/* =========================================================
   Aethon Learning — design tokens
   ========================================================= */
:root {
  --bg: #0b1a2b;
  --bg-2: #0e2336;
  --surface: #12273d;
  --surface-2: #163049;
  --ink: #eaf1f9;
  --ink-dim: #a8bbd1;
  --ink-mute: #728aa5;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  --brand-1: #f5b544;
  --brand-2: #e86a2e;
  --accent: #6bc1ff;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.18);
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 20px 80px -20px rgba(245, 181, 68, 0.35);

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   Base
   ========================================================= */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
::selection { background: var(--brand-1); color: #1a1208; }

.container {
  width: min(var(--maxw), 100% - 48px);
  margin-inline: auto;
}

/* Decorative background */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}
.bg-orb--a {
  width: 620px; height: 620px;
  top: -200px; left: -200px;
  background: radial-gradient(circle at 30% 30%, rgba(245, 181, 68, 0.55), transparent 60%);
}
.bg-orb--b {
  width: 700px; height: 700px;
  top: 20%; right: -260px;
  background: radial-gradient(circle at 70% 30%, rgba(107, 193, 255, 0.35), transparent 60%);
}
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 20%, #000 30%, transparent 75%);
}

main, .nav, .footer { position: relative; z-index: 1; }

/* =========================================================
   Navigation
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(130%);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  background: rgba(11, 26, 43, 0.55);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(11, 26, 43, 0.82);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 17px;
}
.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  background: rgba(245, 181, 68, 0.08);
  border: 1px solid rgba(245, 181, 68, 0.22);
  border-radius: 10px;
}
.brand__dot { color: var(--brand-1); }

.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  margin-right: 8px;
}
.nav__links a {
  color: var(--ink-dim);
  font-size: 14.5px;
  font-weight: 500;
  transition: color .2s var(--ease);
}
.nav__links a:hover { color: var(--ink); }

.nav__cta { display: flex; gap: 10px; }

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 0 10px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}
.nav__toggle span {
  display: block; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: -0.005em;
  transition: transform .2s var(--ease), background .2s var(--ease), box-shadow .3s var(--ease), border-color .2s var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  color: #1a1208;
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  box-shadow: var(--shadow-glow);
}
.btn--primary:hover {
  box-shadow: 0 24px 80px -16px rgba(245, 181, 68, 0.55);
}
.btn--ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line-strong);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn--lg { padding: 14px 22px; font-size: 15.5px; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 88px 0 60px;
  position: relative;
}
.hero__inner { max-width: 920px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--ink-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: 28px;
}
.pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--brand-1);
  box-shadow: 0 0 0 0 rgba(245, 181, 68, 0.7);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(245, 181, 68, 0.7); }
  70%  { box-shadow: 0 0 0 12px rgba(245, 181, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 181, 68, 0); }
}
.hero__title {
  font-family: "Fraunces", "Inter", serif;
  font-size: clamp(44px, 7.2vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 22px;
}
.grad-text {
  background: linear-gradient(135deg, #ffd27d 0%, var(--brand-1) 35%, var(--brand-2) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lede {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--ink-dim);
  max-width: 640px;
  margin: 0 0 32px;
}
.hero__cta {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin-bottom: 54px;
}
.hero__proof {
  display: flex; flex-direction: column; gap: 14px;
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.logos {
  display: flex; flex-wrap: wrap; gap: 32px 40px;
  text-transform: none;
  letter-spacing: -0.005em;
  font-size: 15px;
  color: var(--ink-dim);
  font-family: "Fraunces", serif;
  font-weight: 500;
  opacity: 0.85;
}

/* =========================================================
   Stats
   ========================================================= */
.stats {
  padding: 24px 0 80px;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.stat {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-areas: "num suf" "label label";
  align-items: baseline;
  column-gap: 2px;
  padding: 8px 12px;
}
.stat__num {
  grid-area: num;
  font-family: "Fraunces", serif;
  font-size: 52px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, var(--brand-1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__suffix {
  grid-area: suf;
  font-family: "Fraunces", serif;
  font-size: 32px;
  color: var(--brand-1);
  font-weight: 500;
}
.stat__label {
  grid-area: label;
  margin-top: 8px;
  color: var(--ink-dim);
  font-size: 14px;
}

/* =========================================================
   Section scaffolding
   ========================================================= */
.section {
  padding: 96px 0;
  position: relative;
}
.section--alt {
  background:
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.025) 20%, rgba(255, 255, 255, 0.025) 80%, transparent);
}
.section__head {
  max-width: 760px;
  margin-bottom: 56px;
}
.kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-1);
  margin-bottom: 14px;
}
.section h2, .cta h2 {
  font-family: "Fraunces", serif;
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0 0 18px;
}
.section h2 em {
  font-style: italic;
  color: var(--brand-1);
  font-weight: 500;
}
.section__head p {
  color: var(--ink-dim);
  font-size: 17px;
  max-width: 620px;
}

/* =========================================================
   Feature cards
   ========================================================= */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(400px 200px at 0% 0%, rgba(245, 181, 68, 0.14), transparent 60%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  color: #1a1208;
  margin-bottom: 18px;
  box-shadow: 0 10px 30px -10px color-mix(in srgb, var(--c2) 60%, transparent);
}
.card h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 15px;
}

/* =========================================================
   Solutions
   ========================================================= */
.solutions__head { margin-bottom: 48px; max-width: 720px; }
.solutions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.solution {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.solution:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.solution__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-1);
  margin-bottom: 18px;
  padding: 4px 10px;
  background: rgba(245, 181, 68, 0.1);
  border: 1px solid rgba(245, 181, 68, 0.2);
  border-radius: 999px;
}
.solution h3 {
  font-family: "Fraunces", serif;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}
.solution ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  color: var(--ink-dim);
  font-size: 15px;
}
.solution li {
  padding-left: 24px;
  position: relative;
}
.solution li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 14px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
}

/* =========================================================
   Steps
   ========================================================= */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  padding: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.step__num {
  font-family: "Fraunces", serif;
  font-size: 40px;
  font-weight: 500;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 181, 68, 0.7);
  display: block;
  margin-bottom: 16px;
}
.step h4 {
  font-size: 17px;
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}
.step p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 14.5px;
}

/* =========================================================
   Quotes
   ========================================================= */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.quote {
  margin: 0;
  padding: 32px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 24px;
}
.quote blockquote {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 19px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.quote blockquote::before {
  content: "\201C";
  display: block;
  font-size: 48px;
  line-height: 0.5;
  color: var(--brand-1);
  margin-bottom: 14px;
}
.quote figcaption {
  display: flex; flex-direction: column;
  font-size: 14px;
  color: var(--ink-mute);
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.quote figcaption strong { color: var(--ink); font-weight: 600; }

/* =========================================================
   CTA
   ========================================================= */
.cta {
  padding: 100px 0 120px;
}
.cta__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 400px at 0% 0%, rgba(245, 181, 68, 0.15), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.cta__copy p {
  color: var(--ink-dim);
  font-size: 16px;
  max-width: 440px;
}
.cta__form {
  display: grid;
  gap: 14px;
  position: relative;
}
.cta__form label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px;
  color: var(--ink-mute);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.cta__form input,
.cta__form select {
  font: inherit;
  color: var(--ink);
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.cta__form input::placeholder { color: var(--ink-mute); }
.cta__form input:focus,
.cta__form select:focus {
  outline: none;
  border-color: var(--brand-1);
  background: rgba(0, 0, 0, 0.35);
}
.cta__form .btn { margin-top: 6px; }
.cta__note {
  font-size: 13px;
  color: #6ae39a;
  margin: 6px 0 0;
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.cta__form[data-state="ok"] .cta__note { opacity: 1; }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 32px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.25));
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer__brand p {
  color: var(--ink-mute);
  margin-top: 12px;
  font-size: 14px;
  max-width: 320px;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.footer__cols h5 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  margin: 0 0 16px;
  font-weight: 600;
}
.footer__cols a {
  display: block;
  color: var(--ink-dim);
  font-size: 14.5px;
  padding: 5px 0;
  transition: color .2s var(--ease);
}
.footer__cols a:hover { color: var(--brand-1); }
.footer__legal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
  font-size: 13px;
}

/* =========================================================
   Reveal animation
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .cards,
  .solutions__grid,
  .quotes { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
  .cta__inner { grid-template-columns: 1fr; padding: 40px; }
}

@media (max-width: 720px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 68px; left: 16px; right: 16px;
    flex-direction: column;
    padding: 18px;
    background: rgba(11, 26, 43, 0.97);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    gap: 10px;
    backdrop-filter: blur(20px);
  }
  .nav.is-open .nav__cta {
    display: flex;
    position: absolute;
    top: 260px; left: 16px; right: 16px;
    flex-direction: column;
  }

  .hero { padding: 56px 0 40px; }
  .section { padding: 72px 0; }
  .cta { padding: 64px 0; }
  .cards, .solutions__grid, .quotes, .steps { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
  .footer__legal { flex-direction: column; gap: 8px; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0s !important; transition-duration: 0s !important; }
  .reveal { opacity: 1; transform: none; }
}