/* ============================================================
   AI FUTURE DESIGN SYSTEM — Shared CSS Tokens & Components
   ============================================================ */

/* ── Color Tokens ─────────────────────────────────────────── */
:root {
  --af-navy:       #073E77;
  --af-deep-navy:  #001B3F;
  --af-yellow:     #FECE00;
  --af-green:      #D9DA26;
  --af-blue:       #2563FF;
  --af-purple:     #6D4AFF;
  --af-cream:      #F5EDC4;
  --af-white:      #FAFAF6;
  --af-slate:      #2E3440;
  --af-gray:       #D9D9D9;
  --af-success:    #22C55E;
  --af-warning:    #F59E0B;
  --af-error:      #EF4444;
  --af-text:       #1A2335;
  --af-muted:      #64748B;
  --af-border:     #E2E8F0;

  /* ── Typography ─────────────────────────────────────────── */
  --font-sans:  'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-brand: 'Cinzel', 'Libre Baskerville', 'Times New Roman', serif;

  /* ── Spacing ────────────────────────────────────────────── */
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --sp-4xl: 6rem;

  /* ── Radii ──────────────────────────────────────────────── */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-2xl: 28px;
  --r-full: 9999px;

  /* ── Shadows ────────────────────────────────────────────── */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.08);
  --shadow-xl:  0 24px 64px rgba(0,0,0,.14), 0 8px 20px rgba(0,0,0,.08);
  --shadow-navy: 0 8px 32px rgba(7,62,119,.18);

  /* ── Transitions ────────────────────────────────────────── */
  --t-fast:   150ms ease;
  --t-normal: 280ms ease;
  --t-slow:   420ms ease;

  --max-w: 1200px;
  --max-w-sm: 900px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  color: var(--af-text);
  background: var(--af-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
ul { list-style: none; }

/* ── Utilities ──────────────────────────────────────────────── */
.container { width: min(100%, var(--max-w)); margin-inline: auto; padding-inline: var(--sp-xl); }
.container--sm { width: min(100%, var(--max-w-sm)); margin-inline: auto; padding-inline: var(--sp-xl); }
.section { padding-block: var(--sp-4xl); }
.section--sm { padding-block: var(--sp-2xl); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-normal), background var(--t-fast), color var(--t-fast);
  white-space: nowrap;
  text-decoration: none;
  max-width: 100%;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--af-blue); outline-offset: 3px; }

.btn--primary {
  background: var(--af-yellow);
  color: var(--af-deep-navy);
  box-shadow: 0 4px 14px rgba(254,206,0,.35);
}
.btn--primary:hover { background: #ffe033; box-shadow: 0 6px 20px rgba(254,206,0,.45); }

.btn--navy {
  background: var(--af-navy);
  color: #fff;
  box-shadow: var(--shadow-navy);
}
.btn--navy:hover { background: #0a4e96; }

.btn--outline {
  background: transparent;
  border-color: var(--af-navy);
  color: var(--af-navy);
}
.btn--outline:hover { background: var(--af-navy); color: #fff; }

.btn--outline-white {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.btn--outline-white:hover { background: rgba(255,255,255,.12); border-color: #fff; }

.btn--ghost {
  background: transparent;
  color: var(--af-navy);
  border-color: transparent;
}
.btn--ghost:hover { background: rgba(7,62,119,.06); }

.btn--sm { padding: 0.5rem 1.25rem; font-size: 0.875rem; }
.btn--lg { padding: 0.9rem 2.2rem; font-size: 1.05rem; }

.btn-group { display: flex; flex-wrap: wrap; gap: var(--sp-md); align-items: center; }

/* ── Announcement Bar ───────────────────────────────────────── */
.announce-bar {
  background: var(--af-yellow);
  color: var(--af-deep-navy);
  text-align: center;
  padding: 0.6rem var(--sp-xl);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-md);
  position: relative;
  z-index: 200;
  transition: max-height var(--t-normal), opacity var(--t-normal), padding var(--t-normal);
  overflow: hidden;
  max-height: 60px;
}
.announce-bar.dismissed { max-height: 0; opacity: 0; padding-block: 0; }
.announce-bar a { color: var(--af-deep-navy); font-weight: 700; text-decoration: underline; }
.announce-bar a:hover { opacity: .75; }
.announce-bar__dismiss {
  position: absolute; right: var(--sp-lg); top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  font-size: 1.1rem; color: var(--af-deep-navy); opacity: .6;
  transition: opacity var(--t-fast);
}
.announce-bar__dismiss:hover { opacity: 1; }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,246,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--af-border);
  transition: box-shadow var(--t-normal);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.navbar__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  height: 68px;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-xl);
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-shrink: 0;
  text-decoration: none;
}
.navbar__logo img { height: 38px; width: auto; }
.navbar__logo-text { font-weight: 800; font-size: 1.1rem; color: var(--af-navy); letter-spacing: 0.03em; }
.navbar__logo-sub { font-size: 0.65rem; color: var(--af-muted); letter-spacing: 0.06em; margin-top: -2px; }
.navbar__links {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex: 1;
  justify-content: center;
}
.navbar__links a {
  padding: 0.4rem 0.75rem;
  border-radius: var(--r-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--af-slate);
  transition: background var(--t-fast), color var(--t-fast);
  position: relative;
  white-space: nowrap;
}
.navbar__links a:hover { background: rgba(7,62,119,.06); color: var(--af-navy); }
.navbar__links a.active {
  color: var(--af-navy);
  font-weight: 700;
}
.navbar__links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--af-yellow);
  border-radius: 2px;
}
.navbar__links a.active--blue::after { background: var(--af-blue); }
.navbar__cta { flex-shrink: 0; }

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-sm);
  margin-left: auto;
}
.navbar__hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--af-navy);
  border-radius: 2px;
  transition: transform var(--t-normal), opacity var(--t-fast);
}

/* Mobile nav drawer */
.nav-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 90;
}
.nav-mobile {
  position: fixed;
  top: 0; right: -320px;
  width: 300px; height: 100%;
  background: #fff;
  z-index: 95;
  box-shadow: -4px 0 24px rgba(0,0,0,.15);
  transition: right var(--t-slow);
  padding: var(--sp-xl);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  overflow-y: auto;
}
.nav-mobile.open { right: 0; }
.nav-mobile__close {
  align-self: flex-end;
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  color: var(--af-slate); margin-bottom: var(--sp-md);
}
.nav-mobile a {
  display: block; padding: 0.75rem var(--sp-md);
  border-radius: var(--r-sm); font-size: 1rem; font-weight: 500;
  color: var(--af-slate); border-bottom: 1px solid var(--af-border);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav-mobile a:hover { background: rgba(7,62,119,.06); color: var(--af-navy); }
.nav-mobile a.active { color: var(--af-navy); font-weight: 700; }

/* ── Section Headers ────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--af-blue);
  margin-bottom: var(--sp-sm);
}
.section-label--yellow { color: var(--af-yellow); }
.section-label--green { color: var(--af-green); }
.section-label--white { color: rgba(255,255,255,.7); }

.section-heading {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--af-deep-navy);
  line-height: 1.2;
  margin-bottom: var(--sp-sm);
}
.section-heading--white { color: #fff; }
.section-sub {
  font-size: 1.05rem;
  color: var(--af-muted);
  max-width: 600px;
  margin-bottom: var(--sp-2xl);
}
.section-sub--white { color: rgba(255,255,255,.75); }
.section-sub--center { margin-inline: auto; text-align: center; }
.section-header { text-align: center; margin-bottom: var(--sp-2xl); }

/* ── Feature Cards ──────────────────────────────────────────── */
.feature-card {
  background: #fff;
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--af-border);
  transition: transform var(--t-normal), box-shadow var(--t-normal);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--sp-md);
  background: rgba(7,62,119,.08);
  color: var(--af-navy);
}
.feature-icon--blue { background: rgba(37,99,255,.1); color: var(--af-blue); }
.feature-icon--yellow { background: rgba(254,206,0,.15); color: #b8860b; }
.feature-icon--purple { background: rgba(109,74,255,.1); color: var(--af-purple); }
.feature-icon--green { background: rgba(34,197,94,.12); color: #16a34a; }

/* ── Program Cards ──────────────────────────────────────────── */
.program-card {
  background: #fff;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--af-border);
  transition: transform var(--t-normal), box-shadow var(--t-normal);
  display: flex;
  flex-direction: column;
}
.program-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.program-card__img {
  aspect-ratio: 3/2;
  overflow: hidden;
  background: linear-gradient(135deg, var(--af-navy), var(--af-blue));
  position: relative;
}
.program-card__img img { width: 100%; height: 100%; object-fit: cover; }
.program-card__body { padding: var(--sp-lg); flex: 1; display: flex; flex-direction: column; gap: var(--sp-sm); }
.program-card__grade {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--af-blue);
}
.program-card__title { font-weight: 700; font-size: 1rem; color: var(--af-deep-navy); }
.program-card__desc { font-size: 0.875rem; color: var(--af-muted); flex: 1; }
.program-card__arrow {
  width: 32px; height: 32px;
  border-radius: var(--r-full);
  background: var(--af-yellow);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; color: var(--af-deep-navy);
  align-self: flex-start;
  transition: transform var(--t-fast);
}
.program-card:hover .program-card__arrow { transform: translateX(4px); }

/* ── Stats Band ─────────────────────────────────────────────── */
.stats-band {
  background: var(--af-deep-navy);
  color: #fff;
  padding-block: var(--sp-3xl);
}
.stats-band__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--sp-xl);
  text-align: center;
}
.stat-item__number {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--af-yellow);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.stat-item__label { font-size: 0.85rem; color: rgba(255,255,255,.65); font-weight: 500; }
.stat-item__icon { font-size: 1.5rem; margin-bottom: 0.5rem; }

/* ── Testimonial Cards ──────────────────────────────────────── */
.testimonial-card {
  background: #fff;
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--af-border);
}
.testimonial-card__stars { color: var(--af-yellow); font-size: 0.9rem; margin-bottom: var(--sp-sm); }
.testimonial-card__text { font-size: 0.95rem; color: var(--af-slate); margin-bottom: var(--sp-md); font-style: italic; }
.testimonial-card__author { display: flex; align-items: center; gap: var(--sp-sm); }
.testimonial-card__avatar {
  width: 40px; height: 40px; border-radius: var(--r-full);
  background: var(--af-navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
}
.testimonial-card__name { font-weight: 600; font-size: 0.9rem; color: var(--af-deep-navy); }
.testimonial-card__role { font-size: 0.75rem; color: var(--af-muted); }

/* ── CTA Section ────────────────────────────────────────────── */
.cta-section {
  background: var(--af-deep-navy);
  color: #fff;
  padding-block: var(--sp-4xl);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 80% 50%, rgba(254,206,0,.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section__inner { position: relative; z-index: 1; text-align: center; }

/* ── Pathway Cards ──────────────────────────────────────────── */
.pathway-card {
  background: #fff;
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  border: 2px solid var(--af-border);
  position: relative;
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}
.pathway-card:hover { transform: translateY(-4px); border-color: var(--af-blue); box-shadow: var(--shadow-lg); }
.pathway-card__num {
  font-size: 0.7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  color: var(--af-blue);
}
.pathway-card__grade {
  display: inline-block;
  font-size: 0.72rem; font-weight: 600; letter-spacing: .04em;
  background: rgba(37,99,255,.1); color: var(--af-blue);
  padding: 0.2rem 0.6rem; border-radius: var(--r-full);
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  background: var(--af-deep-navy);
  color: rgba(255,255,255,.75);
  padding-top: var(--sp-4xl);
  padding-bottom: var(--sp-xl);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--sp-2xl);
  margin-bottom: var(--sp-3xl);
}
.footer__brand { }
.footer__brand img { height: 40px; margin-bottom: var(--sp-md); }
.footer__brand-name { font-weight: 800; color: #fff; font-size: 1.2rem; margin-bottom: 0.25rem; }
.footer__tagline { font-size: 0.85rem; color: rgba(255,255,255,.5); margin-bottom: var(--sp-lg); }
.footer__social { display: flex; flex-wrap: wrap; gap: var(--sp-sm); }
.footer__social a {
  min-height: 36px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  gap: .4rem;
  font-size: 0.82rem; color: rgba(255,255,255,.82);
  font-weight: 700;
  padding: .45rem .75rem;
  border: 1px solid rgba(255,255,255,.1);
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.footer__social a:hover { background: var(--af-yellow); border-color: var(--af-yellow); color: var(--af-deep-navy); transform: translateY(-1px); }
.footer__social i { font-size: 1rem; }
.footer__col-title { font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: .06em; color: #fff; margin-bottom: var(--sp-md); }
.footer__col a {
  display: block; font-size: 0.875rem; color: rgba(255,255,255,.55);
  padding-block: 0.3rem;
  transition: color var(--t-fast);
}
.footer__col a:hover { color: var(--af-yellow); }
.footer__subscribe { display: flex; gap: var(--sp-sm); margin-top: var(--sp-sm); }
.footer__subscribe input {
  flex: 1; padding: 0.6rem var(--sp-md);
  border-radius: var(--r-full); border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.07); color: #fff; font-size: 0.875rem;
}
.footer__subscribe input::placeholder { color: rgba(255,255,255,.35); }
.footer__subscribe button {
  padding: 0.6rem 1.25rem;
  border-radius: var(--r-full); border: none;
  background: var(--af-yellow); color: var(--af-deep-navy);
  font-weight: 700; font-size: 0.85rem; cursor: pointer;
  transition: background var(--t-fast);
}
.footer__subscribe button:hover { background: #ffe033; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: var(--sp-lg);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: var(--sp-md);
  font-size: 0.8rem; color: rgba(255,255,255,.35);
}

/* ── App Layout ─────────────────────────────────────────────── */
.app-layout { display: flex; min-height: 100vh; flex-direction: column; }
.app-header {
  height: 60px;
  background: #fff;
  border-bottom: 1px solid var(--af-border);
  display: flex; align-items: center;
  padding-inline: var(--sp-xl);
  gap: var(--sp-lg);
  position: sticky; top: 0; z-index: 50;
  flex-shrink: 0;
}
.app-body { display: flex; flex: 1; overflow: hidden; }
.app-sidebar {
  width: 260px;
  background: var(--af-deep-navy);
  color: rgba(255,255,255,.75);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}
.app-main { flex: 1; overflow-y: auto; background: #F3F4F6; }

/* ── Sidebar Navigation ─────────────────────────────────────── */
.sidebar-logo {
  padding: var(--sp-lg) var(--sp-lg) var(--sp-md);
  font-weight: 800; font-size: 0.8rem; letter-spacing: .08em;
  color: rgba(255,255,255,.4); text-transform: uppercase; border-bottom: 1px solid rgba(255,255,255,.06);
}
.sidebar-logo span { color: #fff; }
.sidebar-nav { padding: var(--sp-md) var(--sp-sm); flex: 1; }
.sidebar-section-title {
  font-size: 0.65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.3); padding: var(--sp-sm) var(--sp-md) 0.25rem;
  margin-top: var(--sp-sm);
}
.sidebar-link {
  display: flex; align-items: center; gap: var(--sp-sm);
  padding: 0.6rem var(--sp-md);
  border-radius: var(--r-sm);
  font-size: 0.875rem; font-weight: 500;
  color: rgba(255,255,255,.6);
  cursor: pointer; transition: background var(--t-fast), color var(--t-fast);
  text-decoration: none;
}
.sidebar-link:hover { background: rgba(255,255,255,.07); color: rgba(255,255,255,.9); }
.sidebar-link.active { background: rgba(37,99,255,.25); color: #fff; font-weight: 600; }
.sidebar-link .icon { width: 18px; text-align: center; font-size: 0.9rem; }

/* ── App Header Elements ────────────────────────────────────── */
.app-header__logo { font-weight: 800; font-size: 0.9rem; color: var(--af-navy); white-space: nowrap; }
.app-header__logo span { color: var(--af-blue); }
.app-header__search {
  flex: 1; max-width: 360px;
  display: flex; align-items: center; gap: var(--sp-sm);
  background: #F3F4F6; border: 1px solid var(--af-border);
  border-radius: var(--r-full); padding: 0.45rem var(--sp-md);
  font-size: 0.875rem; color: var(--af-muted);
}
.app-header__search input { background: none; border: none; outline: none; flex: 1; color: var(--af-text); }
.app-header__right { display: flex; align-items: center; gap: var(--sp-md); margin-left: auto; }
.xp-badge {
  display: flex; align-items: center; gap: 0.3rem;
  background: rgba(109,74,255,.1); color: var(--af-purple);
  font-weight: 700; font-size: 0.8rem;
  padding: 0.3rem 0.75rem; border-radius: var(--r-full);
}
.streak-badge {
  display: flex; align-items: center; gap: 0.3rem;
  background: rgba(249,115,22,.1); color: #ea580c;
  font-weight: 700; font-size: 0.8rem;
  padding: 0.3rem 0.75rem; border-radius: var(--r-full);
}
.app-avatar {
  width: 34px; height: 34px;
  border-radius: var(--r-full);
  background: var(--af-navy);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
}

/* ── Progress Indicators ────────────────────────────────────── */
.progress-bar-wrap {
  background: var(--af-border);
  border-radius: var(--r-full);
  overflow: hidden;
  height: 8px;
}
.progress-bar-fill {
  height: 100%;
  border-radius: var(--r-full);
  background: var(--af-blue);
  transition: width 0.8s ease;
}
.progress-bar-fill--yellow { background: var(--af-yellow); }
.progress-bar-fill--green { background: var(--af-success); }
.progress-bar-fill--purple { background: var(--af-purple); }

.progress-circle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.progress-circle svg { transform: rotate(-90deg); }
.progress-circle__label {
  position: absolute;
  text-align: center;
  font-weight: 800;
  color: var(--af-deep-navy);
}

/* ── Code Editor ─────────────────────────────────────────────── */
.code-editor-panel {
  background: #0D1117;
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.code-editor-header {
  background: #161B22;
  padding: 0.6rem var(--sp-md);
  display: flex; align-items: center; gap: var(--sp-sm);
  border-bottom: 1px solid #30363D;
}
.code-tab {
  font-size: 0.8rem; font-weight: 600; color: rgba(255,255,255,.85);
  padding: 0.3rem 0.75rem; border-radius: var(--r-sm);
  background: rgba(255,255,255,.08);
}
.code-editor-area {
  flex: 1;
  display: flex;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  overflow: auto;
  min-height: 200px;
}
.code-line-nums {
  padding: var(--sp-md) 0.75rem;
  color: rgba(255,255,255,.2);
  user-select: none;
  text-align: right;
  min-width: 42px;
  border-right: 1px solid #30363D;
  background: #0D1117;
}
.code-textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  padding: var(--sp-md);
  color: #E6EDF3;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  tab-size: 4;
  white-space: pre;
}
.code-editor-footer {
  background: #161B22;
  padding: 0.6rem var(--sp-md);
  display: flex; justify-content: flex-end; align-items: center; gap: var(--sp-sm);
  border-top: 1px solid #30363D;
}
.run-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1.25rem;
  background: var(--af-success); color: #fff;
  border: none; border-radius: var(--r-sm);
  font-weight: 700; font-size: 0.875rem; cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
}
.run-btn:hover { background: #16a34a; transform: translateY(-1px); }
.run-btn:active { transform: translateY(0); }
.reset-btn {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-sm); padding: 0.5rem 0.75rem;
  color: rgba(255,255,255,.5); cursor: pointer; font-size: 0.8rem;
  transition: background var(--t-fast);
}
.reset-btn:hover { background: rgba(255,255,255,.1); color: rgba(255,255,255,.8); }

/* Output panel */
.output-panel {
  background: #0D1117;
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.output-header {
  background: #161B22;
  padding: 0.6rem var(--sp-md);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid #30363D;
}
.output-title { font-size: 0.8rem; font-weight: 600; color: rgba(255,255,255,.7); }
.output-clear {
  background: none; border: none; font-size: 0.75rem; color: rgba(255,255,255,.35);
  cursor: pointer; transition: color var(--t-fast);
}
.output-clear:hover { color: rgba(255,255,255,.7); }
.output-body {
  padding: var(--sp-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #E6EDF3;
  min-height: 80px;
  flex: 1;
  overflow-y: auto;
  line-height: 1.6;
  white-space: pre-wrap;
}
.output-body--empty { color: rgba(255,255,255,.25); font-style: italic; }
.output-success {
  padding: 0.5rem var(--sp-md);
  background: rgba(34,197,94,.1);
  border-top: 1px solid rgba(34,197,94,.2);
  font-size: 0.8rem; color: var(--af-success);
  display: flex; align-items: center; gap: 0.4rem;
}
.output-error { color: #f87171 !important; }

/* ── Grit Mascot SVG Styles ─────────────────────────────────── */
.grit-mascot { overflow: visible; }
.grit-float {
  animation: gritFloat 3s ease-in-out infinite;
}
@keyframes gritFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── Checklist ──────────────────────────────────────────────── */
.checklist { list-style: none; display: flex; flex-direction: column; gap: var(--sp-sm); }
.checklist li {
  display: flex; align-items: flex-start; gap: var(--sp-sm);
  font-size: 0.9rem; color: var(--af-slate);
}
.checklist li::before {
  content: '✓';
  color: var(--af-success);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.checklist--white li { color: rgba(255,255,255,.8); }
.checklist--white li::before { color: var(--af-yellow); }

/* ── Grid Utilities ─────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-xl); }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--sp-lg); }

/* ── Scroll Reveal ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .navbar__links { display: none; }
  .navbar__cta.desktop-only { display: none; }
  .navbar__hamburger { display: flex; }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--sp-xl); }
  .app-sidebar { width: 220px; }
}
@media (max-width: 767px) {
  .container { padding-inline: var(--sp-md); }
  .container--sm { padding-inline: var(--sp-md); }
  .navbar__inner { padding-inline: var(--sp-md); }
  .section { padding-block: var(--sp-2xl); }
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; align-items: stretch; }
  .btn-group .btn { width: 100%; white-space: normal; }
  .app-sidebar { display: none; }
  .stats-band__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 430px) {
  :root {
    --sp-xl: 1.25rem;
    --sp-2xl: 2rem;
    --sp-3xl: 2.75rem;
    --sp-4xl: 3.5rem;
  }
  .announce-bar { align-items: flex-start; flex-direction: column; gap: .25rem; padding-right: 3rem; text-align: left; }
  .navbar__logo img { height: 34px; }
  .navbar__logo-text { font-size: 1rem; }
  .navbar__logo-sub { display: none; }
  .nav-mobile { width: min(86vw, 300px); }
  .btn { padding-inline: 1rem; }
  .stats-band__grid { grid-template-columns: 1fr; }
}