/* ==========================================================================
   Grand Nails Salon & SPA — Design System
   Palette: warm copper (from logo) + antique gold on deep champagne, an
   old-world, jewel-box elegance rather than flat white-and-gold
   Type: Playfair Display (headings) / Inter (body)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,500&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Color tokens */
  --color-bg: #F5EAD9;
  --color-bg-alt: #ECD9BC;
  --color-surface: #FFFCF6;
  --color-primary: #9A4E14;
  --color-primary-dark: #522809;
  --color-primary-light: #C98A52;
  --color-accent: #93701F;
  --color-accent-light: #D9BD7E;
  --color-text: #2A1B10;
  --color-text-muted: #74593F;
  --color-border: #DCC297;
  --color-on-primary: #FFFAF1;
  --color-focus-ring: #522809;

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

  /* Spacing scale (4/8px rhythm) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Effects */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(82, 40, 9, 0.10);
  --shadow-md: 0 8px 24px rgba(82, 40, 9, 0.14);
  --shadow-lg: 0 20px 48px rgba(82, 40, 9, 0.18);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 200ms;
  --duration-standard: 400ms;

  --container-width: 1180px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background:
    repeating-linear-gradient(135deg, rgba(82, 40, 9, 0.025) 0px, rgba(82, 40, 9, 0.025) 1px, transparent 1px, transparent 5px),
    var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, picture, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }
input, textarea, select { font: inherit; }

:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.25rem, 4.5vw + 1rem, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 2.5vw + 1rem, 2.75rem); }
h3 { font-size: clamp(1.25rem, 1vw + 1rem, 1.5rem); }
p { color: var(--color-text-muted); max-width: 65ch; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1.5px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent-light) 100%);
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.section { padding-block: var(--space-9); }
.section-tight { padding-block: var(--space-7); }
@media (max-width: 640px) {
  .section { padding-block: var(--space-8); }
}
.stack { display: flex; flex-direction: column; }
.center-text { text-align: center; }
.section-head {
  max-width: 620px;
  margin-bottom: var(--space-7);
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: var(--space-3); }
.section-head p { margin-top: var(--space-4); }
.section-head.center p { margin-inline: auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--color-primary-dark);
  border: 1.5px solid var(--color-border);
}
.btn-outline:hover { border-color: var(--color-primary); background: var(--color-bg-alt); }
.btn-ghost { color: var(--color-primary-dark); padding-inline: var(--space-3); }
.btn-ghost:hover { background: var(--color-bg-alt); }
.btn-lg { padding: 1.1rem 2.25rem; font-size: 1.05rem; }
.btn svg { width: 1.1em; height: 1.1em; flex-shrink: 0; }

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 248, 245, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              padding-block var(--duration-fast) var(--ease-out);
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  transition: padding-block var(--duration-fast) var(--ease-out);
}
.site-header.is-scrolled .nav-row { padding-block: var(--space-3); }
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.brand-logo {
  height: 52px;
  width: auto;
  flex-shrink: 0;
  transition: height var(--duration-fast) var(--ease-out);
}
.site-header.is-scrolled .brand-logo { height: 42px; }
.footer-logo {
  height: 56px;
  width: auto;
  margin-bottom: var(--space-4);
}
.brand-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  text-transform: uppercase;
}
.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-6);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-links a {
  position: relative;
  padding-block: var(--space-1);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  transition: right var(--duration-fast) var(--ease-out);
}
.nav-links a:hover { color: var(--color-primary-dark); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { right: 0; }
.nav-links a[aria-current="page"] { color: var(--color-primary-dark); }
.nav-actions { display: flex; align-items: center; gap: var(--space-4); }
.nav-actions .btn-primary { display: none; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-standard) var(--ease-out);
  border-top: 1px solid transparent;
}
.mobile-menu.is-open {
  grid-template-rows: 1fr;
  border-color: var(--color-border);
}
.mobile-menu-inner { overflow: hidden; }
.mobile-menu ul {
  display: flex;
  flex-direction: column;
  padding-block: var(--space-4);
  gap: var(--space-1);
}
.mobile-menu a {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-weight: 500;
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
}
.mobile-menu a:hover { background: var(--color-bg-alt); }
.mobile-menu .btn { width: 100%; margin-top: var(--space-3); }

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-actions .btn-primary { display: inline-flex; }
  .nav-toggle, .mobile-menu { display: none; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-9) var(--space-8);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(60% 60% at 85% 10%, var(--color-bg-alt) 0%, transparent 70%),
              radial-gradient(50% 50% at 10% 90%, var(--color-primary-light) 0%, transparent 70%),
              var(--color-bg);
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.35;
  z-index: -1;
  animation: float 14s ease-in-out infinite;
}
.hero-blob.b1 { width: 340px; height: 340px; background: var(--color-primary-light); top: -80px; right: -60px; }
.hero-blob.b2 { width: 260px; height: 260px; background: var(--color-accent-light); bottom: -60px; left: -40px; animation-delay: -6s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-16px, 20px) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-blob { animation: none; }
}
.hero-grid {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}
.hero-copy p { font-size: 1.1rem; margin-top: var(--space-4); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.hero-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
.hero-badge svg { width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; }
.hero-visual { position: relative; transition: transform 200ms var(--ease-out); }
.hero-art {
  width: 100%;
  height: auto;
}
.hero-art path, .hero-art circle {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.4s var(--ease-out) forwards;
}
@media (prefers-reduced-motion: reduce) {
  .hero-art path, .hero-art circle { animation: none; stroke-dashoffset: 0; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}

/* ---- Cards / Grids ---- */
.grid { display: grid; gap: var(--space-6); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(1, 1fr); }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-4);
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: var(--space-2); }
.card p { font-size: 0.95rem; }
.card-price {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
.badge svg { width: 18px; height: 18px; color: var(--color-primary); }

/* ---- Placeholder photo tiles ---- */
.photo-tile {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--color-bg-alt);
}
.photo-tile img { width: 100%; height: 100%; object-fit: cover; }
.photo-tile figcaption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: var(--space-4);
  background: linear-gradient(0deg, rgba(42, 27, 16, 0.74) 0%, transparent 100%);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.photo-tile.wide { aspect-ratio: 4 / 3; }

/* ---- Section variants ---- */
.section-alt { background: var(--color-bg-alt); }
.section-dark {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-text) 100%);
  color: #fff;
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.78); }
.section-dark .eyebrow { color: var(--color-accent-light); }

.cta-banner {
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
}
.cta-banner .btn-outline { border-color: rgba(255,255,255,0.4); color: #fff; }
.cta-banner .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

/* ---- Info list (contact/hours) ---- */
.info-list { display: flex; flex-direction: column; gap: var(--space-5); }
.info-item { display: flex; gap: var(--space-4); align-items: flex-start; }
.info-item svg { width: 22px; height: 22px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.info-item h3 { font-size: 1rem; margin-bottom: var(--space-1); }
.hours-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.hours-table td { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-muted); }
.hours-table td:last-child { text-align: right; font-weight: 600; color: var(--color-text); }
.hours-table tr:last-child td { border-bottom: none; }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.72);
  padding-block: var(--space-8) var(--space-6);
}
.footer-grid {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}
.footer-brand { color: #fff; font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; }
.footer-brand + p { margin-top: var(--space-3); font-size: 0.9rem; max-width: 32ch; }
.footer h4 { color: #fff; font-family: var(--font-body); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-4); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-3); font-size: 0.92rem; }
.footer-links a:hover { color: #fff; }
.footer-social { display: flex; gap: var(--space-3); margin-top: var(--space-5); }
.footer-social a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  transition: background var(--duration-fast) var(--ease-out);
}
.footer-social a:hover { background: var(--color-primary); }
.footer-social svg { width: 18px; height: 18px; }
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  font-size: 0.82rem;
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- Page hero (inner pages) ---- */
.page-hero {
  padding-block: var(--space-8) var(--space-7);
  background: var(--color-bg-alt);
  text-align: center;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}
.breadcrumb a:hover { color: var(--color-primary-dark); }

/* ---- Menu list (services page) ---- */
.menu-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-6) var(--space-2);
}
.menu-panel-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.menu-panel-head .card-icon { margin-bottom: 0; }
.menu-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.menu-item:last-child { border-bottom: none; }
.menu-item-name { font-weight: 600; color: var(--color-text); }
.menu-item-name span {
  display: block;
  font-weight: 400;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}
.menu-item-price {
  flex-shrink: 0;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  text-align: right;
}
.menu-item-price small {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.menu-item-price .price-cash { color: var(--color-primary-dark); }
.callout {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
}
.callout svg { width: 24px; height: 24px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.callout p { margin: 0; }

/* ---- Scroll to top ---- */
.scroll-top-btn {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
  z-index: 90;
}
.scroll-top-btn.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.scroll-top-btn:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.scroll-top-btn svg { width: 20px; height: 20px; }

/* ---- FAQ accordion ---- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 760px;
  margin-inline: auto;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ''; }
.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  transition: transform var(--duration-fast) var(--ease-out);
}
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-item-body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-muted);
}
@media (prefers-reduced-motion: no-preference) {
  .faq-item-body { animation: faq-in 260ms var(--ease-out); }
}
@keyframes faq-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Gallery filters ---- */
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-7);
}
.filter-btn {
  padding: 0.65rem var(--space-5);
  min-height: 44px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.filter-btn:active { transform: scale(0.96); }
.filter-btn[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-color: transparent;
  color: var(--color-on-primary);
}
.photo-tile-wrap {
  transition: opacity var(--duration-standard) var(--ease-out), transform var(--duration-standard) var(--ease-out);
}
.photo-tile-wrap.is-hidden {
  display: none;
}
.photo-tile-btn {
  display: block;
  width: 100%;
  cursor: pointer;
  border-radius: var(--radius-md);
}
.photo-tile-btn .photo-tile { transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out); }
.photo-tile-btn:hover .photo-tile { transform: translateY(-4px) scale(1.01); box-shadow: var(--shadow-lg); }
.photo-tile-btn:hover .photo-tile img { transform: scale(1.05); }
.photo-tile img { transition: transform 500ms var(--ease-out); }

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: rgba(20, 11, 5, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.lightbox.is-open { display: flex; }
.lightbox-inner {
  position: relative;
  max-width: min(90vw, 720px);
  max-height: 88vh;
  animation: lightbox-in 320ms var(--ease-out);
}
@keyframes lightbox-in {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .lightbox-inner { animation: none; }
}
.lightbox-inner img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}
.lightbox-caption {
  color: #fff;
  text-align: center;
  margin-top: var(--space-4);
  font-weight: 600;
}
.lightbox-close,
.lightbox-nav {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  transition: background var(--duration-fast) var(--ease-out);
}
.lightbox-close:hover,
.lightbox-nav:hover { background: rgba(255, 255, 255, 0.24); }
.lightbox-close { top: -56px; right: 0; }
.lightbox-close svg { width: 22px; height: 22px; }
.lightbox-nav svg { width: 24px; height: 24px; }
.lightbox-nav.prev { left: -56px; top: 50%; transform: translateY(-50%); }
.lightbox-nav.next { right: -56px; top: 50%; transform: translateY(-50%); }
@media (max-width: 800px) {
  .lightbox-nav.prev { left: 0; }
  .lightbox-nav.next { right: 0; }
  .lightbox-close { top: -52px; right: 0; }
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.span-2 { grid-column: 1 / -1; }
.mt-8 { margin-top: var(--space-8); }
.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;
  left: var(--space-4);
  top: -60px;
  background: var(--color-primary-dark);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }