/**
 * EventPhotos - Main Stylesheet
 * Elegant Rose Gold Theme
 */

/* CSS Variables */
:root {
    /* Colors */
    --rose-gold: #b76e79;
    --rose-gold-light: #d4a5a5;
    --rose-gold-dark: #8b4f57;
    --cream: #faf8f5;
    --cream-dark: #f0ebe3;
    --charcoal: #2d2d2d;
    --charcoal-light: #4a4a4a;
    --white: #ffffff;
    --error: #dc3545;
    --error-light: #f8d7da;
    --success: #28a745;
    --success-light: #d4edda;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --cream: #1a1a1a;
        --cream-dark: #2d2d2d;
        --charcoal: #f0ebe3;
        --charcoal-light: #d4d4d4;
        --white: #242424;
    }
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--cream);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Page Wrapper */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--charcoal);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--rose-gold);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--rose-gold-dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background-color: var(--rose-gold-dark);
    border-color: var(--rose-gold-dark);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-large svg {
    width: 22px;
    height: 22px;
}

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-error {
    background-color: var(--error-light);
    color: var(--error);
}

.alert-success {
    background-color: var(--success-light);
    color: var(--success);
}

/* Landing Page */
.landing-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.logo-section {
    margin-bottom: var(--spacing-xxl);
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    color: var(--rose-gold);
}

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

.logo-text {
    font-size: 3rem;
    font-weight: 700;
    color: var(--rose-gold);
    margin-bottom: var(--spacing-sm);
}

.tagline {
    font-size: 1rem;
    color: var(--charcoal-light);
    font-weight: 300;
}

.code-section {
    width: 100%;
}

.code-section h2 {
    margin-bottom: var(--spacing-sm);
}

.instruction {
    color: var(--charcoal-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
}

.code-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.input-wrapper {
    position: relative;
}

.code-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 500;
    text-align: center;
    letter-spacing: 4px;
    text-transform: uppercase;
    border: 2px solid var(--cream-dark);
    border-radius: var(--radius-md);
    background-color: var(--white);
    transition: border-color var(--transition-fast);
}

.code-input:focus {
    outline: none;
    border-color: var(--rose-gold);
}

.code-input::placeholder {
    font-size: 0.875rem;
    letter-spacing: 0;
    text-transform: none;
    color: var(--charcoal-light);
}

.qr-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--cream-dark);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    color: var(--charcoal-light);
}

.qr-hint svg {
    width: 24px;
    height: 24px;
    color: var(--rose-gold);
}

.landing-footer {
    margin-top: var(--spacing-xxl);
    font-size: 0.8rem;
    color: var(--charcoal-light);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--white);
    border-bottom: 1px solid var(--cream-dark);
}

.back-link,
.gallery-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
}

.back-link svg,
.gallery-link svg {
    width: 18px;
    height: 18px;
}

/* Upload Container */
.upload-container {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.event-info {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.event-title {
    color: var(--rose-gold);
    margin-bottom: var(--spacing-sm);
}

.event-description {
    color: var(--charcoal-light);
    margin-bottom: var(--spacing-sm);
}

.event-date {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--charcoal-light);
}

.event-date svg {
    width: 16px;
    height: 16px;
}

/* Upload Form */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.name-field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.name-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--cream-dark);
    border-radius: var(--radius-md);
    background-color: var(--white);
    transition: border-color var(--transition-fast);
}

.name-input:focus {
    outline: none;
    border-color: var(--rose-gold);
}

/* Upload Zone */
.upload-zone {
    position: relative;
    padding: var(--spacing-xxl) var(--spacing-lg);
    border: 2px dashed var(--rose-gold-light);
    border-radius: var(--radius-lg);
    background-color: var(--white);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--rose-gold);
    background-color: rgba(183, 110, 121, 0.05);
}

.upload-zone.drag-over {
    transform: scale(1.02);
}

.file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    color: var(--rose-gold);
}

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

.upload-content h3 {
    margin-bottom: var(--spacing-xs);
}

.upload-content p {
    color: var(--charcoal-light);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* Preview Section */
.preview-section {
    display: none;
}

.preview-section.active {
    display: block;
}

.preview-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-sm);
}

.preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
}

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

.preview-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.preview-remove:hover {
    background-color: var(--error);
}

.preview-remove svg {
    width: 14px;
    height: 14px;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--rose-gold);
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-lg);
    animation: spin 1s linear infinite;
}

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

.loading-progress {
    width: 200px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-top: var(--spacing-md);
}

.progress-bar {
    height: 100%;
    background-color: var(--rose-gold);
    width: 0;
    transition: width var(--transition-normal);
}

/* Gallery */
.gallery-container {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.gallery-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.gallery-header h1 {
    color: var(--rose-gold);
    margin-bottom: var(--spacing-xs);
}

.photo-count {
    color: var(--charcoal-light);
    font-size: 0.9rem;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    color: var(--charcoal-light);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--charcoal-light);
    margin-bottom: var(--spacing-lg);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-item:hover .photo-overlay {
    opacity: 1;
}

.photo-uploader {
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-close svg {
    width: 28px;
    height: 28px;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: var(--white);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.lightbox-nav:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: var(--spacing-lg);
}

.lightbox-next {
    right: var(--spacing-lg);
}

.lightbox-nav svg {
    width: 24px;
    height: 24px;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: calc(90vh - 60px);
    object-fit: contain;
}

.lightbox-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    color: var(--white);
    font-size: 0.9rem;
}

.lightbox-uploader {
    opacity: 0.8;
}

.lightbox-counter {
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    .logo-text {
        font-size: 2.25rem;
    }

    .landing-container {
        padding: var(--spacing-lg);
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }

    .lightbox-nav {
        width: 36px;
        height: 36px;
    }

    .lightbox-prev {
        left: var(--spacing-sm);
    }

    .lightbox-next {
        right: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .quick-actions {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .lightbox-nav {
        display: none;
    }
}