/* ============================================
   CSS Variables - iOS Design System
   ============================================ */
:root {
    /* Colors */
    --color-bg-primary: #000000;
    --color-bg-secondary: #1c1c1e;
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(235, 235, 245, 0.6);
    --color-accent-pink: #ff375f;
    --color-accent-pink-glow: rgba(255, 55, 95, 0.4);
    --color-accent-blue: #0a84ff;

    /* Glassmorphism */
    --glass-bg: rgba(30, 30, 30, 0.65);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 25px;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 48px;

    /* Border Radius */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-pill: 999px;

    /* Transitions */
    --transition-smooth: cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Safe Area */
    --safe-top: env(safe-area-inset-top, 20px);
    --safe-bottom: env(safe-area-inset-bottom, 20px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Pattern - Subtle moving aesthetics */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(255, 55, 95, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(10, 132, 255, 0.08), transparent 25%);
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
}

/* ============================================
   Header
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    border-bottom: 0.5px solid var(--glass-border);
    border-bottom: 0.5px solid var(--glass-border);
    padding: calc(var(--spacing-sm) + var(--safe-top)) var(--spacing-md) var(--spacing-sm);
    transition: all 0.3s ease;
}

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

.header-title {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.4px;
    opacity: 0.9;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    color: var(--color-text-primary);
    cursor: pointer;
    width: 44px;
    /* Increased for touch target */
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--transition-smooth);
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.icon-btn:active {
    transform: scale(0.95);
    background: rgba(255, 255, 255, 0.2);
}

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

.btn-admin {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s var(--transition-smooth);
    white-space: nowrap;
}

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

.btn-admin:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.btn-admin:active {
    transform: scale(0.95);
}

@media (max-width: 480px) {
    .btn-admin span {
        display: none;
    }

    .btn-admin {
        padding: 8px 10px;
    }
}

/* ============================================
   Container
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-md);
    padding-bottom: calc(100px + var(--safe-bottom));
    padding-left: calc(var(--spacing-md) + var(--safe-left));
    padding-right: calc(var(--spacing-md) + var(--safe-right));
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    text-align: center;
    margin-bottom: 60px;
    padding: 60px 0 20px;
    position: relative;
}

.hero-title {
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -1px;
    line-height: 1.1;
    background: linear-gradient(90deg,
            var(--color-text-primary) 0%,
            var(--color-accent-pink) 50%,
            var(--color-accent-blue) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shine 5s linear infinite;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

/* ============================================
   Category Switch (Segmented Control)
   ============================================ */
.category-switch-container {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    width: 100%;
}

.category-switch {
    background: rgba(118, 118, 128, 0.24);
    border-radius: 9px;
    padding: 2px;
    display: flex;
    position: relative;
    width: 90%;
    max-width: 320px;
    user-select: none;
    height: 36px;
}

.category-btn {
    flex: 1;
    border: none;
    background: none;
    color: var(--color-text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    z-index: 1;
    transition: color 0.2s ease;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-btn.active {
    font-weight: 600;
}

.category-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: calc(50% - 2px);
    height: calc(100% - 4px);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 0.5px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.12);
    border-radius: 7px;
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Adjust slider position based on active index */
.category-switch:has(.category-btn[data-category="card"].active) .category-slider {
    transform: translateX(100%);
}

/* ============================================
   Stats Section Refinement
   ============================================ */
.stats {
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xs);
}

.stats .btn-primary {
    display: block;
}


/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    letter-spacing: -0.3px;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: var(--color-accent-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(10, 132, 255, 0.4);
}

.btn-primary:hover {
    background: #0071e3;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(10, 132, 255, 0.6);
}

/* ============================================
   Stats Section
   ============================================ */
.stats {
    margin-bottom: 40px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    padding: 0 var(--spacing-xs);
}

.stats-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.stats-count {
    font-size: 15px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ============================================
   Gallery Grid
   ============================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    padding-bottom: 20px;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

/* ============================================
   Image Card
   ============================================ */
.image-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.4s var(--transition-smooth);
    cursor: pointer;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
    transform: translateY(20px);
}

/* Scroll Animation Class */
.image-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.image-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5),
        0 0 20px -5px var(--color-accent-pink-glow);
    border-color: rgba(255, 55, 95, 0.3);
    z-index: 10;
}

.image-card-header {
    padding: 10px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.image-card-number {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent-pink);
    letter-spacing: 0.5px;
}

.sparkle-icon {
    width: 14px;
    height: 14px;
    color: #ffd60a;
    filter: drop-shadow(0 0 5px rgba(255, 214, 10, 0.5));
}

.image-card-body {
    aspect-ratio: 9 / 16;
    position: relative;
    overflow: hidden;
    background: #111;
}

.image-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition-smooth);
    will-change: transform;
}

.image-card:hover .image-card-img {
    transform: scale(1.08);
}

.image-card-footer {
    padding: 12px;
    background: rgba(30, 30, 30, 0.5);
    text-align: center;
    backdrop-filter: blur(5px);
    /* Initially visible on desktop, hidden on compact mobile */
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5px;
        /* Minimalist modern gap */
        margin: 0 -16px;
        /* Bleed to edges */
    }

    .image-card {
        border-radius: 0;
        /* Square edges for photo grid */
        border: none;
    }

    .image-card-header,
    .image-card-footer {
        display: none;
        /* Hide UI on small grid for cleaner look */
    }
}

.footer-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    margin-bottom: 4px;
    display: block;
}

.upload-time {
    color: var(--color-text-primary);
    font-size: 13px;
    font-weight: 600;
    font-feature-settings: "tnum";
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ============================================
   Responsive Tweaks
   ============================================ */
@media (max-width: 480px) {
    .container {
        padding: 20px 16px;
        padding-bottom: calc(100px + var(--safe-bottom));
        padding-left: calc(16px + var(--safe-left));
        padding-right: calc(16px + var(--safe-right));
    }

    .hero {
        padding: 30px 0 10px;
        margin-bottom: 40px;
    }

    .hero-title {
        font-size: 28px;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .stats-count {
        margin-bottom: 0;
        font-size: 14px;
    }
}

/* ============================================
   Crop Modal
   ============================================ */
.crop-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.crop-modal.active {
    display: flex;
}

.crop-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.crop-modal-content {
    position: relative;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s var(--transition-smooth);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.crop-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.crop-modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.crop-modal-close {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--color-text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s var(--transition-smooth);
}

.crop-modal-close:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: rotate(90deg);
}

.crop-modal-body {
    padding: 32px 24px;
}

.crop-upload-area {
    text-align: center;
    padding: 40px 20px;
}

.crop-size-selector {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
}

.size-option {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.2s var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 8px;
}

.size-option:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.size-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.size-option input[type="radio"]:checked+span {
    color: var(--color-accent-blue);
    font-weight: 600;
}

.size-option span {
    font-size: 14px;
    transition: all 0.2s var(--transition-smooth);
}

.crop-upload-hint {
    margin-top: 16px;
    color: var(--color-text-secondary);
    font-size: 14px;
}

.crop-preview-area {
    text-align: center;
}

.cropper-container-wrapper {
    margin-bottom: 24px;
    max-height: 60vh;
    overflow: hidden;
    position: relative;
}

.bg-removal-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    gap: 16px;
}

.bg-removal-loading p {
    color: var(--color-text-primary);
    font-size: 16px;
    font-weight: 500;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

#cropperImage {
    max-width: 100%;
    display: block;
}

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

@media (max-width: 480px) {
    .crop-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .crop-modal-header {
        padding: 16px 20px;
    }

    .crop-modal-body {
        padding: 24px 20px;
    }

    .crop-actions {
        flex-direction: column;
    }

    .crop-actions .btn {
        width: 100%;
    }
}