/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ===== CSS VARIABLES ===== */
:root {
  --bg: #faf8f4;
  --bg-2: #f2ede3;
  --bg-dark: #0d1b2a;
  --bg-dark-2: #142030;
  --navy: #0d1b2a;
  --navy-2: #1a2f45;
  --gold: #c4973f;
  --gold-2: #d4aa52;
  --gold-light: #e8c87a;
  --rust: #b04530;
  --sage: #4a7c59;
  --text: #1a2535;
  --text-2: #4a5870;
  --text-3: #8a9ab0;
  --text-inv: #faf8f4;
  --border: rgba(13,27,42,0.10);
  --border-inv: rgba(250,248,244,0.10);

  /* Grade accent colors */
  --grade-9:  #2d6a6a;
  --grade-10: #7c4d1e;
  --grade-11: #1e3a5f;
  --grade-12: #8a5a18;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Lexend', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --shadow-sm: 0 1px 8px rgba(13,27,42,0.06);
  --shadow:    0 4px 24px rgba(13,27,42,0.10);
  --shadow-lg: 0 8px 48px rgba(13,27,42,0.15);
  --shadow-xl: 0 20px 80px rgba(13,27,42,0.20);

  --radius:    6px;
  --radius-lg: 14px;
  --container: 1200px;
}

/* ===== TYPOGRAPHY SCALE ===== */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  color: var(--navy);
}

/* ===== CONTAINER ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== SECTION LABELS ===== */
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  display: block;
}
.section-tag.on-dark { color: var(--gold-2); }
.section-header { margin-bottom: 60px; }
.section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600;
  margin-bottom: 16px;
}
.section-title.on-dark { color: var(--text-inv); }
.section-sub {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 520px;
  line-height: 1.75;
}
.section-sub.on-dark { color: rgba(250,248,244,0.58); }

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.10s; }
.delay-2 { transition-delay: 0.20s; }
.delay-3 { transition-delay: 0.30s; }
.delay-4 { transition-delay: 0.40s; }

/* ===== KEYFRAMES ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulseGold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(196,151,63,0.4); }
  50%       { box-shadow: 0 0 0 14px rgba(196,151,63,0); }
}
@keyframes nodePop {
  0%   { transform: scale(0.6); opacity: 0; }
  70%  { transform: scale(1.08); }
  100% { transform: scale(1); opacity: 1; }
}

/* ===== NAV ===== */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
}
#main-nav.scrolled {
  background: rgba(250,248,244,0.95);
  box-shadow: var(--shadow);
  padding: 13px 0;
  backdrop-filter: blur(10px);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  gap: 36px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-compass {
  width: 32px;
  height: 32px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--gold);
  font-family: var(--font-mono);
  font-weight: 500;
}
.logo-name {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.logo-name em {
  font-style: normal;
  color: var(--gold);
}
.nav-links {
  display: flex;
  gap: 28px;
  flex: 1;
  margin-left: 8px;
}
.nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-2);
  position: relative;
  transition: color 0.2s;
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1.5px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  margin-left: auto;
  background: var(--navy);
  color: var(--text-inv);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background 0.2s, transform 0.2s;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--gold); transform: translateY(-1px); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 130px 0 90px;
  position: relative;
  overflow: hidden;
}
/* Dot-grid texture */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(13,27,42,0.055) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
/* Warm radial glow */
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 75% 50%, rgba(196,151,63,0.09) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 5%  80%, rgba(45,106,106,0.06) 0%, transparent 65%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 72px;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
  animation: fadeIn 0.8s ease both;
}
.hero-headline {
  font-size: clamp(3rem, 5.2vw, 5.2rem);
  font-weight: 600;
  line-height: 1.06;
  color: var(--navy);
  margin-bottom: 26px;
  animation: fadeUp 0.9s ease both 0.1s;
}
.hero-headline em {
  font-style: italic;
  color: var(--gold);
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.78;
  max-width: 440px;
  margin-bottom: 44px;
  animation: fadeUp 0.9s ease both 0.2s;
}
.picker-wrapper { animation: fadeUp 0.9s ease both 0.3s; }
.picker-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 14px;
}
.grade-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.grade-btn {
  padding: 11px 22px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--text-2);
  background: white;
  cursor: pointer;
  transition: all 0.22s;
}
.grade-btn:hover {
  border-color: var(--gold);
  color: var(--navy);
  background: rgba(196,151,63,0.07);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ===== PATH GRAPHIC (hero right) ===== */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: fadeUp 1s ease both 0.25s;
}
.path-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px 36px;
  position: relative;
  overflow: hidden;
}
.path-card::before {
  content: 'YOUR PATH';
  position: absolute;
  top: 18px; right: 24px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--text-3);
}
.path-track {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
/* Dotted vertical connector */
.path-track::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 36px;
  bottom: 36px;
  width: 1.5px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(13,27,42,0.15) 0, rgba(13,27,42,0.15) 5px,
    transparent 5px, transparent 11px
  );
}
.path-stop {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 13px 0;
  position: relative;
  z-index: 1;
  cursor: default;
  transition: transform 0.2s;
}
.path-stop:hover { transform: translateX(4px); }
.stop-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: white;
  border: 2px solid rgba(13,27,42,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-3);
  flex-shrink: 0;
  transition: all 0.3s;
}
.path-stop:hover .stop-num {
  border-color: var(--gold);
  color: var(--navy);
  box-shadow: 0 0 0 5px rgba(196,151,63,0.10);
}
.stop-num.destination {
  background: var(--gold);
  border-color: var(--gold);
  color: white;
  font-size: 1.1rem;
  animation: pulseGold 2.5s ease-in-out infinite;
}
.stop-info { display: flex; flex-direction: column; gap: 2px; }
.stop-grade {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--text-3);
  text-transform: uppercase;
}
.stop-theme {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
}
.path-destination {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 13px 0 0;
  position: relative;
  z-index: 1;
}

/* Stat strip */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.hero-stat {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  text-align: center;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-lbl {
  font-size: 0.72rem;
  color: var(--text-3);
  font-weight: 300;
}

/* ===== ROADMAP SECTION ===== */
.section-roadmap {
  padding: 104px 0;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.section-roadmap::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(196,151,63,0.055) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
  z-index: 1;
}
.roadmap-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  transition: transform 0.3s, box-shadow 0.3s;
}
.roadmap-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-xl);
}
.rc-top {
  padding: 26px 24px 22px;
  color: white;
  position: relative;
}
.rc-top.g9  { background: var(--grade-9); }
.rc-top.g10 { background: var(--grade-10); }
.rc-top.g11 { background: var(--grade-11); }
.rc-top.g12 { background: var(--grade-12); }
.rc-grade-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 8px;
}
.rc-theme {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  color: white;
  line-height: 1.2;
}
.rc-badge {
  display: inline-block;
  margin-top: 10px;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(4px);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.9);
}
.rc-list {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rc-list li {
  font-size: 0.85rem;
  color: var(--text-2);
  padding-left: 16px;
  position: relative;
  line-height: 1.45;
}
.rc-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.7rem;
}
.rc-link {
  display: block;
  padding: 0 24px 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
}
.roadmap-card:hover .rc-link { text-decoration: underline; }
.rc-articles {
  padding: 0 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 14px;
}
.rc-article-link {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gold);
  text-decoration: none;
  transition: opacity 0.2s;
}
.rc-article-link:hover { text-decoration: underline; opacity: 0.85; }

/* ===== TOPICS SECTION ===== */
.section-topics {
  padding: 104px 0;
  background: var(--bg-2);
}
.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.topic-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 32px;
  display: block;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.topic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(196,151,63,0.35);
}
.topic-icon {
  font-size: 2rem;
  margin-bottom: 18px;
  display: block;
}
.topic-card h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.topic-card p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.72;
  margin-bottom: 22px;
}
.topic-arrow {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
}
.topic-card:hover .topic-arrow { text-decoration: underline; }
.topic-articles {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.topic-articles a {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gold);
  text-decoration: none;
  transition: opacity 0.2s;
}
.topic-articles a:hover { text-decoration: underline; opacity: 0.85; }

/* ===== AUDIENCE PATHS ===== */
.section-paths {
  padding: 104px 0;
  background: var(--bg);
}
.paths-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.audience-card {
  padding: 54px 52px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.audience-card.for-student {
  background: var(--navy);
}
.audience-card.for-parent {
  background: var(--bg-2);
  border: 2px solid rgba(13,27,42,0.08);
}
.audience-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
  display: block;
}
.audience-title {
  font-size: clamp(1.7rem, 2.5vw, 2.3rem);
  font-weight: 600;
  margin-bottom: 16px;
}
.for-student .audience-title { color: white; }
.for-parent .audience-title  { color: var(--navy); }
.audience-card p {
  line-height: 1.75;
  margin-bottom: 30px;
  font-size: 0.95rem;
}
.for-student p { color: rgba(250,248,244,0.68); }
.for-parent  p { color: var(--text-2); }
.audience-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 38px;
}
.audience-features li {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.for-student .audience-features li { color: rgba(250,248,244,0.82); }
.for-parent  .audience-features li { color: var(--text-2); }
.audience-features li::before {
  content: '✓';
  color: var(--gold);
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}
.audience-cta {
  display: inline-block;
  padding: 13px 30px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}
.audience-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.cta-student { background: var(--gold); color: white; }
.cta-parent  { background: var(--navy); color: white; }

/* ===== FEATURED GUIDES ===== */
.section-guides {
  padding: 104px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.guides-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.guide-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: block;
  transition: transform 0.25s, box-shadow 0.25s;
}
.guide-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.guide-topic-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  display: block;
}
.guide-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.3;
}
.guide-card p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.72;
  margin-bottom: 22px;
}
.guide-meta {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-3);
  letter-spacing: 0.05em;
}

/* ===== NEWSLETTER ===== */
.section-newsletter {
  padding: 80px 0;
  background: var(--bg-dark);
}
.nl-box {
  background: var(--bg-dark-2);
  border: 1px solid var(--border-inv);
  border-radius: var(--radius-lg);
  padding: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.nl-box::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(196,151,63,0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.nl-text { position: relative; z-index: 1; }
.nl-text h2 {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  color: white;
  margin-bottom: 14px;
}
.nl-text p {
  font-size: 0.95rem;
  color: rgba(250,248,244,0.6);
  line-height: 1.75;
}
.nl-form-wrap { position: relative; z-index: 1; }
.nl-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.nl-input {
  padding: 14px 18px;
  border: 1.5px solid rgba(250,248,244,0.12);
  border-radius: var(--radius);
  background: rgba(250,248,244,0.06);
  color: white;
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s;
}
.nl-input::placeholder { color: rgba(250,248,244,0.28); }
.nl-input:focus { outline: none; border-color: var(--gold); background: rgba(250,248,244,0.09); }
.nl-btn {
  padding: 14px;
  background: var(--gold);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.nl-btn:hover { background: var(--gold-2); transform: translateY(-1px); }
.nl-feedback {
  font-size: 0.85rem;
  min-height: 20px;
  margin-top: 4px;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(250,248,244,0.07);
  padding: 72px 0 36px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 52px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo .logo-compass {
  border-color: rgba(196,151,63,0.5);
  color: var(--gold);
}
.footer-logo .logo-name { color: var(--text-inv); font-size: 1rem; }
.footer-brand p {
  font-size: 0.875rem;
  color: rgba(250,248,244,0.45);
  line-height: 1.72;
  max-width: 250px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a {
  font-size: 0.855rem;
  color: rgba(250,248,244,0.50);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--text-inv); }
.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(250,248,244,0.07);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(250,248,244,0.28);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner        { gap: 48px; }
  .roadmap-grid      { grid-template-columns: repeat(2, 1fr); }
  .topics-grid       { grid-template-columns: repeat(2, 1fr); }
  .footer-inner      { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .container         { padding: 0 24px; }
  .hero-inner        { grid-template-columns: 1fr; }
  .hero-visual       { display: none; }
  .roadmap-grid      { grid-template-columns: 1fr; }
  .topics-grid       { grid-template-columns: 1fr; }
  .paths-grid        { grid-template-columns: 1fr; }
  .guides-grid       { grid-template-columns: 1fr; }
  .nl-box            { grid-template-columns: 1fr; gap: 36px; padding: 40px; }
  .nav-links         { display: none; }
  .audience-card     { padding: 36px 30px; }
}
@media (max-width: 480px) {
  .footer-inner      { grid-template-columns: 1fr; }
  .grade-btns        { flex-direction: column; }
  .grade-btn         { text-align: center; }
  .hero-stats        { grid-template-columns: 1fr; }
}