-y: auto; background: #000; border-radius: 10px; margin: 20px 0; border: 1px solid #222; }
.track-item { display: grid; grid-template-columns: 40px 100px 1fr 180px; align-items: center; padding: 12px; border-bottom: 1px solid #111; }

.track-name-input { background: transparent; border: 1px solid transparent; color: #fff; font-weight: bold; width: 90%; padding: 5px; border-radius: 4px; font-size: 16px; }
.track-name-input:focus { border-color: var(--primary); background: #111; outline: none; }

.tag { font-size: 10px; font-weight: bold; padding: 4px 8px; border-radius: 5px; text-align: center; text-transform: uppercase; }
.tag-marker { color: var(--primary); border: 1px solid var(--primary); background: rgba(0,255,136,0.05); }
.tag-region { color: var(--blue); border: 1px solid var(--blue); background: rgba(59,130,246,0.05); }

.timecode { font-family: 'Courier New', monospace; color: var(--primary); font-weight: 900; font-size: 20px; text-align: right; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.btn-clear-sub { padding: 6px 12px; font-size: 11px; border: none; border-radius: 5px; font-weight: bold; cursor: pointer; }
.clean-reg { color: var(--blue); border: 1px solid var(--blue); background: rgba(59,130,246,0.1); }
.clean-mar { color: var(--primary); border: 1px solid var(--primary); background: rgba(0,255,136,0.1); }
.btn-reset { color: var(--red); background: none; border: none; font-size: 12px; font-weight: bold; cursor: pointer; }

.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.btn-group-row { display: grid; grid-template-columns: 1fr 50px; gap: 8px; }
.btn-action { padding: 14px; border-radius: 8px; border: none; font-weight: 900; cursor: pointer; text-transform: uppercase; transition: 0.3s; }
.btn-ma3 { background: var(--primary); color: #000; }
.btn-ma2 { background: var(--ma2); color: #000; }
.btn-copy { background: #23232f; color: #fff; border: 1px solid #333; border-radius: 8px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 18px; }

#toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #000; padding: 12px 25px; border-radius: 50px; font-weight: bold; display: none; z-index: 1000; }
.hidden { display: none !important; }