/* ===================================
   Video Rotation Tool - Styles
   ================================= */

/* CSS Variables */
:root {
    --primary-color: #C62E2E;
    --secondary-color: #1e1e1e;
    --accent-color: #C1E172;
    --bg-light: #f8f9fa;
    --text-dark: #1e1e1e;
    --text-muted: #6c757d;
    --white: #ffffff;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #a02424 100%);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none"/><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.95);
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.7;
}

.hero-icon {
    margin-top: 30px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Tool Section */
.tool-section {
    padding: 60px 0;
    background-color: var(--bg-light);
}

.tool-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

/* Upload Area */
.upload-area {
    border: 3px dashed #ddd;
    border-radius: var(--border-radius);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-light);
}

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

.upload-area.dragover {
    border-color: var(--accent-color);
    background: #f0f8e8;
}

.upload-icon {
    color: var(--primary-color);
    margin-bottom: 20px;
    width: 64px;
    height: 64px;
}

.upload-area h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.upload-area p {
    color: var(--text-muted);
    margin-bottom: 8px;
}

.file-info {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Video Controls */
.video-controls {
    margin-top: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.video-preview-container {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-hover);
    border: 3px solid var(--bg-light);
    overflow: hidden;
    position: relative;
}

#videoPreview {
    max-width: 100%;
    max-height: 400px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    object-fit: contain;
}

/* Controls Panel - Compact rows below video */
.controls-panel {
    margin-top: 25px;
}

.controls-panel h3 {
    font-size: 1.2rem;
    margin-bottom: 18px;
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
}

.controls-panel h4 {
    font-size: 0.95rem;
    margin-bottom: 10px;
    color: var(--text-dark);
    font-weight: 600;
}

/* Rotation Buttons - Horizontal row */
.rotation-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.rotation-btn {
    background: var(--white);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow);
}

.rotation-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.rotation-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

.rotate-icon {
    font-size: 1.2rem;
    line-height: 1;
}

/* Custom Rotation - Inline horizontal */
.custom-rotation {
    background: var(--bg-light);
    padding: 15px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.custom-rotation label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
    margin: 0;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-group input[type="number"] {
    width: 80px;
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.input-suffix {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.85rem;
}

.angle-slider {
    width: 200px;
    height: 6px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
 }

.angle-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.angle-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.angle-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.angle-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
}

.angle-display {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1rem;
    min-width: 60px;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.input-group input[type="number"] {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

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

.input-suffix {
    color: var(--text-muted);
    font-weight: 500;
}

.angle-slider {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
     margin-bottom: 15px;
}

.angle-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.angle-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.angle-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.angle-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
}

.angle-display {
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Flip Controls - Horizontal row */
.flip-controls {
    background: var(--bg-light);
    padding: 15px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 15px;
}

.flip-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.flip-btn {
    background: var(--white);
    border: 2px solid var(--accent-color);
    color: var(--text-dark);
    padding: 10px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow);
}

.flip-btn:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.flip-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.flip-btn:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.flip-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

/* Action Buttons - Horizontal row */
.action-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--shadow);
}

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

.btn-primary:hover {
    background: #a02424;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: var(--white);
    color: var(--text-dark);
    border: 2px solid #ddd;
}

.btn-secondary:hover {
    background: var(--bg-light);
    border-color: var(--text-dark);
    transform: translateY(-2px);
}

/* Processing Status */
.processing-status {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: 40px 50px;
    background: var(--white);
    border-radius: var(--border-radius);
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.processing-status p {
    color: var(--text-dark);
    font-weight: 600;
    margin: 0;
    font-size: 1.1rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(198, 46, 46, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

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

/* Features Section */
.features-section {
    padding: 80px 0;
    background: var(--white);
}

.features-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-light);
    padding: 35px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* How To Section */
.how-to-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.how-to-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    background: var(--white);
    padding: 35px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.step p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #000 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.cta-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 30px;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-cta-primary:hover {
    background: #a02424;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-cta-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-cta-secondary:hover {
    background: var(--white);
    color: var(--text-dark);
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: var(--white);
}

.faq-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-light);
    margin-bottom: 15px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 20px 25px;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dark);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 25px 20px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Content Section */
.content-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.content-article {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.content-article h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.content-article h3 {
    font-size: 1.5rem;
    margin: 35px 0 20px;
    color: var(--text-dark);
}

.content-article p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-dark);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .tool-card {
        padding: 20px;
    }

    .upload-area {
        padding: 40px 20px;
    }

    .video-preview-container {
        padding: 25px;
    }

    #videoPreview {
        max-height: 400px;
    }

    .controls-panel h3 {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }

    .rotation-buttons {
        gap: 8px;
    }

    .rotation-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    .rotate-icon {
        font-size: 1.1rem;
    }

    .custom-rotation {
        padding: 12px 15px;
        gap: 10px;
    }

    .custom-rotation label {
        font-size: 0.85rem;
    }

    .input-group input[type="number"] {
        width: 70px;
        padding: 6px 10px;
        font-size: 0.85rem;
    }

    .angle-slider {
        width: 150px;
        height: 5px;
    }

    .angle-slider::-webkit-slider-thumb {
        width: 16px;
        height: 16px;
    }

    .angle-slider::-moz-range-thumb {
        width: 16px;
        height: 16px;
    }

    .angle-display {
        font-size: 0.9rem;
        min-width: 50px;
    }

    .flip-controls {
        padding: 12px 15px;
    }

    .flip-buttons {
        gap: 8px;
    }

    .flip-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    .action-buttons {
        gap: 8px;
    }

    .btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }

    .features-grid,
    .steps-container {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .content-article {
        padding: 30px 20px;
    }

    .content-article h2 {
        font-size: 1.6rem;
    }

    .content-article h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 60px 0 40px;
    }

    .hero-section h1 {
        font-size: 1.6rem;
    }

    .video-preview-container {
        padding: 20px;
    }

    #videoPreview {
        max-height: 300px;
    }

    .controls-panel h3 {
        font-size: 1rem;
    }

    .rotation-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
        gap: 4px;
    }

    .rotate-icon {
        font-size: 1rem;
    }

    .custom-rotation {
        padding: 10px 12px;
        gap: 8px;
        flex-direction: column;
        align-items: stretch;
    }

    .custom-rotation label {
        text-align: center;
    }

    .input-group {
        justify-content: center;
    }

    .angle-slider {
        width: 100%;
    }

    .angle-display {
        text-align: center;
    }

    .flip-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .features-section h2,
    .how-to-section h2,
    .faq-section h2 {
        font-size: 1.8rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }