:root {
    --bg-primary: #121212; /* Deep Charcoal Gray */
    --bg-secondary: #1e1b1a; /* Warm Elevated Gray */
    --text-primary: #ffffff; /* Pure White */
    --text-secondary: #b0a0a0; /* Warm Gray Text */
    --accent-color: #ff922b; /* Warm Amber/Orange */
    --accent-glow: rgba(255, 146, 43, 0.4);
    --border-color: rgba(255, 255, 255, 0.12);
    --glass-bg: rgba(45, 40, 38, 0.85); /* Warm Glass Effect */
    --event-note-on: #fab005; /* Golden Yellow */
    --event-note-off: #fa5252; /* Bright Red-Orange */
    --event-cc: #fd7e14; /* Deep Orange */
    --event-meta: #e64980; /* Warm Rose */
    --event-pitch: #e8590c; /* Terracotta */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    background-image: radial-gradient(circle at top right, #352520, var(--bg-primary) 70%); /* Subtle warm brown glow */
}

.app-container {
    max-width: 1560px;
    margin: 0 auto;
    padding: 2rem;
}

.text-center { text-align: center; }
.hidden { display: none !important; }

.gradient-text {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fab005, #ff922b, #fa5252); /* Gold to Red-Orange */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2rem;
}

/* Dropzone */
.drop-zone {
    border: 2px dashed rgba(255, 146, 43, 0.4); /* Amber Border */
    border-radius: 20px;
    padding: 4rem;
    cursor: pointer;
    background: rgba(30, 25, 20, 0.3);
    transition: 0.3s;
    margin-bottom: 3rem;
}

.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--accent-color);
    background: rgba(45, 30, 25, 0.6);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: scale(1.01);
}

/* Header Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-color);
}

/* Tracks */
.track-container {
    background: var(--glass-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-top: 2rem;
}

.track-header {
    background: rgba(255, 200, 150, 0.05); /* Warm Glow */
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: 0.2s;
}

.track-header:hover {
    background: rgba(255, 200, 150, 0.1);
}

.track-info {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
}

.track-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffd8a8; /* Cream/Amber Light */
}

.track-instrument {
    font-size: 0.95rem;
    color: #ff922b; /* Amber */
    font-weight: 600;
    opacity: 0.8;
}

/* Event Table */
.events-table-container {
    max-height: 600px;
    overflow-y: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

th {
    background: #25201d; /* Warm Dark Header */
    padding: 1rem 1.5rem;
    text-align: left;
    position: sticky;
    top: 0;
    z-index: 10;
    color: #ffd8a8; /* Warm light header text */
    font-weight: 600;
}

td {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-family: 'JetBrains Mono', monospace;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.tag-noteon { background: rgba(250, 176, 5, 0.2); color: #fab005; }
.tag-noteoff { background: rgba(250, 82, 82, 0.2); color: #fa5252; }
.tag-cc { background: rgba(253, 126, 20, 0.2); color: #fd7e14; }
.tag-meta { background: rgba(230, 73, 128, 0.2); color: #e64980; }
.tag-pitch { background: rgba(232, 89, 12, 0.2); color: #e8590c; }
.tag-other { background: rgba(176, 160, 160, 0.2); color: #b0a0a0; }

.event-data strong {
    color: #fff;
}

.save-btn {
    background: linear-gradient(135deg, #fab005, #ff922b);
    color: #121212;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 800;
    cursor: pointer;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(255, 146, 43, 0.3);
    transition: 0.3s;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 146, 43, 0.5);
}

.btn-del {
    background: rgba(250, 82, 82, 0.2);
    color: #fa5252;
    border: 1px solid rgba(250, 82, 82, 0.4);
    border-radius: 4px;
    padding: 2px 8px;
    cursor: pointer;
    font-weight: 800;
    transition: 0.2s;
}

.btn-del:hover {
    background: #fa5252;
    color: #fff;
}

input[type="number"], input[type="text"] {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: #fff;
    border-radius: 4px;
    padding: 2px 5px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
}

.edit-delta { width: 60px; color: #fab005 !important; }

.hex-data {
    color: #ffa8a8;
    font-style: italic;
    opacity: 0.8;
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
}

.expansion-row {
    background: rgba(255, 146, 43, 0.05);
    display: none;
}

.expansion-row.show {
    display: table-row;
}

.full-hex-area {
    padding: 1rem 2rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: #ffc9c9;
    word-break: break-all;
    line-height: 1.4;
    border-left: 3px solid var(--accent-color);
}

.editor-area {
    background: rgba(45, 30, 25, 0.4);
    border-radius: 8px;
    margin: 10px;
}

.editor-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 20px;
    align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.editor-grid label {
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
}

.ev-row { cursor: pointer; transition: 0.2s; }
.ev-row:hover { background: rgba(255, 255, 255, 0.05); }

/* Loading Overlay Styles */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader-content {
    text-align: center;
    width: 300px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 146, 43, 0.2);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: spin 1s linear infinite;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.progress-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-top: 1rem;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #fab005, #ff922b);
    transition: width 0.1s ease;
}