/**
 * WEBP-CONVERTER.CSS - JPG/PNG to WebP Converter Styles
 * Matches website design pattern
 */

/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --bg: #f7f7f8;
    --bg-white: #ffffff;
    --text: #18181b;
    --text-secondary: #71717a;
    --border: #e5e5e5;
    --border-light: #f0f0f0;
    --success: #22c55e;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

/* Header */
.header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 64px;
}

.back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
}

.back-btn:hover {
    background: var(--bg);
}

.back-btn svg {
    width: 20px;
    height: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.logo__icon {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.logo__text {
    font-weight: 700;
    font-size: 18px;
}

.nav {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.nav__link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.nav__link:hover {
    color: var(--text);
    background: var(--bg);
}

.nav__link--active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

/* Page States */
.page {
    display: none;
    padding: 40px 0;
    min-height: calc(100vh - 64px - 200px);
}

.page.active {
    display: block;
}

/* Upload Page */
.upload-box {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.upload-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.upload-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.highlight {
    color: var(--primary);
    font-weight: 600;
}

.dropzone {
    background: var(--bg-white);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 60px 40px;
    cursor: pointer;
    transition: var(--transition);
}

.dropzone:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.02);
}

.dropzone__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.dropzone__icon {
    width: 80px;
    height: 80px;
    color: var(--primary);
}

.dropzone__icon svg {
    width: 100%;
    height: 100%;
}

.dropzone__text {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.dropzone__cta {
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
}

.dropzone__cta:hover {
    text-decoration: underline;
}

.dropzone__hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.trust-badge svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
}

/* Convert Page */
.convert-container {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 24px;
    align-items: start;
}

.convert-main {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.convert-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.convert-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.add-more-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.add-more-btn:hover {
    background: var(--border);
}

.add-more-btn svg {
    width: 16px;
    height: 16px;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}

.image-card {
    position: relative;
    background: var(--bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 1;
}

.image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-card__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: 24px 10px 10px;
    color: white;
}

.image-card__name {
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-card__meta {
    font-size: 10px;
    opacity: 0.8;
}

.image-card__remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    background: rgba(0,0,0,0.5);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.image-card:hover .image-card__remove {
    opacity: 1;
}

.image-card__remove svg {
    width: 14px;
    height: 14px;
}

/* Settings Panel */
.settings-panel {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 88px;
}

.settings-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
}

.settings-group {
    margin-bottom: 20px;
}

.settings-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

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

/* Format Display */
.format-display {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-sm);
}

.format-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.format-icon svg {
    width: 20px;
    height: 20px;
}

.format-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

.format-badge {
    margin-left: auto;
    font-size: 11px;
    font-weight: 500;
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Quality Slider */
.quality-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
}

.quality-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 3px;
    outline: none;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

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

.quality-hints {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
}

.checkbox-label input:checked + .checkbox-custom {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-label input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
}

.settings-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Convert Button */
.convert-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    margin-bottom: 16px;
}

.convert-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.convert-btn svg {
    width: 20px;
    height: 20px;
}

/* Savings Estimate */
.savings-estimate {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(34, 197, 94, 0.1);
    border-radius: var(--radius-sm);
    color: var(--success);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.savings-estimate svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Privacy Note */
.privacy-note {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.privacy-note svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* Download Page */
.download-box {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--success);
}

.success-icon svg {
    width: 100%;
    height: 100%;
}

.download-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-info {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Savings Summary */
.savings-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.savings-item {
    text-align: center;
}

.savings-label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.savings-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.savings-value--new {
    color: var(--success);
}

.savings-arrow {
    color: var(--text-secondary);
}

.savings-arrow svg {
    width: 24px;
    height: 24px;
}

.savings-percent {
    background: var(--success);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Converted Grid */
.converted-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.converted-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg);
}

.converted-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.converted-item__download {
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 28px;
    height: 28px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.converted-item:hover .converted-item__download {
    opacity: 1;
}

.converted-item__download svg {
    width: 14px;
    height: 14px;
}

/* Download Actions */
.download-actions {
    margin-bottom: 24px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.download-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.download-btn svg {
    width: 20px;
    height: 20px;
}

/* Share Section */
.share-section {
    margin-bottom: 24px;
}

.share-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.share-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.share-btn svg {
    width: 20px;
    height: 20px;
}

.share-btn--twitter {
    background: #1da1f2;
    color: white;
}

.share-btn--whatsapp {
    background: #25d366;
    color: white;
}

.share-btn--copy {
    background: var(--bg);
    color: var(--text);
}

.share-btn:hover {
    transform: scale(1.1);
}

/* More Actions */
.more-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.link-btn {
    color: var(--primary);
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
}

.link-btn:hover {
    text-decoration: underline;
}

.divider {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Processing Overlay */
.processing {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.processing.active {
    display: flex;
}

.processing__content {
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.processing__text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.processing__count {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.progress-bar-container {
    width: 200px;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin: 0 auto;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    width: 0;
    transition: width 0.3s;
}

/* Testimonials */
.testimonials {
    padding: 60px 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border);
}

.testimonials__title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 24px;
}

.testimonial__stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.testimonial__text {
    font-size: 0.875rem;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.6;
}

.testimonial__author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial__avatar {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.testimonial__name {
    font-weight: 600;
    font-size: 0.875rem;
}

.testimonial__role {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    padding: 24px 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border);
}

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

.footer__text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.footer__links a:hover {
    color: var(--primary);
}

/* Responsive */
@media (max-width: 900px) {
    .convert-container {
        grid-template-columns: 1fr;
    }
    
    .settings-panel {
        position: static;
    }
    
    .testimonials__grid {
        grid-template-columns: 1fr;
    }
    
    .savings-summary {
        flex-wrap: wrap;
        gap: 16px;
    }
}

@media (max-width: 600px) {
    .upload-title {
        font-size: 1.75rem;
    }
    
    .nav {
        display: none;
    }
    
    .trust-badges {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .dropzone {
        padding: 40px 20px;
    }
    
    .footer__inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}