/* Student page. Plain CSS scoped to .khs, outside the Tailwind build.
   Light by default; dark mode follows the site toggle (html.dark). */

.khs {
  --bg: #f5f8fc; --bg2: #eef3f9; --surface: #ffffff; --surface2: #f3f6fb;
  --border: #dde5f0; --border2: #c9d5e6;
  --tx: #101a2b; --tx2: #3f4f6b; --tx3: #7a889f;
  --teal: #2ec4a8; --teal2: #1f9e8a; --teal-ink: #0f7d6a; --teal-soft: rgba(46, 196, 168, .14);
  --ok: #1f9e8a; --no: #e46a6a; --no-soft: rgba(228, 106, 106, .1);
  --shadow: 0 30px 60px rgba(16, 26, 43, .12);
  --r: 18px;
  background: var(--bg);
  color: var(--tx);
  font-size: 16px;
  line-height: 1.6;
}
html.dark .khs {
  color-scheme: dark;
  --bg: #0e1626; --bg2: #111b2e; --surface: #16223a; --surface2: #1b2a45;
  --border: #243552; --border2: #2d4266;
  --tx: #eef2f8; --tx2: #b3bfd3; --tx3: #7d8ba5;
  --teal-ink: #7fe6d2; --teal-soft: rgba(46, 196, 168, .12);
  --ok: #2ec4a8;
  --shadow: 0 30px 60px rgba(0, 0, 0, .35);
}
.khs *, .khs *::before, .khs *::after { box-sizing: border-box; }
.khs a { color: inherit; }
.khs :focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 8px; }
.khs .wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.khs h1, .khs h2, .khs h3 { letter-spacing: -.02em; line-height: 1.12; margin: 0; color: var(--tx); }
.khs h1 { font-size: clamp(38px, 5.4vw, 66px); font-weight: 800; }
.khs h2 { font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; text-align: center; }
.khs h3 { font-size: 22px; font-weight: 700; }
.khs .tl { color: var(--teal-ink); }
.khs .lead { font-size: clamp(17px, 1.5vw, 21px); color: var(--tx2); max-width: 60ch; margin: 22px 0 0; }
.khs .sub { color: var(--tx2); font-size: 19px; text-align: center; max-width: 68ch; margin: 14px auto 0; }
.khs section { padding: 96px 0; }
.khs .band { background: var(--bg2); }
@media (max-width: 640px) { .khs section { padding: 64px 0; } .khs .wrap { padding: 0 16px; } }

/* Buttons */
.khs .btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 20px; border-radius: 14px; border: 1px solid var(--border2); background: var(--surface); color: var(--tx); font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; white-space: nowrap; }
.khs .btn.p { background: var(--teal2); border-color: var(--teal2); color: #fff; }
.khs .btn.p:hover { background: var(--teal-ink); border-color: var(--teal-ink); }
html.dark .khs .btn.p:hover { background: var(--teal); border-color: var(--teal); }
.khs .btn.lg { min-height: 58px; padding: 0 28px; font-size: 17px; border-radius: 16px; }
.khs .btn svg { width: 18px; height: 18px; flex: none; }
@media (max-width: 480px) { .khs .btn.lg { white-space: normal; width: 100%; } }

/* Hero */
.khs .hero { padding: 90px 0 70px; }
.khs .hero-g { display: grid; gap: 44px; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 960px) { .khs .hero-g { grid-template-columns: 1.05fr .95fr; } }
.khs .pill { display: inline-flex; align-items: center; gap: 8px; min-height: 34px; padding: 0 14px; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--teal) 45%, var(--border)); background: var(--teal-soft); color: var(--teal-ink); font-weight: 700; font-size: 13.5px; margin-bottom: 22px; }
.khs .pill .d { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }
.khs .cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.khs .fine { margin: 16px 0 0; color: var(--tx3); font-size: 14.5px; }
.khs .fine b { color: var(--tx2); font-weight: 600; }

/* Device stack (abstract illustration) */
.khs .stack { position: relative; height: 460px; }
@media (max-width: 640px) { .khs .stack { height: 360px; } }
.khs .dev { position: absolute; border-radius: 18px; border: 1px solid var(--border2); background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.khs .dev .tb { height: 34px; border-bottom: 1px solid var(--border); background: var(--surface2); display: flex; align-items: center; gap: 6px; padding: 0 12px; }
.khs .dev .tb i { width: 9px; height: 9px; border-radius: 50%; background: var(--border2); }
.khs .dev .body { padding: 14px; }
.khs .line { height: 9px; border-radius: 5px; background: var(--border); margin: 8px 0; }
.khs .line.w1 { width: 70%; } .khs .line.w2 { width: 45%; } .khs .line.w3 { width: 88%; }
.khs .line.t { background: var(--teal-soft); border: 1px solid color-mix(in srgb, var(--teal) 35%, transparent); }
.khs .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.khs .box { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: var(--bg2); }
.khs .box .h { font-size: 11px; font-weight: 700; color: var(--tx3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.khs .tagline { font-size: 12.5px; font-weight: 700; color: var(--tx2); margin-left: 8px; }
.khs .d1 { left: 0; top: 30px; width: min(520px, 78%); height: 340px; }
.khs .d2 { right: 0; top: 0; width: min(280px, 46%); height: 300px; }
.khs .d3 { right: 26px; bottom: 0; width: min(230px, 42%); height: 210px; }

/* Included */
.khs .grid { display: grid; gap: 18px; grid-template-columns: 1fr; margin-top: 50px; }
@media (min-width: 720px) { .khs .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1080px) { .khs .grid.c4 { grid-template-columns: repeat(4, 1fr); } }
.khs .card { border: 1px solid var(--border); border-radius: var(--r); background: var(--surface); padding: 26px 26px 24px; }
.khs .card .ic { width: 48px; height: 48px; border-radius: 13px; background: var(--teal-soft); border: 1px solid color-mix(in srgb, var(--teal) 35%, transparent); display: grid; place-items: center; color: var(--teal-ink); margin-bottom: 18px; }
.khs .card .ic svg { width: 22px; height: 22px; }
.khs .card h3 { font-size: 20px; margin-bottom: 8px; }
.khs .card p { margin: 0; color: var(--tx2); font-size: 15.5px; }
.khs .card ul { margin: 14px 0 0; padding: 0; list-style: none; }
.khs .card li { display: flex; gap: 10px; align-items: flex-start; color: var(--tx2); font-size: 15px; margin: 8px 0; }
.khs .card li svg { width: 18px; height: 18px; flex: none; color: var(--ok); margin-top: 3px; }

/* Steps */
.khs .steps { display: grid; gap: 20px; grid-template-columns: 1fr; margin-top: 56px; }
@media (min-width: 900px) { .khs .steps { grid-template-columns: repeat(3, 1fr); } }
.khs .step { border: 1px solid var(--border); border-radius: 22px; background: var(--surface); padding: 34px 30px; }
.khs .step .n { width: 58px; height: 58px; border-radius: 15px; background: var(--teal2); color: #fff; font-weight: 800; font-size: 26px; display: grid; place-items: center; margin-bottom: 26px; }
.khs .step h3 { font-size: 24px; margin-bottom: 10px; }
.khs .step p { margin: 0; color: var(--tx2); }
.khs .steps-note { text-align: center; color: var(--tx2); font-style: italic; font-size: 19px; margin: 40px 0 0; }

/* Learning */
.khs .split { display: grid; gap: 44px; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 960px) { .khs .split { grid-template-columns: 1fr 1fr; } }
.khs .split h2 { text-align: left; }
.khs .checks { list-style: none; padding: 0; margin: 26px 0 0; }
.khs .checks li { display: flex; gap: 12px; align-items: flex-start; font-size: 18px; color: var(--tx); margin: 12px 0; }
.khs .checks li svg { width: 20px; height: 20px; color: var(--teal); flex: none; margin-top: 4px; }
.khs .shot { border-radius: 24px; border: 1px solid var(--border2); background: var(--surface); padding: 22px; box-shadow: var(--shadow); }
.khs .shot .h { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.khs .shot .h b { font-size: 14px; }
.khs .shot .h span { font-size: 12px; color: var(--tx3); }
.khs .mods { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }
.khs .mod { border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: var(--bg2); }
.khs .mod .t { font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.khs .bar { height: 6px; border-radius: 4px; background: var(--border); overflow: hidden; }
.khs .bar i { display: block; height: 100%; background: var(--teal); border-radius: 4px; }
.khs .mod small { display: block; color: var(--tx3); font-size: 11.5px; margin-top: 6px; }

/* Student vs practitioner */
.khs .cmp-scroll { overflow-x: auto; margin-top: 44px; }
.khs .cmp { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; background: var(--surface); }
.khs .cmp th, .khs .cmp td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--border); font-size: 15.5px; }
.khs .cmp th { background: var(--surface2); font-weight: 800; font-size: 14px; text-transform: uppercase; letter-spacing: .05em; color: var(--tx3); }
.khs .cmp th.hl { color: var(--teal-ink); }
.khs .cmp tr:last-child td { border-bottom: 0; }
.khs .cmp td:first-child { font-weight: 600; }
.khs .cmp .c { text-align: center; }
.khs .y { color: var(--ok); font-weight: 800; }
.khs .m { color: var(--tx3); font-weight: 700; }
.khs .cmp .price { font-size: 22px; font-weight: 800; color: var(--tx); }
.khs .cmp .price small { font-size: 13px; color: var(--tx3); font-weight: 600; }
@media (max-width: 640px) { .khs .cmp th, .khs .cmp td { padding: 12px 12px; font-size: 14px; } }

/* FAQ */
.khs .faq { display: grid; gap: 18px; grid-template-columns: 1fr; margin-top: 40px; }
@media (min-width: 900px) { .khs .faq { grid-template-columns: 1fr 1fr; } }
.khs .q { border-radius: 22px; background: var(--surface); border: 1px solid var(--border); padding: 28px; }
.khs .q h3 { font-size: 19px; color: var(--teal-ink); margin-bottom: 10px; }
.khs .q p { margin: 0; color: var(--tx); font-size: 16.5px; }
.khs .faq-title { text-align: left; font-size: 34px; }

/* Final call to action */
.khs .final { text-align: center; padding: 100px 0; }
.khs .final h2 { font-size: clamp(30px, 4vw, 50px); }
.khs .final .cta-row { justify-content: center; }
.khs .final .fine { text-align: center; }
.khs .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }