/* ==========================================================================
   TBAI · המעבדה לAI · shared stylesheet
   Design tokens and components per design_handoff_tbai_site/README.md
   ========================================================================== */

:root {
  --bg: #FBF7EF;
  --bg-alt: #F5EDDE;
  --ink: #26201A;
  --muted: #5F5749;
  --muted-2: #8B7F6A;
  --line: #EADFCC;
  --primary: #D97757;
  --primary-deep: #BC5B36;
  --primary-tint: #FBE9E0;
  --peach: #F2A07B;
  --teal: #2FA79B;
  --teal-deep: #1E7B72;
  --teal-tint: #E4F3F1;
  --on-dark: #FAF3E6;
  --on-dark-2: #D6CCB8;
  --on-dark-3: #B7AC94;
  --on-primary: #FFF9F0;
  --on-gradient: #FCE4D8;
  /* All site typography uses the Arial family, Hebrew and English alike.
     'Arial Hebrew' covers macOS/iOS, where plain Arial lacks Hebrew glyphs. */
  --serif: Arial, 'Arial Hebrew', Helvetica, sans-serif;
  --sans: Arial, 'Arial Hebrew', Helvetica, sans-serif;
}

/* ---------- Base ---------- */

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  /* Arial ships only regular (400) and bold (700) faces; the whole site uses
     exactly those two weights, and synthetic faces are disabled. */
  font-synthesis: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}
a:hover { color: var(--primary-deep); }

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

h1, h2, h3 { margin: 0; }

.container { max-width: 1180px; margin: 0 auto; padding-inline: 32px; }
.container-1000 { max-width: 1000px; margin: 0 auto; padding-inline: 32px; }
.container-900 { max-width: 900px; margin: 0 auto; padding-inline: 32px; }
.container-820 { max-width: 820px; margin: 0 auto; padding-inline: 32px; }

/* ---------- Typography ---------- */

.h-serif { font-family: var(--serif); font-weight: 700; letter-spacing: -1px; }

.h1 { font-family: var(--serif); font-weight: 700; letter-spacing: -1px; line-height: 1.16; font-size: 54px; }
.h1-52 { font-size: 52px; line-height: 1.18; }
.h1-48 { font-size: 48px; line-height: 1.2; }
.h1-44 { font-size: 44px; line-height: 1.2; }

.h2 { font-family: var(--serif); font-weight: 700; font-size: 38px; letter-spacing: -.5px; }
.h2-36 { font-size: 36px; }
.h2-34 { font-size: 34px; }

.accent { color: var(--primary-deep); }
.nowrap { white-space: nowrap; }

.lead { font-size: 21px; line-height: 1.65; color: var(--muted); }
.lead-20 { font-size: 20px; }

.pull-quote {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.45;
}

.section-note { text-align: center; color: var(--muted-2); font-size: 15px; }

/* Visually hidden, available to screen readers and crawlers */
.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;
}

/* ---------- Eyebrow ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--primary-deep);
}
.eyebrow .dash { width: 34px; height: 1.5px; background: var(--primary); }
.eyebrow-teal { color: var(--teal-deep); }
.eyebrow-teal .dash { background: var(--teal); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  border-radius: 999px;
  font-weight: 700;
  font-family: var(--sans);
  cursor: pointer;
  border: 0;
  transition: background-color .15s ease, color .15s ease, transform .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  font-size: 18px;
  padding: 16px 36px;
  box-shadow: 0 14px 30px rgba(217, 119, 87, .32);
}
.btn-primary:hover { background: var(--primary-deep); color: var(--on-primary); }

.btn-primary-lg { font-size: 19px; padding: 17px 38px; }
.btn-primary-md { font-size: 17px; padding: 14px 30px; box-shadow: 0 12px 26px rgba(217, 119, 87, .3); }
.btn-primary-sm { font-size: 16px; padding: 12px 28px; box-shadow: none; }

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  font-size: 18px;
  padding: 14px 32px;
}
.btn-outline:hover { background: var(--ink); color: var(--on-dark); }
.btn-outline-md { font-size: 17px; padding: 12px 28px; }
.btn-outline-sm { font-size: 16px; padding: 10px 26px; }

.btn-dark {
  background: var(--ink);
  color: var(--on-dark);
  font-size: 18px;
  padding: 16px 38px;
}
.btn-dark:hover { background: #000; color: var(--on-primary); }

.btn-light-outline {
  background: transparent;
  border: 2px solid var(--on-dark);
  color: var(--on-dark);
  font-size: 18px;
  padding: 14px 32px;
}
.btn-light-outline:hover { background: var(--on-dark); color: var(--ink); }

.link-underline {
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  border-bottom: 2.5px solid var(--primary);
  padding-bottom: 2px;
}

.arrow-link { font-weight: 700; font-size: 16px; }
.arrow-link.accent { color: var(--primary-deep); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 247, 239, .94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 44px; height: 44px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--serif); font-weight: 700; font-size: 22px; color: var(--ink); }
.brand-sub { font-size: 11px; color: #9C8F76; letter-spacing: 2.5px; }

.site-nav { display: flex; align-items: center; gap: 28px; font-weight: 700; font-size: 16px; }
.site-nav a.active { color: var(--primary-deep); }

.nav-cta {
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  padding: 11px 24px;
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(217, 119, 87, .28);
}
.nav-cta:hover { background: var(--primary-deep); color: var(--on-primary); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--ink);
  border-radius: 2px;
  margin: 5px 0;
  transition: transform .15s ease, opacity .15s ease;
}
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero tints ---------- */

.hero-tint-start { background: radial-gradient(ellipse 800px 400px at 10% 0%, rgba(217, 119, 87, .08), transparent 65%); }
.hero-tint-center { background: radial-gradient(ellipse 800px 400px at 50% 0%, rgba(217, 119, 87, .08), transparent 65%); }
.hero-tint-end { background: radial-gradient(ellipse 800px 400px at 90% 0%, rgba(217, 119, 87, .08), transparent 65%); }

/* ---------- Sections ---------- */

.section { padding-block: 72px; }
.section-top { padding-top: 72px; }
.bg-alt { background: var(--bg-alt); }

.section-head { text-align: center; margin-bottom: 38px; }
.section-head .eyebrow { margin-bottom: 14px; }

/* ---------- Announcement bar ---------- */

.announcement {
  background: var(--ink);
  color: var(--on-dark);
  padding: 22px 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  flex-wrap: wrap;
}
.announcement .highlight { font-weight: 700; color: var(--peach); }
.announcement .sub { color: var(--on-dark-3); }

/* ---------- Cards ---------- */

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px;
}

.card-lg { border-radius: 18px; padding: 32px; }

.card-featured {
  border: 1.5px solid var(--primary);
  border-radius: 18px;
  padding: 32px;
  position: relative;
  box-shadow: 0 14px 34px rgba(217, 119, 87, .14);
}

.card-badge {
  position: absolute;
  top: -13px;
  inset-inline-start: 26px;
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  font-size: 13px;
  padding: 5px 15px;
  border-radius: 999px;
}

.card-col { display: flex; flex-direction: column; }
.card-col .card-body { flex: 1; }

.card h3.serif { font-family: var(--serif); font-weight: 700; font-size: 23px; }
.card .card-text { color: var(--muted); font-size: 16px; line-height: 1.6; margin: 10px 0 0; }

/* ---------- Number chips ---------- */

.num-chip {
  flex: none;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-weight: 700;
  border-radius: 12px;
  width: 44px;
  height: 44px;
  font-size: 20px;
}
.num-chip-orange { background: var(--primary-tint); color: var(--primary-deep); }
.num-chip-teal { background: var(--teal-tint); color: var(--teal-deep); }
.num-chip-dark { background: var(--ink); color: var(--on-dark); }
.num-chip-solid { background: var(--primary); color: var(--on-primary); }

.num-chip-46 { width: 46px; height: 46px; }
.num-chip-42 { width: 42px; height: 42px; font-size: 18px; }
.num-chip-52 { width: 52px; height: 52px; font-size: 24px; border-radius: 14px; }

/* ---------- Module rows ---------- */

.module-row {
  display: flex;
  gap: 20px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
}
.module-row h3 { font-weight: 700; font-size: 20px; font-family: var(--sans); }
.module-row p { color: var(--muted); margin: 4px 0 0; font-size: 16.5px; }

.module-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.module-grid .module-row { gap: 18px; padding: 24px; }
.module-grid h3 { font-size: 18.5px; }
.module-grid p { font-size: 16px; }

.module-stack { display: flex; flex-direction: column; gap: 14px; }

/* ---------- Lab rows ---------- */

.lab-row {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}
.lab-row-featured {
  border: 1.5px solid var(--primary);
  box-shadow: 0 14px 34px rgba(217, 119, 87, .12);
}
.lab-row h3 { font-family: var(--serif); font-weight: 700; font-size: 24px; }
.lab-row p { color: var(--muted); margin: 8px 0 0; }
.lab-row p + p { margin-top: 6px; }

.chip {
  display: inline-block;
  font-weight: 700;
  font-size: 13px;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.chip-open { background: var(--primary-tint); color: var(--primary-deep); }
.chip-soon { background: var(--bg-alt); color: var(--muted-2); }

/* ---------- Grids ---------- */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }

/* ---------- Trust row ---------- */

.trust-row {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--muted-2);
  font-weight: 700;
  flex-wrap: nowrap;
  white-space: nowrap;
}
.trust-row span { display: flex; align-items: center; gap: 6px; }
.trust-row .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  flex: none;
  padding: 0;
}

/* ---------- Images ---------- */

.img-slot {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--line);
}
.img-slot img { width: 100%; height: 100%; object-fit: cover; }

.hero-carousel img { position: absolute; inset: 0; opacity: 0; transition: opacity .9s ease; }
.hero-carousel img.active { opacity: 1; }
.ratio-3-4 { aspect-ratio: 3 / 4; }
.ratio-1-1 { aspect-ratio: 1 / 1; }
.ratio-4-3 { aspect-ratio: 4 / 3; }
.ratio-2-3 { aspect-ratio: 2 / 3; }

.img-frame { position: relative; }
.img-frame::before {
  content: "";
  position: absolute;
  inset: -14px 14px 14px -14px;
  border: 1.5px solid var(--primary);
  border-radius: 20px;
  pointer-events: none;
}

.img-placeholder {
  display: grid;
  place-items: center;
  background: var(--bg-alt);
  color: var(--muted-2);
  font-size: 15px;
  text-align: center;
  padding: 24px;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

.float-badge {
  position: absolute;
  bottom: -20px;
  inset-inline-start: -20px;
  background: var(--ink);
  color: var(--on-dark);
  border-radius: 14px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 18px 40px rgba(38, 32, 26, .3);
}
.float-badge .big {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 32px;
  color: var(--peach);
}
.float-badge .small { font-size: 14px; line-height: 1.35; color: var(--on-dark-2); }

/* ---------- CTA bands ---------- */

.cta-band {
  background: linear-gradient(120deg, var(--primary), var(--primary-deep));
  color: var(--on-primary);
  padding: 54px;
  text-align: center;
  border-radius: 22px;
}
.cta-band-dark { background: var(--ink); color: var(--on-dark); }
.cta-band .sub {
  font-size: 19px;
  margin: 12px auto 0;
  max-width: 560px;
  line-height: 1.6;
  color: var(--on-gradient);
}
.cta-band-dark .sub { color: var(--on-dark-2); }
.cta-band .actions {
  display: flex;
  gap: 14px;
  margin-top: 26px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Check pills / fit lists ---------- */

.pill-list { display: flex; flex-wrap: wrap; gap: 12px; }
.pill {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 15.5px;
}
.pill .check { color: var(--teal); font-weight: 700; }

.fit-card { background: #fff; border: 1.5px solid var(--teal); border-radius: 18px; padding: 32px; }
.unfit-card { background: transparent; border: 1.5px dashed #C9BCA4; border-radius: 18px; padding: 32px; color: #7a7266; }
.fit-card h3, .unfit-card h3 { font-family: var(--serif); font-weight: 700; font-size: 24px; margin-bottom: 16px; }
.unfit-card h3 { color: var(--muted-2); }
.fit-list { display: flex; flex-direction: column; gap: 12px; font-size: 17px; line-height: 1.5; }
.fit-list span { display: flex; gap: 10px; }
.fit-list .mark { font-weight: 700; flex: none; }
.fit-card .mark { color: var(--teal); }
.unfit-card .mark { color: #C9BCA4; }

/* ---------- Testimonials ---------- */

.quote-mark {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 44px;
  line-height: .6;
  color: var(--primary);
  margin-bottom: 16px;
}
.testimonial-person { display: flex; align-items: center; gap: 12px; margin-top: 22px; }
.avatar-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex: none;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 18px;
}
.avatar-orange { background: var(--primary-tint); color: var(--primary-deep); }
.avatar-teal { background: var(--teal-tint); color: var(--teal-deep); }
.testimonial-person .who { font-size: 14px; color: var(--muted-2); }

/* ---------- FAQ ---------- */

.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px 24px;
}
.faq-list summary {
  font-weight: 700;
  cursor: pointer;
  padding: 14px 0;
  list-style: none;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-family: var(--sans);
  font-weight: 400;
  font-size: 24px;
  line-height: 1;
  color: var(--primary-deep);
  flex: none;
  transition: transform .15s ease;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { color: var(--muted); padding-bottom: 14px; margin: 0; }

/* ---------- Forms ---------- */

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 34px;
  box-shadow: 0 18px 44px rgba(38, 32, 26, .08);
}
.form-card .form-fields { display: flex; flex-direction: column; gap: 16px; }
.form-card label { font-weight: 700; margin-bottom: 6px; font-size: 16px; display: block; }
.form-card input,
.form-card select,
.form-card textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-family: var(--sans);
  font-size: 16px;
  background: var(--bg);
  color: var(--ink);
}
.form-card textarea { min-height: 110px; resize: vertical; }
.form-card ::placeholder { color: #B0A48C; font-family: var(--sans); opacity: 1; }
.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}
.form-card .field-error { border-color: var(--primary-deep); }
.form-card .error-note { color: var(--primary-deep); font-size: 14px; margin: 4px 0 0; display: none; }
.form-card .field-invalid .error-note { display: block; }
.form-submit {
  width: 100%;
  font-size: 18px;
  padding: 16px;
  text-align: center;
  box-shadow: 0 12px 26px rgba(217, 119, 87, .3);
}
.form-success {
  display: none;
  background: var(--teal-tint);
  color: var(--teal-deep);
  border-radius: 12px;
  padding: 14px 18px;
  font-weight: 700;
  text-align: center;
}
.form-success.show { display: block; }
.form-error {
  display: none;
  background: #fdecea;
  color: #a4321f;
  border-radius: 12px;
  padding: 14px 18px;
  text-align: center;
}
.form-error.show { display: block; }

.hp-field { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- Video placeholder ---------- */

.video-placeholder {
  aspect-ratio: 16 / 9;
  background: var(--ink);
  border-radius: 20px;
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: 0 24px 60px rgba(38, 32, 26, .25);
}
.play-circle {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--primary);
  display: grid;
  place-items: center;
  box-shadow: 0 14px 40px rgba(217, 119, 87, .4);
}
.play-circle .triangle {
  width: 0;
  height: 0;
  border-top: 16px solid transparent;
  border-bottom: 16px solid transparent;
  border-right: 26px solid var(--on-primary);
  display: block;
  margin-left: -6px;
}
.video-caption {
  position: absolute;
  bottom: 18px;
  inset-inline-start: 24px;
  color: var(--on-dark-3);
  font-size: 14px;
}

/* ---------- Footer ---------- */

.site-footer { background: var(--ink); color: var(--on-dark); padding: 56px 32px 28px; }
.footer-inner { max-width: 1180px; margin: 0 auto; }
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-logo-box {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--on-dark);
  display: grid;
  place-items: center;
}
.footer-logo-box img { width: 34px; height: 34px; object-fit: contain; }
.footer-brand-name { font-family: var(--serif); font-weight: 700; font-size: 22px; }
.footer-tagline { color: var(--on-dark-3); max-width: 280px; font-size: 16px; margin: 14px 0 0; }
.footer-title { font-weight: 700; font-size: 17px; margin-bottom: 14px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; font-size: 16px; }
.footer-links a { color: var(--on-dark-2); }
.footer-links a:hover { color: var(--peach); }
.footer-bottom {
  border-top: 1px solid rgba(250, 243, 230, .15);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: var(--on-dark-3);
}

/* ---------- Page-specific layouts ---------- */

.hero-block { padding-block: 72px 62px; }
.hero-block-center { padding-block: 72px 56px; text-align: center; }
.hero-block-courses { padding-block: 72px 40px; text-align: center; }
.mt-72 { margin-top: 72px; }

.hero-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 56px; align-items: center; }
.hero-grid-business { display: grid; grid-template-columns: 1.35fr .65fr; gap: 52px; align-items: center; }
.hero-grid-about { display: grid; grid-template-columns: .55fr 1.45fr; gap: 56px; align-items: start; }
.hero-grid-contact { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }

.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 34px; flex-wrap: wrap; }

.hero-quote {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.5;
  color: var(--ink);
  margin: 28px 0 0;
}

.principle-card h3 { font-weight: 700; font-size: 19px; font-family: var(--sans); }
.principle-card p { font-size: 15.5px; line-height: 1.6; color: var(--muted); margin: 6px 0 0; }
.principle-card .num-chip { margin-bottom: 14px; }

.teacher-card { padding: 44px 48px; background: #fff; border: 1px solid var(--line); border-radius: 22px; }
.teacher-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: center; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .h1 { font-size: 46px; }
  .h1-52, .h1-48 { font-size: 44px; }
  .h1-44 { font-size: 40px; }
}

@media (max-width: 860px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .module-grid { grid-template-columns: 1fr; }

  .hero-grid,
  .hero-grid-business,
  .hero-grid-about,
  .hero-grid-contact,
  .teacher-grid { grid-template-columns: 1fr !important; }

  .trust-row { flex-wrap: wrap; white-space: normal; }
  .nowrap-mobile-off { white-space: normal !important; }

  .h1 { font-size: 40px; }
  .h1-52, .h1-48 { font-size: 38px; }
  .h1-44 { font-size: 36px; }
  .h2 { font-size: 32px; }

  .cta-band { padding: 40px 28px; }

  /* Mobile nav */
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 78px;
    inset-inline: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 12px 32px 20px;
  }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav .nav-cta {
    margin-top: 12px;
    text-align: center;
    padding: 13px 24px;
    border-bottom: 0;
  }
  .nav-open .site-nav { display: flex; }
}

@media (max-width: 860px) {
  .teacher-card { padding: 32px 28px; }
}

@media (max-width: 640px) {
  .footer-cols { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 520px) {
  .container, .container-1000, .container-900, .container-820 { padding-inline: 20px; }
  .section { padding-block: 56px; }
  .eyebrow { flex-wrap: wrap; }
  .nowrap { white-space: normal; }
  .grid-4 { grid-template-columns: 1fr; }
  .lab-row { flex-direction: column; }
  .module-row { padding: 20px; }

  .h1, .h1-52, .h1-48, .h1-44 { font-size: 32px; }
  .h1 .nowrap, .h1-52 .nowrap, .h1-48 .nowrap { white-space: normal; }
  .h2 { font-size: 28px; }
  .lead { font-size: 18px; }
  .pull-quote { white-space: normal !important; }

  .float-badge { inset-inline-start: 8px; bottom: -16px; padding: 12px 16px; }
  .cta-band { padding: 32px 20px; }
  .form-card { padding: 24px 20px; }
  .site-footer { padding: 44px 20px 24px; }
}