/* Music Review Service - Styles */

:root {
    --primary: #c41e3a;
    --primary-dark: #9a1830;
    --secondary: #1a1a1a;
    --background: #f5f5f5;
    --card-bg: #ffffff;
    --text: #1a1a1a;
    --text-muted: #666666;
    --border: #e0e0e0;
    --success: #28a745;
    --error: #dc3545;
    --warning: #ffc107;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.tagline {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.hidden {
    display: none !important;
}

/* Form */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.form-group input[type="text"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: rgba(196, 30, 58, 0.05);
}

.drop-zone input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.drop-zone p {
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.drop-zone .hint {
    font-size: 0.9rem;
}

.drop-zone .formats {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    color: #999;
}

/* File List */
.file-list {
    margin-top: 1rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--background);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.file-item .file-name {
    font-size: 0.9rem;
    color: var(--secondary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item .file-size {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0 1rem;
}

.file-item .remove-file {
    background: none;
    border: none;
    color: var(--error);
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1.2rem;
    line-height: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background: #333;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

/* Progress */
.progress-container {
    margin-bottom: 1.5rem;
}

.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-status {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.progress-details {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}

/* Results */
.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.rating {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
}

.rating .stars {
    color: #ffd700;
    letter-spacing: 2px;
}

.review-text {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--secondary);
    margin-bottom: 2rem;
}

.review-text p {
    margin-bottom: 1rem;
    text-align: justify;
}

.result-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.result-actions .btn {
    flex: 1;
    min-width: 150px;
}

/* Track Reviews */
.track-reviews {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.track-reviews h3 {
    margin-bottom: 1rem;
    color: var(--secondary);
}

.track-review-item {
    padding: 1rem;
    background: var(--background);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.track-review-item h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.track-review-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Error */
.error-card {
    border-left: 4px solid var(--error);
}

.error-card h2 {
    color: var(--error);
}

#error-message {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    header h1 {
        font-size: 1.75rem;
    }

    .card {
        padding: 1.5rem;
    }

    .drop-zone {
        padding: 2rem 1rem;
    }

    .result-actions {
        flex-direction: column;
    }

    .result-actions .btn {
        width: 100%;
    }
}