/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    /* Colors — neutral, warm, Apple-esque */
    --color-bg: #fafafa;
    --color-bg-alt: #f5f5f7;
    --color-surface: #ffffff;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #86868b;
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-border: rgba(0, 0, 0, 0.06);
    --color-overlay: rgba(0, 0, 0, 0.85);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 10rem;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.4s;
    --duration-slow: 0.8s;
    --duration-slower: 1.2s;

    /* Layout */
    --max-width: 1400px;
    --nav-height: 52px;
}


/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}


/* ============================================
   NAVIGATION
   ============================================ */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-height);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    background-color: rgba(250, 250, 250, 0.72);
    border-bottom: 0.5px solid var(--color-border);
    transition: transform var(--duration-normal) var(--ease-out-expo),
                background-color var(--duration-normal) var(--ease-out-expo);
}

#main-nav.nav-hidden {
    transform: translateY(-100%);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    transition: opacity var(--duration-fast);
}

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

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
    letter-spacing: 0.01em;
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-menu-btn span {
    width: 18px;
    height: 1.5px;
    background: var(--color-text-primary);
    border-radius: 1px;
    transition: transform var(--duration-normal) var(--ease-out-expo),
                opacity var(--duration-fast);
}

.nav-menu-btn.active span:first-child {
    transform: translateY(3.25px) rotate(45deg);
}

.nav-menu-btn.active span:last-child {
    transform: translateY(-3.25px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: rgba(250, 250, 250, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    color: var(--color-text-primary);
    transform: translateY(20px);
    opacity: 0;
    transition: transform var(--duration-slow) var(--ease-out-expo),
                opacity var(--duration-slow) var(--ease-out-expo),
                color var(--duration-fast);
}

.mobile-menu.active .mobile-link {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.15s; }

.mobile-link:hover {
    color: var(--color-text-secondary);
}


/* ============================================
   HERO SECTION
   ============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
    background: var(--color-bg);
}

.hero-content {
    max-width: 820px;
    text-align: center;
}

.hero-eyebrow {
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.2s forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.hero-title em {
    font-style: italic;
    color: var(--color-text-tertiary);
}

.hero-line {
    display: block;
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp var(--duration-slower) var(--ease-out-expo) forwards;
}

.hero-line:nth-child(1) { animation-delay: 0.3s; }
.hero-line:nth-child(2) { animation-delay: 0.4s; }
.hero-line:nth-child(3) { animation-delay: 0.5s; }
.hero-line:nth-child(4) { animation-delay: 0.6s; }

.hero-subtitle {
    font-size: 1.0625rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    max-width: 540px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.8s forwards;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--color-accent);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 1s forwards;
    transition: gap var(--duration-normal) var(--ease-out-expo);
}

.hero-cta:hover {
    gap: var(--space-sm);
}

.hero-cta svg {
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.hero-cta:hover svg {
    transform: translateY(4px);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn var(--duration-slow) var(--ease-out-expo) 1.4s forwards;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-text-tertiary), transparent);
    animation: scrollPulse 2s var(--ease-out-expo) infinite;
}


/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}

.section-eyebrow {
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}


/* ============================================
   CATEGORY FILTER
   ============================================ */
.category-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 var(--space-lg) var(--space-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.filter-btn {
    font-size: 0.8125rem;
    font-weight: 400;
    padding: 8px 20px;
    border-radius: 980px;
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid transparent;
    transition: all var(--duration-normal) var(--ease-out-expo);
    cursor: pointer;
    white-space: nowrap;
}

.filter-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-alt);
}

.filter-btn.active {
    color: var(--color-text-primary);
    background: var(--color-surface);
    border-color: var(--color-border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}


/* ============================================
   GALLERY GRID
   ============================================ */
.gallery-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg) var(--space-3xl);
    columns: 3;
    column-gap: 16px;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 16px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.gallery-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item.hiding {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                transform var(--duration-normal) var(--ease-out-expo);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 1s var(--ease-out-expo);
}

.gallery-item:hover img {
    transform: scale(1.025);
}

.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0) 50%);
    opacity: 0;
    transition: opacity 0.6s var(--ease-out-expo);
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
}

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

.gallery-item-label {
    font-size: 0.8125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.01em;
}

.gallery-item-sublabel {
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 2px;
}

/* Image protection */
.image-shield {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: transparent;
}

.gallery-item img,
.lightbox-image {
    -webkit-user-drag: none;
    user-select: none;
    -webkit-user-select: none;
    pointer-events: none;
}


/* ============================================
   ABOUT SECTION
   ============================================ */
#about {
    background: var(--color-bg-alt);
    padding: var(--space-3xl) var(--space-lg);
}

.about-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-portrait {
    display: flex;
    justify-content: center;
}

.portrait-image {
    width: 240px;
    height: 240px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.portrait-image:hover {
    transform: scale(1.03);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.about-description {
    font-size: 1.0625rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-top: var(--space-md);
}

.about-stats {
    display: flex;
    gap: var(--space-xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--color-text-primary);
}

.stat-label {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-text-tertiary);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}


/* ============================================
   CONTACT SECTION
   ============================================ */
#contact {
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
}

.contact-inner {
    max-width: 600px;
    margin: 0 auto;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-top: var(--space-sm);
    margin-bottom: var(--space-md);
}

.contact-description {
    font-size: 1.0625rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-surface);
    background: var(--color-text-primary);
    padding: 14px 32px;
    border-radius: 980px;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.contact-btn:hover {
    background: #333336;
    transform: scale(1.02);
    gap: calc(var(--space-sm) + 4px);
}

.contact-btn svg {
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.contact-btn:hover svg {
    transform: translateX(4px);
}


/* ============================================
   FOOTER
   ============================================ */
#main-footer {
    border-top: 0.5px solid var(--color-border);
    padding: var(--space-lg) var(--space-lg);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}


/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--color-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    color: rgba(255,255,255,0.7);
    padding: 12px;
    transition: color var(--duration-fast), transform var(--duration-normal) var(--ease-out-expo);
    z-index: 10;
}

.lightbox-close:hover {
    color: #fff;
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.6);
    padding: 16px;
    transition: color var(--duration-fast), transform var(--duration-fast);
    z-index: 10;
}

.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

.lightbox-nav:hover {
    color: #fff;
}

.lightbox-prev:hover { transform: translateY(-50%) translateX(-4px); }
.lightbox-next:hover { transform: translateY(-50%) translateX(4px); }

.lightbox-image-container {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.lightbox.active .lightbox-image {
    transform: scale(1);
}

.lightbox-info {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: rgba(255,255,255,0.5);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.lightbox-category {
    text-transform: uppercase;
}


/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scrollPulse {
    0% { opacity: 1; transform: scaleY(1); transform-origin: top; }
    50% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* Scroll-triggered reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

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


/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .gallery-grid {
        columns: 2;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-menu-btn {
        display: flex;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .gallery-grid {
        columns: 2;
        column-gap: 10px;
        padding: 0 var(--space-sm) var(--space-2xl);
    }

    .gallery-item {
        margin-bottom: 10px;
        border-radius: 8px;
    }

    .about-inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }

    .portrait-image {
        width: 180px;
        height: 180px;
    }

    .about-stats {
        justify-content: center;
        gap: var(--space-xl);
    }

    .stat-number {
        font-size: 2rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .section-header {
        padding: var(--space-2xl) var(--space-sm) var(--space-lg);
    }

    .category-filter {
        padding: 0 var(--space-sm) var(--space-lg);
        gap: 4px;
    }

    .filter-btn {
        font-size: 0.75rem;
        padding: 6px 14px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        columns: 2;
    }

    .about-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
}

/* Loading skeleton */
.gallery-item.loading {
    background: var(--color-bg-alt);
    min-height: 200px;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}


/* ============================================
   PRINT PROTECTION
   ============================================ */
@media print {
    .gallery-item img,
    .lightbox,
    .gallery-grid {
        display: none !important;
    }

    .gallery-grid::after {
        display: block;
        content: "Images are protected by copyright and cannot be printed.";
        text-align: center;
        padding: 4rem 2rem;
        font-size: 1.125rem;
        color: #6e6e73;
    }
}