/* =============================================================================
   ChemCoach.ai — marketing site
   Bright, modern SaaS palette. Stays decoupled from the dark in-app theme;
   app screenshots provide the dark contrast.
   ============================================================================= */

/* ── Tokens ───────────────────────────────────────────────────────────────── */
:root {
  --bg:           #F7F9FC;
  --bg-alt:       #FFFFFF;
  --tint:         #EFF4FB;
  --card:         #FFFFFF;
  --border:       #E3E9F2;

  --ink:          #0B1B2E;
  --ink-soft:     #324A66;
  --ink-dim:      #647892;

  --cyan:         #06B6D4;
  --blue:         #2563EB;
  --green:        #10B981;
  --orange:       #F97316;
  --red:          #EF4444;

  --grad-from:    #E0F2FE;
  --grad-to:      #EDE9FE;

  --app-dark:     #080F1C;

  --shadow-sm:    0 4px 12px rgba(11, 27, 46, .06);
  --shadow-md:    0 12px 32px rgba(11, 27, 46, .08);
  --shadow-lg:    0 24px 60px rgba(11, 27, 46, .14);

  --radius-sm:    10px;
  --radius:       16px;
  --radius-lg:    22px;

  --container:    1180px;

  --font:         "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ── Reset / base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; padding: 0; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
blockquote { margin: 0; }
h1, h2, h3, h4 { margin: 0; color: var(--ink); font-weight: 700; letter-spacing: -0.4px; }
p  { margin: 0; color: var(--ink-soft); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}
@media (max-width: 720px) { .container { padding: 0 20px; } }

/* ── Type helpers ─────────────────────────────────────────────────────────── */
.display {
  font-size: clamp(36px, 5.5vw, 60px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  font-weight: 800;
  margin: 0 0 22px;
}
h2 { font-size: clamp(26px, 3.5vw, 40px); line-height: 1.15; letter-spacing: -0.6px; }
h3 { font-size: 18px; line-height: 1.3; }
.lead { font-size: clamp(15px, 1.6vw, 19px); color: var(--ink-soft); margin-bottom: 32px; }

.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--blue);
  text-transform: uppercase;
}
.eyebrow--pill {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(37, 99, 235, .08);
}
.eyebrow--cyan   { color: var(--cyan); background: rgba(6, 182, 212, .10); }
.eyebrow--blue   { color: var(--blue); background: rgba(37, 99, 235, .10); }
.eyebrow--green  { color: var(--green); background: rgba(16, 185, 129, .10); }
.eyebrow--orange { color: var(--orange); background: rgba(249, 115, 22, .10); }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
  white-space: nowrap;
}
.btn--lg { padding: 17px 28px; font-size: 16px; }
.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 8px 18px rgba(37, 99, 235, .28);
}
.btn--primary:hover { transform: translateY(-1.5px); box-shadow: 0 12px 28px rgba(37, 99, 235, .42); }
.btn--blue {
  background: linear-gradient(135deg, #1d4ed8, #3b82f6);
  box-shadow: 0 8px 18px rgba(29, 78, 216, .28);
}
.btn--ghost {
  color: var(--ink);
  background: #fff;
  border: 1.4px solid var(--border);
}
.btn--ghost:hover { background: var(--tint); border-color: rgba(37, 99, 235, .4); }
.btn--outline-light {
  color: #fff;
  background: rgba(255, 255, 255, .04);
  border: 1.4px solid rgba(255, 255, 255, .30);
}
.btn--outline-light:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .55); }

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
}
.logo__mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
}
.logo__mark img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
}
.hero__brand {
  display: block;
  width: 180px;
  max-width: 60%;
  height: auto;
  margin: 0 0 18px;
}
.logo__tld { color: var(--blue); }
.logo--dark, .logo--dark .logo__text { color: #fff; }
.logo--dark .logo__tld { color: var(--cyan); }

.nav__links { display: flex; gap: 26px; margin-left: 18px; }
.nav__links a {
  color: var(--ink-soft);
  font-size: 14.5px;
  font-weight: 500;
  transition: color .15s ease;
}
.nav__links a:hover { color: var(--blue); }
.nav__cta { margin-left: auto; display: flex; gap: 10px; }
.nav__burger { display: none; margin-left: auto; padding: 8px; }
.nav__burger span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px; margin: 5px 0;
  transition: transform .2s ease, opacity .2s ease;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile { display: none; flex-direction: column; gap: 14px; padding: 8px 20px 22px; border-bottom: 1px solid var(--border); }
.nav__mobile a { color: var(--ink); font-weight: 600; font-size: 17px; padding: 8px 0; }
.nav__mobile .btn { width: 100%; justify-content: center; }

@media (max-width: 900px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: block; }
  .nav__mobile[data-open="true"] { display: flex; }
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(6, 182, 212, .15), transparent 45%),
    radial-gradient(circle at 88% 28%, rgba(37, 99, 235, .14), transparent 50%),
    linear-gradient(180deg, var(--grad-from) 0%, var(--bg) 70%);
  z-index: 0;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 32px 90px;
  z-index: 1;
}
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; padding: 48px 20px 56px; gap: 40px; }
}
.hero__copy { max-width: 580px; }
.hero__copy .eyebrow { margin-bottom: 24px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.cta-row--center { justify-content: center; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px; border-radius: 999px;
  border: 1px solid var(--border); background: #fff;
  color: var(--ink-soft); font-size: 13px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot--orange { background: var(--orange); }
.dot--green  { background: var(--green); }

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero__visual .screenshot { max-width: 460px; width: 100%; }

/* ── Screenshots / device-y cards ─────────────────────────────────────────── */
.screenshot {
  position: relative;
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(180deg, #0C1525, #1B2A4A);
  border: 1.5px solid rgba(8, 15, 28, .9);
  box-shadow:
    0 24px 60px rgba(6, 182, 212, .28),
    0 16px 32px rgba(11, 27, 46, .20);
}
.screenshot img { width: 100%; height: auto; display: block; }
.screenshot figcaption {
  position: absolute; inset: 0;
  display: none;                  /* hidden unless placeholder fallback */
  align-items: center; justify-content: center;
  color: rgba(255, 255, 255, .55);
  font-size: 12px; letter-spacing: 1px; text-transform: uppercase;
  text-align: center; padding: 16px;
}
.screenshot.placeholder { aspect-ratio: 9 / 16; }
.screenshot.placeholder img { display: none; }
.screenshot.placeholder figcaption { display: flex; }
.screenshot--wide.placeholder { aspect-ratio: 16 / 10; }

/* glow tints per accent */
.glow--cyan   .screenshot { box-shadow: 0 24px 60px rgba(6, 182, 212, .28), 0 16px 32px rgba(11, 27, 46, .20); }
.glow--blue   .screenshot { box-shadow: 0 24px 60px rgba(37, 99, 235, .28), 0 16px 32px rgba(11, 27, 46, .20); }
.glow--green  .screenshot { box-shadow: 0 24px 60px rgba(16, 185, 129, .28), 0 16px 32px rgba(11, 27, 46, .20); }
.glow--orange .screenshot { box-shadow: 0 24px 60px rgba(249, 115, 22, .28), 0 16px 32px rgba(11, 27, 46, .20); }
.glow--red    .screenshot { box-shadow: 0 24px 60px rgba(239, 68, 68, .28), 0 16px 32px rgba(11, 27, 46, .20); }

/* decorative blurred orbs behind screenshots */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}
.orb--cyan   { background: rgba(6, 182, 212, .35); width: 220px; height: 220px; top: 40px; left: -40px; }
.orb--blue   { background: rgba(37, 99, 235, .30); width: 260px; height: 260px; bottom: 0;     right: -30px; }
.orb--green  { background: rgba(16, 185, 129, .30); width: 220px; height: 220px; top: 40px; left: -40px; }
.orb--orange { background: rgba(249, 115, 22, .30); width: 220px; height: 220px; bottom: 0;     right: -30px; }
.orb--sm     { width: 160px; height: 160px; }
.hero__visual .screenshot { position: relative; z-index: 1; }

/* ── Sections ─────────────────────────────────────────────────────────────── */
.section { padding: 96px 0; }
.section--alt  { background: var(--bg-alt); }
.section--tint { background: var(--tint); }
@media (max-width: 720px) { .section { padding: 56px 0; } }

.section__head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section__head .eyebrow { margin-bottom: 14px; }
.section__head h2 { margin-bottom: 16px; }
.section__head p { font-size: 16px; }

/* ── Showcase grid ────────────────────────────────────────────────────────── */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.showcase-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
  display: flex; flex-direction: column;
}
.showcase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
/* Tall phone screenshots: use a softer 3:4 frame and contain the image so
   the full screen shows up. The card stays a sensible height on desktop. */
.showcase-card .screenshot {
  aspect-ratio: 3 / 4;
  max-height: 520px;
}
.showcase-card--wide { grid-column: span 3; }
.showcase-card--wide .screenshot {
  aspect-ratio: 16 / 10;
  max-height: none;
}
/* `contain` shows the whole screenshot inside the dark frame; the frame's
   navy background acts as a clean letterbox. Switch to `cover` only if every
   screenshot is pre-cropped to the exact card aspect ratio. */
.showcase-card .screenshot img {
  width: 100%; height: 100%;
  object-fit: contain;
  background: #0C1525;
}
.showcase-card h3 { margin: 18px 0 6px; font-size: 18px; }
.showcase-card p { font-size: 14.5px; }

@media (max-width: 1024px) {
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-card--wide { grid-column: span 2; }
}
@media (max-width: 720px) {
  .showcase-grid { grid-template-columns: 1fr; }
  .showcase-card--wide { grid-column: span 1; }
}

/* ── Benefits ─────────────────────────────────────────────────────────────── */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.benefit {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
}
.benefit__icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.icon--cyan   { background: rgba(6, 182, 212, .12);   color: var(--cyan); }
.icon--blue   { background: rgba(37, 99, 235, .12);   color: var(--blue); }
.icon--green  { background: rgba(16, 185, 129, .12);  color: var(--green); }
.icon--orange { background: rgba(249, 115, 22, .12);  color: var(--orange); }
.icon--red    { background: rgba(239, 68, 68, .12);   color: var(--red); }
.benefit h3 { margin-bottom: 8px; }
.benefit p  { font-size: 14.5px; }

@media (max-width: 1040px) { .benefit-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px)  { .benefit-grid { grid-template-columns: 1fr; } }

/* ── Split sections (For Students / For Teachers) ─────────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
/* Multiple stacked splits in one section (teacher mode showcase) */
.split-stack { display: flex; flex-direction: column; gap: 72px; }
.split-stack .split + .split { padding-top: 72px; border-top: 1px solid var(--line, rgba(11,27,46,0.08)); }
@media (max-width: 720px) {
  .split-stack { gap: 48px; }
  .split-stack .split + .split { padding-top: 48px; }
}
.split--reverse > :first-child { order: 1; }
.split--reverse > :last-child  { order: 0; }
.split__visual {
  position: relative;
  display: flex; justify-content: center;
}
.split__visual .screenshot { max-width: 460px; position: relative; z-index: 1; }
.split__visual .screenshot--wide { max-width: 560px; }
.split__copy h2 { margin: 18px 0 22px; }
.checks { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }
.checks li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--ink-soft);
}
.checks li::before {
  content: "✓";
  flex: 0 0 22px;            /* fixed-width icon, never shrinks */
  display: grid; place-items: center;
  width: 22px; height: 22px;
  margin-top: 2px;
  border-radius: 7px;
  background: rgba(6, 182, 212, .14); color: var(--cyan);
  font-size: 13px; font-weight: 700;
}
.checks--blue li::before   { background: rgba(37, 99, 235, .14); color: var(--blue); }
.checks--green li::before  { background: rgba(16, 185, 129, .14); color: var(--green); }
.checks--orange li::before { background: rgba(249, 115, 22, .14); color: var(--orange); }
.checks li b { color: var(--ink); }

@media (max-width: 960px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
  .split--reverse > :first-child { order: 0; }
  .split--reverse > :last-child  { order: 1; }
}

/* ── Quotes / testimonials ────────────────────────────────────────────────── */
.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.quote {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.quote::before {
  content: "“"; position: absolute; top: 12px; left: 20px;
  font-size: 56px; line-height: 1; color: var(--cyan); opacity: .25;
  font-family: Georgia, serif;
}
.quote p { color: var(--ink); font-size: 16px; line-height: 1.5; margin: 12px 0 18px; }
.quote cite {
  font-style: normal;
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--ink-dim);
  font-size: 13px; font-weight: 600;
}
.quote cite::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan);
}
.quote--blue::before, .quote--blue cite::before    { color: var(--blue); background-color: var(--blue); }
.quote--green::before, .quote--green cite::before  { color: var(--green); background-color: var(--green); }
.quote--orange::before, .quote--orange cite::before{ color: var(--orange); background-color: var(--orange); }

@media (max-width: 1024px) { .quote-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px)  { .quote-grid { grid-template-columns: 1fr; } }

/* ── Pricing ──────────────────────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 880px; margin: 0 auto;
}
.plan {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.plan--highlight {
  background: #F6FAFF;
  border: 1.6px solid rgba(37, 99, 235, .5);
  box-shadow: 0 24px 50px rgba(37, 99, 235, .16);
}
.plan header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.plan h3 { font-size: 18px; display: inline-flex; align-items: center; gap: 10px; }
.tag {
  font-size: 10px; letter-spacing: 1.2px; font-weight: 700;
  padding: 4px 8px; border-radius: 999px;
  background: rgba(37, 99, 235, .12); color: var(--blue);
}
.plan__tagline { font-size: 14px; margin-bottom: 22px; }
.plan__price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 22px; }
.price { font-size: 34px; font-weight: 800; letter-spacing: -.8px; color: var(--ink); }
.price__caption { color: var(--ink-dim); font-size: 13px; }
.plan__bullets { display: flex; flex-direction: column; gap: 10px; margin-bottom: 22px; }
.plan__bullets li {
  display: grid; grid-template-columns: 22px 1fr; align-items: center;
  font-size: 14.5px; color: var(--ink-soft);
}
.plan__bullets li::before {
  content: "✓"; color: var(--green); font-weight: 800;
}
.plan .btn { width: 100%; justify-content: center; }

@media (max-width: 720px) { .pricing-grid { grid-template-columns: 1fr; } }

/* ── Final CTA ────────────────────────────────────────────────────────────── */
.final-cta {
  padding: clamp(40px, 6vw, 64px) clamp(24px, 6vw, 56px);
  border-radius: 24px;
  background: linear-gradient(135deg, #0B1B2E, #14315A 55%, #1E3A8A);
  color: #fff;
  text-align: center;
  box-shadow: 0 24px 60px rgba(37, 99, 235, .30);
}
.final-cta h2 { color: #fff; margin-bottom: 18px; }
.final-cta p  { color: rgba(255, 255, 255, .78); font-size: clamp(14.5px, 1.6vw, 16px); margin-bottom: 28px; }

/* ── Footer ───────────────────────────────────────────────────────────────── */
.footer { background: #0B1426; color: rgba(255, 255, 255, .78); padding: 56px 0 24px; }
.footer__grid {
  display: grid;
  grid-template-columns: 2.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer__brand p { color: rgba(255, 255, 255, .65); font-size: 13.5px; max-width: 320px; margin-top: 14px; }
.footer__col h4 {
  color: rgba(255, 255, 255, .45);
  font-size: 12.5px; letter-spacing: 2.2px; text-transform: uppercase;
  font-weight: 700; margin-bottom: 14px;
}
.footer__col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, .78);
  padding: 5px 0;
  transition: color .15s ease;
}
.footer__col a:hover { color: #fff; }

.footer__bottom {
  margin-top: 32px; padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 12.5px; color: rgba(255, 255, 255, .55);
}

@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .footer__bottom { flex-direction: column; gap: 6px; }
}

/* ── Legal pages (privacy / terms) ───────────────────────────────────────── */
.legal {
  padding: 64px 0 96px;
  background: var(--bg);
}
.legal__container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 32px;
}
.legal h1 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.8px;
  margin-bottom: 8px;
}
.legal__meta {
  color: var(--ink-dim);
  font-size: 13.5px;
  margin-bottom: 36px;
  display: flex; flex-wrap: wrap; gap: 18px;
}
.legal__intro {
  font-size: 17px;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  border-radius: 12px;
  padding: 18px 22px;
  margin-bottom: 36px;
  line-height: 1.55;
}
.legal h2 {
  font-size: 22px;
  margin: 40px 0 10px;
  letter-spacing: -0.3px;
}
.legal h3 {
  font-size: 16.5px;
  margin: 22px 0 6px;
  color: var(--ink);
}
.legal p,
.legal li {
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.65;
}
.legal p { margin: 0 0 14px; }
.legal ul { list-style: disc; padding-left: 22px; margin: 0 0 14px; display: block; }
.legal ul li { margin-bottom: 6px; }
.legal a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.legal a:hover { color: #1d4ed8; }
.legal__toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  margin-bottom: 36px;
}
.legal__toc h4 {
  font-size: 12px; letter-spacing: 2px; color: var(--ink-dim);
  text-transform: uppercase; font-weight: 700; margin-bottom: 10px;
}
.legal__toc ol { padding-left: 22px; margin: 0; }
.legal__toc ol li {
  font-size: 14.5px; margin-bottom: 4px; color: var(--ink-soft);
}

/* Simplified header used on legal pages */
.legal-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.legal-nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 32px;
  max-width: var(--container); margin: 0 auto;
}
.legal-nav__back {
  font-size: 14px; color: var(--ink-soft); font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.legal-nav__back:hover { color: var(--blue); }
@media (max-width: 720px) {
  .legal-nav__inner { padding: 12px 18px; }
  .legal__container { padding: 0 18px; }
  .legal { padding: 40px 0 64px; }
}

/* ── Pricing card tiers (Free + Premium stacked inside one card) ─────────── */
.plan__tier {
  padding: 18px 0;
  border-top: 1px solid var(--border);
}
.plan__tier:first-of-type { border-top: 1px solid var(--border); }
.plan__tier--accent {
  background: linear-gradient(180deg, rgba(6, 182, 212, .06), rgba(37, 99, 235, .04));
  border-radius: 14px;
  padding: 18px 18px 16px;
  margin: 0 -4px 4px;
  border-top: 1px solid rgba(37, 99, 235, .18);
}
.plan__tier-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 12px;
}
.plan__tier-name {
  font-weight: 700; font-size: 16px; color: var(--ink);
  letter-spacing: -0.2px;
}
.plan__tier-price {
  font-weight: 700; font-size: 18px; color: var(--ink);
  white-space: nowrap;
}
.plan__tier-period {
  font-weight: 500; font-size: 13px; color: var(--ink-dim);
}
.plan__plus {
  color: var(--blue); font-weight: 800;
}
.plan__tier .plan__bullets { margin-bottom: 0; }
.plan > .btn { margin-top: 20px; }

/* ── Tutor callout (inside For Students) ─────────────────────────────────── */
.tutor-callout {
  background: linear-gradient(135deg, rgba(6, 182, 212, .08), rgba(37, 99, 235, .06));
  border: 1px solid rgba(37, 99, 235, .18);
  border-left: 4px solid var(--cyan);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 22px 0 26px;
}
.tutor-callout__eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  letter-spacing: 2px; color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.tutor-callout h3 {
  font-size: 19px; line-height: 1.25;
  letter-spacing: -0.3px; margin-bottom: 8px;
  color: var(--ink);
}
.tutor-callout p {
  font-size: 15px; line-height: 1.6;
  color: var(--ink-soft); margin: 0;
}
.tutor-callout em {
  font-style: italic; color: var(--ink);
  font-weight: 600;
}