/* ==========================================================================
   Template: Lens - Premium Photography Portfolio
   Version: 3.0.0
   Author: SellWebsites
   Identity: Minimal, Artistic, Gallery-focused
   Colors: Pure black/white with subtle warm accents
   ========================================================================== */

/* ==========================================================================
   CSS CUSTOM PROPERTIES
   ========================================================================== */

:root {
    /* Primary - Pure Black (Elegant/Timeless) */
    --color-primary-50: #fafafa;
    --color-primary-100: #f5f5f5;
    --color-primary-200: #e5e5e5;
    --color-primary-300: #d4d4d4;
    --color-primary-400: #a3a3a3;
    --color-primary-500: #737373;
    --color-primary-600: #525252;
    --color-primary-700: #404040;
    --color-primary-800: #262626;
    --color-primary-900: #171717;
    --color-primary-950: #0a0a0a;

    /* Accent - Warm Gold (Subtle luxury) */
    --color-accent-400: #fbbf24;
    --color-accent-500: #f59e0b;
    --color-accent-600: #d97706;

    /* Semantic Colors */
    --color-success: #22c55e;
    --color-error: #ef4444;

    /* Light Mode (Default) */
    --color-background: #ffffff;
    --color-surface: #fafafa;
    --color-surface-elevated: #ffffff;
    --color-text-primary: #0a0a0a;
    --color-text-secondary: #525252;
    --color-text-tertiary: #a3a3a3;
    --color-border: #e5e5e5;
    --color-border-light: #f5f5f5;

    /* Typography Scale */
    --text-hero: clamp(3rem, 10vw, 6rem);
    --text-display: clamp(2.5rem, 6vw, 4.5rem);
    --text-h1: clamp(2rem, 4vw, 3rem);
    --text-h2: clamp(1.5rem, 3vw, 2.25rem);
    --text-h3: clamp(1.25rem, 2vw, 1.5rem);
    --text-body: 1rem;
    --text-small: 0.875rem;
    --text-xs: 0.75rem;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

    /* Spacing Scale (8px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Border Radius - Minimal for photography */
    --radius-none: 0;
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.375rem;
    --radius-xl: 0.5rem;
    --radius-full: 9999px;

    /* Shadows - Light Mode */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 700ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-reveal: 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   DARK MODE
   ========================================================================== */

.dark {
    --color-background: #0a0a0a;
    --color-surface: #171717;
    --color-surface-elevated: #262626;
    --color-text-primary: #fafafa;
    --color-text-secondary: #d4d4d4;
    --color-text-tertiary: #737373;
    --color-border: #262626;
    --color-border-light: #171717;

    /* Shadows - Dark Mode */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-body);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ==========================================================================
   TYPOGRAPHY UTILITIES
   ========================================================================== */

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

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

.text-hero {
    font-size: var(--text-hero);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.text-display {
    font-size: var(--text-display);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

/* Serif heading style for photography */
.serif-heading {
    font-family: var(--font-display);
    font-weight: 400;
    font-style: italic;
    letter-spacing: -0.02em;
}

/* Mono text for EXIF data, dates */
.mono-text {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

.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;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text-primary);
    color: var(--color-background);
    padding: var(--space-3) var(--space-6);
    font-weight: 500;
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-4);
}

:focus-visible {
    outline: 2px solid var(--color-text-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-reveal);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all var(--transition-reveal);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: all var(--transition-reveal);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ==========================================================================
   UNIQUE: PHOTOGRAPHY COMPONENTS
   ========================================================================== */

/* Gallery Grid - Clean minimal */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1px;
    background: var(--color-border);
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--color-surface);
    cursor: pointer;
}

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

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

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
    background: rgba(0, 0, 0, 0.7);
    opacity: 1;
}

.gallery-overlay-content {
    color: white;
    text-align: center;
    transform: translateY(10px);
    transition: transform var(--transition-base);
}

.gallery-item:hover .gallery-overlay-content {
    transform: translateY(0);
}

/* Masonry Grid */
.masonry-grid {
    column-count: 1;
    column-gap: var(--space-4);
}

@media (min-width: 640px) {
    .masonry-grid { column-count: 2; }
}

@media (min-width: 1024px) {
    .masonry-grid { column-count: 3; }
}

@media (min-width: 1536px) {
    .masonry-grid { column-count: 4; }
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: var(--space-4);
    position: relative;
    overflow: hidden;
}

.masonry-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition-slower);
}

.masonry-item:hover img {
    transform: scale(1.02);
}

/* Film Strip Border Effect */
.film-border {
    position: relative;
    padding: var(--space-4);
    background: var(--color-text-primary);
}

.film-border::before,
.film-border::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 24px;
    background: repeating-linear-gradient(
        to bottom,
        transparent,
        transparent 8px,
        var(--color-background) 8px,
        var(--color-background) 12px
    );
}

.film-border::before { left: 0; }
.film-border::after { right: 0; }

/* Photo Frame Effect */
.photo-frame {
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.photo-frame img {
    display: block;
    width: 100%;
}

.photo-frame-caption {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.dark .photo-frame {
    background: var(--color-surface);
    border-color: var(--color-border);
}

/* EXIF Data Display */
.exif-data {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.exif-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.exif-label {
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.exif-value {
    color: var(--color-text-primary);
    font-weight: 500;
}

.dark .exif-data {
    background: var(--color-surface);
    border-color: var(--color-border);
}

/* Camera/Lens Badge */
.gear-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-text-primary);
    color: var(--color-background);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dark .gear-badge {
    background: var(--color-background);
    color: var(--color-text-primary);
}

/* Portfolio Category Filter */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
}

.filter-tab {
    padding: var(--space-2) var(--space-6);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: var(--text-small);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--color-text-primary);
    border-color: var(--color-text-primary);
    color: var(--color-background);
}

.dark .filter-tab:hover,
.dark .filter-tab.active {
    background: var(--color-background);
    border-color: var(--color-background);
    color: var(--color-text-primary);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-image {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
    opacity: 0.7;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.lightbox-nav:hover {
    opacity: 0.7;
}

.lightbox-prev { left: var(--space-6); }
.lightbox-next { right: var(--space-6); }

/* Photographer Profile Card */
.photographer-card {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-8);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.photographer-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.photographer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photographer-info h3 {
    font-family: var(--font-display);
    font-size: var(--text-h3);
    margin-bottom: var(--space-1);
}

.photographer-location {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.dark .photographer-card {
    background: var(--color-surface);
    border-color: var(--color-border);
}

/* Hero Fullscreen */
.hero-fullscreen {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-fullscreen img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.5) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: var(--space-8);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-weight: 500;
    font-size: var(--text-small);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    opacity: 0.8;
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-text-primary);
}

.btn-secondary:hover {
    background: var(--color-text-primary);
    color: var(--color-background);
}

.dark .btn-primary {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.dark .btn-secondary {
    border-color: var(--color-background);
    color: var(--color-text-primary);
}

.dark .btn-secondary:hover {
    background: var(--color-background);
    color: var(--color-surface);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.nav-minimal {
    border-bottom: 1px solid var(--color-border);
    background: var(--color-background);
}

.dark .nav-minimal {
    border-color: var(--color-border);
    background: var(--color-background);
}

.nav-blur {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* ==========================================================================
   FORMS
   ========================================================================== */

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    background: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-text-primary);
}

.dark .form-input {
    background: var(--color-surface);
    border-color: var(--color-border);
}

.dark .form-input:focus {
    border-color: var(--color-text-secondary);
}

/* ==========================================================================
   SELECTION & SCROLLBAR
   ========================================================================== */

::selection {
    background: var(--color-text-primary);
    color: var(--color-background);
}

.dark ::selection {
    background: var(--color-background);
    color: var(--color-text-primary);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-tertiary);
}

.dark ::-webkit-scrollbar-track {
    background: var(--color-background);
}

.dark ::-webkit-scrollbar-thumb {
    background: var(--color-border);
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    nav, footer, .no-print {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .gallery-grid {
        display: block;
    }

    .gallery-item {
        break-inside: avoid;
        margin-bottom: 1rem;
    }
}

/* ==========================================================================
   PERFORMANCE
   ========================================================================== */

section {
    content-visibility: auto;
    contain-intrinsic-size: 0 500px;
}

.gallery-item img,
.masonry-item img {
    will-change: transform;
}