/* ================================================================
   IMPECCABLE DESIGN SYSTEM — Editorial Warmth v2
   Distinctive, magazine-quality report with rich interactions.
   Mobile-first · OKLCH · 4pt base · Exponential easing
   ================================================================ */

/* --- Design Tokens --- */
:root {
  /* Primary: Warm terracotta — trustworthy, human */
  --clr-primary: oklch(50% 0.14 25);
  --clr-primary-hover: oklch(58% 0.16 25);
  --clr-primary-muted: oklch(50% 0.06 25);
  --clr-primary-surface: oklch(95% 0.02 25);

  /* Secondary: Deep forest — growth, community */
  --clr-secondary: oklch(42% 0.1 155);
  --clr-secondary-hover: oklch(50% 0.12 155);

  /* Accent: Burnished gold — warmth, achievement */
  --clr-accent: oklch(65% 0.13 75);
  --clr-accent-muted: oklch(88% 0.05 75);

  /* Neutrals — warm-tinted, never pure gray */
  --clr-bg: oklch(97.5% 0.006 75);
  --clr-surface: oklch(99% 0.004 75);
  --clr-text: oklch(22% 0.015 50);
  --clr-text-secondary: oklch(38% 0.015 50);
  --clr-text-muted: oklch(55% 0.012 50);
  --clr-border: oklch(90% 0.01 75);
  --clr-border-strong: oklch(82% 0.015 75);

  /* Hero */
  --clr-hero-bg: oklch(18% 0.02 50);
  --clr-hero-text: oklch(95% 0.006 75);
  --clr-hero-muted: oklch(70% 0.01 75);

  /* Typography */
  --font-display: 'Fraunces', 'Noto Serif SC', Georgia, serif;
  --font-heading: 'Noto Serif SC', 'SimSun', Georgia, serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;

  /* 4pt spacing scale */
  --sp-4: 4px;
  --sp-8: 8px;
  --sp-12: 12px;
  --sp-16: 16px;
  --sp-24: 24px;
  --sp-32: 32px;
  --sp-48: 48px;
  --sp-64: 64px;
  --sp-96: 96px;

  /* Layout */
  --max-w: 920px;
  --content-measure: 65ch;
  --nav-h: 52px;

  /* Subtle radii */
  --radius: 6px;
  --radius-sm: 4px;

  /* Depth through surfaces, not heavy shadows */
  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.04);
  --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.06);
  --shadow-lg: 0 8px 24px oklch(0% 0 0 / 0.08);

  /* Exponential easing (Impeccable) */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* 100/300/500 duration rule */
  --dur-instant: 120ms;
  --dur-fast: 200ms;
  --dur-normal: 350ms;
  --dur-slow: 500ms;
  --dur-entrance: 700ms;

  /* Z-index scale */
  --z-progress: 100;
  --z-nav: 50;
  --z-fab: 40;
  --z-modal: 60;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--sp-24));
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

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

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--dur-instant) var(--ease-out-quart);
}

a:hover {
  color: var(--clr-primary-hover);
}

::selection {
  background: var(--clr-primary);
  color: var(--clr-hero-text);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ================================================================
   READING PROGRESS BAR — Thin accent line at very top
   ================================================================ */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  z-index: var(--z-progress);
  transition: none;
  will-change: width;
}

/* ================================================================
   HERO — Cinematic entrance with staggered text reveals
   ================================================================ */
.hero {
  background: var(--clr-hero-bg);
  color: var(--clr-hero-text);
  padding: var(--sp-64) var(--sp-16) var(--sp-48);
  position: relative;
  overflow: hidden;
  min-height: 50vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 25%, oklch(50% 0.08 25 / 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 75%, oklch(42% 0.06 155 / 0.12) 0%, transparent 50%);
  pointer-events: none;
}

/* Decorative noise texture overlay */
.hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--clr-bg), transparent);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

/* Staggered hero entrance */
.hero__badge,
.hero h1,
.hero__sub,
.hero__period {
  opacity: 0;
  transform: translateY(24px);
  animation: hero-in var(--dur-entrance) var(--ease-out-expo) forwards;
}

.hero__badge {
  animation-delay: 100ms;
}

.hero h1 {
  animation-delay: 250ms;
}

.hero__sub {
  animation-delay: 400ms;
}

.hero__period {
  animation-delay: 520ms;
}

@keyframes hero-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-12);
  color: var(--clr-accent);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--sp-24);
}

.hero__badge-line {
  width: 40px;
  height: 1px;
  background: var(--clr-accent);
  opacity: 0.5;
  animation: line-grow 1.2s var(--ease-out-expo) 200ms both;
}

@keyframes line-grow {
  from {
    width: 0;
    opacity: 0;
  }

  to {
    width: 40px;
    opacity: 0.5;
  }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-16);
  max-width: 16ch;
}

.hero__sub {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 400;
  color: var(--clr-hero-muted);
  margin-bottom: var(--sp-8);
}

.hero__period {
  font-size: 0.82rem;
  color: oklch(55% 0.008 75);
  letter-spacing: 0.5px;
}

/* Decorative vertical line on the right side of hero */
.hero__decor {
  position: absolute;
  right: 8%;
  top: 20%;
  width: 1px;
  height: 0;
  background: linear-gradient(to bottom, transparent, oklch(65% 0.13 75 / 0.3), transparent);
  animation: decor-line 1.5s var(--ease-out-expo) 600ms forwards;
}

@keyframes decor-line {
  to {
    height: 60%;
  }
}

/* ================================================================
   NAV — Clean with scroll progress indicator
   ================================================================ */
.nav {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  transition: box-shadow var(--dur-fast) var(--ease-out-quart);
}

.nav--scrolled {
  box-shadow: var(--shadow-md);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-12);
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.nav__inner::-webkit-scrollbar {
  display: none;
}

.nav a {
  display: flex;
  align-items: center;
  padding: var(--sp-12);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition:
    color var(--dur-instant) var(--ease-out-quart),
    border-color var(--dur-normal) var(--ease-out-quart);
  cursor: pointer;
  min-height: var(--nav-h);
  -webkit-tap-highlight-color: transparent;
  position: relative;
}

.nav a:hover {
  color: var(--clr-text);
}

.nav a:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.nav a.active {
  color: var(--clr-primary);
  border-bottom-color: var(--clr-primary);
  font-weight: 600;
}

/* ================================================================
   CONTAINER
   ================================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-16);
}

/* ================================================================
   STATS — Editorial numbers with staggered count-up
   ================================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  padding: var(--sp-48) 0 var(--sp-32);
}

.stat {
  text-align: center;
  padding: var(--sp-16) var(--sp-8);
  position: relative;
}

/* Vertical divider between stats */
.stat+.stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--clr-border);
}

.stat__num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--clr-primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: transform var(--dur-fast) var(--ease-out-quart);
}

/* Subtle hover lift on stats */
.stat:hover .stat__num {
  transform: translateY(-2px);
}

.stat__unit {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-top: var(--sp-4);
}

.stat__label {
  font-size: 0.68rem;
  color: var(--clr-text-muted);
  margin-top: 2px;
  letter-spacing: 0.3px;
}

/* ================================================================
   SECTIONS — Editorial headings with animated accent bar
   ================================================================ */
.section {
  padding: var(--sp-48) 0 var(--sp-24);
}

.section__hdr {
  display: flex;
  align-items: baseline;
  gap: var(--sp-16);
  margin-bottom: var(--sp-24);
  padding-bottom: var(--sp-16);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
}

/* Animated accent bar that grows on reveal */
.section__hdr::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-primary-muted);
  transition: width 0.8s var(--ease-out-expo);
}

.section.visible .section__hdr::after {
  width: 100%;
}

/* Color-coded accent bars */
.section--primary .section__hdr::after {
  background: var(--clr-primary);
}

.section--secondary .section__hdr::after {
  background: var(--clr-secondary);
}

.section--accent .section__hdr::after {
  background: var(--clr-accent);
}

.section__num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 300;
  color: var(--clr-border-strong);
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--dur-normal) var(--ease-out-quart);
}

.section.visible .section__num {
  color: var(--clr-primary-muted);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.8vw, 1.4rem);
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.3;
}

/* ================================================================
   TABLE — Clean editorial with animated row entrances
   ================================================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--sp-24) 0;
  font-size: 0.88rem;
}

.data-table thead {
  border-bottom: 2px solid var(--clr-text);
}

.data-table th {
  padding: var(--sp-12) var(--sp-16);
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.data-table td {
  padding: var(--sp-16);
  font-size: 0.88rem;
  border-bottom: 1px solid var(--clr-border);
  vertical-align: top;
  line-height: 1.75;
  transition: background var(--dur-instant) var(--ease-out-quart),
    padding-left var(--dur-fast) var(--ease-out-quart);
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* Row hover: subtle indent + background */
.data-table tbody tr {
  cursor: default;
}

.data-table tbody tr:hover td {
  background: var(--clr-primary-surface);
  padding-left: calc(var(--sp-16) + 4px);
}

.data-table td:first-child {
  font-weight: 600;
  color: var(--clr-primary);
  white-space: normal;
  min-width: 80px;
}

/* ================================================================
   CONTENT — Proper measure, editorial
   ================================================================ */
.content {
  font-size: 0.92rem;
  line-height: 1.85;
  max-width: var(--content-measure);
}

.content p {
  text-indent: 2em;
  margin-bottom: var(--sp-16);
}

.content strong {
  color: var(--clr-primary);
  font-weight: 600;
}

.content .sub-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin: var(--sp-32) 0 var(--sp-12);
  padding-left: var(--sp-16);
  border-left: 2px solid var(--clr-accent);
  text-indent: 0;
  color: var(--clr-text);
  line-height: 1.4;
  transition: border-color var(--dur-fast) var(--ease-out-quart);
}

.content .sub-title:hover {
  border-left-color: var(--clr-primary);
}

/* Strategy blocks — accent left border */
.content .strategy {
  background: var(--clr-surface);
  border-left: 2px solid var(--clr-primary-muted);
  padding: var(--sp-16) var(--sp-24);
  margin: var(--sp-16) 0;
  transition: border-color var(--dur-fast) var(--ease-out-quart),
    transform var(--dur-fast) var(--ease-out-quart);
}

.content .strategy:hover {
  border-left-color: var(--clr-primary);
  transform: translateX(4px);
}

.content .strategy strong {
  display: block;
  margin-bottom: var(--sp-4);
}

/* ================================================================
   MODEL IMAGE
   ================================================================ */
.model-img {
  text-align: center;
  margin: var(--sp-32) 0;
}

.model-img img {
  max-width: 380px;
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
  transition: transform var(--dur-normal) var(--ease-out-quart);
}

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

/* ================================================================
   PHOTO GALLERY — Dynamic grid with hover overlays
   ================================================================ */
.photo-group {
  margin: var(--sp-32) 0;
}

.photo-group__title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--sp-16);
  color: var(--clr-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--sp-12);
}

.photo-group__title::before {
  content: '';
  width: 0;
  height: 2px;
  background: var(--clr-accent);
  flex-shrink: 0;
  transition: width 0.6s var(--ease-out-expo);
}

/* Animate the title accent line when section is visible */
.section.visible .photo-group__title::before {
  width: 32px;
}

.photo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
}

.photo-card {
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}

.photo-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, oklch(15% 0.02 50 / 0.4) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out-quart);
  pointer-events: none;
  border-radius: var(--radius);
}

.photo-card:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

.photo-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform var(--dur-normal) var(--ease-out-quart);
}

.photo-card figcaption {
  padding: var(--sp-8) 0;
  font-size: 0.7rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
  transition: color var(--dur-fast) var(--ease-out-quart);
}

/* ================================================================
   ISSUE / PLAN LISTS — Animated editorial numbers
   ================================================================ */
.issue-list {
  list-style: none;
  counter-reset: issue;
}

.issue-list li {
  position: relative;
  padding: var(--sp-16) 0 var(--sp-16) var(--sp-48);
  border-bottom: 1px solid var(--clr-border);
  font-size: 0.9rem;
  line-height: 1.75;
  transition: transform var(--dur-fast) var(--ease-out-quart);
}

.issue-list li:last-child {
  border-bottom: none;
}

.issue-list li:hover {
  transform: translateX(4px);
}

.issue-list li::before {
  counter-increment: issue;
  content: counter(issue);
  position: absolute;
  left: 0;
  top: var(--sp-16);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--clr-primary-muted);
  line-height: 1;
  transition: color var(--dur-fast) var(--ease-out-quart),
    transform var(--dur-fast) var(--ease-out-quart);
}

.issue-list li:hover::before {
  color: var(--clr-primary);
  transform: scale(1.1);
}

.issue-list li strong {
  display: block;
  margin-bottom: var(--sp-4);
  color: var(--clr-text);
  font-weight: 600;
}

.plan-list li::before {
  color: var(--clr-secondary);
}

.plan-list li:hover::before {
  color: var(--clr-secondary-hover);
}

/* ================================================================
   FAB — Back to top
   ================================================================ */
.fab {
  position: fixed;
  bottom: var(--sp-24);
  right: var(--sp-24);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-text);
  color: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  z-index: var(--z-fab);
  opacity: 0;
  transform: translateY(12px) scale(0.9);
  transition:
    opacity var(--dur-fast) var(--ease-out-quart),
    transform var(--dur-fast) var(--ease-out-quart),
    background var(--dur-instant) var(--ease-out-quart);
  pointer-events: none;
  -webkit-tap-highlight-color: transparent;
}

.fab:hover {
  background: var(--clr-primary);
  transform: translateY(0) scale(1.05);
}

.fab:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
}

.fab.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.fab svg {
  width: 20px;
  height: 20px;
}

/* ================================================================
   FOOTER — Editorial with animated rule
   ================================================================ */
.footer {
  text-align: center;
  padding: var(--sp-48) var(--sp-24);
  margin-top: var(--sp-48);
  border-top: 1px solid var(--clr-border);
  position: relative;
}

.footer p {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
}

.footer__rule {
  width: 0;
  height: 2px;
  background: var(--clr-accent);
  margin: 0 auto var(--sp-24);
  transition: width 1s var(--ease-out-expo);
}

.footer.visible .footer__rule {
  width: 64px;
}

/* ================================================================
   SCROLL REVEAL — Staggered entrances
   ================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--dur-entrance) var(--ease-out-expo),
    transform var(--dur-entrance) var(--ease-out-expo);
  transition-delay: calc(var(--reveal-i, 0) * 60ms);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Child stagger for stats */
.stats.reveal.visible .stat {
  animation: stat-in var(--dur-entrance) var(--ease-out-expo) both;
}

.stats.reveal.visible .stat:nth-child(1) {
  animation-delay: 0ms;
}

.stats.reveal.visible .stat:nth-child(2) {
  animation-delay: 80ms;
}

.stats.reveal.visible .stat:nth-child(3) {
  animation-delay: 160ms;
}

.stats.reveal.visible .stat:nth-child(4) {
  animation-delay: 240ms;
}

.stats.reveal.visible .stat:nth-child(5) {
  animation-delay: 320ms;
}

.stats.reveal.visible .stat:nth-child(6) {
  animation-delay: 400ms;
}

@keyframes stat-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================================================================
   LIGHTBOX — Clean overlay with smooth transitions
   ================================================================ */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: oklch(8% 0.01 50 / 0);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  transition: background var(--dur-normal) var(--ease-out-quart);
}

.lightbox.open {
  display: flex;
  background: oklch(8% 0.01 50 / 0.94);
}

.lightbox img {
  max-width: 94vw;
  max-height: 82vh;
  border-radius: var(--radius);
  object-fit: contain;
  transform: scale(0.95);
  opacity: 0;
  transition:
    transform var(--dur-normal) var(--ease-out-expo),
    opacity var(--dur-normal) var(--ease-out-expo);
}

.lightbox.open img {
  transform: scale(1);
  opacity: 1;
}

.lightbox__caption {
  position: absolute;
  bottom: max(env(safe-area-inset-bottom, 16px), 16px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  color: oklch(90% 0.005 75);
  font-size: 0.8rem;
  text-align: center;
  max-width: 80vw;
  padding: var(--sp-8) var(--sp-24);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out-quart) 200ms,
    transform var(--dur-fast) var(--ease-out-quart) 200ms;
}

.lightbox.open .lightbox__caption {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.lightbox__close {
  position: absolute;
  top: max(env(safe-area-inset-top, 12px), 12px);
  right: var(--sp-16);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: oklch(100% 0 0 / 0.1);
  border: none;
  color: oklch(90% 0 0);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-instant) var(--ease-out-quart),
    transform var(--dur-instant) var(--ease-out-quart);
  -webkit-tap-highlight-color: transparent;
}

.lightbox__close:hover {
  background: oklch(100% 0 0 / 0.2);
  transform: scale(1.1);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: oklch(100% 0 0 / 0.1);
  border: none;
  color: oklch(90% 0 0);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-instant) var(--ease-out-quart),
    transform var(--dur-instant) var(--ease-out-quart);
  -webkit-tap-highlight-color: transparent;
}

.lightbox__nav:hover {
  background: oklch(100% 0 0 / 0.2);
  transform: translateY(-50%) scale(1.1);
}

.lightbox__nav--prev {
  left: var(--sp-12);
}

.lightbox__nav--next {
  right: var(--sp-12);
}

/* ================================================================
   MOBILE (<= 480px)
   ================================================================ */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .hero {
    padding: var(--sp-48) var(--sp-16) var(--sp-32);
    padding-top: calc(var(--sp-48) + env(safe-area-inset-top, 0px));
    min-height: 40vh;
  }

  .hero h1 {
    font-size: 1.4rem;
    max-width: 100%;
  }

  .hero__decor {
    display: none;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-4);
    padding: var(--sp-32) 0 var(--sp-24);
  }

  .stat__num {
    font-size: 1.4rem;
  }

  .stat:nth-child(2n+1)::before {
    display: none;
  }

  .photo-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-12);
  }

  .container {
    padding: 0 var(--sp-16);
  }

  .section {
    padding: var(--sp-32) 0 var(--sp-16);
  }

  .content {
    font-size: 0.88rem;
    line-height: 1.8;
  }

  .content .sub-title {
    font-size: 0.95rem;
  }

  .issue-list li {
    padding: var(--sp-12) 0 var(--sp-12) var(--sp-32);
    font-size: 0.85rem;
  }

  .issue-list li::before {
    font-size: 1.2rem;
  }

  .nav a {
    padding: var(--sp-12) var(--sp-8);
    font-size: 0.72rem;
    min-height: 48px;
  }

  .fab {
    bottom: max(20px, env(safe-area-inset-bottom, 20px));
    right: var(--sp-16);
    width: 42px;
    height: 42px;
  }

  .data-table th,
  .data-table td {
    padding: var(--sp-8) var(--sp-12);
    font-size: 0.82rem;
  }

  .data-table tbody tr:hover td {
    padding-left: var(--sp-12);
  }

  .lightbox img {
    max-width: 96vw;
    max-height: 75vh;
  }

  .lightbox__nav {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }

  .lightbox__nav--prev {
    left: var(--sp-8);
  }

  .lightbox__nav--next {
    right: var(--sp-8);
  }

  .progress-bar {
    height: 2px;
  }
}

/* ================================================================
   TABLET (481px – 768px)
   ================================================================ */
@media (min-width: 481px) and (max-width: 768px) {
  .hero {
    padding: var(--sp-64) var(--sp-24) var(--sp-48);
  }

  .stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-8);
  }

  .photo-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-16);
  }

  .container {
    padding: 0 var(--sp-24);
  }
}

/* ================================================================
   DESKTOP (>= 769px)
   ================================================================ */
@media (min-width: 769px) {
  .hero {
    padding: var(--sp-96) var(--sp-32) var(--sp-64);
    min-height: 55vh;
  }

  .hero h1 {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .container {
    padding: 0 var(--sp-32);
  }

  .nav__inner {
    padding: 0 var(--sp-32);
    gap: var(--sp-4);
  }

  .nav a {
    padding: var(--sp-16);
    font-size: 0.82rem;
  }

  .stats {
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
    padding: var(--sp-64) 0 var(--sp-48);
  }

  .stat {
    padding: var(--sp-24) var(--sp-16);
  }

  .stat__num {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
  }

  .stat__unit {
    font-size: 0.85rem;
  }

  .stat__label {
    font-size: 0.72rem;
  }

  .section {
    padding: var(--sp-64) 0 var(--sp-32);
  }

  .section__hdr {
    gap: var(--sp-24);
    margin-bottom: var(--sp-32);
    padding-bottom: var(--sp-24);
  }

  .content {
    font-size: 1rem;
    line-height: 1.9;
  }

  .content p {
    margin-bottom: var(--sp-24);
  }

  .content .sub-title {
    font-size: 1.1rem;
    margin: var(--sp-48) 0 var(--sp-16);
    padding-left: var(--sp-24);
  }

  .content .strategy {
    padding: var(--sp-24) var(--sp-32);
    margin: var(--sp-24) 0;
  }

  .data-table th {
    padding: var(--sp-16) var(--sp-24);
    font-size: 0.85rem;
  }

  .data-table td {
    padding: var(--sp-16) var(--sp-24);
    font-size: 0.92rem;
  }

  .data-table td:first-child {
    white-space: nowrap;
    min-width: 110px;
  }

  .model-img img {
    max-width: 440px;
  }

  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--sp-16);
  }

  /* Desktop hover effects for photo cards */
  @media (hover: hover) {
    .photo-card:hover img {
      transform: scale(1.05);
    }

    .photo-card:hover::after {
      opacity: 1;
    }

    .photo-card:hover figcaption {
      color: var(--clr-text);
    }
  }

  .photo-card figcaption {
    padding: var(--sp-12) 0;
    font-size: 0.78rem;
  }

  .photo-group {
    margin: var(--sp-48) 0;
  }

  .photo-group__title {
    font-size: 1rem;
    margin-bottom: var(--sp-24);
  }

  .issue-list li {
    padding: var(--sp-24) 0 var(--sp-24) var(--sp-64);
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .issue-list li::before {
    font-size: 2rem;
    top: var(--sp-24);
  }

  .fab {
    bottom: var(--sp-32);
    right: var(--sp-32);
    width: 48px;
    height: 48px;
  }

  .fab svg {
    width: 22px;
    height: 22px;
  }

  .footer {
    padding: var(--sp-64) var(--sp-32);
    margin-top: var(--sp-64);
  }

  .footer p {
    font-size: 0.8rem;
  }

  .lightbox img {
    max-width: 88vw;
    max-height: 86vh;
  }
}

/* ================================================================
   VIEW TOGGLE — Switch between magazine/classic
   ================================================================ */
.view-toggle {
  display: flex;
  justify-content: center;
  gap: var(--sp-4);
  padding: var(--sp-8) var(--sp-16);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: var(--nav-h);
  z-index: calc(var(--z-nav) - 1);
}

.view-toggle__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  padding: var(--sp-4) var(--sp-16);
  border: 1px solid var(--clr-border);
  border-radius: 100px;
  background: transparent;
  color: var(--clr-text-muted);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out-quart),
    color var(--dur-fast) var(--ease-out-quart),
    border-color var(--dur-fast) var(--ease-out-quart);
  -webkit-tap-highlight-color: transparent;
}

.view-toggle__btn:hover {
  border-color: var(--clr-text-secondary);
  color: var(--clr-text);
}

.view-toggle__btn[aria-pressed="true"] {
  background: var(--clr-text);
  color: var(--clr-bg);
  border-color: var(--clr-text);
}

.view-toggle__btn svg {
  flex-shrink: 0;
}

/* ================================================================
   ACCORDION — Collapsible work sub-sections (magazine mode)
   ================================================================ */
.accordion {
  border-bottom: 1px solid var(--clr-border);
}

.accordion:last-child {
  border-bottom: none;
}

.accordion__trigger {
  display: flex;
  align-items: center;
  gap: var(--sp-16);
  width: 100%;
  padding: var(--sp-16) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  color: var(--clr-text);
  -webkit-tap-highlight-color: transparent;
  transition: padding var(--dur-fast) var(--ease-out-quart);
}

.accordion__trigger:hover {
  padding-left: var(--sp-4);
}

.accordion__trigger:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.accordion__num {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--clr-primary-muted);
  flex-shrink: 0;
  width: 2ch;
  text-align: center;
  transition: color var(--dur-fast) var(--ease-out-quart);
}

.accordion__trigger:hover .accordion__num,
.accordion__trigger[aria-expanded="true"] .accordion__num {
  color: var(--clr-primary);
}

.accordion__head {
  flex: 1;
  min-width: 0;
}

.accordion__title {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--clr-text);
}

.accordion__summary {
  display: block;
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  margin-top: 2px;
}

.accordion__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background: var(--clr-text-muted);
  transition: transform var(--dur-normal) var(--ease-out-expo);
}

.accordion__icon::before {
  width: 12px;
  height: 1.5px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion__icon::after {
  width: 1.5px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Rotate the + to - when expanded */
.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

/* Accordion body: hidden by default in magazine mode */
.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.6s var(--ease-out-expo);
}

.accordion[data-expanded] .accordion__body {
  max-height: 4000px;
  transition: max-height 0.8s var(--ease-out-expo);
}

/* Reset content max-width inside accordion so photos can use full width */
.accordion__body .content {
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-8);
}

/* ================================================================
   INLINE PHOTOS — Small grid within accordion body
   ================================================================ */
.inline-photos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--sp-12);
  margin: var(--sp-16) 0 var(--sp-24);
}

.inline-photos .photo-card {
  border-radius: var(--radius-sm);
}

.inline-photos .photo-card img {
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
}

.inline-photos .photo-card figcaption {
  font-size: 0.68rem;
  padding: var(--sp-4) 0;
}

/* ================================================================
   CLASSIC MODE — body.classic reverses magazine changes
   ================================================================ */

/* In classic mode: hide inline photos, show classic photos section */
body.classic .inline-photos {
  display: none;
}

body.classic .classic-only-photos {
  display: block;
}

/* In classic mode: accordion is always expanded, trigger is styled as sub-title */
body.classic .accordion__body {
  max-height: none !important;
  overflow: visible !important;
}

body.classic .accordion__trigger {
  cursor: default;
  padding: 0;
}

body.classic .accordion__trigger:hover {
  padding-left: 0;
}

body.classic .accordion__icon {
  display: none;
}

body.classic .accordion__summary {
  display: none;
}

body.classic .accordion__num {
  font-size: 0.9rem;
}

body.classic .accordion__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  padding-left: var(--sp-16);
  border-left: 2px solid var(--clr-accent);
}

body.classic .accordion {
  border-bottom: none;
}

body.classic .accordion__trigger {
  padding: var(--sp-24) 0 var(--sp-8);
}

/* In classic mode: show nav photos link */
body.classic .nav__photos-link {
  display: flex;
}

/* In magazine mode: hide classic photos, hide nav photos link */
body:not(.classic) .classic-only-photos {
  display: none;
}

body:not(.classic) .nav__photos-link {
  display: none;
}

/* ================================================================
   MOBILE ACCORDION ADJUSTMENTS
   ================================================================ */
@media (max-width: 480px) {
  .accordion__trigger {
    gap: var(--sp-8);
    padding: var(--sp-12) 0;
  }

  .accordion__title {
    font-size: 0.88rem;
  }

  .accordion__summary {
    font-size: 0.72rem;
  }

  .accordion__num {
    font-size: 1rem;
  }

  .inline-photos {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
  }

  .view-toggle {
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-12);
  }

  .view-toggle__btn {
    font-size: 0.68rem;
    padding: var(--sp-4) var(--sp-12);
  }
}

/* ================================================================
   DESKTOP ACCORDION ADJUSTMENTS
   ================================================================ */
@media (min-width: 769px) {
  .accordion__trigger {
    gap: var(--sp-24);
    padding: var(--sp-24) 0;
  }

  .accordion__title {
    font-size: 1.05rem;
  }

  .accordion__summary {
    font-size: 0.82rem;
  }

  .accordion__num {
    font-size: 1.4rem;
    width: 2.5ch;
  }

  .inline-photos {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sp-16);
    margin: var(--sp-24) 0 var(--sp-32);
  }

  .view-toggle__btn {
    font-size: 0.76rem;
    padding: var(--sp-8) var(--sp-24);
  }
}

/* ================================================================
   LARGE DESKTOP (>= 1440px)
   ================================================================ */
@media (min-width: 1440px) {
  .container {
    max-width: 1040px;
  }
}