/* AccTrain Academy — main stylesheet.
   Design tokens are also declared in critical.css (inlined); repeated here so
   this file is self-sufficient if the critical block is ever absent.
   Placeholder design system — refined in Phase 1 (brand sign-off). */

:root {
  --ink: #0f1b2d;
  --ink-2: #1b2a41;
  --muted: #5b6b7f;
  --line: #e4e9ef;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --brand: #14467a;
  --radius: 12px;
  --radius-sm: 8px;
  --container: 1140px;
  --gap: clamp(1rem, 2.5vw, 1.75rem);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --shadow: 0 1px 2px rgba(15, 27, 45, .04), 0 8px 24px rgba(15, 27, 45, .06);
}

/* Self-hosted variable font — activated only if the file is shipped + preloaded. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-var.woff2") format("woff2");
}

/* ---------- Base typography ---------- */
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -.01em; color: var(--ink); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 .75rem; }
h3 { font-size: 1.25rem; margin: 0 0 .5rem; }
p { margin: 0 0 1rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Layout primitives ---------- */
.section { padding: clamp(2.5rem, 5vw, 4.5rem) 0; }
.section--muted { background: var(--bg-soft); }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: clamp(1.25rem, 3vw, 2rem); flex-wrap: wrap; }
.section__title { margin: 0; }
.section__link { font-weight: 600; text-decoration: none; white-space: nowrap; }
.section__link:hover { text-decoration: underline; }

.grid { display: grid; gap: var(--gap); }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid--two { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }

/* Front-page pillar cards */
.pillar-card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.5rem, 3vw, 2.25rem); box-shadow: var(--shadow); }
.pillar-card__eyebrow { text-transform: uppercase; letter-spacing: .07em; font-size: .76rem; font-weight: 700; color: var(--brand); margin: 0 0 .5rem; }
.pillar-card__title { margin: 0 0 .6rem; font-size: clamp(1.3rem, 2.4vw, 1.6rem); }
.pillar-card p { color: var(--muted); margin: 0 0 1.25rem; }

.section__lead { color: var(--muted); max-width: 65ch; margin: 0 0 1.25rem; font-size: 1.05rem; }
.section__cta { margin: 1.5rem 0 0; }
.chips--lg { gap: .55rem; }
.chips--lg .chip { font-size: .9rem; padding: .45rem 1rem; }
.post-grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.page-head { padding: clamp(1.5rem, 4vw, 2.75rem) 0 1.25rem; }
.page-head__title { font-size: clamp(1.75rem, 4vw, 2.75rem); margin: 0 0 .5rem; }
.page-head__desc { color: var(--muted); max-width: 65ch; margin: 0; }

.empty { color: var(--muted); padding: 2rem 0; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { padding: 1rem 0 0; }
.breadcrumbs__list { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; font-size: .85rem; color: var(--muted); }
.breadcrumbs__item + .breadcrumbs__item::before { content: "/"; margin-right: .4rem; color: var(--line); }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--brand); }
.breadcrumbs [aria-current="page"] { color: var(--ink); }

/* ---------- Cards ---------- */
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #d3dce6; }
.card__media { display: block; aspect-ratio: 3/2; background: var(--bg-soft); overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__media-fallback { display: block; width: 100%; height: 100%; background: linear-gradient(135deg, var(--bg-soft), #eef2f7); }
.card__body { padding: 1.1rem 1.15rem 1.25rem; display: flex; flex-direction: column; gap: .55rem; flex: 1; }
.card__title { font-size: 1.12rem; margin: 0; }
.card__title a { color: var(--ink); text-decoration: none; }
.card__title a:hover { color: var(--brand); }
.card__excerpt { color: var(--muted); font-size: .94rem; margin: 0; }
.card__byline, .card__tagline { color: var(--muted); font-size: .88rem; margin: 0; }
.card__meta { list-style: none; margin: auto 0 0; padding: .35rem 0 0; display: flex; flex-wrap: wrap; gap: .35rem .9rem; font-size: .85rem; color: var(--ink-2); }
.card__meta-label { color: var(--muted); }
.card__badge { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 100px; padding: .15rem .6rem; font-size: .78rem; font-weight: 600; color: var(--brand); }

/* Tutor card avatar */
.card--tutor { flex-direction: row; align-items: flex-start; gap: 0; }
.card--tutor .card__avatar { flex: 0 0 96px; aspect-ratio: 1; margin: 1.1rem 0 1.1rem 1.1rem; border-radius: 50%; overflow: hidden; background: var(--bg-soft); }
.card--tutor .card__avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-initials { display: grid; place-items: center; width: 100%; height: 100%; color: #fff; font-weight: 700; letter-spacing: .02em; line-height: 1; }
.card--tutor .avatar-initials { font-size: 1.9rem; }
.tutor-head__avatar .avatar-initials { font-size: 2.5rem; }

/* ---------- Chips ---------- */
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; }
.chip { display: inline-block; font-size: .78rem; font-weight: 600; padding: .25rem .65rem; border-radius: 100px; background: var(--bg-soft); border: 1px solid var(--line); color: var(--ink-2); text-decoration: none; }
a.chip:hover, .chip.is-active { background: var(--brand); color: #fff; border-color: var(--brand); }
.filter-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0 0 1.75rem; }

/* ---------- Entry (pages / posts) ---------- */
.entry__head { padding: 1.25rem 0 1rem; }
.entry__title { font-size: clamp(1.75rem, 4vw, 2.75rem); margin: .25rem 0; }
.entry__byline { color: var(--muted); font-size: .9rem; margin: 0; }
.entry__media { margin: 0 0 1.75rem; }
.entry__media img { border-radius: var(--radius); width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.entry__content { font-size: 1.05rem; }
.entry__content :is(h2, h3) { margin-top: 2rem; }
.entry__content img { border-radius: var(--radius-sm); }
.entry__content ul, .entry__content ol { padding-left: 1.25rem; }
.entry__footer { margin-top: 2rem; }

/* ---------- Course / tutor single layouts ---------- */
.course-layout, .tutor-layout { display: grid; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; padding-bottom: 3rem; }
@media (min-width: 920px) {
  .course-layout, .tutor-layout { grid-template-columns: minmax(0, 1fr) 320px; }
  .course-aside, .tutor-aside { position: sticky; top: 90px; }
}
.fact-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; background: var(--bg); box-shadow: var(--shadow); }
.fact-card__title { font-size: 1.05rem; margin: 0 0 .75rem; }
.fact-list { display: grid; grid-template-columns: auto 1fr; gap: .4rem .9rem; margin: 0 0 1.1rem; font-size: .92rem; }
.fact-list dt { color: var(--muted); }
.fact-list dd { margin: 0; font-weight: 600; }
.fact-card__levels { font-size: .9rem; color: var(--ink-2); }

.ticklist { list-style: none; padding: 0; margin: 0; display: grid; gap: .55rem; }
.ticklist li { padding-left: 1.75rem; position: relative; }
.ticklist li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #fff; background: var(--brand); width: 1.2rem; height: 1.2rem; border-radius: 50%; font-size: .75rem; display: grid; place-items: center; }
.course-outcomes, .tutor-quals { margin: 2rem 0; }

.tutor-head { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; padding: 1.25rem 0; }
.tutor-head__avatar { flex: 0 0 120px; aspect-ratio: 1; border-radius: 50%; overflow: hidden; background: var(--bg-soft); }
.tutor-head__avatar img { width: 100%; height: 100%; object-fit: cover; }
.tutor-head__tagline { color: var(--muted); margin: .25rem 0 .75rem; }

/* ---------- Directory ---------- */
.directory { display: grid; gap: var(--gap); padding-bottom: 3rem; }
@media (min-width: 920px) { .directory { grid-template-columns: 260px minmax(0, 1fr); align-items: start; } .directory__filters { position: sticky; top: 90px; } }
.tutor-filters { display: grid; gap: .9rem; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; background: var(--bg-soft); }
.tutor-filters__field { display: grid; gap: .3rem; }
.tutor-filters label { font-size: .82rem; font-weight: 600; color: var(--ink-2); }
.tutor-filters select { width: 100%; padding: .55rem .6rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; font: inherit; }
.tutor-filters__actions { display: flex; gap: .5rem; }
.directory__count { color: var(--muted); font-size: .9rem; margin: 0 0 1rem; }

/* ---------- Directory taxonomy landing ---------- */
.landing-related { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .6rem; margin: 0 0 1.75rem; }
.landing-related__label { font-size: .82rem; font-weight: 600; color: var(--ink-2); }
.landing-related__list { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; }
.landing-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin: 2.5rem 0 3rem; padding: 1.5rem 1.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-soft); }
.landing-cta p { margin: 0; color: var(--ink-2); max-width: 60ch; }
.directory__results .empty .btn { margin-top: .5rem; }

/* ---------- Heritage ---------- */
.heritage { background: var(--ink); color: #e8eef6; }
.heritage .section__title { color: #fff; }
.heritage p { color: #b7c4d4; max-width: 60ch; }
.heritage .btn--ghost { color: #fff; border-color: rgba(255,255,255,.35); }
.heritage .btn--ghost:hover { border-color: #fff; }

/* ---------- Enquiry form ---------- */
.enquiry { margin: 2.5rem 0; border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.25rem, 3vw, 2rem); background: var(--bg-soft); }
.enquiry--compact { padding: 1.25rem; }
.enquiry__heading { margin: 0 0 1rem; }
.enquiry__form { display: grid; gap: 1rem; max-width: 620px; }
.field { display: grid; gap: .35rem; }
.field-row { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 540px) { .field-row { grid-template-columns: 1fr; } }
.field label { font-weight: 600; font-size: .9rem; }
.field input, .field select, .field textarea { width: 100%; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: var(--radius-sm); font: inherit; background: #fff; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); }
.req { color: #c0392b; }
.enquiry__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.enquiry__privacy { color: var(--muted); font-size: .82rem; margin: 0; }

/* Notices */
.notice { border-radius: var(--radius-sm); padding: .85rem 1rem; margin: 0 0 1rem; font-size: .95rem; border: 1px solid; }
.notice--ok { background: #ecfdf3; border-color: #abefc6; color: #027a48; }
.notice--warn { background: #fff7ed; border-color: #fed7aa; color: #b54708; }

/* ---------- Search results ---------- */
.search-results { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.5rem; }
.search-result__type { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--brand); margin: 0 0 .25rem; }
.search-result__title { margin: 0 0 .25rem; }
.search-result__title a { color: var(--ink); text-decoration: none; }
.search-result__excerpt { color: var(--muted); margin: 0; }

/* ---------- 404 ---------- */
.error-404 { text-align: center; padding: clamp(3rem, 8vw, 6rem) 0; }
.error-404__code { font-size: clamp(3rem, 12vw, 6rem); font-weight: 800; color: var(--line); margin: 0; line-height: 1; }
.error-404__title { margin: .5rem 0; }
.error-404__lead { color: var(--muted); max-width: 50ch; margin: 0 auto 1.5rem; }
.error-404 form { max-width: 420px; margin: 0 auto 1.25rem; }

/* ---------- Pagination ---------- */
.pagination { margin: 2.5rem 0; display: flex; justify-content: center; }
.pagination .nav-links, .pagination.page-numbers, .pagination { display: flex; flex-wrap: wrap; gap: .4rem; }
.page-numbers { display: inline-grid; place-items: center; min-width: 2.4rem; height: 2.4rem; padding: 0 .6rem; border: 1px solid var(--line); border-radius: var(--radius-sm); text-decoration: none; color: var(--ink); }
.page-numbers.current { background: var(--brand); color: #fff; border-color: var(--brand); }
.page-numbers:hover:not(.current) { border-color: var(--ink); }

/* ---------- Post navigation ---------- */
.post-nav .nav-links { display: flex; justify-content: space-between; gap: 1rem; margin: 2.5rem 0; flex-wrap: wrap; }
.post-nav a { text-decoration: none; }
.nav-subtitle { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.nav-title { font-weight: 600; color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #c7d2e0; margin-top: 4rem; }
.site-footer a { color: #c7d2e0; text-decoration: none; }
.site-footer a:hover { color: #fff; }

/* 4-column grid */
.site-footer__main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem 3rem;
  padding-block: clamp(3rem, 5vw, 4.5rem) 2.5rem;
}
@media (max-width: 860px) {
  .site-footer__main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .site-footer__main { grid-template-columns: 1fr; }
}

/* Brand column */
.site-footer__logo-wrap { display: inline-flex; background: #fff; border-radius: var(--radius-sm); padding: 8px 12px; line-height: 0; text-decoration: none; margin-bottom: 1rem; }
.site-footer__logo { height: 52px; width: auto; display: block; }
.site-footer__about { color: #9fb0c4; font-size: .92rem; line-height: 1.65; margin: 0 0 .85rem; }
.site-footer__contact { font-size: .88rem; color: #9fb0c4; margin: 0; }
.site-footer__contact a { color: #c7d2e0; }
.site-footer__contact a:hover { color: #fff; }

/* Link columns */
.site-footer__col-title { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: #fff; margin: 0 0 .9rem; }
.site-footer__col-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.site-footer__col-list a { font-size: .9rem; }

/* Bottom bar */
.site-footer__bar { border-top: 1px solid rgba(255,255,255,.1); }
.site-footer__bar-inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-block: 1.25rem; font-size: .83rem; }
.site-footer__copy { margin: 0; color: #9fb0c4; }
.legal-menu { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; }
.legal-menu a { color: #9fb0c4; font-size: .83rem; }
.legal-menu a:hover { color: #fff; }

/* ---------- Dropdown submenus ---------- */
.nav .menu-item-has-children { position: relative; }
.nav .menu-item-has-children > a { display: inline-flex; align-items: center; gap: .35rem; }
.nav .menu-item-has-children > a::after {
  content: ""; width: .42em; height: .42em; margin-top: -.18em;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg); transition: transform .15s ease;
}
.nav .sub-menu {
  list-style: none; margin: 0; padding: .4rem 0;
  position: absolute; top: calc(100% + .35rem); left: 0; min-width: 230px;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); z-index: 60;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .15s ease, transform .15s ease, visibility .15s;
}
.nav .menu-item-has-children:hover > .sub-menu,
.nav .menu-item-has-children:focus-within > .sub-menu,
.nav .menu-item-has-children.is-open > .sub-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav .menu-item-has-children:hover > a::after,
.nav .menu-item-has-children.is-open > a::after { transform: rotate(-135deg); }
.nav .sub-menu li { margin: 0; }
.nav .sub-menu a { display: block; padding: .55rem 1.15rem; white-space: nowrap; color: var(--ink); font-weight: 500; }
.nav .sub-menu a:hover, .nav .sub-menu a:focus { background: var(--bg-soft); color: var(--brand); }
.submenu-toggle { display: none; }

/* ---------- Mobile nav ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: inline-grid; place-items: center; width: 44px; height: 44px; background: transparent; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; }
  .nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: transform .2s ease, opacity .2s ease; }
  .nav-toggle__bars::before { position: absolute; top: -6px; }
  .nav-toggle__bars::after { position: absolute; top: 6px; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }
  .nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--bg); border-bottom: 1px solid var(--line); padding: 1rem; display: none; }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; gap: .25rem; }
  .nav__list a { display: block; padding: .6rem .25rem; }

  /* Submenus collapse into accordions; caret button does the toggling. */
  .nav .menu-item-has-children { display: flex; flex-wrap: wrap; align-items: center; }
  .nav .menu-item-has-children > a { flex: 1; }
  .nav .menu-item-has-children > a::after { display: none; }
  .submenu-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; background: transparent; border: 0; cursor: pointer; color: var(--ink);
  }
  .submenu-toggle::after {
    content: ""; width: .5em; height: .5em; border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor; transform: rotate(45deg); transition: transform .15s ease;
  }
  .menu-item-has-children.is-open > .submenu-toggle::after { transform: rotate(-135deg); }
  .nav .sub-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; padding: .1rem 0 .5rem 1rem; width: 100%; display: none;
  }
  .nav .menu-item-has-children.is-open > .sub-menu { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* ---------------------------------------------------------------------------
 * Floating WhatsApp pill — "WhatsApp us" button fixed bottom-right on every
 * page (Insectout-style): green pill, white icon disc + label.
 * ------------------------------------------------------------------------- */
.floating-whatsapp {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 999;
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .5rem 1.15rem .5rem .5rem; border-radius: 100px;
  background: #25d366; color: #fff;
  text-decoration: none; font-weight: 700; font-size: 1rem; line-height: 1;
  box-shadow: 0 8px 24px rgba(15, 27, 45, .28);
  transition: transform .15s ease, box-shadow .15s ease;
}
.floating-whatsapp:hover, .floating-whatsapp:focus-visible {
  color: #fff; transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(15, 27, 45, .36);
}
.floating-whatsapp__icon {
  flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%; background: #fff;
}
.floating-whatsapp__label { padding-right: .25rem; }
@media (max-width: 640px) {
  /* Collapse to an icon-only disc on small screens. */
  .floating-whatsapp { right: 1rem; bottom: 1rem; gap: 0; padding: .5rem; }
  .floating-whatsapp__label {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  }
}