/* ===================================
   CSS Reset & Base Styles
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark mode colors (default) */
    --color-bg: #0f0f0f;
    --color-surface: #1a1a1a;
    --color-text-primary: #e8e8e8;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #707070;
    --color-border: #2a2a2a;
    --color-accent: #c0c0c0;
    --color-overlay: rgba(0, 0, 0, 0.95);

    /* Anthropic Orange Accent */
    --color-orange: #CC785C;
    --color-orange-hover: #D88769;
    --color-orange-light: rgba(204, 120, 92, 0.12);

    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;

    /* Layout */
    --max-width: 1600px;
    --header-height: 100px;
}

/* Light mode colors */
[data-theme="light"] {
    --color-bg: #fafaf8;
    --color-surface: #ffffff;
    --color-text-primary: #2a2a2a;
    --color-text-secondary: #6b6b6b;
    --color-text-muted: #999999;
    --color-border: #e8e8e6;
    --color-accent: #4a4a4a;
    --color-overlay: rgba(0, 0, 0, 0.92);

    /* Orange adjusted for light mode */
    --color-orange: #CC785C;
    --color-orange-hover: #B86A4F;
    --color-orange-light: rgba(204, 120, 92, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

/* ===================================
   Hero Landing Section
   =================================== */

.hero-section {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    z-index: 200;
    will-change: opacity, transform;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin: 0;
    animation: heroFadeIn 1.2s ease forwards;
    opacity: 0;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 40%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    animation: scrollBounce 2s ease-in-out infinite, heroFadeIn 1.2s ease forwards;
    animation-delay: 0s, 0.5s;
    opacity: 0;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

.scroll-indicator svg {
    color: var(--color-orange);
}

/* ===================================
   Header & Navigation
   =================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 150;
    opacity: 0;
    will-change: opacity, transform;
}

header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    background-color: rgba(26, 26, 26, 0.95);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

[data-theme="light"] header {
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.header-left {
    flex: 1;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

h1 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 300;
    letter-spacing: 0.08em;
    color: var(--color-text-primary);
}

h1 a {
    text-decoration: none;
    color: inherit;
    transition: opacity var(--transition-fast);
}

h1 a:hover {
    opacity: 0.7;
}

nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    font-weight: 400;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-orange);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-medium);
}

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

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

.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
}

.theme-toggle:hover {
    color: var(--color-orange);
    border-color: var(--color-orange);
    box-shadow: 0 0 12px var(--color-orange-light);
    transform: rotate(15deg);
}

.theme-toggle svg {
    position: absolute;
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.sun-icon {
    opacity: 0;
    transform: rotate(180deg) scale(0.5);
}

.dark-icon {
    opacity: 1;
    transform: scale(1);
}

[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .dark-icon {
    opacity: 0;
    transform: scale(0.5);
}

/* ===================================
   Gallery - Masonry Layout
   =================================== */

#gallery-content {
    flex: 1;
}

/* Content wrapper to enable scrolling past hero */
.content-wrapper {
    position: relative;
}

#gallery {
    column-count: 3;
    column-gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: var(--max-width);
    margin: 0 auto;
    margin-top: 100vh; /* Start gallery one viewport down */
}

/* When skipping animation, use normal margin */
#gallery.skip-animation {
    margin-top: 100px;
}

.gallery-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-text-muted);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-sm);
}

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

.photo {
    background-color: var(--color-surface);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    width: 100%;
    cursor: pointer;
    position: relative;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    opacity: 1;
    border: 1px solid var(--color-border);
}

/* Initial state - photos hidden until scroll animation (only for animated photos) */
.photo.animate-ready {
    opacity: 0;
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
}

/* Reduced motion support - instant load for accessibility */
@media (prefers-reduced-motion: reduce) {
    .hero-section,
    .hero-title,
    .scroll-indicator,
    .photo {
        animation: none !important;
        transition: none !important;
    }

    .photo {
        opacity: 1 !important;
    }

    .hero-section {
        display: none !important;
    }

    .main-header {
        opacity: 1 !important;
        transform: none !important;
    }
}

.photo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(204, 120, 92, 0.08));
    opacity: 0;
    transition: opacity var(--transition-medium);
    z-index: 1;
    pointer-events: none;
}

.photo:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .photo:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.photo:hover::before {
    opacity: 1;
}

.photo picture,
.photo img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

.photo:hover img {
    transform: scale(1.02);
}

/* ===================================
   About Section
   =================================== */

.about-section {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: calc(100vh - var(--header-height) - 100px);
    display: flex;
    align-items: center;
}

.about-container {
    animation: fadeIn 0.8s ease;
    padding: var(--spacing-lg);
    border-left: 2px solid var(--color-border);
}

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

.about-image {
    margin-bottom: var(--spacing-lg);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-section h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    letter-spacing: 0.05em;
}

.about-section p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.about-section p:last-child {
    margin-bottom: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-links a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links a:hover {
    color: var(--color-orange);
    transform: translateY(-2px);
}

.social-links svg {
    width: 24px;
    height: 24px;
}

/* ===================================
   Instagram Section
   =================================== */

.instagram-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.instagram-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.instagram-header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin: 0;
}

.instagram-follow {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
    letter-spacing: 0.02em;
}

.instagram-follow:hover {
    color: var(--color-orange);
}

.instagram-follow svg {
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.instagram-follow:hover svg {
    transform: translate(2px, -2px);
    color: var(--color-orange);
}

.instagram-embed-container {
    max-width: 540px;
    margin: 0 auto;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.instagram-embed-container iframe {
    width: 100%;
    min-height: 700px;
    border: none;
    display: block;
}

/* ===================================
   Lightbox
   =================================== */

#lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

#lightbox.visible {
    display: flex;
    opacity: 1;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
    cursor: pointer;
}

.lightbox-close {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #ffffff;
    cursor: pointer;
    z-index: 1002;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-close svg {
    pointer-events: none;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 1001;
    animation: lightboxZoomIn 0.4s ease;
}

@keyframes lightboxZoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-picture {
    display: block;
    width: 100%;
    height: 100%;
}

#lightbox-img {
    display: block;
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ===================================
   Footer
   =================================== */

footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    margin-top: auto;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

/* ===================================
   Focus States (Accessibility)
   =================================== */

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-orange);
    outline-offset: 2px;
    border-radius: 2px;
}

.nav-link:focus-visible {
    color: var(--color-orange);
}

/* ===================================
   Utility Classes
   =================================== */

.hidden {
    display: none !important;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1100px) {
    #gallery {
        column-count: 2;
    }
}

@media (max-width: 900px) {
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }

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

    nav {
        flex: 1;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }

    /* Mobile hero adjustments */
    .hero-title {
        font-size: 2.5rem;
    }

    .scroll-indicator {
        bottom: 35%;
        font-size: 0.75rem;
    }

    /* Gallery on mobile */
    #gallery {
        column-count: 2;
        column-gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    h1 {
        font-size: 1.5rem;
    }

    .tagline {
        font-size: 0.75rem;
    }

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

    .nav-link {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }

    .photo {
        margin-bottom: var(--spacing-sm);
        border-radius: 2px;
    }

    /* Disable hover effects on mobile */
    .photo:hover {
        transform: none;
        box-shadow: none;
    }

    .photo:hover::before {
        opacity: 0;
    }

    .photo:hover img {
        transform: none;
    }

    /* Active state for touch */
    .photo:active {
        opacity: 0.9;
    }

    .about-section {
        padding: var(--spacing-lg) var(--spacing-md);
        min-height: auto;
    }

    .about-container {
        padding: var(--spacing-md) 0;
        border-left: none;
        border-top: 2px solid var(--color-border);
        padding-top: var(--spacing-md);
    }

    .about-section h2 {
        font-size: 2rem;
    }

    .about-section p {
        font-size: 1rem;
    }

    .lightbox-close {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 44px;
        height: 44px;
    }

    #lightbox-img {
        max-width: 95vw;
        max-height: 85vh;
    }

    .theme-toggle {
        width: 36px;
        height: 36px;
    }

    .instagram-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .instagram-embed-container iframe {
        min-height: 600px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .header-content {
        padding: var(--spacing-sm);
    }

    h1 {
        font-size: 1.25rem;
    }

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

    .nav-link {
        font-size: 0.75rem;
    }

    /* Single column gallery on very small screens */
    #gallery {
        column-count: 1;
        padding: var(--spacing-xs);
        margin-top: 80px !important;
    }

    .photo {
        margin-bottom: var(--spacing-xs);
    }

    .about-section h2 {
        font-size: 1.75rem;
    }

    .about-section p {
        font-size: 0.95rem;
    }

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

    .instagram-section {
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .instagram-header h3 {
        font-size: 1.25rem;
    }

    .instagram-embed-container iframe {
        min-height: 500px;
    }
}

/* ===================================
   Print Styles
   =================================== */

@media print {
    header,
    nav,
    footer,
    #lightbox,
    .theme-toggle {
        display: none;
    }

    #gallery {
        column-count: 2;
    }

    .photo {
        page-break-inside: avoid;
    }
}