/* =========================================================================
   MyTutor — Business English Course page
   Built to the "Clear Professional" design guidelines (same system as the
   Nursing / Everyday Conversation pages). Scoped under .bus so it is safe to
   drop into a WordPress Custom HTML block. Tokens / .mt-card / .tag mirror the
   shared spec exactly; if css/main.css is already loaded globally, the inlined
   copies of .mt-card and .tag can be removed.
   ========================================================================= */

@media (min-width: 769px) {
  .business-english-page #wrap { min-width: 0; }
  .business-english-page #container { width: 100%; max-width: none; padding: 0; }
}
.business-english-page .bus { margin-bottom: 0; }

.bus {
  /* --- official core tokens --- */
  --ink: #172033;
  --muted: #657084;
  --line: #DFE5EE;
  --paper: #FFFFFF;
  --canvas: #F4F6FA;
  --navy-950: #031B68;
  --navy-800: #1E2D6E;
  --navy-700: #263A8A;
  --purple-700: #6C4DA4;
  --purple-100: #F1EDFB;
  --teal-600: #158A9A;
  --teal-050: #E8F5F7;
  --gold-500: #C99A2E;
  --radius-sm: 6px;
  --radius-md: 8px;
  --shadow-soft: 0 14px 40px rgba(20, 32, 62, 0.12);
  --shadow-tight: 0 8px 24px rgba(20, 32, 62, 0.10);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;

  color-scheme: light;
  box-sizing: border-box;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.bus *, .bus *::before, .bus *::after { box-sizing: inherit; }
.bus p, .bus h1, .bus h2, .bus h3, .bus h4, .bus ul, .bus ol, .bus figure { margin: 0; padding: 0; }
.bus ul, .bus ol { list-style: none; }
.bus img { max-width: 100%; display: block; }
.bus a { color: inherit; }

/* ---------- shared utilities (mirror of css/main.css) ---------- */
.bus .mt-card {
  display: block; overflow: hidden;
  border: 1px solid rgba(3, 27, 104, 0.12);
  border-radius: var(--radius-md);
  background: var(--paper);
  box-shadow: var(--shadow-tight);
  color: inherit; text-decoration: none;
  transition: box-shadow 0.16s ease, border-color 0.16s ease;
}
.bus .mt-card:hover { border-color: rgba(3, 27, 104, 0.22); box-shadow: 0 12px 28px rgba(20, 32, 62, 0.14); }
.bus .tag {
  display: inline-flex; align-items: center;
  padding: 4px 9px; border: 0; border-radius: 999px;
  background: var(--purple-100); color: var(--navy-800);
  font-size: 10.5px; font-weight: 700; line-height: 1.25; white-space: nowrap;
}

/* ---------- layout primitives ---------- */
.bus-wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.bus-section { padding: 56px 0; }
.bus-section--canvas { background: var(--canvas); }
.bus-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--purple-700); display: inline-flex; align-items: center; gap: 9px; margin-bottom: 12px;
}
.bus-eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--purple-700); display: inline-block; }
.bus-h2 { font-size: 25px; line-height: 1.3; font-weight: 700; color: var(--navy-950); margin-bottom: 14px; }
.bus-lead { color: var(--muted); font-size: 16px; max-width: 64ch; }

/* ---------- buttons ---------- */
.bus-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 700; padding: 13px 24px; border-radius: var(--radius-md);
  text-decoration: none; cursor: pointer; transition: background .16s ease, border-color .16s ease;
}
.bus-btn--primary,
.bus-btn--primary:link,
.bus-btn--primary:visited { background: var(--navy-800); color: #fff; border: 1px solid var(--navy-800); }
.bus-btn--primary:hover { background: var(--navy-950); border-color: var(--navy-950); color: #fff; text-decoration: none; }
.bus-btn--ghost,
.bus-btn--ghost:link,
.bus-btn--ghost:visited { background: transparent; color: var(--navy-800); border: 1.5px solid var(--line); }
.bus-btn--ghost:hover { border-color: var(--navy-800); color: var(--navy-800); text-decoration: none; }
.bus-btn--sm { font-size: 13.5px; padding: 10px 16px; }
.bus-btn--block { width: 100%; }

/* ============================ HERO ============================ */
.bus-hero { background: var(--canvas); padding: 38px 0 46px; }
.bus-hero__eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--purple-700); }
.bus-hero__title { font-size: 28px; line-height: 1.25; font-weight: 700; color: var(--navy-950); margin: 10px 0 14px; }
.bus-hero__lead { color: var(--ink); font-size: 16px; margin-bottom: 12px; max-width: 60ch; }
.bus-hero__sub { color: var(--muted); font-size: 15px; margin-bottom: 8px; max-width: 64ch; }
.bus-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 24px; }
.bus-chip { font-size: 13px; font-weight: 600; padding: 7px 13px; border-radius: 999px; background: var(--paper); border: 1px solid var(--line); color: var(--ink); }
.bus-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ============================ shared content ============================ */
.bus-grid { display: grid; gap: 14px; margin-top: 22px; }

/* who-it's-for check rows */
.bus-scenes { display: grid; gap: 11px; margin-top: 22px; }
.bus-scene {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--paper); border: 1px solid var(--line); border-left: 4px solid var(--navy-700);
  border-radius: var(--radius-md); padding: 14px 17px; font-weight: 600; font-size: 15px;
}
.bus-scene__i { color: var(--teal-600); font-weight: 800; flex: none; }

/* ============================ level cards ============================ */
.bus-level { padding: 24px 22px; display: flex; flex-direction: column; }
.bus-level__h { font-size: 20px; font-weight: 800; color: var(--navy-950); margin-bottom: 8px; }
.bus-level__h span { font-size: 15px; font-weight: 700; color: var(--purple-700); }
.bus-level__guide {
  align-self: flex-start; font-size: 12.5px; font-weight: 700; color: var(--navy-800);
  background: var(--purple-100); padding: 5px 11px; border-radius: 999px; margin-bottom: 14px;
}
.bus-level__b { font-size: 14.5px; color: var(--muted); margin-bottom: 20px; }
.bus-level__cta { margin-top: auto; }

/* ============================ scene course cards ============================ */
.bus-sc { padding: 20px; display: flex; flex-direction: column; height: 100%; }
.bus-sc__h { font-size: 17px; font-weight: 800; color: var(--navy-950); margin-bottom: 8px; }
.bus-sc__h span { font-size: 13px; font-weight: 700; color: var(--purple-700); }
.bus-sc__b { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.bus-sc__link { margin-top: auto; font-size: 13.5px; font-weight: 700; color: var(--navy-800); display: inline-flex; align-items: center; gap: 6px; }
.bus-sc:hover .bus-sc__link { gap: 9px; }
.bus-sc__link::after { content: "→"; transition: transform .16s ease; }

/* ============================ supplementary materials (compact) ============================ */
.bus-suplist { display: grid; gap: 8px; margin-top: 20px; }
@media (min-width: 640px) { .bus-suplist { grid-template-columns: 1fr 1fr; } }
.bus-sup {
  display: flex; align-items: center; gap: 10px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 14px; text-decoration: none; color: inherit;
  font-size: 14px; font-weight: 600;
  transition: border-color .16s ease, background .16s ease;
}
.bus-sup:hover { border-color: rgba(3, 27, 104, 0.22); background: var(--canvas); text-decoration: none; }
.bus-sup__i { color: var(--purple-700); font-weight: 800; flex: none; }
.bus-sup__t { color: var(--navy-800); }
.bus-sup__ext { font-size: 11px; color: var(--teal-600); font-weight: 800; margin-left: auto; }

/* ============================ related courses ============================ */
.bus-rel { padding: 24px 22px; display: flex; flex-direction: column; }
.bus-rel__k { font-size: 11.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--purple-700); margin-bottom: 10px; }
.bus-rel__h { font-size: 18px; font-weight: 700; color: var(--navy-950); margin-bottom: 9px; line-height: 1.4; }
.bus-rel__b { font-size: 14.5px; color: var(--muted); margin-bottom: 20px; }
.bus-rel__cta { margin-top: auto; }

/* ============================ usage / note ============================ */
.bus-usage { display: grid; gap: 14px; margin-top: 22px; }
.bus-usage p { font-size: 15px; color: var(--ink); }

/* ============================ free trial CTA ============================ */
.bus-trial { background: var(--purple-100); text-align: center; }
.bus-trial__h { font-size: 25px; line-height: 1.3; font-weight: 700; color: var(--navy-950); margin-bottom: 8px; }
.bus-trial__sub { font-size: 15px; color: var(--purple-700); font-weight: 600; margin-bottom: 18px; }
.bus-trial__list { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; margin-bottom: 24px; padding: 0; }
.bus-trial__list li { font-size: 14px; color: var(--ink); font-weight: 600; display: inline-flex; align-items: center; gap: 7px; }
.bus-trial__list li::before { content: "✓"; color: var(--teal-600); font-weight: 800; }

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .bus-section { padding: 72px 0; }
  .bus-hero { padding: 48px 0 56px; }
  .bus-hero__title { font-size: 38px; }
  .bus-h2 { font-size: 30px; }
  .bus-trial__h { font-size: 30px; }
  .bus-grid--2 { grid-template-columns: 1fr 1fr; }
  .bus-grid--3 { grid-template-columns: 1fr 1fr 1fr; }
  .bus-scenes { grid-template-columns: 1fr 1fr; }
  .bus-scgrid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 860px) {
  .bus-scgrid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) { .bus * { transition: none !important; } }
.bus :where(a, button):focus-visible { outline: 3px solid var(--navy-700); outline-offset: 2px; border-radius: 6px; }
.bus [id] { scroll-margin-top: 24px; }