/* Video Optimizer Styling - Black + #FFC407 Theme */

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

:root {
    --primary-yellow: #FFC407;
    --primary-black: #000000;
    --secondary-black: #1a1a1a;
    --border-color: #333333;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --hover-yellow: #FFD54F;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--primary-black);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-bottom: 2px solid var(--primary-yellow);
}

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

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Upload Section */
.upload-section {
    margin-bottom: 3rem;
}

.upload-area {
    border: 3px dashed var(--primary-yellow);
    border-radius: 12px;
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--secondary-black);
}

.upload-area:hover {
    border-color: var(--hover-yellow);
    background-color: #222222;
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--hover-yellow);
    background-color: #2a2a2a;
    border-style: solid;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.upload-area h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.file-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* Configuration Section */
.config-section {
    background-color: var(--secondary-black);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
}

.config-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--primary-yellow);
    margin-bottom: 1.5rem;
}

.video-info {
    background-color: var(--primary-black);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.video-info h3 {
    font-size: 1.25rem;
    color: var(--primary-yellow);
    margin-bottom: 1rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.config-item {
    display: flex;
    flex-direction: column;
}

.config-item label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.select-input,
.text-input {
    padding: 0.75rem;
    background-color: var(--primary-black);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.select-input:focus,
.text-input:focus {
    outline: none;
    border-color: var(--primary-yellow);
}

.select-input option {
    background-color: var(--primary-black);
    color: var(--text-primary);
}

.hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.format-info {
    background-color: var(--primary-black);
    border-left: 4px solid var(--primary-yellow);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 2rem;
}

.format-info h4 {
    color: var(--primary-yellow);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.format-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0.25rem 0;
}

.warning-message {
    background-color: rgba(255, 196, 7, 0.1);
    border: 2px solid var(--primary-yellow);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 2rem;
    color: var(--primary-yellow);
    font-size: 0.9rem;
    line-height: 1.5;
}

.warning-message strong {
    color: var(--primary-yellow);
    font-weight: 700;
}

.warning-message.warning-red {
    background-color: rgba(255, 0, 0, 0.1);
    border: 2px solid #ff0000;
    color: #ff6666;
}

.warning-message.warning-red strong {
    color: #ff0000;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 6px;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-yellow);
    color: var(--primary-black);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--hover-yellow);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 196, 7, 0.4);
}

.btn-primary:disabled {
    background-color: #555555;
    color: #888888;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-yellow);
    border: 2px solid var(--primary-yellow);
}

.btn-secondary:hover {
    background-color: var(--primary-yellow);
    color: var(--primary-black);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 50px;
    background-color: var(--primary-black);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    overflow: hidden;
    margin-top: 1rem;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-yellow), var(--hover-yellow));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 600;
    color: var(--text-primary);
    z-index: 1;
}

/* Comparison Section */
.comparison-section {
    background-color: var(--secondary-black);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
}

.comparison-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--primary-yellow);
    margin-bottom: 1.5rem;
}

.stats-bar {
    display: flex;
    justify-content: space-around;
    background-color: var(--primary-black);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

.stat-item.reduction .stat-value {
    color: var(--primary-yellow);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.video-player-container {
    background-color: var(--primary-black);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.video-player-container h3 {
    color: var(--primary-yellow);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.video-player {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin-bottom: 0.75rem;
    background-color: #000000;
}

.video-player.aspect-changed {
    border: 4px solid #ff0000;
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
}

.video-specs {
    background-color: var(--primary-black);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.8125rem;
}

.video-specs .spec-row {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    border-bottom: 1px solid var(--border-color);
}

.video-specs .spec-row:last-child {
    border-bottom: none;
}

.video-specs .spec-label {
    color: var(--text-muted);
    font-weight: 500;
}

.video-specs .spec-value {
    color: var(--primary-yellow);
    font-weight: 600;
}

.video-controls {
    display: flex;
    gap: 0.5rem;
    flex-direction: column;
}

.btn-mute {
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary-black);
    color: var(--primary-yellow);
    border: 2px solid var(--primary-yellow);
    border-radius: 6px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-mute:hover {
    background-color: var(--primary-yellow);
    color: var(--primary-black);
}

.btn-mute.muted {
    background-color: var(--primary-yellow);
    color: var(--primary-black);
    border-color: var(--primary-yellow);
}

.playback-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.playback-controls .btn-secondary {
    width: auto;
    flex: 1;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer p {
    margin: 0.25rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header h1 {
        font-size: 2rem;
    }

    .upload-area {
        padding: 2rem 1rem;
    }

    .config-grid {
        grid-template-columns: 1fr;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        flex-direction: column;
    }

    .playback-controls {
        flex-direction: column;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}