:root {
    --bg: #09090b;
    --panel: #18181b;
    --border: #27272a;
    --accent: #06b6d4;
    --accent-hover: #0891b2;
    --record: #ef4444;
    --text: #f4f4f5;
    --text-muted: #a1a1aa;
    --track-bg: #27272a;
    --clip-bg: #06b6d4;
    --bg-gradient: radial-gradient(circle at 10% 10%, #15152a 0%, #050508 60%);
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0; background: var(--bg-gradient); color: var(--text);
    font-family: 'Inter', sans-serif; height: 100vh; overflow: hidden;
}

.view-container { display: none; height: 100vh; width: 100%; }
.active-view { display: flex !important; flex-direction: column; }

/* ==================================
   VIEW 1: Library (The Archive)
   ================================== */
#view-library { padding: 40px; overflow-y: auto; }
.library-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 20px; margin-bottom: 30px; }
.library-header h1 { font-family: 'Outfit'; font-size: 2.5rem; color: #fff; margin: 0; text-shadow: 0 0 15px rgba(0,240,255,0.3); }

.library-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 30px; }
.album-card { background: rgba(0,0,0,0.5); border: 1px solid var(--border); border-radius: 12px; padding: 25px; transition: 0.3s; position: relative; overflow: hidden; backdrop-filter: blur(10px); }
.album-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--accent); opacity: 0.5; transition: 0.3s; }
.album-card:hover { transform: translateY(-5px); border-color: var(--accent); box-shadow: 0 10px 30px rgba(0,240,255,0.1); }
.album-card:hover::before { opacity: 1; }
.album-type { color: var(--accent); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; font-weight: 800; margin-bottom: 10px; }
.album-title { font-family: 'Outfit'; font-size: 1.8rem; color: #fff; margin: 0 0 20px 0; font-weight: 800; }

.song-list { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--border); padding-top: 20px; }
.song-item { display: flex; justify-content: space-between; align-items: center; background: #18181b; padding: 12px 15px; border-radius: 8px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: 0.2s; border: 1px solid transparent; }
.song-item:hover { background: #27272a; border-color: var(--accent); color: var(--accent); }
.song-stage { font-size: 0.75rem; background: rgba(6,182,212,0.15); color: var(--accent); padding: 4px 10px; border-radius: 12px; font-family: 'Outfit'; text-transform: uppercase; font-weight: bold; }
.add-song-btn { background: transparent; border: 1px dashed var(--border); color: var(--text-muted); padding: 10px; border-radius: 8px; cursor: pointer; text-align: center; font-weight: bold; transition: 0.2s; }
.add-song-btn:hover { border-color: var(--text); color: var(--text); }


/* ==================================
   VIEW 2: The Web-DAW
   ================================== */
.daw-workspace { background: var(--bg); }
.glass-panel { background: var(--panel); border: 1px solid var(--border); box-shadow: 0 4px 20px rgba(0,0,0,0.5); }

.daw-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 25px; height: 65px; border-bottom: 1px solid var(--border); }
.logo { display: flex; align-items: center; gap: 15px; font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 1.3rem; color: var(--accent); letter-spacing: 1.5px; }
.btn-icon { background: transparent; border: 1px solid var(--border); color: var(--text); width: 35px; height: 35px; border-radius: 6px; cursor: pointer; transition: 0.2s; }
.btn-icon:hover { background: var(--accent); color: #000; border-color: var(--accent); }

.transport-controls { display: flex; gap: 15px; align-items: center; }
.transport-controls button { background: transparent; border: none; color: var(--text); font-size: 1.3rem; cursor: pointer; width: 45px; height: 45px; border-radius: 50%; transition: 0.2s; }
.transport-controls button:hover { background: rgba(255,255,255,0.1); color: var(--accent); }
.record-btn { color: var(--record) !important; }
.record-btn:hover { background: rgba(239, 68, 68, 0.2) !important; }
.time-display { font-family: 'Outfit', monospace; font-size: 1.6rem; font-weight: 700; color: var(--accent); background: #000; padding: 5px 15px; border-radius: 6px; border: 1px solid var(--border); }

.project-info { display: flex; gap: 15px; align-items: center; }
.project-title-display { font-family: 'Outfit'; font-size: 1.2rem; font-weight: bold; color: #fff; background: #000; padding: 8px 15px; border-radius: 6px; border: 1px solid var(--border); }

.daw-main { display: flex; flex: 1; height: calc(100vh - 65px); }

/* Left Toolbar */
.daw-tools { width: 300px; padding: 20px; overflow-y: auto; border-right: 1px solid var(--border); }
.daw-tools h3 { margin-top: 0; font-family: 'Outfit'; color: var(--text); border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 20px; }
.tool-group { margin-bottom: 25px; }
.tool-group h4 { color: var(--accent); margin-bottom: 12px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; }
.tool-btn { display: block; width: 100%; text-align: left; background: #27272a; color: var(--text); border: 1px solid #3f3f46; padding: 12px; border-radius: 6px; margin-bottom: 8px; cursor: pointer; transition: all 0.2s; font-size: 0.9rem; font-weight: 600; }
.tool-btn:hover { background: var(--accent); border-color: var(--accent); color: #000; transform: translateX(5px); }

/* Timeline & Tracks */
.daw-timeline { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: #000; position: relative; }
.timeline-ruler { height: 35px; background: #1f1f22; border-bottom: 1px solid var(--border); display: flex; align-items: center; padding-left: 210px; color: var(--text-muted); font-size: 0.8rem; }
.tracks-container { flex: 1; overflow-y: auto; overflow-x: auto; padding-bottom: 100px; }

.track { display: flex; border-bottom: 1px solid var(--border); height: 110px; min-width: max-content; }
.track-header { width: 200px; min-width: 200px; background: #1f1f22; border-right: 1px solid #000; padding: 12px; display: flex; flex-direction: column; justify-content: space-between; position: sticky; left: 0; z-index: 10; }
.track-name { font-weight: 700; font-size: 0.95rem; color: #fff; }
.track-controls { display: flex; gap: 8px; }
.btn-sm { background: #3f3f46; border: none; color: #fff; padding: 6px 10px; border-radius: 4px; cursor: pointer; font-size: 0.8rem; font-weight: bold; transition: 0.2s; }
.btn-sm:hover { background: var(--accent); color: #000; }

.track-lane { flex: 1; min-width: 2000px; background: var(--track-bg); position: relative; border-bottom: 1px solid #111; }
.track-lane:nth-child(even) { background: #2a2a2e; }

.audio-clip { position: absolute; height: 90px; top: 10px; background: linear-gradient(180deg, rgba(6, 182, 212, 0.7) 0%, rgba(6, 182, 212, 0.4) 100%); border: 1px solid var(--accent); border-radius: 6px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: bold; color: #fff; box-shadow: 0 4px 10px rgba(0,0,0,0.3); transition: filter 0.2s; }
.audio-clip:hover { filter: brightness(1.2); }

/* Audit Ledger */
.daw-audit { width: 320px; padding: 20px; border-left: 1px solid var(--border); display: flex; flex-direction: column; background: #121214; }
.daw-audit h3 { margin-top: 0; font-family: 'Outfit'; color: var(--text); border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 20px; }
.audit-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; }
.audit-item { background: #1f1f22; padding: 12px; border-radius: 8px; border-left: 4px solid var(--accent); font-size: 0.85rem; box-shadow: 0 2px 5px rgba(0,0,0,0.2); animation: fadeIn 0.4s ease-out; }
.audit-time { color: var(--accent); font-size: 0.75rem; margin-bottom: 6px; font-family: 'Outfit', monospace; font-weight: bold; }

/* Buttons & Utils */
.btn-primary { background: var(--accent); color: #000; border: none; padding: 10px 20px; border-radius: 6px; cursor: pointer; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; transition: 0.2s; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3); }
.btn-outline { background: transparent; border: 1px solid var(--accent); color: var(--accent); padding: 8px 15px; border-radius: 6px; cursor: pointer; font-weight: bold; transition: 0.2s; }
.btn-outline:hover { background: rgba(6, 182, 212, 0.1); }

/* Modals */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.85); align-items: center; justify-content: center; z-index: 100; backdrop-filter: blur(5px); }
.modal-content { width: 700px; padding: 25px; display: flex; flex-direction: column; gap: 20px; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.5); }
.modal-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 15px; }
.modal-header h2 { margin: 0; font-family: 'Outfit'; color: var(--accent); }
.close-btn { background: transparent; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
#briefing-editor { flex: 1; background: rgba(0,0,0,0.5); border: 1px solid var(--border); color: #fff; padding: 20px; font-family: 'Inter'; font-size: 1rem; line-height: 1.6; border-radius: 8px; resize: none; outline: none; }
#briefing-editor:focus { border-color: var(--accent); }
.user-msg { background: rgba(255,255,255,0.05); padding: 10px 15px; border-radius: 8px; border-right: 3px solid #888; text-align: right; font-size: 0.9rem; align-self: flex-end; width: 85%; }
.ai-msg { background: rgba(6,182,212,0.1); padding: 10px 15px; border-radius: 8px; border-left: 3px solid var(--accent); font-size: 0.9rem; align-self: flex-start; width: 85%; line-height: 1.4; }

.btn-icon-sm { background: transparent; border: none; color: var(--text-muted); cursor: pointer; padding: 5px; font-size: 0.9rem; border-radius: 4px; transition: 0.2s; }
.btn-icon-sm:hover { background: rgba(255,255,255,0.1); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: #3f3f46; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }