/**
 * Video Converter Lite - Frontend Styles
 * Clean, modern design for video conversion interface
 */

:root {
    --vc-primary-color: #007bff;
    --vc-success-color: #28a745;
    --vc-warning-color: #ffc107;
    --vc-danger-color: #dc3545;
    --vc-info-color: #17a2b8;
    --vc-dark-color: #343a40;
    --vc-light-color: #f8f9fa;
    --vc-border-color: #e9ecef;
    --vc-text-color: #495057;
    --vc-text-muted: #6c757d;
    --vc-border-radius: 6px;
    --vc-transition: all 0.2s ease;
    --vc-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --vc-shadow-hover: 0 4px 12px rgba(0,0,0,0.15);
}

.video-converter-container {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    font-size: 14px;
    line-height: 1.5;
    color: var(--vc-text-color);
}

.video-converter-container * {
    box-sizing: border-box;
}

.converter-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--vc-border-color);
}

.converter-title {
    margin: 0 0 8px;
    font-size: 24px;
    font-weight: 600;
    color: var(--vc-dark-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.converter-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

h1.converter-title {
	margin-bottom: 0 !important;
}

.converter-subtitle {
    margin: 0;
    color: var(--vc-text-muted);
    font-size: 16px;
}

.converter-upload-section {
    margin-bottom: 30px;
}

.upload-area {
    border: 2px dashed var(--vc-text-muted);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    background: var(--vc-light-color);
    transition: var(--vc-transition);
    cursor: pointer;
    position: relative;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: var(--vc-text-color);
    background: var(--vc-border-color);
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--vc-success-color);
    background: #f8fff9;
    border-style: solid;
}

.upload-area.uploading {
    pointer-events: none;
    opacity: 0.7;
}

.upload-content {
    width: 100%;
}

.upload-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
    color: var(--vc-text-muted);
}

.upload-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--vc-text-color);
    margin-bottom: 8px;
}

.upload-subtext {
    color: var(--vc-text-muted);
    margin-bottom: 12px;
}

.upload-formats {
    font-size: 12px;
    color: #868e96;
    margin-top: 8px;
}

.formats-more {
    font-style: italic;
}

.file-input {
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    height: 100% !important;
    opacity: 0 !important;
    cursor: pointer !important;
    z-index: 1 !important;
}

.upload-progress,
.progress-container {
    margin-top: 20px;
    padding: 16px;
    background: var(--vc-light-color);
    border-radius: var(--vc-border-radius);
    border: 1px solid var(--vc-border-color);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--vc-border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.conversion-progress-section .progress-bar {
    height: 12px;
    margin-bottom: 12px;
}

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

.progress-text {
    text-align: center;
    font-weight: 500;
    color: var(--vc-text-color);
    font-size: 13px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-percentage {
    font-weight: 600;
    color: var(--vc-primary-color);
    font-size: 16px;
}

.file-info-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #e8f5e8;
    border-radius: var(--vc-border-radius);
    border: 1px solid #c3e6c3;
}

.section-title {
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 600;
    color: #2e7d32;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-icon {
    font-size: 18px;
}

.file-details,
.progress-details,
.success-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #c3e6c3;
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: #2e7d32;
}

.detail-value {
    color: var(--vc-text-color);
    text-align: right;
}

.conversion-options-section {
    margin-bottom: 30px;
}

.options-group {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--vc-light-color);
    border-radius: var(--vc-border-radius);
    border: 1px solid var(--vc-border-color);
}

.group-title {
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--vc-text-color);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.advanced-group .group-title {
    margin: 0;
}

.group-icon {
    font-size: 18px;
}

.options-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--vc-text-color);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 14px;
    color: var(--vc-text-color);
    background: #ffffff;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Preset buttons */
.preset-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.preset-btn {
    padding: 12px 16px;
    border: 1px solid #dee2e6;
    border-radius: var(--vc-border-radius);
    background: #ffffff;
    cursor: pointer;
    transition: var(--vc-transition);
    text-align: center;
    font-weight: 500;
    font-size: 13px;
}

.preset-btn:hover {
    border-color: var(--vc-success-color);
    background: #f8fff9;
    transform: translateY(-1px);
}

.preset-btn.active {
    border-color: var(--vc-success-color);
    background: var(--vc-success-color);
    color: #ffffff;
}

.preset-name {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
}

.preset-desc {
    font-size: 11px;
    opacity: 0.8;
    line-height: 1.2;
}

.toggle-advanced {
    background: none;
    border: none;
    color: var(--vc-primary-color);
    cursor: pointer;
    font-size: 13px;
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.toggle-advanced:hover {
    background: rgba(0, 123, 255, 0.1);
}

.toggle-icon {
    transition: transform 0.2s ease;
    font-size: 10px;
}

.toggle-advanced.expanded .toggle-icon {
    transform: rotate(180deg);
}

.advanced-options {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #dee2e6;
}

.convert-button,
.download-button,
.convert-another-button,
.retry-button {
    border: none;
    border-radius: var(--vc-border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--vc-transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    padding: 12px 24px;
}

.convert-button {
    background: var(--vc-success-color);
    color: #ffffff;
    padding: 16px 32px;
    font-size: 16px;
    width: 100%;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.3px;
}

.convert-button:hover:not(:disabled) {
    background: #218838;
    transform: translateY(-1px);
}

.convert-button:active {
    transform: translateY(0);
}

.convert-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.convert-button.converting {
    background: var(--vc-warning-color);
    color: #212529;
}

.download-button {
    background: var(--vc-info-color);
    color: #ffffff;
}

.download-button:hover {
    background: #138496;
    transform: translateY(-1px);
}

.convert-another-button {
    background: var(--vc-text-muted);
    color: #ffffff;
}

.convert-another-button:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

.retry-button {
    background: var(--vc-danger-color);
    color: #ffffff;
    padding: 10px 20px;
}

.retry-button:hover {
    background: #c82333;
    transform: translateY(-1px);
}

.button-icon {
    font-size: 18px;
}

.button-text {
    font-weight: 500;
}

.conversion-progress-section {
    margin-bottom: 30px;
    padding: 24px;
    background: var(--vc-light-color);
    border-radius: var(--vc-border-radius);
    border: 1px solid var(--vc-border-color);
}

.progress-details {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #dee2e6;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.success-section {
    margin-bottom: 30px;
    padding: 24px;
    background: #d4edda;
    border-radius: var(--vc-border-radius);
    border: 1px solid #c3e6cb;
    text-align: center;
}

.success-title {
    margin: 0 0 12px;
    font-size: 20px;
    font-weight: 600;
    color: #155724;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.success-icon {
    font-size: 24px;
}

.success-message {
    margin: 0 0 20px;
    color: #155724;
    font-size: 16px;
}

.success-details {
    margin-bottom: 24px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 4px;
    text-align: left;
}

.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.error-section {
    margin-bottom: 30px;
    padding: 24px;
    background: #f8d7da;
    border-radius: var(--vc-border-radius);
    border: 1px solid #f5c6cb;
    text-align: center;
}

.error-title {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 600;
    color: #721c24;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.error-icon {
    font-size: 20px;
}

.error-message {
    margin-bottom: 20px;
    color: #721c24;
    padding: 12px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 4px;
    font-size: 14px;
}

.supported-formats {
    margin: 20px 0 30px;
    text-align: center;
    padding: 20px;
    background: var(--vc-light-color);
    border-radius: 8px;
}

.supported-formats h3 {
    color: var(--vc-text-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-weight: 600;
}

.format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    max-width: 800px;
    margin: 0 auto;
}

.format-item {
    padding: 10px 15px;
    background: white;
    border: 1px solid var(--vc-border-color);
    border-radius: 4px;
    font-weight: 600;
    color: var(--vc-text-color);
    font-size: 0.9rem;
    transition: var(--vc-transition);
}

.format-item:hover {
    background: var(--vc-light-color);
    border-color: var(--vc-primary-color);
    color: var(--vc-primary-color);
    transform: translateY(-1px);
}

.user-guide-section {
    margin-top: 20px;
}

.guide-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--vc-dark-color);
    margin-bottom: 20px;
    align-items: center;
	text-align: center;
    border-bottom: 1px solid var(--vc-border-color);
    padding-bottom: 15px;
}

.guide-icon {
    font-size: 24px;
}

.guide-group {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--vc-light-color);
    border-radius: 8px;
    border: 1px solid var(--vc-border-color);
}

.guide-subtitle {
    font-size: 18px;
    font-weight: 600;
    color: var(--vc-text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.guide-emoji {
    font-size: 20px;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.guide-item {
    background: white;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.guide-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--vc-shadow-hover);
}

.guide-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.guide-item-header strong {
    color: var(--vc-dark-color);
    font-size: 16px;
}

.guide-badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.guide-badge.recommended { background: #d4edda; color: #155724; }
.guide-badge.mobile { background: #d1ecf1; color: #0c5460; }
.guide-badge.social { background: #fce4ec; color: #880e4f; }
.guide-badge.compress { background: #fff3cd; color: #856404; }
.guide-badge.quality { background: #e7e3ff; color: #4a148c; }
.guide-badge.streaming { background: #ffebee; color: #c62828; }
.guide-badge.web { background: #e3f2fd; color: #1565c0; }
.guide-badge.legacy { background: #f3e5f5; color: #7b1fa2; }
.guide-badge.apple { background: #e8f5e8; color: #2e7d32; }
.guide-badge.advanced { background: #fff8e1; color: #f57c00; }
.guide-badge.hd { background: #e1f5fe; color: #0277bd; }
.guide-badge.balanced { background: #f1f8e9; color: #558b2f; }

.guide-item-desc {
    color: var(--vc-text-muted);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 10px;
}

.guide-item-usage {
    font-size: 13px;
    color: var(--vc-text-color);
    background: var(--vc-light-color);
    padding: 8px;
    border-left: 3px solid var(--vc-primary-color);
}

.guide-explanation {
    background: var(--vc-border-color);
    padding: 12px;
    border-radius: var(--vc-border-radius);
    margin-bottom: 15px;
    color: var(--vc-text-color);
}

.guide-explanation p {
    margin: 0;
    font-size: 14px;
}

.guide-note {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    padding: 12px;
    border-radius: var(--vc-border-radius);
    margin-bottom: 15px;
}

.guide-note p {
    margin: 0;
    font-size: 15px;
    color: #856404;
}

.guide-subsection {
    margin-bottom: 20px;
}

.guide-subsection h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--vc-dark-color);
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #dee2e6;
}

.guide-simple-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.guide-simple-item {
    padding: 10px;
    background: white;
    border-left: 3px solid var(--vc-primary-color);
    font-size: 14px;
    color: var(--vc-text-color);
}

.guide-tips {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.guide-tip {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: white;
    border-radius: var(--vc-border-radius);
    border: 1px solid #dee2e6;
}

.tip-icon {
    font-size: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}

.tip-content {
    flex: 1;
    font-size: 14px;
    color: var(--vc-text-color);
    line-height: 1.4;
}

.tip-content strong {
    color: var(--vc-dark-color);
    display: block;
    margin-bottom: 4px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

.conversion-options-section,
.conversion-progress-section,
.success-section,
.error-section {
    animation: fadeIn 0.3s ease;
}

.upload-area.uploading .upload-icon {
    animation: pulse 1.5s infinite;
}

.convert-button.converting .button-icon {
    animation: pulse 1s infinite;
}

.upload-area.upload-disabled {
    background: #f5f5f5 !important;
    border-color: #d6d6d6 !important;
    cursor: not-allowed !important;
    opacity: 0.6 !important;
    pointer-events: none !important;
}

.upload-area.upload-disabled .upload-text {
    color: #999 !important;
}

.upload-area.upload-disabled .upload-subtext {
    color: #bbb !important;
}

.upload-area.upload-disabled:hover {
    transform: none !important;
    border-color: #d6d6d6 !important;
    background: #f5f5f5 !important;
}

.form-control:not(input) {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e") !important;
    background-position: right 11px center !important;
    background-repeat: no-repeat !important;
    background-size: 25px 20px !important;
    padding-right: 45px !important;	
}

@media (max-width: 768px) {
    .converter-title {
        font-size: 20px;
    }
    
    .upload-area {
        padding: 30px 16px;
    }
    
    .upload-text {
        font-size: 16px;
    }
    
    .options-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .preset-buttons {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 8px;
    }
    
    .preset-btn {
        padding: 10px 12px;
        font-size: 12px;
    }
    
    .convert-button {
        padding: 14px 24px;
        font-size: 14px;
    }
    
    .success-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .download-button,
    .convert-another-button {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .file-details,
    .progress-details,
    .success-details {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .format-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 8px;
    }
    
    .format-item {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .guide-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-item-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .guide-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .upload-area {
        padding: 24px 12px;
        min-height: 120px;
    }
    
    .upload-icon {
        font-size: 36px;
        margin-bottom: 12px;
    }
    
    .preset-buttons {
        grid-template-columns: 1fr;
    }
    
    .converter-title {
        font-size: 18px;
        flex-direction: column;
        gap: 4px;
    }
    
    .options-group {
        padding: 14px;
    }
    
    .group-title {
        font-size: 14px;
    }
    
    .format-grid {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 6px;
    }
    
    .format-item {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    
    .supported-formats h3 {
        font-size: 1.1rem;
    }
    
    .guide-tip {
        flex-direction: column;
        gap: 8px;
    }
    
    .tip-icon {
        align-self: flex-start;
    }
}

@media print {
    .video-converter-container {
        border: none;
        box-shadow: none;
    }
    
    .upload-area,
    .convert-button,
    .download-button,
    .convert-another-button,
    .retry-button {
        display: none;
    }
}