/**
 * Wedding Photo Carousel - Main Styles
 * 
 * Mobile-first responsive design with elegant wedding aesthetic.
 */

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-display);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

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

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

a:hover {
    color: var(--color-accent);
}

/* Layout containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.container-sm {
    max-width: 600px;
}

.container-lg {
    max-width: 1400px;
}

/* Header */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.header-logo {
    height: 64px;
    width: auto;
    object-fit: contain;
}

.header-title {
    font-family: var(--font-family-display);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin: 0;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-family: inherit;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    box-sizing: border-box;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: white;
}

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

.btn-accent:hover:not(:disabled) {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
}

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

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

.btn-danger {
    background-color: var(--color-error);
    color: var(--color-surface);
    border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background-color: #B43D3D;
    border-color: #B43D3D;
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* Form elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-light);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

/* Toggle switch */
.toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.toggle-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    width: 48px;
    height: 26px;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    position: relative;
    transition: background-color var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background-color: var(--color-surface);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-input:checked+.toggle-slider {
    background-color: var(--color-primary);
}

.toggle-input:checked+.toggle-slider::before {
    transform: translateX(22px);
}

.toggle-input:focus+.toggle-slider {
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

/* Upload zone */
.upload-zone {
    border: 3px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    background-color: var(--color-surface);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--color-accent);
    background-color: rgba(212, 175, 55, 0.05);
}

.upload-zone-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.upload-zone-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.upload-zone-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* Hero section */
.hero {
    position: relative;
    overflow: hidden;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-2xl);
    background-color: var(--color-background);
}

.hero::before {
    content: '';
    position: absolute;
    top: -60%;
    left: 50%;
    transform: translateX(-50%);
    width: 160%;
    height: 220%;
    background: radial-gradient(circle at center, var(--color-primary) 0%, transparent 65%);
    opacity: 0.07;
    pointer-events: none;
}

.hero-eyebrow {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-family-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.15;
    margin-bottom: var(--spacing-md);
}

.hero-tagline {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 480px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.hero-divider {
    width: 48px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 0 auto;
    border-radius: var(--radius-full);
}

/* Photo masonry grid */
.photo-masonry {
    column-count: 2;
    column-gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .photo-masonry {
        column-count: 3;
        column-gap: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .photo-masonry {
        column-count: 4;
    }
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: var(--spacing-sm);
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-border);
    cursor: pointer;
}

@media (min-width: 640px) {
    .masonry-item {
        margin-bottom: var(--spacing-md);
    }
}

.masonry-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}

.masonry-item:hover img {
    transform: scale(1.03);
}

.masonry-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.72));
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-sm);
    color: white;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.masonry-item:hover .masonry-item-overlay {
    opacity: 1;
}

.masonry-item-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.masonry-item-caption {
    font-size: var(--font-size-xs);
    opacity: 0.85;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

/* Watermark bar on masonry items */
.masonry-watermark-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 22px;
    background: rgba(255, 255, 255, 0.88);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 6px;
    pointer-events: none;
}

.masonry-watermark-logo {
    height: 13px;
    width: auto;
    object-fit: contain;
}

/* Keep legacy photo-grid for any remaining uses */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .photo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .photo-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.photo-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-border);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.photo-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

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

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

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

.photo-item-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.photo-item-caption {
    font-size: var(--font-size-xs);
    opacity: 0.9;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.lightbox-content {
    max-width: 100%;
    max-height: 100%;
    position: relative;
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.lightbox-close {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
    z-index: calc(var(--z-modal) + 1);
}

.lightbox-close:hover {
    background-color: rgba(0, 0, 0, 0.85);
}

.lightbox-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: var(--spacing-lg);
    color: white;
}

.lightbox-name {
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.lightbox-caption {
    font-size: var(--font-size-base);
    opacity: 0.9;
}

/* Slideshow */
.slideshow {
    position: fixed;
    inset: 0;
    background-color: black;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slideshow-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Ken Burns animation */
.slideshow-image.ken-burns {
    animation: kenBurns 8s ease-in-out infinite;
}

@keyframes kenBurns {
    0% {
        transform: scale(1) translate(0, 0);
    }

    50% {
        transform: scale(1.1) translate(-2%, -1%);
    }

    100% {
        transform: scale(1) translate(0, 0);
    }
}

/* Fade transition */
.slideshow-image.fade-enter {
    opacity: 0;
}

.slideshow-image.fade-enter-active {
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

.slideshow-image.fade-exit {
    opacity: 1;
}

.slideshow-image.fade-exit-active {
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-fast);
}

/* Preview thumbnails */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

@media (min-width: 640px) {
    .preview-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

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

.preview-item-remove {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background-color: var(--color-error);
    color: white;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.preview-item:hover .preview-item-remove {
    opacity: 1;
}

/* Alerts and messages */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background-color: rgba(77, 175, 110, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background-color: rgba(212, 77, 77, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-info {
    background-color: rgba(45, 90, 61, 0.1);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background-color: var(--color-surface);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-md);
    z-index: var(--z-modal);
}

/* Admin panel specific */
.admin-sidebar {
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    min-height: 100vh;
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: background-color var(--transition-fast);
    margin-bottom: var(--spacing-xs);
}

.admin-nav-item:hover,
.admin-nav-item.active {
    background-color: rgba(45, 90, 61, 0.1);
    color: var(--color-primary);
}

/* Colour picker */
.color-picker-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.color-picker {
    width: 50px;
    height: 50px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 0;
    overflow: hidden;
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
}

.color-value {
    font-family: monospace;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Passphrase gate */
.passphrase-gate {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.passphrase-form {
    background-color: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.passphrase-form-logo {
    max-width: 150px;
    height: auto;
    margin-bottom: var(--spacing-lg);
}

/* Responsive utilities */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 639px) {
    .hidden-mobile {
        display: none !important;
    }
}

@media (min-width: 640px) {
    .hidden-desktop {
        display: none !important;
    }
}

/* Text utilities */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-lg {
    font-size: var(--font-size-lg);
}

/* Spacing utilities */
.mb-0 {
    margin-bottom: 0;
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

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

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

/* Flex utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

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

.justify-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.mt-2xl {
    margin-top: var(--spacing-2xl);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.text-xs {
    font-size: var(--font-size-xs);
}

.font-display {
    font-family: var(--font-family-display);
}