/* ============================================================
   CIVIC & HUMAN - STYLESHEET
   Societies, Institutions, and Human Wellbeing
   Academic & Editorial Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400;1,8..60,600&display=swap');

:root {
  /* Color Palette */
  --color-forest: #25443A;
  --color-clay: #A6533F;
  --color-harvest: #D8A84E;
  --color-sand: #F1E6D2;
  --color-ivory: #FBF8F1;
  --color-mist: #E6ECE7;
  --color-graphite: #292E2C;
  --color-muted-olive: #747C70;
  --color-white: #FFFFFF;

  /* Transparent Tints */
  --color-forest-90: rgba(37, 68, 58, 0.90);
  --color-forest-80: rgba(37, 68, 58, 0.80);
  --color-forest-12: rgba(37, 68, 58, 0.12);
  --color-forest-06: rgba(37, 68, 58, 0.06);
  --color-clay-15: rgba(166, 83, 63, 0.15);
  --color-harvest-20: rgba(216, 168, 78, 0.20);
  --color-sand-50: rgba(241, 230, 210, 0.50);

  /* Typography */
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Spacing System */
  --space-2xs: 0.25rem;  /* 4px */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 0.75rem;   /* 12px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4.5rem;   /* 72px */
  --space-4xl: 6rem;     /* 96px */

  /* Borders & Radius */
  --border-subtle: 1px solid var(--color-forest-12);
  --border-medium: 1px solid rgba(37, 68, 58, 0.22);
  --border-clay: 1px solid rgba(166, 83, 63, 0.35);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-subtle: 0 2px 8px rgba(37, 68, 58, 0.04);
  --shadow-card: 0 4px 16px rgba(37, 68, 58, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(37, 68, 58, 0.10);
  --shadow-dropdown: 0 12px 32px rgba(37, 68, 58, 0.14);

  /* Container & Layout */
  --container-max-width: 1180px;
  --container-padding: 1.5rem;

  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-graphite);
  background-color: var(--color-ivory);
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background-color: var(--color-forest);
  color: var(--color-sand);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-harvest);
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--color-clay);
  outline-offset: 3px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-forest);
  line-height: 1.25;
  margin-top: 0;
  font-weight: 600;
}

p {
  margin-top: 0;
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-clay);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-forest);
}

/* Eyebrows & Section Headers */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-clay);
  margin-bottom: 0.75rem;
}

.eyebrow-harvest {
  color: var(--color-harvest);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.section-header {
  margin-bottom: var(--space-2xl);
  max-width: 760px;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.08rem;
  color: var(--color-muted-olive);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 600;
  padding: 0.75rem 1.45rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-forest);
  color: var(--color-sand);
  border-color: var(--color-forest);
}

.btn-primary:hover {
  background-color: #1a322b;
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 68, 58, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-forest);
  border-color: var(--color-forest);
}

.btn-secondary:hover {
  background-color: var(--color-sand);
  color: var(--color-forest);
}

.btn-cta {
  background-color: var(--color-clay);
  color: var(--color-white);
  border-color: var(--color-clay);
  padding: 0.65rem 1.25rem;
  font-size: 0.88rem;
}

.btn-cta:hover {
  background-color: #8c4230;
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(166, 83, 63, 0.25);
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  background-color: var(--color-ivory);
  color: var(--color-forest);
  border: 1px solid var(--color-forest-12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-copy:hover {
  background-color: var(--color-sand);
  border-color: var(--color-forest);
}

.btn-copy.copied {
  background-color: var(--color-forest);
  color: var(--color-sand);
  border-color: var(--color-forest);
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(251, 248, 241, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--border-subtle);
  z-index: 900;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.header-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo-img {
  height: 42px;
  width: auto;
  display: block;
}

/* Desktop Nav */
.header-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-forest);
  text-decoration: none;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link:hover {
  color: var(--color-clay);
}

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

.header-cta-wrap {
  display: flex;
  align-items: center;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-forest-12);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-forest);
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  transition: background-color var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background-color: var(--color-sand);
}

.hamburger-icon {
  width: 22px;
  height: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-forest);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Mobile Menu Active State */
.mobile-nav-toggle[aria-expanded="true"] .hamburger-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-nav-toggle[aria-expanded="true"] .hamburger-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero-section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  background-color: var(--color-ivory);
  position: relative;
  overflow: hidden;
  border-bottom: var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-title {
  font-size: clamp(2.3rem, 4.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--color-forest);
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.hero-title .highlight {
  color: var(--color-clay);
  font-style: italic;
  font-weight: 600;
  display: inline;
}

.hero-desc {
  font-size: 1.14rem;
  line-height: 1.65;
  color: var(--color-graphite);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2rem;
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-muted-olive);
  font-weight: 500;
}

.hero-note-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-harvest);
  display: inline-block;
}

/* HERO VISUAL: Layers of society */
.hero-visual-panel {
  background: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.hero-visual-panel::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 2rem;
  right: 2rem;
  height: 6px;
  background-color: var(--color-sand);
  border-radius: 6px 6px 0 0;
  z-index: 0;
}

.visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: var(--border-subtle);
}

.visual-header-title {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-forest);
}

.visual-mark-icon {
  width: 24px;
  height: 24px;
  display: block;
  opacity: 0.85;
}

.layers-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

/* Connecting vertical line */
.layers-list::before {
  content: "";
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 1.25rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-forest), var(--color-clay), var(--color-harvest), var(--color-muted-olive));
  z-index: 1;
}

.layer-card {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1rem 1.15rem;
  background: var(--color-ivory);
  border: 1px solid var(--color-forest-06);
  border-radius: var(--radius-md);
  position: relative;
  z-index: 2;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.layer-card:hover {
  background: var(--color-sand-50);
  border-color: var(--color-forest-12);
  transform: translateX(4px);
}

.layer-num {
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-forest);
  background: var(--color-sand);
  border: 1px solid var(--color-forest-12);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.layer-card:nth-child(1) .layer-num { color: var(--color-forest); }
.layer-card:nth-child(2) .layer-num { color: var(--color-clay); }
.layer-card:nth-child(3) .layer-num { color: var(--color-forest); }
.layer-card:nth-child(4) .layer-num { color: #8c4230; }

.layer-body {
  flex: 1;
}

.layer-name {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-forest);
  margin-bottom: 0.2rem;
}

.layer-desc {
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--color-graphite);
  margin: 0;
}

.visual-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted-olive);
}

/* ============================================================
   INDICATORS STRIP
   ============================================================ */

.indicators-section {
  background-color: var(--color-sand);
  border-bottom: var(--border-subtle);
  padding: var(--space-xl) 0;
}

.indicators-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.indicator-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.75rem 1rem;
  position: relative;
}

.indicator-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background-color: var(--color-forest-12);
}

.indicator-num {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-forest);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.indicator-label {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted-olive);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

/* ============================================================
   PERSPECTIVES SECTION
   ============================================================ */

.section-perspectives {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--color-ivory);
}

.perspectives-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.perspective-card {
  background-color: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.perspective-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: transparent;
  transition: background-color var(--transition-fast);
}

.perspective-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(37, 68, 58, 0.25);
}

.perspective-card:hover::before {
  background-color: var(--color-clay);
}

.perspective-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.perspective-number {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-clay);
  background-color: var(--color-clay-15);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

.perspective-title {
  font-size: 1.45rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--color-forest);
}

.perspective-text {
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--color-graphite);
  margin-bottom: 1.5rem;
  flex: 1;
}

.perspective-topics {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: var(--border-subtle);
}

.topics-title {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted-olive);
  margin-bottom: 0.6rem;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.topic-tag {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-forest);
  background-color: var(--color-mist);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(37, 68, 58, 0.08);
}

/* ============================================================
   PROCESS SECTION
   ============================================================ */

.section-process {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--color-mist);
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
}

.process-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-3xl);
  align-items: flex-start;
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.step-card {
  background-color: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.step-card:hover {
  transform: translateX(4px);
  border-color: var(--color-forest);
}

.step-badge {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-sand);
  background-color: var(--color-forest);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: 0.35rem;
}

.step-desc {
  font-size: 0.94rem;
  color: var(--color-graphite);
  line-height: 1.55;
  margin: 0;
}

/* Process Checklist Aside */
.checklist-card {
  background-color: var(--color-sand);
  border: 1px solid rgba(37, 68, 58, 0.16);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-subtle);
}

.checklist-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(37, 68, 58, 0.15);
}

.checklist-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-graphite);
  line-height: 1.45;
}

.check-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-forest);
  color: var(--color-sand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 11px;
  font-weight: 700;
}

/* ============================================================
   RESEARCHERS SECTION (ACADEMIC REFERENCES)
   ============================================================ */

.section-researchers {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--color-ivory);
}

.researchers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.researcher-card {
  background-color: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-subtle);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
  position: relative;
}

.researcher-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(37, 68, 58, 0.25);
}

.researcher-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.researcher-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--color-forest);
  color: var(--color-sand);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid var(--color-sand);
  box-shadow: 0 2px 6px rgba(37, 68, 58, 0.15);
}

.researcher-meta {
  flex: 1;
}

.researcher-country {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-clay);
  display: block;
}

.researcher-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-forest);
  margin: 0.15rem 0 0.1rem 0;
  line-height: 1.3;
}

.researcher-affiliation {
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: var(--border-subtle);
}

.affiliation-inst {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-forest);
  margin: 0;
}

.affiliation-dept {
  font-size: 0.82rem;
  color: var(--color-muted-olive);
  margin: 0.15rem 0 0 0;
  line-height: 1.4;
}

.researcher-role {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-forest);
  background-color: var(--color-mist);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  margin-top: 0.4rem;
}

.researcher-summary {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--color-graphite);
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Researcher Alias Box (Profiles 1, 2, 3 only) */
.alias-box {
  background-color: var(--color-ivory);
  border: 1px dashed var(--color-forest-12);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-top: auto;
}

.alias-label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted-olive);
  display: block;
  margin-bottom: 0.35rem;
}

.alias-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.alias-text {
  font-family: monospace;
  font-size: 0.82rem;
  color: var(--color-forest);
  word-break: break-all;
  font-weight: 600;
}

/* Tags Box for profiles 4, 5, 6 */
.researcher-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.research-tag {
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--color-forest);
  background-color: var(--color-sand);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

/* ============================================================
   READING SECTION (GUIDED READING)
   ============================================================ */

.section-reading {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--color-sand-50);
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
}

.reading-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.reading-card {
  background-color: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-subtle);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
}

.reading-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(166, 83, 63, 0.35);
}

.reading-category {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-clay);
  margin-bottom: 0.85rem;
  display: inline-block;
}

.reading-title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-forest);
  margin-bottom: 0.85rem;
}

.reading-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-graphite);
  margin: 0;
  flex: 1;
}

/* ============================================================
   ABOUT SECTION & PRINCIPLES
   ============================================================ */

.section-about {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--color-ivory);
}

.about-intro {
  max-width: 820px;
  margin-bottom: var(--space-3xl);
}

.about-p-main {
  font-size: 1.15rem;
  line-height: 1.68;
  color: var(--color-forest);
  font-weight: 500;
  margin-bottom: 1rem;
}

.about-p-sub {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--color-muted-olive);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-bottom: var(--space-3xl);
}

.principle-card {
  background-color: var(--color-white);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.principle-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-forest);
}

.principle-num {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-clay);
  margin-bottom: 0.65rem;
}

.principle-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: 0.65rem;
}

.principle-desc {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-graphite);
  margin: 0;
}

/* Reference Notice Box */
.reference-notice-box {
  background-color: var(--color-sand);
  border: 1px solid rgba(166, 83, 63, 0.35);
  border-left: 5px solid var(--color-clay);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.notice-title {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-clay);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.notice-text {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-graphite);
  margin: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  background-color: var(--color-forest);
  color: var(--color-sand);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-top: 1px solid rgba(241, 230, 210, 0.15);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(241, 230, 210, 0.12);
}

.footer-brand {
  max-width: 360px;
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.footer-mark {
  width: 32px;
  height: 32px;
  display: block;
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-sand);
  letter-spacing: 0.04em;
}

.footer-tagline {
  font-size: 0.88rem;
  color: rgba(241, 230, 210, 0.75);
  margin: 0;
}

.footer-links-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-title {
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-harvest);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  color: var(--color-sand);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-harvest);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.84rem;
  color: rgba(241, 230, 210, 0.65);
}

.back-to-top {
  color: var(--color-sand);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.84rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.back-to-top:hover {
  color: var(--color-harvest);
}

/* ============================================================
   PROGRESSIVE ENHANCEMENT & REVEAL ANIMATIONS
   ============================================================ */

/* By default (before JS or if JS fails), elements are visible */
.reveal {
  opacity: 1;
  transform: none;
}

/* Only when JavaScript runs and adds 'js-enabled' class to html */
html.js-enabled .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

html.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  html.js-enabled .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   RESPONSIVE STYLES
   ============================================================ */

/* Tablet & Smaller (<= 992px) */
@media screen and (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .process-layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .researchers-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .reading-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .indicators-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1rem;
  }

  .indicator-item:nth-child(2)::after {
    display: none;
  }
}

/* Mobile Devices (<= 768px) */
@media screen and (max-width: 768px) {
  :root {
    --container-padding: 1.15rem;
  }

  .header-inner {
    height: 64px;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background-color: var(--color-ivory);
    border-bottom: 2px solid var(--color-forest-12);
    box-shadow: var(--shadow-dropdown);
    padding: 1.5rem var(--container-padding) 2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 1.25rem;
  }

  .nav-link {
    font-size: 1.1rem;
    display: block;
    width: 100%;
  }

  .header-cta-wrap {
    width: 100%;
    padding-top: 1rem;
    border-top: var(--border-subtle);
  }

  .header-cta-wrap .btn {
    width: 100%;
  }

  .perspectives-grid {
    grid-template-columns: 1fr;
  }

  .researchers-grid {
    grid-template-columns: 1fr;
  }

  .reading-grid {
    grid-template-columns: 1fr;
  }

  .indicators-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .indicator-item::after {
    display: none !important;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.75rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}