/* ============================================================
   4-CAS Official Website — Academic International Style
   ============================================================ */

:root {
  /* Primary palette */
  --ivory: #F7F5EF;
  --ivory-2: #EFEBDF;
  --paper: #FBFAF6;
  --ink: #1A2A3A;
  --ink-soft: #3A4A5E;
  --ink-mute: #6B7A8C;
  --ink-faint: #A0ABB8;

  --academic-blue: #1B3A5C;
  --academic-blue-2: #2A4F76;
  --academic-blue-light: #E8EEF5;

  --brass: #B8860B;
  --brass-light: #D4A84B;
  --brass-soft: #F5E9CE;

  --border: #D9D3C3;
  --border-light: #E5DFD1;

  /* Typography */
  --font-serif: 'Noto Serif', 'Noto Serif SC', 'Noto Serif KR', 'Noto Serif JP', Georgia, 'Times New Roman', serif;
  --font-sans: 'Noto Sans', 'Noto Sans SC', 'Noto Sans KR', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --max-w: 1280px;
  --gutter: 32px;
  --nav-h: 72px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--academic-blue);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 500; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 500; }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }

p { margin-bottom: 1em; color: var(--ink-soft); }

a {
  color: var(--academic-blue);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--brass); }

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

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ========== Navigation ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(247, 245, 239, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
}

.nav-logo-block {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--academic-blue);
  letter-spacing: 0.02em;
}

.nav-logo-slogan {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  position: relative;
  padding: 4px 0;
}

.nav-links a.active {
  color: var(--academic-blue);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brass);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: var(--ivory-2);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.lang-btn {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--ink-mute);
  cursor: pointer;
  border-radius: 999px;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.lang-btn.active {
  background: var(--academic-blue);
  color: white;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

/* ========== Page transitions ========== */
.page {
  animation: fadeUp 0.5s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== Hero Section ========== */
.hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(27, 58, 92, 0.85) 0%,
    rgba(27, 58, 92, 0.7) 50%,
    rgba(27, 58, 92, 0.5) 100%);
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.85);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px var(--gutter);
  width: 100%;
}

.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--brass-light);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 1px;
  background: var(--brass-light);
}

.hero-title {
  color: white;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 900px;
}

.hero-title strong {
  font-weight: 600;
  font-style: italic;
  color: var(--brass-light);
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: 48px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 14px 28px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
}

.btn-primary {
  background: var(--brass);
  color: white;
  border-color: var(--brass);
}

.btn-primary:hover {
  background: var(--brass-light);
  border-color: var(--brass-light);
  color: white;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  color: white;
}

.btn-dark {
  background: var(--academic-blue);
  color: white;
  border-color: var(--academic-blue);
}

.btn-dark:hover {
  background: var(--academic-blue-2);
  border-color: var(--academic-blue-2);
  color: white;
}

.btn-outline {
  background: transparent;
  color: var(--academic-blue);
  border-color: var(--academic-blue);
}

.btn-outline:hover {
  background: var(--academic-blue);
  color: white;
}

.hero-meta {
  position: absolute;
  bottom: 40px;
  left: 0;
  right: 0;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ========== Section base ========== */
.section {
  padding: 120px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 72px;
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 20px;
  color: var(--academic-blue);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--ink-mute);
  line-height: 1.75;
}

.section-divider {
  width: 48px;
  height: 2px;
  background: var(--brass);
  margin: 24px auto 0;
}

/* ========== Feature grid (home) ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature-card {
  background: var(--paper);
  padding: 48px 36px;
  text-align: center;
  transition: all 0.3s;
}

.feature-card:hover {
  background: var(--academic-blue-light);
}

.feature-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 400;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--academic-blue);
}

.feature-desc {
  font-size: 0.88rem;
  color: var(--ink-mute);
  line-height: 1.6;
  margin: 0;
}

/* ========== Four dimensions (theory page) ========== */
.dimensions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 96px;
}

.dimension-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 48px 40px;
  position: relative;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dimension-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--brass);
  transition: width 0.3s;
}

.dimension-card:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(27, 58, 92, 0.08);
}

.dimension-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.dimension-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 8px;
}

.dimension-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--academic-blue);
  line-height: 1.3;
}

.dimension-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border: 1.5px solid var(--academic-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--academic-blue);
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
}

.dimension-desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.75;
  margin: 0;
}

.dimension-points {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dimension-points li {
  font-size: 0.88rem;
  color: var(--ink-mute);
  padding: 6px 0 6px 20px;
  position: relative;
}

.dimension-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--brass);
}

/* ========== A-D Grading scale ========== */
.grading-section {
  background: var(--academic-blue);
  color: white;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.grading-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.grading-section .section-title { color: white; }
.grading-section .section-desc { color: rgba(255,255,255,0.7); }
.grading-section .section-eyebrow { color: var(--brass-light); }
.grading-section .section-divider { background: var(--brass); }

.grade-scale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
  z-index: 1;
}

.grade-item {
  background: rgba(255, 255, 255, 0.04);
  padding: 48px 32px;
  text-align: center;
  transition: all 0.3s;
}

.grade-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.grade-letter {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 400;
  color: var(--brass-light);
  line-height: 1;
  margin-bottom: 20px;
}

.grade-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
  margin-bottom: 12px;
}

.grade-desc {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin: 0;
}

/* ========== Matrix visualization ========== */
.matrix-wrap {
  display: flex;
  align-items: stretch;
  gap: 48px;
  margin-top: 64px;
}

.matrix-diagram {
  flex-shrink: 0;
  width: 360px;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}

.matrix-cell {
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
  transition: all 0.3s;
  cursor: default;
}

.matrix-cell:hover {
  background: var(--brass-soft);
}

.matrix-cell-letter {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--academic-blue);
  line-height: 1;
  margin-bottom: 8px;
}

.matrix-cell-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.matrix-desc {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.matrix-desc h3 {
  margin-bottom: 20px;
}

.matrix-desc p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ========== Tools page ========== */
.tools-hero {
  background: var(--ivory-2);
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 80px;
}

.tool-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 80px;
}

.tool-card {
  background: var(--paper);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(27, 58, 92, 0.12);
  border-color: var(--brass);
}

.tool-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid var(--border);
}

.tool-info {
  padding: 32px;
}

.tool-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 12px;
  padding: 4px 10px;
  background: var(--brass-soft);
  border-radius: 2px;
}

.tool-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--academic-blue);
  margin-bottom: 10px;
}

.tool-desc {
  font-size: 0.9rem;
  color: var(--ink-mute);
  line-height: 1.7;
  margin: 0;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feature-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--brass);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brass);
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 2px;
}

.feature-text h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 0.82rem;
  color: var(--ink-mute);
  line-height: 1.6;
  margin: 0;
}

/* Web version coming */
.web-teaser {
  background: var(--academic-blue);
  color: white;
  padding: 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.web-teaser::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(184, 134, 11, 0.15) 0%, transparent 70%);
}

.web-teaser-content {
  position: relative;
  z-index: 1;
}

.web-teaser h2 {
  color: white;
  margin-bottom: 16px;
}

.web-teaser p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  margin: 0 auto 32px;
  font-size: 1rem;
}

.web-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(212, 168, 75, 0.2);
  color: var(--brass-light);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 24px;
  border: 1px solid rgba(212, 168, 75, 0.3);
}

/* ========== Forms page ========== */
.forms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.form-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.25s;
}

.form-card:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 58, 92, 0.06);
}

.form-num {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  color: var(--brass);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.form-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--academic-blue);
  line-height: 1.4;
}

.form-meta {
  font-size: 0.8rem;
  color: var(--ink-mute);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.form-tag {
  padding: 3px 8px;
  background: var(--academic-blue-light);
  color: var(--academic-blue);
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.btn-coming {
  opacity: 0.6;
  cursor: not-allowed;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--ivory-2);
  color: var(--ink-mute);
  border: 1px solid var(--border);
  border-radius: 2px;
  text-decoration: none;
}

/* ========== About page ========== */
.about-hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 80px;
  background: var(--ivory-2);
}

.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 24px;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.about-img {
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
}

.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-img::after {
  content: '';
  position: absolute;
  top: 20px;
  right: 20px;
  bottom: -20px;
  left: -20px;
  border: 2px solid var(--brass);
  z-index: -1;
}

.people-section {
  padding: 120px 0;
}

.people-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.person-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 48px 40px;
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.person-avatar {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--academic-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--academic-blue);
  border: 2px solid var(--brass);
}

.person-info h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.person-role {
  font-size: 0.85rem;
  color: var(--brass);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.person-bio {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
}

.founder-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 56px 48px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.founder-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--academic-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--academic-blue);
  border: 3px solid var(--brass);
  margin-bottom: 24px;
}

.founder-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--academic-blue);
  margin-bottom: 8px;
}

.founder-role {
  font-size: 0.9rem;
  color: var(--brass);
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 28px;
}

.founder-divider {
  width: 40px;
  height: 2px;
  background: var(--brass);
  margin-bottom: 28px;
}

.founder-bio {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.85;
  margin: 0;
  max-width: 480px;
}

.school-section {
  background: var(--academic-blue);
  color: white;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.school-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/class3.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  filter: saturate(0.5);
}

.school-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.school-text h2 { color: white; margin-bottom: 20px; }
.school-text p { color: rgba(255, 255, 255, 0.8); line-height: 1.8; }

.school-badges {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.school-badge {
  padding: 8px 18px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  border-radius: 2px;
  backdrop-filter: blur(4px);
}

.school-img {
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
}

.school-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== Contact page ========== */
.contact-section {
  padding: 120px 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 24px;
}

.contact-info p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 480px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--brass);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brass);
}

.contact-item h4 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 6px;
}

.contact-item p {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 500;
}

.contact-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 48px 40px;
}

.contact-card h3 {
  margin-bottom: 24px;
}

.contact-form-group {
  margin-bottom: 20px;
}

.contact-form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-mute);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.contact-form-group input,
.contact-form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: var(--ivory);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink);
  border-radius: 2px;
  transition: border-color 0.2s;
}

.contact-form-group input:focus,
.contact-form-group textarea:focus {
  outline: none;
  border-color: var(--academic-blue);
}

.contact-form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ========== Footer ========== */
.footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo-text {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--brass-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-logo-icon {
  width: 36px;
  height: 36px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  :root { --gutter: 24px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .dimensions-grid { grid-template-columns: 1fr; }
  .grade-scale { grid-template-columns: repeat(2, 1fr); }
  .forms-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-showcase { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .people-grid { grid-template-columns: 1fr; }
  .school-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .matrix-wrap { flex-direction: column; align-items: center; }
  .matrix-diagram { width: 280px; }
}

@media (max-width: 768px) {
  :root { --gutter: 20px; --nav-h: 64px; }
  .section { padding: 80px 0; }
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .hero-content { padding: 40px var(--gutter); }
  .features-grid { grid-template-columns: 1fr; }
  .grade-scale { grid-template-columns: 1fr 1fr; }
  .forms-grid { grid-template-columns: 1fr; }
  .features-list { grid-template-columns: 1fr; }
  .person-card { flex-direction: column; }
  .web-teaser { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { bottom: 20px; }
  .grading-section { padding: 80px 0; }
  .school-section { padding: 80px 0; }
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--ivory);
  z-index: 999;
  padding: 40px var(--gutter);
  overflow-y: auto;
}

.mobile-nav.open { display: block; }

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-links a {
  display: block;
  padding: 16px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-links a.active {
  color: var(--academic-blue);
}

/* ========== Hero tagline ========== */
.hero-tagline {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 32px;
  padding-left: 20px;
  border-left: 2px solid var(--brass-light);
}

.hero-tagline-main {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  color: white;
  letter-spacing: 0.02em;
  font-style: italic;
}

.hero-tagline-sub {
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.15em;
  font-weight: 400;
}

/* ========== Origins section (theory) ========== */
.origins-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.origin-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 40px 32px;
  position: relative;
  transition: all 0.3s;
}

.origin-card:hover {
  transform: translateY(-3px);
  border-color: var(--brass);
  box-shadow: 0 12px 32px rgba(27, 58, 92, 0.08);
}

.origin-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 20px;
}

.origin-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--academic-blue);
  margin-bottom: 12px;
  line-height: 1.4;
}

.origin-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
}

/* ========== Positioning section ========== */
.positioning-section {
  background: var(--academic-blue);
  color: white;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.positioning-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.positioning-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.positioning-content h2 {
  color: white;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 24px;
  line-height: 1.3;
}

.positioning-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.85;
  margin: 0;
}

/* ========== Pillars section ========== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.pillar-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 44px 36px;
  position: relative;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--brass), var(--academic-blue));
  opacity: 0.8;
}

.pillar-card:hover {
  border-color: var(--brass);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(27, 58, 92, 0.1);
}

.pillar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pillar-num {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--brass);
}

.pillar-short {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--academic-blue);
  border: 1.5px solid var(--academic-blue);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.pillar-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--academic-blue);
  line-height: 1.3;
  margin: 0;
}

.pillar-desc {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin: 0;
}

.pillar-block {
  margin-top: 4px;
}

.pillar-block-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 4px 10px;
  display: inline-block;
  margin-bottom: 10px;
  border-radius: 2px;
}

.pillar-block-label.forward {
  background: var(--academic-blue-light);
  color: var(--academic-blue);
}

.pillar-block-label.warning {
  background: #FBE9E7;
  color: #B23A1F;
}

.pillar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pillar-list li {
  font-size: 0.85rem;
  color: var(--ink-soft);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.pillar-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--brass);
}

.pillar-list.warning-list li::before {
  background: #C44530;
}

/* ========== Risk section ========== */
.risk-section {
  background: var(--academic-blue);
  color: white;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.risk-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
}

.risk-section .section-head {
  position: relative;
  z-index: 1;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
  z-index: 1;
}

.risk-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 28px 20px;
  text-align: center;
  transition: all 0.3s;
  border-radius: 2px;
}

.risk-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--brass-light);
  transform: translateY(-2px);
}

.risk-bars {
  display: flex;
  justify-content: center;
  gap: 3px;
  margin-bottom: 20px;
  height: 48px;
  align-items: flex-end;
}

.risk-bar {
  width: 8px;
  height: 20%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 1px;
}

.risk-bar.active {
  background: var(--brass-light);
  height: auto;
  align-self: stretch;
}

.risk-bar.active:nth-child(1) { height: 20%; }
.risk-bar.active:nth-child(2) { height: 40%; }
.risk-bar.active:nth-child(3) { height: 60%; }
.risk-bar.active:nth-child(4) { height: 80%; }
.risk-bar.active:nth-child(5) { height: 100%; }

.risk-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
  line-height: 1.4;
}

.risk-desc {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
  margin-bottom: 12px;
}

.risk-score {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--brass-light);
  letter-spacing: 0.1em;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== Academic Integrity section ========== */
.integrity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.integrity-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 44px 36px;
  border-radius: 2px;
  transition: all 0.3s;
}

.integrity-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(27, 58, 92, 0.08);
}

.integrity-card.allowed {
  border-top: 4px solid #2D7A4F;
}

.integrity-card.forbidden {
  border-top: 4px solid #B23A1F;
}

.integrity-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.allowed-icon {
  background: #E6F2EC;
  color: #2D7A4F;
}

.forbidden-icon {
  background: #FBE9E7;
  color: #B23A1F;
}

.integrity-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--academic-blue);
}

.integrity-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.integrity-card li {
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding: 8px 0 8px 24px;
  position: relative;
  line-height: 1.6;
  border-bottom: 1px solid var(--border-light);
}

.integrity-card li:last-child {
  border-bottom: none;
}

.integrity-card.allowed li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15px;
  width: 12px;
  height: 6px;
  border-left: 2px solid #2D7A4F;
  border-bottom: 2px solid #2D7A4F;
  transform: rotate(-45deg);
}

.integrity-card.forbidden li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15px;
  width: 12px;
  height: 2px;
  background: #B23A1F;
}

/* ========== Tool stages & dims ========== */
.tool-stages {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.tool-stage {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 32px 28px;
  flex: 1;
  min-width: 220px;
  max-width: 280px;
  text-align: center;
  transition: all 0.3s;
}

.tool-stage:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 58, 92, 0.08);
}

.tool-stage-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 10px;
}

.tool-stage-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--academic-blue);
  margin-bottom: 10px;
  line-height: 1.4;
}

.tool-stage-desc {
  font-size: 0.85rem;
  color: var(--ink-mute);
  line-height: 1.65;
}

.tool-stage-arrow {
  color: var(--brass);
  flex-shrink: 0;
}

.tool-dims {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.tool-dim-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 28px 20px;
  text-align: center;
  transition: all 0.3s;
}

.tool-dim-card:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
}

.tool-dim-score {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 8px;
}

.tool-dim-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--academic-blue);
  margin-bottom: 14px;
}

.tool-dim-bar {
  height: 6px;
  background: var(--ivory-2);
  border-radius: 3px;
  overflow: hidden;
}

.tool-dim-bar-fill {
  height: 100%;
  background: linear-gradient(to right, var(--brass), var(--brass-light));
  border-radius: 3px;
  transition: width 0.6s ease;
}

/* ========== Scope section ========== */
.scope-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}

.scope-text h2 {
  margin-bottom: 16px;
}

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

.scope-list li {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--academic-blue);
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  padding-left: 28px;
}

.scope-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid var(--brass);
  border-radius: 50%;
  background: var(--paper);
}

.scope-list li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--brass);
  border-radius: 50%;
}

.scope-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  background: var(--ivory-2);
  border: 1px solid var(--border);
  border-radius: 2px;
  position: relative;
}

.scope-logo {
  width: 180px;
  height: 180px;
}

/* ========== Pilot forms grid ========== */
.pilot-forms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pilot-form-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.25s;
  text-decoration: none;
  color: inherit;
  border-radius: 2px;
}

.pilot-form-card:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 58, 92, 0.08);
  color: inherit;
}

.pilot-form-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pilot-form-num {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brass);
  letter-spacing: 0.1em;
}

.pilot-form-stage {
  font-size: 0.68rem;
  padding: 2px 8px;
  background: var(--academic-blue-light);
  color: var(--academic-blue);
  border-radius: 2px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.pilot-form-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--academic-blue);
  line-height: 1.45;
  flex: 1;
  font-weight: 600;
}

.pilot-form-bottom {
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}

.pilot-form-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--brass);
  letter-spacing: 0.05em;
}

.pilot-form-card:hover .pilot-form-download {
  color: var(--brass-light);
}

/* ========== Formal forms ========== */
.formal-forms-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.formal-form-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: center;
  transition: all 0.25s;
  text-decoration: none;
  color: inherit;
  border-radius: 2px;
  position: relative;
}

.formal-form-card:hover {
  border-color: var(--brass);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(27, 58, 92, 0.08);
  color: inherit;
}

.formal-form-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--brass);
  line-height: 1;
}

.formal-form-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--academic-blue);
  line-height: 1.45;
  flex: 1;
  font-weight: 600;
}

.formal-form-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--brass);
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  letter-spacing: 0.05em;
}

/* ========== Research / PPT cards ========== */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.research-card {
  background: var(--paper);
  border: 1px solid var(--border);
  padding: 32px 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: all 0.25s;
  text-decoration: none;
  color: inherit;
  border-radius: 2px;
}

.research-card:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(27, 58, 92, 0.08);
  color: inherit;
}

.research-card-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--academic-blue-light);
  color: var(--academic-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  transition: all 0.25s;
}

.research-card:hover .research-card-icon {
  background: var(--brass-soft);
  color: var(--brass);
}

.research-card-body {
  flex: 1;
  min-width: 0;
}

.research-lang {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--brass);
  padding: 3px 8px;
  background: var(--brass-soft);
  border-radius: 2px;
  margin-bottom: 10px;
}

.research-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--academic-blue);
  line-height: 1.45;
  margin-bottom: 6px;
  font-weight: 600;
}

.research-desc {
  font-size: 0.82rem;
  color: var(--ink-mute);
  line-height: 1.6;
  margin: 0;
}

.research-download {
  flex-shrink: 0;
  color: var(--brass);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  transition: all 0.25s;
  align-self: center;
}

.research-card:hover .research-download {
  background: var(--brass);
  color: white;
  border-color: var(--brass);
}

/* ========== Vision section (about) ========== */
.vision-wrap {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: center;
}

.vision-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--ivory-2);
  border: 1px solid var(--border);
  border-radius: 2px;
}

.vision-logo {
  width: 160px;
  height: 160px;
}

.vision-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.vision-point {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--academic-blue);
}

.vision-point-bullet {
  width: 10px;
  height: 10px;
  background: var(--brass);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ========== Partner banner ========== */
.partner-banner {
  background: var(--academic-blue);
  color: white;
  padding: 64px;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}

.partner-banner::before {
  content: '';
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(184, 134, 11, 0.12) 0%, transparent 70%);
}

.partner-banner h2 {
  color: white;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

/* ========== Footer tagline ========== */
.footer-tagline-main {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  font-style: italic;
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}

/* ========== Responsive additions ========== */
@media (max-width: 1024px) {
  .origins-grid { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .risk-grid { grid-template-columns: repeat(3, 1fr); }
  .integrity-grid { grid-template-columns: 1fr; }
  .tool-dims { grid-template-columns: repeat(2, 1fr); }
  .scope-wrap { grid-template-columns: 1fr; }
  .vision-wrap { grid-template-columns: 1fr; }
  .pilot-forms-grid { grid-template-columns: repeat(2, 1fr); }
  .formal-forms-grid { grid-template-columns: repeat(3, 1fr); }
  .research-grid { grid-template-columns: 1fr; }
  .partner-banner { flex-direction: column; text-align: center; padding: 48px 32px; }
  .tool-stages { flex-direction: column; }
  .tool-stage-arrow { transform: rotate(90deg); }
}

@media (max-width: 768px) {
  .risk-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-dims { grid-template-columns: 1fr 1fr; }
  .pilot-forms-grid { grid-template-columns: 1fr 1fr; }
  .formal-forms-grid { grid-template-columns: 1fr 1fr; }
  .scope-logo { width: 120px; height: 120px; }
  .vision-logo { width: 120px; height: 120px; }
  .partner-banner { padding: 40px 24px; }
  .hero-tagline { margin-bottom: 24px; }
}