/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'Cormorant Garamond', Georgia, serif;
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-mono: 'Space Mono', monospace;

  --hnu-red: #c0392b;
  --hnu-yellow: #e8a317;
  --hnu-blue: #2c5f8a;

  --transition-slow: 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* default theme (portal) */
  --bg: #0a0a0a;
  --bg-secondary: #141414;
  --text: #e8e4df;
  --text-muted: #8a8580;
  --accent: var(--hnu-yellow);
  --border: rgba(232, 228, 223, 0.12);
  --paper-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);

  /* viewport-fit — chrome heights for one-screen layouts */
  --viewport-h: 100dvh;
  --exp-chrome-top: 5.5rem;
  --exp-chrome-bottom: 9rem;
  --portal-hud-bottom: 14rem;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-serif);
  background: var(--bg);
  color: var(--text);
  min-height: var(--viewport-h);
  overflow: hidden;
  transition: background var(--transition-slow), color var(--transition-slow);
}

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

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

/* ── Language toggling via data-lang ── */
[data-lang="en"] .lang-zh { display: none; }
[data-lang="zh"] .lang-en { display: none; }

[data-lang="zh"] .btn {
  text-transform: none;
  letter-spacing: 0.06em;
}

[data-lang="zh"] .link-btn {
  text-transform: none;
  letter-spacing: 0.04em;
}

/* ── Grain overlay ── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 500;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}

/* ── Warp transition ── */
.warp-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg, #0a0a0a) 70%);
}

.warp-overlay.active {
  visibility: visible;
  animation: warpDefault 0.85s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.warp-overlay.warp--republic.active { animation: warpRepublic 0.85s ease forwards; }
.warp-overlay.warp--cyber.active    { animation: warpCyber 0.85s ease forwards; }
.warp-overlay.warp--hud.active      { animation: warpHud 0.85s ease forwards; }
.warp-overlay.warp--sepia.active,
.warp-overlay.warp--telegraph.active,
.warp-overlay.warp--evening.active  { animation: warpWarm 0.85s ease forwards; }

@keyframes warpDefault {
  0%   { opacity: 0; transform: scale(1); filter: blur(0); }
  35%  { opacity: 1; transform: scale(1.04); filter: blur(6px); }
  100% { opacity: 0; transform: scale(1.15); filter: blur(16px); }
}

@keyframes warpRepublic {
  0%   { opacity: 0; background: #fff; filter: contrast(1); }
  25%  { opacity: 0.95; background: #f5f2ec; filter: contrast(1.4) grayscale(1); }
  100% { opacity: 0; background: #f0ece4; filter: contrast(1) grayscale(0); }
}

@keyframes warpCyber {
  0%   { opacity: 0; filter: hue-rotate(0deg); background: #080808; }
  40%  { opacity: 1; filter: hue-rotate(20deg) contrast(1.3); background: radial-gradient(ellipse at center, rgba(201,162,39,0.3) 0%, #080808 70%); }
  100% { opacity: 0; filter: hue-rotate(0deg); }
}

@keyframes warpHud {
  0%   { opacity: 0; background-size: 8px 8px; background-image: linear-gradient(rgba(0,212,255,0.15) 1px, transparent 1px), linear-gradient(90deg, rgba(0,212,255,0.15) 1px, transparent 1px); }
  50%  { opacity: 1; background-size: 24px 24px; }
  100% { opacity: 0; background-size: 40px 40px; }
}

@keyframes warpWarm {
  0%   { opacity: 0; transform: scale(1.1); filter: sepia(0.4); }
  45%  { opacity: 0.9; transform: scale(1); filter: sepia(0.2); }
  100% { opacity: 0; transform: scale(0.98); filter: sepia(0); }
}

/* ── Views ── */
.view {
  position: fixed;
  inset: 0;
  height: var(--viewport-h);
  max-height: var(--viewport-h);
  display: none;
  flex-direction: column;
  z-index: 0;
  overflow: hidden;
}

.view.active {
  display: flex !important;
  z-index: 20;
}

.view.view--instant {
  transition: none;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.btn--primary {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--outline {
  border: 1px solid var(--accent);
  color: var(--accent);
}

.btn--outline:hover {
  background: var(--accent);
  color: var(--bg);
}

.btn--sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.75rem;
}

.link-btn {
  position: relative;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  transition: color 0.3s;
  text-transform: uppercase;
}

.link-btn::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-btn:hover::after { width: 100%; }

.link-btn:hover { color: var(--accent); }

button:focus-visible,
.logo-btn:focus-visible {
  outline: 1px solid var(--accent, var(--hnu-yellow));
  outline-offset: 3px;
}

.logo-btn {
  opacity: 0.85;
  transition: opacity 0.3s, transform 0.3s;
}

.logo-btn:hover {
  opacity: 1;
  transform: scale(1.05);
}

/* ══════════════════════════════════════
   PORTAL — Spatial index field
   ══════════════════════════════════════ */
.view--portal {
  overflow: hidden;
  background: #121212;
  color: #e8e4df;
  --portal-accent: var(--hnu-yellow);
}

.portal-space {
  position: fixed;
  inset: 0;
  z-index: 1;
  --portal-accent: var(--hnu-yellow);
  --pan-fx: 0.5;
  --pan-fy: 0.5;
  touch-action: none;
  cursor: grab;
  overflow: hidden;
  background-color: #161616;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position:
    calc((var(--pan-fx) - 0.5) * -48px) calc((var(--pan-fy) - 0.5) * -48px);
}

.portal-space__scene {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  pointer-events: none;
  will-change: transform;
}

.portal-space__layer {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform, opacity;
}

.portal-space__layer--far {
  z-index: 2;
  filter: blur(0.5px);
}

.portal-space__layer--mid {
  z-index: 3;
}

.portal-space__layer--near {
  z-index: 4;
  filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.35));
}

.portal-time-axis {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  overflow: visible;
  pointer-events: none;
  transform-origin: 0 0;
  will-change: transform;
}

.portal-time-spine {
  stroke: rgba(232, 163, 23, 0.5);
  stroke-width: 2;
  stroke-dasharray: 8 12;
}

.portal-time-tick {
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 1;
}

.portal-time-label {
  fill: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.portal-space__edges {
  position: absolute;
  left: 0;
  top: 0;
  overflow: visible;
  pointer-events: none;
}

.portal-edge {
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 1.2;
  transition: stroke 0.35s, stroke-opacity 0.35s;
}

.portal-edge--ghost {
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 1;
}

.portal-edge.is-active {
  stroke: var(--portal-accent, var(--hnu-yellow));
  stroke-opacity: 0.8;
  stroke-width: 1.5;
}

.portal-space__nodes {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.portal-space__fog {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 50%, transparent 45%, rgba(16, 16, 16, 0.35) 80%, rgba(16, 16, 16, 0.7) 100%);
}

.portal-space__depth-readout {
  position: absolute;
  top: 50%;
  left: 1.25rem;
  z-index: 5;
  transform: translateY(-50%);
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  padding-left: 0.75rem;
}

.portal-depth__z {
  color: var(--portal-accent, var(--hnu-yellow));
  font-size: 0.65rem;
}

.portal-space.is-dragging {
  cursor: grabbing;
}

.portal-node {
  position: absolute;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  pointer-events: auto;
  transform: translate(-50%, -50%);
  color: var(--node-accent, var(--hnu-yellow));
  opacity: 1;
  transition: filter 0.3s;
}

.portal-node--far {
  opacity: 0.65;
}

.portal-node--mid {
  opacity: 0.9;
}

.portal-node--near {
  opacity: 1;
}

.portal-node__box {
  position: absolute;
  inset: 5px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  background: rgba(30, 30, 30, 0.95);
  box-shadow:
    0 0 16px rgba(232, 163, 23, 0.25),
    inset 0 0 6px rgba(255, 255, 255, 0.08);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.portal-node.is-active .portal-node__box {
  background: var(--node-accent, var(--hnu-yellow));
  border-color: var(--node-accent, var(--hnu-yellow));
  box-shadow:
    0 0 28px rgba(232, 163, 23, 0.55),
    inset 0 0 8px rgba(255, 255, 255, 0.25);
}

.portal-node__id {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.55);
  pointer-events: none;
}

.portal-node__year {
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
  pointer-events: none;
}

.portal-node__name {
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
  pointer-events: none;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.portal-node.is-active .portal-node__id,
.portal-node.is-active .portal-node__year,
.portal-node.is-active .portal-node__name {
  color: var(--node-accent, var(--hnu-yellow));
}

.portal-space.is-ready .portal-node {
  animation: portalNodeIn 0.5s ease-out both;
}

.portal-space.is-ready .portal-node--far { animation-delay: 0.04s; }
.portal-space.is-ready .portal-node--mid { animation-delay: 0.1s; }
.portal-space.is-ready .portal-node--near { animation-delay: 0.16s; }

@keyframes portalNodeIn {
  from {
    opacity: 0.2;
    transform: translate(-50%, -50%) scale(0.6);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

.portal-space__reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 28px;
  height: 28px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0.85;
  z-index: 6;
  border: 1px solid var(--portal-accent, var(--hnu-yellow));
  border-radius: 1px;
  box-shadow: 0 0 14px rgba(232, 163, 23, 0.4);
}

.portal-space__reticle::before,
.portal-space__reticle::after {
  content: '';
  position: absolute;
  background: var(--portal-accent, var(--hnu-yellow));
}

.portal-space__reticle::before {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1px;
  transform: translateY(-50%);
}

.portal-space__reticle::after {
  left: 50%;
  top: 4px;
  bottom: 4px;
  width: 1px;
  transform: translateX(-50%);
}

.portal-hud__top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2.5rem;
  pointer-events: none;
}

.portal-hud__top .exp-logo,
.portal-hud__top .link-btn,
.portal-hud__top .nav-dot {
  pointer-events: auto;
}

.portal-hud__nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.portal-logo {
  width: min(200px, 28vw);
  opacity: 0.95;
  filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.4));
  background: rgba(18, 18, 18, 0.85);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.portal-hud__bottom {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem 2rem 1.25rem;
  background: linear-gradient(to top, rgba(14, 14, 14, 0.92) 0%, rgba(14, 14, 14, 0.55) 60%, transparent 100%);
  pointer-events: none;
}

.portal-hud__bottom .btn,
.portal-hud__bottom .link-btn {
  pointer-events: auto;
}

.portal-tagline {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 0.85rem;
}

.portal-era-readout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
  transition: color 0.4s ease;
}

.portal-era-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--portal-accent, var(--hnu-yellow));
  transition: color 0.4s ease;
}

.portal-era-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: #f0ece8;
}

.portal-era-index {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 0.25rem;
}

.portal-space-hint {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.85rem;
  max-width: 420px;
  line-height: 1.7;
  text-transform: uppercase;
}

.view--portal .link-btn {
  color: rgba(255, 255, 255, 0.6);
}

.view--portal .link-btn:hover {
  color: var(--portal-accent, var(--hnu-yellow));
}

.view--portal .nav-dot {
  color: rgba(255, 255, 255, 0.2);
}

.view--portal .btn--primary {
  background: transparent;
  color: var(--portal-accent, var(--hnu-yellow));
  border: 1px solid var(--portal-accent, var(--hnu-yellow));
  transition: background 0.35s, color 0.35s, box-shadow 0.35s, border-color 0.35s;
}

.view--portal .btn--primary:hover {
  background: var(--portal-accent, var(--hnu-yellow));
  color: #0e0e0e;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.view--portal .portal-enter {
  animation: pulsePortal 3s ease-in-out infinite;
}

@keyframes pulsePortal {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 163, 23, 0.25); }
  50%      { box-shadow: 0 0 0 10px rgba(232, 163, 23, 0); }
}

.portal-footer {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.85rem;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.25);
  text-transform: uppercase;
}

.nav-dot { color: var(--text-muted); opacity: 0.4; }

/* ══════════════════════════════════════
   EXPERIENCE
   ══════════════════════════════════════ */
.view--experience {
  background: var(--bg);
  overflow: hidden;
}

.exp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 3rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.exp-logo { width: 48px; height: auto; }

.exp-era {
  text-align: center;
  flex: 1;
}

.era-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.era-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.15em;
}

.exp-nav {
  display: flex;
  gap: 1.5rem;
}

.exp-main {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 3rem;
  position: relative;
  perspective: 1200px;
  overflow: hidden;
}

/* Era decorative layer — subtle, functional grid marks */
.era-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
  overflow: hidden;
}

.view--experience.active .era-decor { opacity: 1; }

body.theme-cyber .era-decor {
  background:
    linear-gradient(rgba(201, 162, 39, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 162, 39, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

body.theme-republic .era-decor {
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 47px,
    rgba(0, 0, 0, 0.04) 47px,
    rgba(0, 0, 0, 0.04) 48px
  );
}

body.theme-hud .era-decor::before,
body.theme-hud .era-decor::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  border: 1px solid rgba(0, 212, 255, 0.12);
}

body.theme-hud .era-decor::before { top: 2rem; left: 2rem; border-right: none; border-bottom: none; }
body.theme-hud .era-decor::after  { bottom: 2rem; right: 2rem; border-left: none; border-top: none; }

body.theme-telegraph .era-decor {
  background-image: radial-gradient(rgba(139, 37, 0, 0.08) 1px, transparent 1px);
  background-size: 16px 16px;
}

body.theme-evening .era-decor::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, rgba(196, 149, 106, 0.06), transparent);
}

.newspaper-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: min(520px, 90vw);
  max-height: 100%;
  width: 100%;
  position: relative;
  z-index: 1;
}

.newspaper-stage.is-revealing {
  animation: newspaperReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.newspaper-stage.is-revealing .newspaper-frame {
  animation: newspaperPrint 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes newspaperPrint {
  0%   { clip-path: inset(0 0 100% 0); }
  100% { clip-path: inset(0 0 0 0); }
}

.newspaper-tilt {
  width: 100%;
  max-height: calc(var(--viewport-h) - var(--exp-chrome-top) - var(--exp-chrome-bottom));
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out;
  will-change: transform;
  display: flex;
  justify-content: center;
}

.newspaper-frame {
  position: relative;
  display: inline-block;
  max-width: 100%;
  line-height: 0;
  box-shadow: var(--paper-shadow);
  transition: box-shadow var(--transition-slow);
  overflow: hidden;
}

.newspaper-frame::before {
  content: '';
  position: absolute;
  inset: -1px;
  border: 1px solid var(--border);
  pointer-events: none;
  z-index: 2;
}

.newspaper-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23p)'/%3E%3C/svg%3E");
  background-size: 120px;
  mix-blend-mode: multiply;
}

.newspaper-skeleton {
  display: block;
  width: min(520px, 90vw);
  max-width: 100%;
  aspect-ratio: 3 / 4;
  max-height: calc(var(--viewport-h) - var(--exp-chrome-top) - var(--exp-chrome-bottom) - 2rem);
  background: linear-gradient(110deg, rgba(255,255,255,0.05) 30%, rgba(255,255,255,0.12) 50%, rgba(255,255,255,0.05) 70%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.4s ease infinite;
}

.newspaper-skeleton.hidden { display: none; }

.newspaper-frame:has(.newspaper-skeleton:not(.hidden)) .newspaper-img.is-loading {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.newspaper-img {
  display: block;
  max-width: min(520px, 90vw);
  max-height: calc(var(--viewport-h) - var(--exp-chrome-top) - var(--exp-chrome-bottom) - 2rem);
  width: auto;
  height: auto;
  transition: filter var(--transition-slow), opacity 0.4s ease;
}

.newspaper-img.is-loading { opacity: 0; }

@keyframes skeletonShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes newspaperReveal {
  from { opacity: 0; transform: translateY(32px) scale(0.97); filter: blur(3px); }
  to   { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

.newspaper-caption {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  flex-shrink: 0;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-align: center;
  font-style: italic;
}

.exp-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 3rem 1.25rem;
  flex-shrink: 0;
}

.exp-footer-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.exp-kbd-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  opacity: 0.45;
  text-transform: uppercase;
}

.exp-kbd-hint kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.2rem;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: inherit;
  background: rgba(255, 255, 255, 0.03);
}

.exp-touch-hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  opacity: 0.5;
  text-transform: uppercase;
}

/* ── Experience era chrome & stamp ── */
.era-chrome {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.era-chrome__masthead {
  position: absolute;
  top: 5.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.35em;
  color: var(--accent);
  opacity: 0;
  white-space: nowrap;
  text-transform: uppercase;
  transition: opacity var(--transition-slow);
}

body[class*="theme-"] .era-chrome__masthead { opacity: 0.35; }

.era-chrome__hud { position: absolute; inset: 0; }

.era-chrome__corner {
  position: absolute;
  width: 48px;
  height: 48px;
  border: 1px solid transparent;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.era-chrome__corner--tl { top: 5rem; left: 2rem; border-top-color: currentColor; border-left-color: currentColor; }
.era-chrome__corner--tr { top: 5rem; right: 2rem; border-top-color: currentColor; border-right-color: currentColor; }
.era-chrome__corner--bl { bottom: 6rem; left: 2rem; border-bottom-color: currentColor; border-left-color: currentColor; }
.era-chrome__corner--br { bottom: 6rem; right: 2rem; border-bottom-color: currentColor; border-right-color: currentColor; }

.era-chrome__scanline {
  position: absolute;
  inset: 0;
  opacity: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 212, 255, 0.02) 2px,
    rgba(0, 212, 255, 0.02) 4px
  );
}

.era-chrome__ticker {
  position: absolute;
  bottom: 5.5rem;
  left: 0;
  right: 0;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  opacity: 0.4;
  white-space: nowrap;
}

.era-chrome__ticker span {
  display: inline-block;
  animation: tickerScroll 18s linear infinite;
}

@keyframes tickerScroll {
  0%   { transform: translateX(100vw); }
  100% { transform: translateX(-100%); }
}

body.theme-cyber .era-chrome__corner,
body.theme-hud .era-chrome__corner {
  opacity: 0.25;
  color: var(--accent);
}

body.theme-hud .era-chrome__scanline { opacity: 1; }

body.theme-republic .era-chrome__masthead { opacity: 0.5; font-family: var(--font-display); letter-spacing: 0.2em; }

body.theme-telegraph .era-chrome__ticker { opacity: 0.55; }

.exp-stamp {
  position: absolute;
  top: 1rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  opacity: 0.45;
  z-index: 2;
  border: 1px dashed var(--border);
  padding: 0.5rem 0.75rem;
  transform: rotate(-2deg);
}

.exp-stamp__label {
  text-transform: uppercase;
  font-size: 0.5rem;
  opacity: 0.7;
}

.exp-stamp__id {
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.18em;
}

/* ══════════════════════════════════════
   GALLERY
   ══════════════════════════════════════ */
.view--gallery {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(192, 57, 43, 0.04) 0%, transparent 30%),
    linear-gradient(90deg, rgba(232, 163, 23, 0.02) 0%, transparent 40%),
    #0b0b0b;
}

body.gallery-active {
  background: #0b0b0b;
}

.gallery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.gallery-title h1 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: 0.15em;
}

.gallery-title p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.08em;
}

.gallery-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 3rem 1rem;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.gallery-filter {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  transition: all 0.3s;
}

.gallery-filter:hover {
  border-color: var(--hnu-yellow);
  color: var(--hnu-yellow);
}

.gallery-filter.is-active {
  background: rgba(232, 163, 23, 0.12);
  border-color: var(--hnu-yellow);
  color: var(--hnu-yellow);
}

.gallery-position {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  opacity: 0.6;
  white-space: nowrap;
}

.gallery-scroll {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 2rem;
  padding: 1.5rem 3rem 2rem;
  overflow-y: auto;
  overflow-x: hidden;
  max-width: 1500px;
  margin: 0 auto;
  width: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.gallery-scroll::-webkit-scrollbar {
  display: none;
}

.gallery-timeline-rail {
  flex-shrink: 0;
  width: 56px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 1rem;
}

.gallery-timeline-rail::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 50%;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(192, 57, 43, 0.35) 15%,
    rgba(232, 163, 23, 0.35) 50%,
    rgba(44, 95, 138, 0.35) 85%,
    transparent
  );
  transform: translateX(-50%);
}

.gallery-rail-year {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  min-height: 80px;
}

.gallery-rail-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--hnu-red);
  box-shadow: 0 0 8px rgba(192, 57, 43, 0.4);
  position: relative;
  z-index: 1;
}

.gallery-rail-label {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  flex: 1;
  align-content: start;
}

.gallery-card {
  position: relative;
  cursor: pointer;
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.gallery-card:hover {
  transform: translateY(-6px);
}

.gallery-card.is-visible:hover {
  transform: translateY(-6px);
}

.gallery-card.is-current .gallery-card-inner {
  border-color: var(--card-accent, var(--hnu-yellow));
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.5),
    0 0 0 2px var(--card-accent, var(--hnu-yellow));
}

.gallery-card.is-current::after {
  content: '';
  position: absolute;
  top: -8px;
  right: -8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--card-accent, var(--hnu-yellow));
  box-shadow: 0 0 12px var(--card-accent, var(--hnu-yellow));
}

.gallery-card-inner {
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  aspect-ratio: 3/4;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color 0.4s, box-shadow 0.4s;
}

.gallery-card:hover .gallery-card-inner {
  border-color: var(--card-accent, var(--hnu-yellow));
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--card-accent, transparent);
}

.gallery-card-inner picture {
  display: block;
  width: 100%;
  height: 100%;
}

.gallery-card-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s;
}

.gallery-card:hover .gallery-card-inner img {
  transform: scale(1.03);
}

.gallery-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.25) 50%, transparent 70%);
  opacity: 0.85;
  transition: opacity 0.4s;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
}

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

.gallery-card-cat {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 0.35rem;
}

.gallery-card-travel {
  margin-top: 0.75rem;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--card-accent, var(--hnu-yellow));
  color: var(--card-accent, var(--hnu-yellow));
  background: rgba(0, 0, 0, 0.35);
  transition: all 0.3s;
}

.gallery-card-travel:hover {
  background: var(--card-accent, var(--hnu-yellow));
  color: #0a0a0a;
}

.gallery-card-era {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--card-accent, var(--hnu-yellow));
  margin-bottom: 0.25rem;
}

.gallery-card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
}

.gallery-card-meta {
  margin-top: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.gallery-card-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--card-accent, var(--text-muted));
  letter-spacing: 0.15em;
  opacity: 0.85;
}

.gallery-card-index {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ══════════════════════════════════════
   ABOUT
   ══════════════════════════════════════ */
.view--about {
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(44, 95, 138, 0.06) 0%, transparent 45%),
    radial-gradient(ellipse at 10% 80%, rgba(192, 57, 43, 0.05) 0%, transparent 40%),
    #0a0a0a;
}

body.about-active {
  background: #0a0a0a;
}

.about-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 3rem;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.about-nav {
  display: flex;
  gap: 1.5rem;
  justify-content: flex-end;
}

.about-logo {
  width: min(200px, 25vw);
  opacity: 0.9;
}

.about-main {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 1.5rem 4rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  align-items: center;
  overflow-y: auto;
  overflow-x: hidden;
}

.about-col--text h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 2rem;
}

.about-block {
  margin-bottom: 1.5rem;
}

.about-block h2 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--hnu-yellow);
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.about-block p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-muted);
  font-weight: 300;
}

.about-meta {
  display: grid;
  gap: 1rem;
}

.about-meta div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.25rem 1rem;
  align-items: baseline;
}

.about-meta dt {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--hnu-blue);
}

.about-meta dd {
  font-size: 0.9rem;
  color: var(--text-muted);
  grid-column: 2;
}

.about-credits {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.about-visual-caption {
  margin-top: 1.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  opacity: 0.55;
  text-transform: uppercase;
}

.placeholder-text {
  font-style: italic;
  opacity: 0.5;
}

.about-preview-stack {
  position: relative;
  height: min(480px, 32dvh);
}

.about-preview {
  position: absolute;
  width: 55%;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s ease;
}

.about-preview--1 {
  top: 0;
  left: 0;
  transform: rotate(-4deg);
  z-index: 1;
}

.about-preview--2 {
  top: 60px;
  right: 0;
  transform: rotate(3deg);
  z-index: 2;
}

.about-preview--3 {
  bottom: 0;
  left: 20%;
  transform: rotate(-1deg);
  z-index: 3;
  width: 50%;
}

.about-preview-stack:hover .about-preview--1 { transform: rotate(-6deg) translateY(-4px); }
.about-preview-stack:hover .about-preview--2 { transform: rotate(5deg) translateY(-4px); }
.about-preview-stack:hover .about-preview--3 { transform: rotate(-2deg) translateY(-4px); }

.about-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1rem 3rem 1.5rem;
  flex-shrink: 0;
}

/* ══════════════════════════════════════
   LIGHTBOX
   ══════════════════════════════════════ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9500;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  --lb-accent: var(--hnu-yellow);
  transition: background 0.5s ease;
}

.lightbox.lb--republic { background: rgba(240, 236, 228, 0.96); --lb-accent: #1a1a1a; }
.lightbox.lb--cyber    { background: radial-gradient(ellipse at center, rgba(201,162,39,0.08) 0%, rgba(8,8,8,0.95) 70%); --lb-accent: #c9a227; }
.lightbox.lb--hud      { background: rgba(5, 10, 18, 0.95); --lb-accent: #00d4ff; }
.lightbox.lb--sepia    { background: rgba(42, 34, 24, 0.95); --lb-accent: #b8956a; }
.lightbox.lb--telegraph { background: rgba(30, 24, 16, 0.95); --lb-accent: #8b2500; }
.lightbox.lb--evening  { background: rgba(26, 22, 16, 0.95); --lb-accent: #c4956a; }

.lightbox.lb--republic .lightbox-caption,
.lightbox.lb--republic .lightbox-close,
.lightbox.lb--republic .lightbox-prev,
.lightbox.lb--republic .lightbox-next { color: rgba(0, 0, 0, 0.45); }

.lightbox.lb--republic .lightbox-close:hover,
.lightbox.lb--republic .lightbox-prev:hover,
.lightbox.lb--republic .lightbox-next:hover { color: #1a1a1a; }

.lightbox[hidden] { display: none; }

.lightbox-content {
  max-width: min(480px, 85vw);
  text-align: center;
}

.lightbox-era {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: var(--lb-accent, var(--hnu-yellow));
  margin-bottom: 1rem;
}

.lightbox-travel {
  margin-top: 1.5rem;
  background: var(--lb-accent, var(--hnu-yellow));
  color: #0a0a0a;
}

.lightbox-travel:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.lightbox.lb--republic .lightbox-travel {
  background: #1a1a1a;
  color: #f0ece4;
}

.lightbox-content img {
  width: 100%;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}

.lightbox-caption {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
}

.lightbox.lb--republic .lightbox-caption { color: rgba(0, 0, 0, 0.55); }

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 2rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.3s;
  line-height: 1;
}

.lightbox-close:hover { color: var(--lb-accent, #fff); }

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: rgba(255,255,255,0.4);
  padding: 1rem;
  transition: color 0.3s;
}

.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }
.lightbox-prev:hover, .lightbox-next:hover { color: var(--lb-accent, #fff); }

/* ══════════════════════════════════════
   ERA THEMES
   ══════════════════════════════════════ */

/* Cyber Future */
body.theme-cyber {
  --bg: #080808;
  --text: #d4c5a0;
  --text-muted: #7a7060;
  --accent: #c9a227;
  --border: rgba(201, 162, 39, 0.15);
  --paper-shadow: 0 0 60px rgba(201, 162, 39, 0.15), 0 24px 80px rgba(0, 0, 0, 0.7);
}

body.theme-cyber .newspaper-img {
  filter: contrast(1.05) saturate(1.1);
}

body.theme-cyber .view--experience {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201, 162, 39, 0.06) 0%, transparent 60%),
    #080808;
}

/* Republic B&W */
body.theme-republic {
  --bg: #f0ece4;
  --bg-secondary: #e8e4dc;
  --text: #1a1a1a;
  --text-muted: #666;
  --accent: #1a1a1a;
  --border: rgba(0, 0, 0, 0.12);
  --paper-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

body.theme-republic .grain { opacity: 0.06; }

body.theme-republic .newspaper-img {
  filter: grayscale(1) contrast(1.15);
}

body.theme-republic .exp-header,
body.theme-republic .exp-footer {
  border-color: rgba(0,0,0,0.08);
}

body.theme-republic .btn--ghost {
  border-color: rgba(0,0,0,0.2);
}

body.theme-republic .btn--ghost:hover {
  border-color: #1a1a1a;
  color: #1a1a1a;
}

body.theme-republic .btn--outline {
  border-color: #1a1a1a;
  color: #1a1a1a;
}

body.theme-republic .btn--outline:hover {
  background: #1a1a1a;
  color: #f0ece4;
}

body.theme-republic .link-btn { color: #888; }
body.theme-republic .link-btn:hover { color: #1a1a1a; }

/* Sepia Memory */
body.theme-sepia {
  --bg: #2a2218;
  --text: #d9cbb8;
  --text-muted: #9a8870;
  --accent: #b8956a;
  --border: rgba(184, 149, 106, 0.15);
  --paper-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

body.theme-sepia .view--experience {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(184, 149, 106, 0.08) 0%, transparent 50%),
    #2a2218;
}

body.theme-sepia .newspaper-img {
  filter: sepia(0.35) contrast(1.05);
}

/* HUD / Parallel Space */
body.theme-hud {
  --bg: #050a12;
  --text: #c8d8e8;
  --text-muted: #5a7080;
  --accent: #00d4ff;
  --border: rgba(0, 212, 255, 0.12);
  --paper-shadow: 0 0 40px rgba(0, 212, 255, 0.1), 0 24px 80px rgba(0, 0, 0, 0.6);
}

body.theme-hud .view--experience {
  background:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    #050a12;
  background-size: 40px 40px;
}

body.theme-hud .newspaper-img {
  filter: contrast(1.08) saturate(0.9);
}

/* Lunan Telegraph */
body.theme-telegraph {
  --bg: #1e1810;
  --text: #e8dcc8;
  --text-muted: #9a8878;
  --accent: #8b2500;
  --border: rgba(139, 37, 0, 0.2);
  --paper-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

body.theme-telegraph .view--experience {
  background:
    radial-gradient(ellipse at 70% 30%, rgba(139, 37, 0, 0.06) 0%, transparent 50%),
    #1e1810;
}

body.theme-telegraph .newspaper-img {
  filter: sepia(0.15) contrast(1.02);
}

/* Evening / Osmanthus */
body.theme-evening {
  --bg: #1a1610;
  --text: #e0d4c0;
  --text-muted: #8a8070;
  --accent: #c4956a;
  --border: rgba(196, 149, 106, 0.15);
  --paper-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

body.theme-evening .view--experience {
  background:
    radial-gradient(ellipse at 50% 80%, rgba(196, 149, 106, 0.08) 0%, transparent 50%),
    #1a1610;
}

body.theme-republic .exp-kbd-hint kbd {
  background: rgba(0, 0, 0, 0.04);
}

/* ══════════════════════════════════════
   LANG TOGGLE (fixed corner)
   ══════════════════════════════════════ */
.lang-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 10050;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.4rem 0.8rem;
  transition: all 0.3s;
  opacity: 0.6;
}

.lang-toggle:hover {
  opacity: 1;
  border-color: var(--accent);
  color: var(--accent);
}

body.portal-active {
  background: #121212;
}

body.portal-active .lang-toggle {
  color: rgba(255, 255, 255, 0.45);
  border-color: rgba(255, 255, 255, 0.12);
}

body.portal-active .lang-toggle:hover {
  color: var(--portal-accent, var(--hnu-yellow));
  border-color: var(--portal-accent, var(--hnu-yellow));
}

body.portal-active .grain {
  opacity: 0.02;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9600;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.25rem;
  background: rgba(20, 20, 20, 0.95);
  border: 1px solid var(--hnu-yellow);
  color: var(--hnu-yellow);
  backdrop-filter: blur(8px);
  animation: toastIn 0.35s ease;
}

.toast[hidden] { display: none; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

body.portal-active .toast {
  background: rgba(255, 255, 255, 0.95);
  color: var(--hnu-red);
  border-color: var(--hnu-red);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .gallery-scroll {
    padding: 1.5rem 2rem 2rem;
    flex-direction: column;
  }

  .gallery-timeline-rail {
    flex-direction: row;
    width: 100%;
    height: auto;
    padding: 0 0 1rem;
    justify-content: space-around;
  }

  .gallery-timeline-rail::before {
    top: 50%;
    bottom: auto;
    left: 5%;
    right: 5%;
    width: auto;
    height: 1px;
    transform: none;
  }

  .gallery-rail-year {
    flex-direction: row;
    min-height: auto;
    gap: 0.35rem;
  }

  .gallery-rail-label {
    writing-mode: horizontal-tb;
    transform: none;
    margin-top: 0;
  }

  .gallery-toolbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 2rem 1.25rem;
  }

  .about-main {
    grid-template-columns: 1fr;
    padding: 2rem;
  }

  .about-header {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
  }

  .about-logo {
    grid-column: 2;
    justify-self: end;
  }

  .about-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  .about-preview-stack { height: min(320px, 28dvh); }

  .portal-hud__top { padding: 1rem 1.5rem; }
  .portal-hud__bottom { padding: 1.5rem 1.25rem 1rem; }
  .portal-era-name { font-size: 1.25rem; }

  .exp-stamp { right: 1.25rem; top: 0.5rem; }
}

@media (max-width: 600px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .exp-header, .gallery-header { padding: 1rem 1.25rem; }
  .exp-main { padding: 1.25rem; }
  .exp-nav { gap: 0.75rem; }
  .exp-nav .link-btn { font-size: 0.7rem; }
  .era-name { font-size: 1.1rem; }
  .exp-kbd-hint { display: none; }
  .exp-touch-hint { display: block; }

  .portal-hud__top {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .portal-logo { width: min(160px, 45vw); }

  .portal-space-hint {
    font-size: 0.5rem;
  }

  .portal-hud__bottom .btn--primary {
    width: 100%;
    max-width: 320px;
  }

  .portal-space__depth-readout {
    bottom: 38%;
    top: auto;
    transform: none;
    font-size: 0.5rem;
  }

  .gallery-header { flex-wrap: wrap; gap: 0.75rem; }
  .gallery-scroll { padding: 1rem 1.25rem 2rem; }
  .gallery-toolbar { padding: 0 1.25rem 1rem; }
  .gallery-timeline-rail { display: none; }

  .era-chrome__masthead { display: none; }
  .exp-stamp { display: none; }
  .exp-footer-actions { flex-direction: column; width: 100%; }
  .exp-footer-actions .btn { width: 100%; }
}

/* ── Short viewport (laptop 1366×768) ── */
@media (max-height: 800px) {
  :root {
    --exp-chrome-top: 4.75rem;
    --exp-chrome-bottom: 7.5rem;
    --portal-hud-bottom: 11rem;
  }

  .btn {
    padding: 0.65rem 1.5rem;
    font-size: 0.82rem;
  }

  .exp-header {
    padding: 1rem 2.5rem;
  }

  .exp-main {
    padding: 0.75rem 2.5rem;
  }

  .era-name {
    font-size: 1.2rem;
  }

  .exp-kbd-hint {
    display: none;
  }

  .exp-footer {
    padding: 0.5rem 2.5rem 1rem;
    gap: 0.5rem;
  }

  .exp-footer-actions {
    gap: 0.75rem;
  }

  .gallery-header {
    padding: 1rem 2.5rem;
  }

  .gallery-title h1 {
    font-size: 1.35rem;
  }

  .gallery-toolbar {
    padding: 0 2.5rem 0.75rem;
  }

  .gallery-scroll {
    padding: 1rem 2.5rem 1.5rem;
    gap: 1.5rem;
  }

  .about-header {
    padding: 1rem 2.5rem;
  }

  .about-main {
    gap: 2rem;
    padding: 1rem 2.5rem;
  }

  .about-col--text h1 {
    font-size: 1.6rem;
    margin-bottom: 1.25rem;
  }

  .about-block {
    margin-bottom: 1rem;
  }

  .about-block p {
    font-size: 0.88rem;
    line-height: 1.75;
  }

  .about-preview-stack {
    height: min(360px, 30dvh);
  }

  .about-footer {
    padding: 0.75rem 2.5rem 1rem;
    gap: 1.25rem;
  }

  .portal-hud__top {
    padding: 1rem 2rem;
  }

  .portal-logo {
    width: min(170px, 24vw);
  }

  .portal-hud__bottom {
    padding: 1.25rem 1.5rem 1rem;
  }

  .portal-tagline {
    font-size: 0.75rem;
    margin-bottom: 0.75rem;
  }

  .portal-era-readout {
    margin-bottom: 0.65rem;
    gap: 0.2rem;
  }

  .portal-era-name {
    font-size: 1.25rem;
  }

  .portal-space-hint {
    margin-bottom: 0.75rem;
    font-size: 0.5rem;
    line-height: 1.5;
  }

  .portal-footer {
    margin-top: 0.75rem;
    font-size: 0.58rem;
  }
}

@media (max-height: 700px) {
  :root {
    --exp-chrome-top: 4.25rem;
    --exp-chrome-bottom: 6.75rem;
    --portal-hud-bottom: 9.5rem;
  }

  .portal-tagline {
    display: none;
  }

  .portal-footer {
    display: none;
  }

  .portal-space-hint {
    margin-bottom: 0.5rem;
  }

  .portal-era-name {
    font-size: 1.1rem;
  }

  .about-preview-stack {
    height: min(280px, 26dvh);
  }

  .about-col--text h1 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
  }

  .exp-header {
    padding: 0.75rem 2rem;
  }

  .exp-logo {
    width: 40px;
  }

  .gallery-grid {
    gap: 1.25rem;
  }
}

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

  .view { transform: none; }
  .view.active { display: flex; }
  .newspaper-tilt { transition: none; }
  .gallery-card { opacity: 1; transform: none; }
  .era-chrome__ticker span { animation: none; }
  .portal-space.is-ready .portal-node { animation: none; }
  .portal-space__scene { transition: none; }
}