/* ==========================================================================
   Ashley Preston Hair Design - Modern CSS
   Using @layer for cascade management
   ========================================================================== */

@layer reset, tokens, base, layout, components, utilities;

/* ==========================================================================
   RESET LAYER
   ========================================================================== */
@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  * {
    margin: 0;
    padding: 0;
  }

  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
  }

  body {
    min-height: 100vh;
    line-height: 1.6;
  }

  img,
  picture,
  video,
  canvas,
  svg {
    display: block;
    max-width: 100%;
  }

  input,
  button,
  textarea,
  select {
    font: inherit;
  }

  p,
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    overflow-wrap: break-word;
  }

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

  ul,
  ol {
    list-style: none;
  }

  button {
    background: none;
    border: none;
    cursor: pointer;
  }
}

/* ==========================================================================
   TOKENS LAYER - Design system variables
   ========================================================================== */
@layer tokens {
  :root {
    /* Colors - B&W with subtle warmth */
    --color-black: #171717;
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Montserrat', system-ui, sans-serif;

    /* Fluid type scale using clamp() */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.25rem, 1rem + 1vw, 1.5rem);
    --text-xl: clamp(1.5rem, 1rem + 2vw, 2.5rem);
    --text-2xl: clamp(2rem, 1.5rem + 2vw, 3rem);
    --text-hero: clamp(2.5rem, 1rem + 5vw, 6rem);

    /* Font weights */
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;

    /* Spacing scale */
    --space-xs: clamp(0.25rem, 0.5vw, 0.5rem);
    --space-sm: clamp(0.5rem, 1vw, 1rem);
    --space-md: clamp(1rem, 2vw, 2rem);
    --space-lg: clamp(2rem, 4vw, 4rem);
    --space-xl: clamp(4rem, 8vw, 8rem);
    --space-2xl: clamp(6rem, 12vw, 12rem);

    /* Layout */
    --content-width: 65ch;
    --wide-width: 90rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px rgb(0 0 0 / 0.07);
    --shadow-lg: 0 10px 15px rgb(0 0 0 / 0.1);

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
  }

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

  /* ==========================================================================
     Animation Keyframes
     ========================================================================== */

  /* Fade up animation */
  @keyframes fade-up {
    from {
      opacity: 0;
      transform: translateY(2rem);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Fade in animation */
  @keyframes fade-in {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }

  /* Slide in from left */
  @keyframes slide-in-left {
    from {
      opacity: 0;
      transform: translateX(-3rem);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  /* Slide in from right */
  @keyframes slide-in-right {
    from {
      opacity: 0;
      transform: translateX(3rem);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  /* Scale up animation */
  @keyframes scale-up {
    from {
      opacity: 0;
      transform: scale(0.9);
    }
    to {
      opacity: 1;
      transform: scale(1);
    }
  }

  /* Subtle float animation for hero */
  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-10px);
    }
  }

  /* Line draw animation */
  @keyframes draw-line {
    from {
      transform: scaleX(0);
    }
    to {
      transform: scaleX(1);
    }
  }
}

/* ==========================================================================
   BASE LAYER - Element defaults
   ========================================================================== */
@layer base {
  body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-gray-800);
    background-color: var(--color-white);
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--font-medium);
    line-height: 1.2;
    color: var(--color-black);
  }

  h1 { font-size: var(--text-hero); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  p {
    max-width: var(--content-width);
  }

  strong {
    font-weight: var(--font-semibold);
  }

  /* Focus styles */
  :focus-visible {
    outline: 2px solid var(--color-black);
    outline-offset: 2px;
  }
}

/* ==========================================================================
   LAYOUT LAYER
   ========================================================================== */
@layer layout {
  /* Page-level grid */
  .page {
    display: grid;
    grid-template-columns:
      [full-start] minmax(var(--space-md), 1fr)
      [content-start] min(var(--wide-width), 100%)
      [content-end] minmax(var(--space-md), 1fr)
      [full-end];
  }

  .page > * {
    grid-column: content;
  }

  /* Section spacing */
  section {
    padding-block: var(--space-xl);
  }

  /* Section headers */
  .section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
  }

  .section-title {
    margin-bottom: var(--space-sm);
    position: relative;
    display: inline-block;
  }

  /* Animated underline for section titles */
  .section-header .section-title::after {
    content: '';
    position: absolute;
    bottom: -0.25rem;
    left: 50%;
    width: 3rem;
    height: 2px;
    background: var(--color-black);
    transform: translateX(-50%) scaleX(0);
    transition: transform 0.6s ease-out 0.3s;
    transform-origin: center;
  }

  .section-header.is-visible .section-title::after {
    transform: translateX(-50%) scaleX(1);
  }

  .section-header {
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .section-header.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .section-intro {
    color: var(--color-gray-600);
    max-width: 50ch;
    margin-inline: auto;
  }
}

/* ==========================================================================
   COMPONENTS LAYER
   ========================================================================== */
@layer components {
  /* ==========================================================================
     Header & Navigation
     ========================================================================== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-white);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
  }

  /* Scroll-state container query for sticky header */
  @supports (container-type: scroll-state) {
    .site-header {
      container-type: scroll-state;
    }

    @container scroll-state(stuck: top) {
      .site-header {
        border-bottom-color: var(--color-gray-200);
        box-shadow: var(--shadow-sm);
      }
    }
  }

  /* Fallback: always show border after scroll (JS will add class) */
  .site-header.is-scrolled {
    border-bottom-color: var(--color-gray-200);
    box-shadow: var(--shadow-sm);
  }

  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    max-width: var(--wide-width);
    margin-inline: auto;
  }

  .nav-logo {
    display: flex;
    align-items: baseline;
    gap: 0.4em;
    color: var(--color-black);
  }

  .nav-logo-first {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: var(--font-regular);
    letter-spacing: 2px;
  }

  .nav-logo-last {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-gray-400);
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }

  .nav-link {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-black);
    transition: width var(--transition-base);
  }

  .nav-link:hover,
  .nav-link:focus {
    color: var(--color-black);
  }

  .nav-link:hover::after,
  .nav-link:focus::after,
  .nav-link.is-active::after {
    width: 100%;
  }

  .nav-link.is-active {
    color: var(--color-black);
  }

  .nav-cta {
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-black);
    color: var(--color-white) !important;
    border-radius: var(--radius-full);
  }

  .nav-cta::after {
    display: none;
  }

  .nav-cta:hover,
  .nav-cta:focus {
    background: var(--color-gray-700);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgb(0 0 0 / 0.2);
  }

  /* Mobile navigation toggle */
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-xs);
  }

  .nav-toggle-bar {
    width: 24px;
    height: 2px;
    background: var(--color-black);
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  @media (max-width: 768px) {
    .nav-toggle {
      display: flex;
    }

    .nav-menu {
      position: fixed;
      inset: 0;
      top: 60px;
      flex-direction: column;
      justify-content: flex-start;
      padding: var(--space-lg);
      background: var(--color-white);
      gap: var(--space-md);
      transform: translateX(100%);
      transition: transform var(--transition-base);
    }

    .nav-menu.is-open {
      transform: translateX(0);
    }

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

    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    }
  }

  /* ==========================================================================
     Hero Section
     ========================================================================== */
  .hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    min-height: calc(100vh - 80px);
    align-items: center;
    padding-block: var(--space-lg);
  }

  @media (min-width: 768px) {
    .hero {
      grid-template-columns: 1fr 1fr;
    }
  }

  .hero-content {
    text-align: center;
  }

  @media (min-width: 768px) {
    .hero-content {
      text-align: left;
    }
  }

  .hero-title {
    margin-bottom: var(--space-md);
  }

  .hero-title::after {
    content: '';
    display: block;
    width: 10rem;
    height: 1px;
    background: var(--color-gray-300);
    margin-top: var(--space-sm);
  }

  .hero-name-first {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(4rem, 2rem + 6vw, 8.5rem);
    font-weight: var(--font-regular);
    letter-spacing: 4px;
    line-height: 1;
  }

  .hero-name-last {
    display: block;
    font-family: var(--font-body);
    font-size: 24px;
    font-weight: var(--font-medium);
    letter-spacing: 2.4px;
    line-height: 32px;
    text-transform: uppercase;
    color: var(--color-gray-400);
  }

  .hero-hair-design {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: var(--font-regular);
    font-size: var(--text-base);
    color: var(--color-gray-400);
    letter-spacing: 0.04em;
    margin-bottom: var(--space-sm);
  }

  .hero-subtitle {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: var(--font-regular);
  }

  .hero-location {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--space-md);
  }

  .hero-image {
    aspect-ratio: 3/4;
    overflow: hidden;
    border-radius: var(--radius-lg);
  }

  .hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* Hero entrance animations */
  .hero-content {
    animation: fade-up 0.8s ease-out;
  }

  .hero-title {
    animation: fade-up 0.8s ease-out;
  }

  .hero-subtitle {
    animation: fade-up 0.8s ease-out 0.1s backwards;
  }

  .hero-location {
    animation: fade-up 0.8s ease-out 0.2s backwards;
  }

  .hero-content .btn {
    animation: fade-up 0.8s ease-out 0.3s backwards;
  }

  .hero-image {
    animation: scale-up 1s ease-out 0.2s backwards;
  }

  /* ==========================================================================
     Buttons
     ========================================================================== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    transition: color var(--transition-base), background var(--transition-base),
                border-color var(--transition-base), box-shadow var(--transition-base),
                transform var(--transition-base);
  }

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

  .btn-primary:hover,
  .btn-primary:focus {
    background: var(--color-gray-700);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgb(0 0 0 / 0.25);
  }

  .btn-secondary {
    background: transparent;
    color: var(--color-black);
    border: 1px solid var(--color-gray-300);
    position: relative;
    overflow: hidden;
    z-index: 1; /* establishes stacking context so text node sits above ::after */
  }

  /* Ink fill: black rises from bottom on hover */
  .btn-secondary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-black);
    border-radius: inherit;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition-base);
    z-index: -1; /* sits behind element content in its stacking context */
  }

  .btn-secondary:hover,
  .btn-secondary:focus {
    color: var(--color-white);
    border-color: var(--color-black);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgb(0 0 0 / 0.18);
  }

  .btn-secondary:hover::after,
  .btn-secondary:focus::after {
    transform: scaleY(1);
  }

  .btn-large {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--text-base);
  }

  /* ==========================================================================
     Services Section
     ========================================================================== */
  .services {
    background: var(--color-gray-50);
    grid-column: full;
    padding-inline: var(--space-lg);
  }

  .services > * {
    max-width: var(--wide-width);
    margin-inline: auto;
    width: 100%;
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
  }

  .service-card {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    container-type: inline-size;
  }

  .service-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-gray-200);
  }

  .service-brand {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-sm);
    font-style: italic;
  }

  .service-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }

  .service-list li {
    color: var(--color-gray-600);
    padding-left: var(--space-sm);
    position: relative;
  }

  .service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 4px;
    height: 4px;
    background: var(--color-gray-400);
    border-radius: var(--radius-full);
  }

  /* Service card scroll animations */
  .service-card {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out, box-shadow var(--transition-base);
  }

  .service-card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Staggered service card animations */
  .service-card:nth-child(1) { transition-delay: 0s; }
  .service-card:nth-child(2) { transition-delay: 0.1s; }
  .service-card:nth-child(3) { transition-delay: 0.2s; }

  /* Service card hover effects */
  .service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
  }

  .service-card.is-visible:hover {
    transform: translateY(-4px);
  }

  /* ==========================================================================
     Portfolio Section
     ========================================================================== */
  .portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
  }

  .filter-btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
  }

  .filter-btn:hover,
  .filter-btn:focus {
    border-color: var(--color-gray-400);
    color: var(--color-black);
  }

  .filter-btn.active {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
  }

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

  /* Filter buttons container animation */
  .portfolio-filters {
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .portfolio-filters.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
  }

  .portfolio-item {
    display: grid;
    grid-template-rows: subgrid;
    grid-row: span 2;
  }

  /* Fallback for browsers without subgrid */
  @supports not (grid-template-rows: subgrid) {
    .portfolio-item {
      display: flex;
      flex-direction: column;
    }
  }

  .portfolio-trigger {
    padding: 0;
    cursor: zoom-in;
    overflow: hidden;
    border-radius: var(--radius-md);
  }

  .portfolio-img {
    aspect-ratio: 3/4;
    width: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
  }

  .portfolio-trigger:hover .portfolio-img,
  .portfolio-trigger:focus .portfolio-img {
    transform: scale(1.08);
  }

  .portfolio-caption {
    padding-top: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
  }

  .portfolio-trigger:hover + .portfolio-caption,
  .portfolio-trigger:focus + .portfolio-caption {
    color: var(--color-black);
  }

  /* Portfolio item visibility for filtering */
  .portfolio-item[hidden] {
    display: none;
  }

  /* Portfolio scroll animations */
  .portfolio-item {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

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

  /* Staggered portfolio item animations - set via JS */
  .portfolio-item:nth-child(1) { transition-delay: 0s; }
  .portfolio-item:nth-child(2) { transition-delay: 0.05s; }
  .portfolio-item:nth-child(3) { transition-delay: 0.1s; }
  .portfolio-item:nth-child(4) { transition-delay: 0.15s; }
  .portfolio-item:nth-child(5) { transition-delay: 0.2s; }
  .portfolio-item:nth-child(6) { transition-delay: 0.25s; }
  .portfolio-item:nth-child(7) { transition-delay: 0.3s; }
  .portfolio-item:nth-child(8) { transition-delay: 0.35s; }

  /* View Transitions for filtering */
  @supports (view-transition-name: test) {
    .portfolio-item {
      view-transition-name: var(--item-id);
    }

    ::view-transition-old(portfolio-item),
    ::view-transition-new(portfolio-item) {
      animation-duration: 300ms;
    }
  }

  /* Portfolio trigger overlay effect */
  .portfolio-trigger::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgb(0 0 0 / 0.3), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: var(--radius-md);
    pointer-events: none;
  }

  .portfolio-trigger {
    position: relative;
    overflow: hidden;
  }

  .portfolio-trigger:hover::after,
  .portfolio-trigger:focus::after {
    opacity: 1;
  }

  /* ==========================================================================
     Portfolio "Show All" Mobile Feature
     ========================================================================== */
  .portfolio-show-more {
    display: flex;
    justify-content: center;
    margin-top: var(--space-lg);
  }

  /* Hide on desktop */
  @media (min-width: 769px) {
    .portfolio-show-more {
      display: none;
    }
  }

  /* Mobile truncation */
  @media (max-width: 768px) {
    .portfolio-item.is-truncated {
      display: none !important;
    }
  }

  /* ==========================================================================
     Lightbox (Dialog)
     ========================================================================== */
  /* ==========================================================================
     Lightbox Carousel
     ========================================================================== */
  .lightbox {
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    padding: 0;
    background: rgb(0 0 0 / 0);
    border: none;
    display: grid;
    grid-template-rows: 1fr auto;
    align-items: center;
    justify-items: center;
    opacity: 0;
    transition: opacity var(--transition-base), background var(--transition-base), display var(--transition-base) allow-discrete;
  }

  .lightbox[open] {
    opacity: 1;
    background: rgb(0 0 0 / 0.95);
  }

  @starting-style {
    .lightbox[open] {
      opacity: 0;
      background: rgb(0 0 0 / 0);
    }
  }

  .lightbox::backdrop {
    background: rgb(0 0 0 / 0);
    transition: background var(--transition-base);
  }

  .lightbox[open]::backdrop {
    background: rgb(0 0 0 / 0.95);
  }

  @starting-style {
    .lightbox[open]::backdrop {
      background: rgb(0 0 0 / 0);
    }
  }

  .lightbox:not([open]) {
    display: none;
  }

  /* Carousel container */
  .lightbox-carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    width: 100%;
    height: calc(100vh - 80px);
    scrollbar-width: none;
    -ms-overflow-style: none;

    /* Scroll marker group placement */
    scroll-marker-group: after;
  }

  .lightbox-carousel::-webkit-scrollbar {
    display: none;
  }

  /* Individual slides */
  .lightbox-slide {
    flex: 0 0 100%;
    scroll-snap-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    margin: 0;
  }

  .lightbox-slide img {
    max-width: min(90vw, 1200px);
    max-height: calc(100vh - 120px);
    object-fit: contain;
    border-radius: var(--radius-md);
    transform: scale(0.95);
    opacity: 0.5;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  /* Active slide (snapped) image enhancement */
  .lightbox-slide:target img,
  .lightbox-slide img {
    transform: scale(1);
    opacity: 1;
  }

  /* Scroll buttons - left and right navigation */
  .lightbox-carousel::scroll-button(left),
  .lightbox-carousel::scroll-button(right) {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgb(255 255 255 / 0.1);
    border: 1px solid rgb(255 255 255 / 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    z-index: 10;
  }

  .lightbox-carousel::scroll-button(left) {
    content: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 18 9 12 15 6'%3E%3C/polyline%3E%3C/svg%3E") / "Previous image";
    left: var(--space-md);
  }

  .lightbox-carousel::scroll-button(right) {
    content: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E") / "Next image";
    right: var(--space-md);
  }

  .lightbox-carousel::scroll-button(left):hover,
  .lightbox-carousel::scroll-button(right):hover {
    background: rgb(255 255 255 / 0.2);
    transform: translateY(-50%) scale(1.1);
  }

  .lightbox-carousel::scroll-button(left):disabled,
  .lightbox-carousel::scroll-button(right):disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }

  /* Scroll markers - dot navigation */
  .lightbox-carousel::scroll-marker-group {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: var(--space-sm) var(--space-md);
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    background: rgb(0 0 0 / 0.5);
    border-radius: var(--radius-full);
    max-width: 90vw;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .lightbox-carousel::scroll-marker-group::-webkit-scrollbar {
    display: none;
  }

  .lightbox-slide::scroll-marker {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: rgb(255 255 255 / 0.3);
    border: 1px solid rgb(255 255 255 / 0.5);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
  }

  .lightbox-slide::scroll-marker:hover {
    background: rgb(255 255 255 / 0.5);
    transform: scale(1.2);
  }

  .lightbox-slide::scroll-marker:target-current {
    background: var(--color-white);
    transform: scale(1.2);
  }

  /* Close button */
  .lightbox-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    background: rgb(255 255 255 / 0.1);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast), transform var(--transition-fast);
    z-index: 20;
  }

  .lightbox-close:hover,
  .lightbox-close:focus {
    background: rgb(255 255 255 / 0.2);
    transform: scale(1.1);
  }

  /* Fallback navigation buttons (for browsers without ::scroll-button) */
  .lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgb(255 255 255 / 0.1);
    border: 1px solid rgb(255 255 255 / 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
    z-index: 10;
  }

  .lightbox-prev {
    left: var(--space-md);
  }

  .lightbox-next {
    right: var(--space-md);
  }

  .lightbox-nav:hover {
    background: rgb(255 255 255 / 0.2);
    transform: translateY(-50%) scale(1.1);
  }

  .lightbox-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }

  .lightbox-nav:disabled:hover {
    transform: translateY(-50%);
    background: rgb(255 255 255 / 0.1);
  }

  /* Hide fallback buttons if native ::scroll-button is supported */
  @supports selector(::scroll-button(left)) {
    .lightbox-nav {
      display: none;
    }
  }

  /* Scroll marker dot indicators (fallback) */
  .lightbox-dots {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    padding: var(--space-xs) var(--space-sm);
    background: rgb(0 0 0 / 0.5);
    border-radius: var(--radius-full);
    z-index: 10;
  }

  .lightbox-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border-radius: var(--radius-full);
    background: rgb(255 255 255 / 0.3);
    border: 1px solid rgb(255 255 255 / 0.5);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
  }

  .lightbox-dot:hover {
    background: rgb(255 255 255 / 0.5);
  }

  .lightbox-dot.is-active {
    background: var(--color-white);
    transform: scale(1.2);
  }

  /* Hide fallback dots if native ::scroll-marker is supported */
  @supports selector(::scroll-marker) {
    .lightbox-dots {
      display: none;
    }
  }

  /* ==========================================================================
     About Section
     ========================================================================== */
  .about {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    align-items: center;
  }

  @media (min-width: 768px) {
    .about {
      grid-template-columns: 1fr 1fr;
    }
  }

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

  .about-content p {
    color: var(--color-gray-600);
  }

  .about-image {
    aspect-ratio: 4/5;
    overflow: hidden;
    border-radius: var(--radius-lg);
  }

  .about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
  }

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

  /* About section scroll animations */
  .about-content {
    opacity: 0;
    transform: translateX(-2rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .about-content.is-visible {
    opacity: 1;
    transform: translateX(0);
  }

  .about-image {
    opacity: 0;
    transform: translateX(2rem);
    transition: opacity 0.6s ease-out 0.2s, transform 0.6s ease-out 0.2s;
  }

  .about-image.is-visible {
    opacity: 1;
    transform: translateX(0);
  }

  /* ==========================================================================
     Testimonials Section
     ========================================================================== */
  .testimonials {
    background: var(--color-gray-50);
    text-align: center;
    grid-column: full;
    padding-inline: var(--space-lg);
  }

  .testimonials > * {
    max-width: var(--wide-width);
    margin-inline: auto;
    width: 100%;
  }

  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
  }

  .testimonial {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: left;
  }

  .testimonial p {
    font-size: var(--text-lg);
    font-family: var(--font-display);
    color: var(--color-gray-700);
    font-style: italic;
    margin-bottom: var(--space-md);
  }

  .testimonial cite {
    font-style: normal;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
  }

  .testimonial cite::before {
    content: '- ';
  }

  /* Testimonial scroll animations */
  .testimonial {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out, box-shadow var(--transition-base);
  }

  .testimonial.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .testimonial:nth-child(1) { transition-delay: 0s; }
  .testimonial:nth-child(2) { transition-delay: 0.15s; }

  /* Testimonial hover effect */
  .testimonial:hover {
    box-shadow: var(--shadow-lg);
  }

  /* ==========================================================================
     Contact Section
     ========================================================================== */
  .contact {
    text-align: center;
  }

  .contact-content {
    max-width: 600px;
    margin-inline: auto;
  }

  .contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
  }

  .contact-location h3 {
    font-size: var(--text-base);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  .contact-location p {
    color: var(--color-gray-600);
    margin-inline: auto;
  }

  /* Contact section animations */
  .contact-content {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .contact-content.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ==========================================================================
     Footer
     ========================================================================== */
  .site-footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-lg) var(--space-md);
  }

  .footer-content {
    max-width: var(--wide-width);
    margin-inline: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
  }

  .social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-white);
    transition: opacity var(--transition-fast);
  }

  .social-link:hover,
  .social-link:focus {
    opacity: 0.8;
  }

  .social-link:hover .icon-instagram,
  .social-link:focus .icon-instagram {
    transform: scale(1.1) rotate(5deg);
  }

  .icon-instagram {
    width: 24px;
    height: 24px;
    transition: transform var(--transition-fast);
  }

  .footer-copyright {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
  }
}

/* ==========================================================================
   UTILITIES LAYER
   ========================================================================== */
@layer utilities {
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

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