/*
 * Nostalgia — base styles (shared across all pages)
 *
 * Includes: design tokens, theme variables, global resets, header/nav,
 *           lang/theme toggles, brand logo behavior, footer, page-wrap,
 *           page-intro / section-rule, global header responsive rules.
 */

:root {
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Cormorant Garamond", Georgia, serif;
  --font-hero: "Lora", Georgia, serif;
  --font-nav: "Montserrat", system-ui, sans-serif;
  --transition: 0.22s ease;
}

/* ——— Light: paper gallery ——— */
[data-theme="light"] {
  --surface-canvas: #f3f0e8;
  --surface-paper: #fbf8ef;
  --surface-muted: #e7dfd1;
  --ink: #15110e;
  --ink-muted: #473d33;
  --accent: #7f5c2c;
  --accent-muted: rgba(157, 120, 65, 0.34);

  --rule-hairline: rgba(52, 42, 32, 0.12);
  --rule-strong: rgba(52, 42, 32, 0.26);
  --frame-border: rgba(52, 42, 32, 0.28);
  --frame-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.65),
    0 1px 2px rgba(0, 0, 0, 0.04);

  --header-surface: #f9f2e7;
  --header-rule: rgba(52, 42, 32, 0.16);
  --header-shadow: 0 10px 28px rgba(47, 37, 27, 0.08);
  --footer-surface: #f9f2e7;

  --tile-outline: var(--frame-border);
  --tile-inner: #16110d;
  --ghost-hover: rgba(61, 44, 32, 0.08);
  --photo-placeholder: #d8d0c1;

  --btn-solid-bg: #efe7d7;
  --btn-solid-fg: #211912;

  --nav-ink: #17120f;
  --nav-accent: #6f5027;

  --hero-scrim-1: rgba(13, 10, 8, 0.42);
  --hero-scrim-2: rgba(30, 22, 15, 0.42);
  --hero-scrim-3: rgba(9, 7, 5, 0.56);
  --hero-scrim-radial: rgba(0, 0, 0, 0.1);
  --hero-scrim-warm: rgba(255, 248, 232, 0.06);

  /* Legacy aliases — maps older var names to tokens */
  --bg: var(--surface-canvas);
  --bg-elevated: var(--surface-paper);
  --text: var(--ink);
  --text-muted: var(--ink-muted);
  --gold: var(--accent);
  --gold-dim: var(--accent-muted);
  --border: var(--rule-hairline);
  --header-bg: var(--header-surface);
  --header-border: var(--header-rule);
  --footer-bg: var(--footer-surface);
  --hero-text-bg: transparent;
  --card-bg: transparent;
  --btn-primary-bg: var(--btn-solid-bg);
  --btn-primary-text: var(--btn-solid-fg);
  --image-placeholder: var(--photo-placeholder);
  --nav-link: var(--nav-ink);
  --nav-link-hover: var(--nav-accent);
}

/* ——— Dark: obsidian canvas ——— */
[data-theme="dark"] {
  --surface-canvas: #030608;
  --surface-paper: #070a0d;
  --surface-muted: #0c0d0d;
  --ink: #efe4cf;
  --ink-muted: #b3a186;
  --accent: #c5a060;
  --accent-muted: rgba(197, 160, 96, 0.28);

  --rule-hairline: rgba(159, 111, 54, 0.28);
  --rule-strong: rgba(196, 147, 78, 0.44);
  --frame-border: rgba(196, 147, 78, 0.46);
  --frame-shadow: inset 0 0 0 1px rgba(197, 160, 96, 0.1);

  --header-surface: #040308;
  --header-rule: rgba(177, 130, 67, 0.28);
  --header-shadow: none;
  --footer-surface: #020202;

  --tile-outline: rgba(196, 147, 78, 0.44);
  --tile-inner: #030608;
  --ghost-hover: rgba(197, 160, 96, 0.1);
  --photo-placeholder: #15100c;

  --btn-solid-bg: transparent;
  --btn-solid-fg: #d4b173;

  --nav-ink: rgba(221, 202, 169, 0.88);
  --nav-accent: #e0c387;

  --hero-scrim-1: rgba(3, 5, 7, 0.56);
  --hero-scrim-2: rgba(5, 6, 7, 0.7);
  --hero-scrim-3: rgba(1, 2, 3, 0.86);
  --hero-scrim-radial: rgba(0, 0, 0, 0.2);
  --hero-scrim-warm: transparent;

  --bg: var(--surface-canvas);
  --bg-elevated: var(--surface-paper);
  --text: var(--ink);
  --text-muted: var(--ink-muted);
  --gold: var(--accent);
  --gold-dim: var(--accent-muted);
  --border: var(--rule-hairline);
  --header-bg: var(--header-surface);
  --header-border: var(--header-rule);
  --footer-bg: var(--footer-surface);
  --hero-text-bg: transparent;
  --card-bg: transparent;
  --btn-primary-bg: var(--btn-solid-bg);
  --btn-primary-text: var(--btn-solid-fg);
  --image-placeholder: var(--photo-placeholder);
  --nav-link: var(--nav-ink);
  --nav-link-hover: var(--nav-accent);
}

.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;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  transition: background var(--transition), color var(--transition);
}

[data-theme="light"] body {
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.72), rgba(239, 232, 219, 0.88)),
    #f3f0e8;
}

[data-theme="dark"] body {
  background:
    linear-gradient(180deg, rgba(8, 10, 12, 0.96), rgba(1, 3, 4, 1)),
    #030608;
}

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

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

/* Header — centered logo, split nav, glass bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  overflow: visible;
  padding: 0.65rem clamp(1rem, 4vw, 2.5rem);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  box-shadow: var(--header-shadow);
  transition:
    background var(--transition),
    border-color var(--transition),
    transform 0.38s cubic-bezier(0.22, 0.82, 0.26, 1),
    box-shadow 0.38s ease;
}

.site-header.site-header--scroll-hidden {
  transform: translateY(-102%);
  box-shadow: none;
}

@media (prefers-reduced-motion: reduce) {
  .site-header {
    transition-duration: 0.01ms;
  }
}

.site-header__bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem 1.25rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.15rem 0.35rem;
}

.site-nav--left {
  justify-content: flex-start;
}

.site-nav--right {
  justify-content: flex-end;
}

.site-nav a {
  font-family: var(--font-nav);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.55rem 0.85rem;
  color: var(--nav-link);
  opacity: 0.92;
  position: relative;
  transition: color 0.28s ease, opacity 0.28s ease;
}

/* Λεπτή γραμμή που εμφανίζεται ομαλά από το κέντρο */
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0.65rem;
  right: 0.65rem;
  bottom: 0.38rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.site-nav a:hover {
  opacity: 1;
  color: var(--nav-link-hover);
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-nav a[aria-current="page"] {
  opacity: 1;
  color: var(--accent);
}

.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-header__logo {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.site-header__logo img {
  height: 58px;
  width: auto;
  max-width: min(48vw, 230px);
  object-fit: contain;
  display: block;
  transform-origin: center center;
  will-change: transform;
}

.site-header__logo--topbar {
  display: none;
}

/* Dark logo default · light variant στο light mode */
.brand-logo--light {
  display: none;
}

.brand-logo {
  transition: opacity 0.32s ease;
}

.brand-logo--dark {
  mix-blend-mode: lighten;
}

.brand-logo--light {
  mix-blend-mode: darken;
}

[data-theme="light"] .site-header__logo .brand-logo--dark,
[data-theme="light"] .site-footer__logo .brand-logo--dark {
  display: none;
}

[data-theme="light"] .site-header__logo .brand-logo--light,
[data-theme="light"] .site-footer__logo .brand-logo--light {
  display: block;
}

.site-header__logo--pulse img {
  animation: logoHeartbeat 2.85s ease-in-out infinite;
}

@keyframes logoHeartbeat {
  0%,
  45%,
  100% {
    transform: scale(1);
  }
  8% {
    transform: scale(1.065);
  }
  14% {
    transform: scale(1);
  }
  22% {
    transform: scale(1.048);
  }
  28% {
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__logo--pulse img {
    animation: none;
  }

  .site-nav a::after,
  .lang-toggle::after,
  .theme-toggle::after {
    transition: none;
  }
}

.lang-toggle,
.theme-toggle {
  font-family: var(--font-nav);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.48rem 0.9rem;
  border: 1px solid var(--rule-strong);
  background: var(--surface-paper);
  color: var(--nav-link);
  cursor: pointer;
  position: relative;
  transition: border-color 0.28s ease, color 0.28s ease, background 0.28s ease;
}

.lang-toggle::after,
.theme-toggle::after {
  content: "";
  position: absolute;
  left: 15%;
  right: 15%;
  bottom: 0.35rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

[data-theme="dark"] .lang-toggle,
[data-theme="dark"] .theme-toggle {
  background: transparent;
}

.lang-toggle:hover,
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.lang-toggle:hover::after,
.theme-toggle:hover::after {
  transform: scaleX(1);
}

/* Page sections (κοινά intro headers σε about/collection) */
.page-intro {
  text-align: center;
  padding: clamp(2.6rem, 6vw, 4.5rem) 4vw 2.2rem;
  max-width: 58rem;
  margin: 0 auto;
}

.page-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  letter-spacing: 0.05em;
  text-transform: none;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.page-intro p {
  margin: 0;
  color: var(--text-muted);
  font-style: italic;
  font-size: 1.05rem;
}

.section-rule {
  height: 1px;
  max-width: 36rem;
  margin: 2rem auto 0;
  background: linear-gradient(90deg, transparent, var(--rule-strong), transparent);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 2.25rem 4vw 1.35rem;
  background: var(--footer-surface);
  border-top: 1px solid var(--rule-hairline);
  transition: background var(--transition), color var(--transition);
}

.site-footer__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: start;
  gap: 0.75rem 1.25rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.site-footer__aside {
  grid-column: 1;
  justify-self: start;
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  text-align: left;
  padding-top: 0.15rem;
}

.site-footer__center {
  grid-column: 2;
  justify-self: center;
  text-align: center;
  width: max-content;
  max-width: min(100%, 32rem);
}

.site-footer__bar {
  max-width: 1200px;
  margin: 1.35rem auto 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--rule-hairline);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  text-align: right;
}

.site-footer__copyright {
  margin: 0;
  font-family: var(--font-nav);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  line-height: 1.5;
  color: var(--text-muted);
}

[data-theme="dark"] .site-footer__copyright {
  color: rgba(179, 161, 134, 0.88);
}

.site-footer__hosting {
  margin: 0;
  font-family: var(--font-nav);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.site-footer__hosting a {
  color: var(--accent);
  text-decoration: none;
  margin-left: 0.25rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.site-footer__hosting a:hover {
  border-bottom-color: currentColor;
  opacity: 0.88;
}

.site-footer__logo {
  display: inline-flex;
  justify-content: center;
  margin: 0 auto 1.35rem;
  line-height: 0;
}

.site-footer__logo img {
  height: 52px;
  width: auto;
  max-width: min(70vw, 220px);
  object-fit: contain;
  display: block;
  opacity: 0.94;
}

.site-footer__logo:hover img {
  opacity: 1;
}

.site-footer__tagline {
  font-family: var(--font-nav);
  font-style: normal;
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  line-height: 1.65;
  margin: 0 0 1.35rem;
  color: var(--text);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

[data-theme="dark"] .site-footer__tagline {
  color: rgba(239, 228, 207, 0.9);
}

.site-footer__lines {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-nav);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.55;
  color: var(--text-muted);
}

.site-footer__lines li {
  margin: 0;
}

.site-footer__lines a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.site-footer__lines a:hover {
  border-bottom-color: currentColor;
  opacity: 0.88;
}

.site-footer .site-footer__logo {
  text-decoration: none;
  border: none;
}

.site-footer .site-footer__logo:hover {
  opacity: 1;
}

.site-footer__instagram {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.65rem;
  height: 2.65rem;
  color: var(--accent);
  border: 1px solid rgba(197, 160, 96, 0.45);
  border-radius: 10px;
  background: rgba(197, 160, 96, 0.06);
  text-decoration: none;
  opacity: 0;
  transform: translateY(8px) scale(0.92);
  animation: footerInstaReveal 1s cubic-bezier(0.22, 0.82, 0.26, 1) 0.35s forwards;
  transition:
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    border-color var(--transition),
    background var(--transition),
    color var(--transition),
    box-shadow 0.32s ease;
}

.site-footer__instagram::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 12px;
  border: 1px solid rgba(197, 160, 96, 0.35);
  opacity: 0;
  transform: scale(0.88);
  transition:
    opacity 0.35s ease,
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.site-footer__instagram svg {
  width: 1.2rem;
  height: 1.2rem;
  display: block;
  animation: footerInstaPulse 3.2s ease-in-out 1.4s infinite;
}

.site-footer__instagram:hover {
  transform: translateY(-3px) scale(1.04);
  color: #faf7f2;
  background: rgba(197, 160, 96, 0.22);
  border-color: var(--accent);
  box-shadow: 0 10px 28px rgba(197, 160, 96, 0.28);
}

.site-footer__instagram:hover::before {
  opacity: 1;
  transform: scale(1.08);
}

.site-footer__instagram:hover svg {
  animation: none;
  transform: scale(1.06);
}

.site-footer__instagram:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@keyframes footerInstaReveal {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes footerInstaPulse {
  0%,
  100% {
    filter: drop-shadow(0 0 0 rgba(197, 160, 96, 0));
  }
  50% {
    filter: drop-shadow(0 0 6px rgba(197, 160, 96, 0.45));
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__instagram {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .site-footer__instagram svg {
    animation: none;
  }
}

@media (max-width: 720px) {
  .site-footer__layout {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .site-footer__aside {
    grid-column: 1;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.85rem 1rem;
  }

  .site-footer__center {
    grid-column: 1;
    justify-self: center;
    width: 100%;
    max-width: none;
  }

  .site-footer__bar {
    align-items: center;
    text-align: center;
  }
}

[data-theme="dark"] .brand-logo--dark {
  display: block;
}

[data-theme="dark"] .brand-logo--light {
  display: none;
}

[data-theme="light"] .brand-logo--dark {
  display: none;
}

[data-theme="light"] .brand-logo--light {
  display: block;
}

html[data-theme="dark"] .site-footer__logo .brand-logo--dark {
  display: block !important;
}

html[data-theme="dark"] .site-footer__logo .brand-logo--light {
  display: none !important;
}

html[data-theme="light"] .site-footer__logo .brand-logo--dark {
  display: none !important;
}

html[data-theme="light"] .site-footer__logo .brand-logo--light {
  display: block !important;
}

/* Layout wrapper */
.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Global header responsive (μικρές οθόνες — στοίχιση καθέτως) */
@media (max-width: 640px) {
  .site-header__bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
  }

  .site-header__logo {
    order: -1;
  }

  .site-nav--left,
  .site-nav--right {
    justify-content: center;
    width: 100%;
  }
}

.mobile-nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
}

.mobile-nav-toggle {
  display: none !important;
}

.back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 1.6rem);
  bottom: clamp(1rem, 3vw, 1.6rem);
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(3, 6, 8, 0.68);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.75rem) scale(0.96);
  transition:
    opacity 0.28s ease,
    transform 0.28s ease,
    border-color 0.24s ease,
    color 0.24s ease,
    background 0.24s ease;
}

[data-theme="light"] .back-to-top {
  background: rgba(248, 245, 236, 0.82);
  color: var(--accent);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top.is-near-footer {
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.75rem) scale(0.96);
}

.back-to-top:hover {
  background: var(--accent);
  color: #faf7f2;
}

.back-to-top:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (min-width: 641px) {
  .site-header__bar {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
  }

  .site-header__logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
  }

  .site-nav--left {
    justify-content: flex-start;
  }

  .site-nav--right {
    justify-content: flex-end;
  }
}

@media (max-width: 900px) {
  .site-header {
    padding: 0.42rem 0.72rem;
    min-height: 3.55rem;
  }

  .site-header.is-mobile-nav-open::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 70;
    width: min(74vw, 18rem);
    min-height: 100vh;
    min-height: 100dvh;
    background: #f8f5ec;
    border-right: 1px solid var(--header-border);
    box-shadow: 20px 0 45px rgba(0, 0, 0, 0.22);
  }

  [data-theme="dark"] .site-header.is-mobile-nav-open::before {
    background: #030608;
    box-shadow: 22px 0 52px rgba(0, 0, 0, 0.48);
  }

  .site-header__bar {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    max-width: none;
    min-height: 42px;
  }

  .mobile-nav-panel {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 80;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0.25rem;
    width: min(74vw, 18rem);
    height: 100vh;
    height: 100dvh;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 5rem 1.25rem 1.35rem;
    background: transparent;
    border-right: 1px solid var(--header-border);
    box-shadow: none;
    overflow-y: auto;
    transform: translateX(-105%);
    transition: transform 0.42s cubic-bezier(0.22, 0.82, 0.26, 1);
  }

  [data-theme="dark"] .mobile-nav-panel {
    background: transparent;
    box-shadow: none;
  }

  .site-header.is-mobile-nav-open .mobile-nav-panel {
    transform: translateX(0);
  }

  .site-header__logo {
    display: none;
  }

  .site-header__logo.site-header__logo--topbar {
    position: static;
    left: auto;
    top: auto;
    display: flex;
    transform: none;
    order: 0;
    flex: 0 0 auto;
    margin-right: auto;
    z-index: 90;
  }

  .site-header__logo img {
    height: 42px;
    max-width: 108px;
  }

  .site-header__logo--topbar img {
    height: 42px;
    max-width: 112px;
  }

  .site-nav--left,
  .site-nav--right {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 100%;
    gap: 0.35rem;
  }

  .mobile-nav-panel .site-nav--left {
    padding-top: 0.15rem;
  }

  .site-nav a {
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    padding: 0.85rem 0.1rem;
    white-space: nowrap;
  }

  .lang-toggle,
  .theme-toggle {
    width: 100%;
    min-height: 2.6rem;
    margin-top: 0.25rem;
    font-size: 0.58rem;
    letter-spacing: 0.14em;
    padding: 0.62rem 0.75rem;
    white-space: nowrap;
  }

  .mobile-nav-toggle {
    position: relative;
    z-index: 90;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 0.18rem;
    width: 2.65rem;
    height: 2.65rem;
    padding: 0;
    margin-left: auto;
    border: 1px solid var(--rule-strong);
    border-radius: 999px;
    background: var(--surface-paper);
    color: var(--accent);
    cursor: pointer;
  }

  [data-theme="dark"] .mobile-nav-toggle {
    background: transparent;
  }

  .mobile-nav-toggle span {
    width: 0.28rem;
    height: 0.28rem;
    border-radius: 999px;
    background: currentColor;
    transition:
      width 0.28s ease,
      height 0.28s ease,
      border-radius 0.28s ease,
      transform 0.28s ease,
      opacity 0.28s ease;
  }

  .site-header.is-mobile-nav-open .mobile-nav-toggle span:nth-child(1) {
    width: 1rem;
    height: 1px;
    border-radius: 0;
    transform: translateX(0.58rem) rotate(45deg);
  }

  .site-header.is-mobile-nav-open .mobile-nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-mobile-nav-open .mobile-nav-toggle span:nth-child(3) {
    width: 1rem;
    height: 1px;
    border-radius: 0;
    transform: translateX(-0.58rem) rotate(-45deg);
  }
}

/* Header — collection mega menu */
.site-nav__item--mega {
  position: relative;
}

.site-nav__mega-trigger {
  font-family: var(--font-nav);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.55rem 0.85rem;
  color: var(--nav-link);
  opacity: 0.92;
  position: relative;
  transition: color 0.28s ease, opacity 0.28s ease;
}

.site-nav__mega-trigger::after {
  content: "";
  position: absolute;
  left: 0.65rem;
  right: 0.65rem;
  bottom: 0.38rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.site-nav__mega-trigger:hover {
  opacity: 1;
  color: var(--nav-link-hover);
}

.site-nav__mega-trigger:hover::after,
.site-nav__item--mega.is-open .site-nav__mega-trigger::after,
.site-nav__mega-trigger[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__mega-trigger[aria-current="page"] {
  opacity: 1;
  color: var(--accent);
}

.site-nav__item--mega-right .nav-mega {
  left: auto;
  right: 0;
  width: min(92vw, 380px);
}

.nav-mega {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  z-index: 80;
  width: min(92vw, 440px);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.985);
  transition:
    opacity 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.42s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.38s;
}

.site-nav__item--mega.is-open .nav-mega {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.nav-mega__panel {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  gap: 0;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid rgba(197, 160, 96, 0.35);
  background: var(--surface-paper);
  box-shadow:
    0 4px 0 rgba(197, 160, 96, 0.55),
    0 28px 60px rgba(0, 0, 0, 0.28);
}

[data-theme="dark"] .nav-mega__panel {
  background: #0a0908;
  border-color: rgba(197, 160, 96, 0.32);
  box-shadow:
    0 4px 0 rgba(197, 160, 96, 0.42),
    0 32px 70px rgba(0, 0, 0, 0.72);
}

.nav-mega__cats {
  list-style: none;
  margin: 0;
  padding: 0.55rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.nav-mega__cat {
  opacity: 0;
  transform: translateX(-0.65rem);
  transition:
    opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(0.08s + (var(--mega-i, 0) * 0.07s));
}

.site-nav__item--mega.is-open .nav-mega__cat {
  opacity: 1;
  transform: translateX(0);
}

.nav-mega__cat a {
  display: block;
  padding: 0.42rem 0.35rem;
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.3;
  color: var(--ink);
  border-radius: 4px;
  transition:
    color var(--transition),
    background var(--transition),
    transform 0.25s ease;
}

.nav-mega__cat a::after {
  display: none;
}

.nav-mega__cat a:hover {
  color: var(--accent);
  background: rgba(197, 160, 96, 0.1);
  transform: translateX(4px);
}

[data-theme="dark"] .nav-mega__cat a {
  color: rgba(240, 232, 218, 0.94);
}

.nav-mega__feature {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border-left: 1px solid rgba(197, 160, 96, 0.2);
}

.nav-mega__media {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  max-height: 88px;
}

.nav-mega__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-nav__item--mega.is-open .nav-mega__media img {
  transform: scale(1);
}

.nav-mega__copy {
  padding: 0.5rem 0.65rem 0.6rem;
}

.nav-mega__title {
  margin: 0 0 0.28rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink);
}

[data-theme="dark"] .nav-mega__title {
  color: rgba(240, 232, 218, 0.96);
}

.nav-mega__desc {
  margin: 0 0 0.45rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.nav-mega__cta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  transition: transform 0.22s ease, color var(--transition);
}

.nav-mega__cta::after {
  content: " →";
}

.nav-mega__cta:hover {
  transform: translateX(3px);
  color: var(--nav-link-hover);
}

@media (max-width: 900px) {
  .nav-mega {
    width: min(94vw, 400px);
  }

  .site-nav__item--mega-right .nav-mega {
    width: min(94vw, 360px);
  }

  .nav-mega__panel {
    grid-template-columns: 1fr;
  }

  .nav-mega__feature {
    border-left: 0;
    border-top: 1px solid rgba(197, 160, 96, 0.2);
  }
}

@media (max-width: 768px) {
  .site-nav__item--mega {
    width: 100%;
  }

  .site-nav__mega-trigger {
    width: 100%;
    text-align: center;
  }

  .nav-mega {
    position: static;
    width: 100%;
    transform: none;
    opacity: 1;
    visibility: visible;
    margin-top: 0.35rem;
  }

  .nav-mega[hidden] {
    display: none !important;
  }

  .site-nav__item--mega:not(.is-open) .nav-mega {
    display: none;
  }

  .site-nav__item--mega.is-open .nav-mega {
    display: block;
    pointer-events: auto;
  }

  .nav-mega__cat {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-mega,
  .nav-mega__cat,
  .nav-mega__media img {
    transition: none;
    transform: none;
  }

  .site-nav__item--mega.is-open .nav-mega {
    transform: none;
  }

  .nav-mega__cat {
    opacity: 1;
  }
}