/* Austin AI School brand system */
:root {
  color-scheme: dark;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --ink-950: #05070d;
  --ink-900: #070b14;
  --ink-850: #0a1020;
  --ink-800: #0e1728;
  --ink-700: #142033;
  --ink-600: #1f2d44;
  --paper: #f7faff;
  --mist: #d7e2f2;
  --muted: #92a3bb;
  --quiet: #687a92;

  --blue: #326bff;
  --blue-strong: #2454d8;
  --cyan: #20d3ee;
  --mint: #58e6b0;
  --amber: #f6b44b;
  --coral: #ff6b5c;

  --surface: rgba(13, 21, 36, 0.82);
  --surface-strong: #101a2b;
  --surface-soft: rgba(255, 255, 255, 0.045);
  --line: rgba(180, 205, 238, 0.14);
  --line-strong: rgba(126, 171, 255, 0.32);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --glow: 0 0 0 1px rgba(32, 211, 238, 0.18), 0 24px 70px rgba(50, 107, 255, 0.16);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1180px;
  --nav-height: 74px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--paper);
  background:
    linear-gradient(180deg, rgba(32, 211, 238, 0.06), transparent 360px),
    linear-gradient(135deg, #05070d 0%, #080d18 48%, #0c1322 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 72%);
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

img,
svg {
  max-width: 100%;
}

::selection {
  color: var(--ink-950);
  background: var(--mint);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 200;
  transform: translateY(-180%);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-950);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 7, 13, 0.78);
  backdrop-filter: blur(18px);
}

.nav-inner {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  filter: drop-shadow(0 10px 24px rgba(32, 211, 238, 0.16));
}

.brand-word {
  display: grid;
  gap: 0;
  line-height: 1.02;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-domain {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--muted);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a:not(.button) {
  border-radius: 999px;
  padding: 9px 12px;
  color: var(--muted);
  font-size: 0.91rem;
  font-weight: 700;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a:not(.button):hover,
.nav-links a[aria-current="page"] {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.055);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--paper);
  background: rgba(255, 255, 255, 0.045);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-6px) rotate(-45deg);
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.93rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #04101d;
  background: linear-gradient(135deg, var(--mint), var(--cyan) 54%, #7aa2ff);
  box-shadow: 0 16px 42px rgba(32, 211, 238, 0.18);
}

.button-primary:hover {
  box-shadow: 0 22px 56px rgba(32, 211, 238, 0.24);
}

.button-secondary {
  color: var(--paper);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.055);
}

.button-secondary:hover {
  border-color: rgba(88, 230, 176, 0.5);
  background: rgba(88, 230, 176, 0.07);
}

.button-ghost {
  color: var(--mist);
  border-color: var(--line);
  background: transparent;
}

.button-small {
  min-height: 36px;
  padding: 8px 12px;
  font-size: 0.84rem;
}

.button-large {
  min-height: 52px;
  padding: 14px 20px;
  font-size: 1rem;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 9vw, 116px) 0 72px;
}

.hero::after,
.section-band::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(32, 211, 238, 0.42), rgba(88, 230, 176, 0.26), transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.74fr);
  gap: clamp(36px, 6vw, 82px);
  align-items: center;
}

.hero-copy {
  max-width: 730px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 18px rgba(88, 230, 176, 0.75);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--paper);
  font-family: var(--font-display);
  letter-spacing: 0;
  line-height: 1.05;
}

h1 {
  max-width: 780px;
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
}

.page-title {
  font-size: clamp(2.7rem, 7vw, 5.7rem);
}

h2 {
  font-size: clamp(2rem, 4.8vw, 4rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  font-weight: 800;
}

h4 {
  font-size: 1.02rem;
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #c8f7ff 28%, var(--cyan) 56%, var(--mint) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  max-width: 690px;
  margin: 22px 0 0;
  color: var(--mist);
  font-size: clamp(1.08rem, 2.1vw, 1.38rem);
  line-height: 1.62;
}

.sublead {
  max-width: 710px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.hero-actions,
.section-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 30px;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  max-width: 670px;
}

.proof-item {
  padding: 18px;
  background: rgba(8, 13, 24, 0.92);
}

.proof-value {
  display: block;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 800;
}

.proof-label {
  display: block;
  margin-top: 3px;
  color: var(--quiet);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
}

.system-panel {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.02)),
    rgba(10, 16, 31, 0.82);
  box-shadow: var(--glow);
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 54px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mist);
  font-size: 0.86rem;
  font-weight: 800;
}

.panel-title::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--cyan);
}

.panel-status {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}

.flow-map {
  display: grid;
  gap: 16px;
  padding: 24px;
}

.flow-row {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 14px;
  align-items: center;
}

.flow-label {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.flow-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.flow-node {
  min-height: 62px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px;
  background: rgba(255, 255, 255, 0.045);
}

.flow-node strong {
  display: block;
  color: var(--paper);
  font-size: 0.85rem;
}

.flow-node span {
  display: block;
  margin-top: 4px;
  color: var(--quiet);
  font-size: 0.73rem;
  line-height: 1.35;
}

.flow-node.is-active {
  border-color: rgba(88, 230, 176, 0.6);
  background: rgba(88, 230, 176, 0.08);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 0 24px 24px;
}

.signal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(5, 7, 13, 0.4);
}

.signal b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.55rem;
}

.signal span {
  color: var(--muted);
  font-size: 0.82rem;
}

.section {
  position: relative;
  padding: clamp(68px, 9vw, 112px) 0;
}

.section-tight {
  padding: clamp(48px, 7vw, 78px) 0;
}

.section-band {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)),
    rgba(7, 11, 20, 0.72);
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.5fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 34px;
}

.section-header.center {
  display: block;
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.section-header.center .eyebrow {
  justify-content: center;
}

.section-kicker {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.72;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.program-card,
.event-card,
.quote-card,
.step-card,
.faq-item,
.info-card,
.timeline-item,
.metric-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    rgba(11, 18, 32, 0.78);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
}

.card,
.program-card,
.quote-card,
.step-card,
.info-card,
.timeline-item,
.metric-card {
  padding: 24px;
}

.program-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  gap: 18px;
}

.program-card.featured {
  border-color: rgba(88, 230, 176, 0.45);
  box-shadow: var(--glow);
}

.program-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--mist);
  background: rgba(255, 255, 255, 0.045);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pill.cyan {
  border-color: rgba(32, 211, 238, 0.32);
  color: var(--cyan);
  background: rgba(32, 211, 238, 0.08);
}

.pill.mint {
  border-color: rgba(88, 230, 176, 0.34);
  color: var(--mint);
  background: rgba(88, 230, 176, 0.08);
}

.pill.amber {
  border-color: rgba(246, 180, 75, 0.36);
  color: var(--amber);
  background: rgba(246, 180, 75, 0.09);
}

.card p,
.program-card p,
.event-card p,
.quote-card p,
.step-card p,
.info-card p,
.timeline-item p,
.metric-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.program-list,
.check-list,
.plain-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.program-list {
  margin-top: auto;
}

.program-list li,
.check-list li {
  position: relative;
  padding-left: 23px;
  color: var(--mist);
  font-size: 0.94rem;
}

.program-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border: 2px solid var(--mint);
  border-radius: 50%;
}

.logo-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.logo-placeholder {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  color: var(--quiet);
  background: rgba(255, 255, 255, 0.025);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 0.7fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}

.stack {
  display: grid;
  gap: 18px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-number {
  display: inline-grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid rgba(32, 211, 238, 0.35);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  background: rgba(32, 211, 238, 0.08);
  font-family: var(--font-mono);
  font-weight: 800;
}

.metric-card b {
  display: block;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}

.event-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 22px;
}

.event-date {
  display: inline-grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid rgba(32, 211, 238, 0.34);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  background: rgba(32, 211, 238, 0.07);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-transform: uppercase;
}

.event-card h3 {
  margin-top: 18px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.event-card .button {
  margin-top: auto;
}

.quote-card {
  display: grid;
  min-height: 100%;
  gap: 20px;
}

.quote-card blockquote {
  margin: 0;
  color: var(--mist);
  font-size: 1.04rem;
  line-height: 1.7;
}

.quote-author {
  display: grid;
  gap: 2px;
}

.quote-author strong {
  color: var(--paper);
}

.quote-author span {
  color: var(--quiet);
  font-size: 0.88rem;
}

.cta-band {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 54px);
  background:
    linear-gradient(135deg, rgba(50, 107, 255, 0.18), rgba(32, 211, 238, 0.1) 48%, rgba(88, 230, 176, 0.12)),
    rgba(7, 11, 20, 0.82);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  max-width: 760px;
}

.form-shell {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: rgba(5, 7, 13, 0.46);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field-full {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 7px;
  color: var(--mist);
  font-size: 0.86rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 13px;
  color: var(--paper);
  background: rgba(255, 255, 255, 0.055);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--quiet);
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(32, 211, 238, 0.72);
  outline: none;
}

.form-note,
.success-message {
  color: var(--muted);
  font-size: 0.86rem;
}

.success-message {
  display: none;
  margin-top: 14px;
  color: var(--mint);
  font-weight: 800;
}

.form-shell.is-submitted .success-message {
  display: block;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  padding: 22px 24px;
  color: var(--paper);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.faq-question span:first-child {
  font-weight: 800;
}

.faq-icon {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--cyan);
  transition: transform 180ms ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 24px;
  color: var(--muted);
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-answer p {
  margin: 0;
  max-width: 860px;
}

.page-hero {
  padding: clamp(64px, 8vw, 96px) 0 clamp(48px, 7vw, 72px);
}

.page-hero .lead {
  max-width: 760px;
}

.curriculum-track {
  display: grid;
  gap: 14px;
  counter-reset: stage;
}

.curriculum-stage {
  counter-increment: stage;
  display: grid;
  grid-template-columns: 62px 1fr minmax(160px, 0.3fr);
  gap: 18px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: rgba(255, 255, 255, 0.035);
}

.curriculum-stage::before {
  content: counter(stage, decimal-leading-zero);
  display: inline-grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--mint);
  background: rgba(88, 230, 176, 0.08);
  border: 1px solid rgba(88, 230, 176, 0.28);
  font-family: var(--font-mono);
  font-weight: 800;
}

.stage-duration {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.stage-copy p {
  margin: 8px 0 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 26px;
  background: rgba(5, 7, 13, 0.72);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(120px, 0.5fr));
  gap: 30px;
}

.footer-brand p {
  margin: 14px 0 0;
  max-width: 360px;
  color: var(--muted);
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer-col h4 {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  text-transform: uppercase;
}

.footer-col a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: 0.84rem;
}

.footer-bottom p {
  margin: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Compatibility for legacy pages that still use the previous class names. */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 7, 13, 0.78);
  backdrop-filter: blur(18px);
}

.nav-logo {
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.04rem;
  font-weight: 800;
}

.btn {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.93rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary,
.btn-nav {
  color: #04101d;
  background: linear-gradient(135deg, var(--mint), var(--cyan) 54%, #7aa2ff);
  box-shadow: 0 16px 42px rgba(32, 211, 238, 0.18);
}

.btn-outline,
.btn-secondary,
.action-btn,
.share-btn {
  color: var(--paper);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.055);
}

.btn-lg {
  min-height: 52px;
  padding: 14px 20px;
  font-size: 1rem;
}

.btn-sm {
  min-height: 36px;
  padding: 8px 12px;
  font-size: 0.84rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.8vw, 4rem);
  font-weight: 800;
}

.section-sub {
  max-width: 710px;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.hero-title {
  font-family: var(--font-display);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 26px;
  background: rgba(5, 7, 13, 0.72);
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px;
    background: rgba(8, 13, 24, 0.98);
    box-shadow: var(--shadow);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a:not(.button),
  .nav-links .button {
    justify-content: center;
    width: 100%;
  }

  .hero-grid,
  .split,
  .section-header {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: none;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .brand-domain {
    display: none;
  }

  h1,
  .page-title {
    font-size: clamp(2.45rem, 13vw, 4.2rem);
  }

  .proof-strip,
  .grid-2,
  .grid-3,
  .grid-4,
  .signal-grid,
  .logo-row,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .flow-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .curriculum-stage {
    grid-template-columns: 1fr;
  }

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

  .button-row,
  .hero-actions,
  .section-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button-row .button,
  .hero-actions .button,
  .section-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}