/* The Learning Desk: shared stylesheet
   Layout: single centred column (max 68rem), full-width tinted bands to separate sections,
   two-up "doorway" cards that stack on phones. Navy carries text and actions; orange is accent only. */

@font-face {
  font-family: "Work Sans";
  src: url("fonts/work-sans-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Work Sans";
  src: url("fonts/work-sans-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Brand */
  --navy: #1C6EA4;        /* logo blue: headings, links, primary buttons (5.3:1 on white) */
  --navy-deep: #13507A;   /* hover and pressed states */
  --orange: #F5821F;      /* logo orange: accents only, never text */
  --focus: #B85A00;       /* darker orange for focus rings (meets 3:1 on white) */
  /* Neutrals, biased slightly towards the navy */
  --ink: #17222D;
  --muted: #475766;
  --bg: #FFFFFF;
  --tint: #EEF4F9;
  --line: #D3DFE9;
  --on-navy: #FFFFFF;
  --error: #B42318;

  --font: "Work Sans", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --step-0: 1.125rem;     /* 18px body */
  --step-1: 1.375rem;
  --step-2: 1.75rem;
  --step-3: clamp(2rem, 1.4rem + 2.6vw, 3rem);
  --wrap: 68rem;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --navy: #8CC2EA; --navy-deep: #B5D8F2; --orange: #F79A4A; --focus: #F79A4A;
    --ink: #E6EDF3; --muted: #A9B8C6; --bg: #0F1821; --tint: #16232F; --line: #2A3B4B;
    --on-navy: #0F1821; --error: #FF9C8F;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --navy: #8CC2EA; --navy-deep: #B5D8F2; --orange: #F79A4A; --focus: #F79A4A;
  --ink: #E6EDF3; --muted: #A9B8C6; --bg: #0F1821; --tint: #16232F; --line: #2A3B4B;
  --on-navy: #0F1821; --error: #FF9C8F;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; }

h1, h2, h3 { font-weight: 600; line-height: 1.2; text-wrap: balance; margin: 0; color: var(--ink); }
h1 { font-size: var(--step-3); letter-spacing: -0.01em; }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }
p { margin: 0; max-width: 65ch; }

a { color: var(--navy); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--navy-deep); text-decoration-color: var(--orange); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 3px; }

/* Layout */
.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.band { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.band--tint { background: var(--tint); }
.stack { display: grid; gap: 1rem; }
.stack--lg { display: grid; gap: 2rem; }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 20;
  background: var(--navy); color: var(--on-navy); padding: 0.6rem 1rem; border-radius: 6px;
}
.skip-link:focus { top: 1rem; color: var(--on-navy); }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 0.9rem; flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-weight: 600; font-size: 1.2rem; color: var(--ink); text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand img { display: block; height: 48px; width: auto; }
/* The logo's own blue is too dark on a dark page, so it sits on a light plate in dark mode */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand img { background: #FFFFFF; border-radius: 6px; padding: 4px 8px; height: 48px; box-sizing: content-box; }
}
:root[data-theme="dark"] .brand img { background: #FFFFFF; border-radius: 6px; padding: 4px 8px; box-sizing: content-box; }
@media (max-width: 400px) { .brand img { height: 40px; } }

.menu-toggle {
  display: none; font: inherit; font-weight: 600; font-size: 1rem;
  background: none; color: var(--navy); border: 2px solid var(--navy);
  border-radius: 8px; padding: 0.4rem 0.9rem; min-height: 44px; cursor: pointer;
}
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
.site-nav a {
  display: inline-block; padding-block: 0.5rem; font-size: 1rem; font-weight: 600;
  color: var(--ink); text-decoration: none; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--navy); border-bottom-color: var(--orange); }
.site-nav a[aria-current="page"] { color: var(--navy); border-bottom-color: var(--orange); }

@media (max-width: 760px) {
  .js .menu-toggle { display: inline-block; }
  .js .site-nav { display: none; width: 100%; }
  .js .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; padding-bottom: 0.5rem; }
  .site-nav li { border-top: 1px solid var(--line); }
  .site-nav a { display: block; padding-block: 0.85rem; border-bottom: 0; }
}

/* Hero */
.hero { padding-block: clamp(2.5rem, 7vw, 5rem) clamp(2rem, 5vw, 3.5rem); }
.hero .stack { gap: 1.25rem; }
.eyebrow {
  font-size: 0.875rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); display: flex; align-items: center; gap: 0.6rem;
}
.eyebrow::before { content: ""; width: 28px; height: 3px; background: var(--orange); border-radius: 2px; }
.lead { font-size: 1.25rem; color: var(--muted); }

/* Doorway cards */
.doors { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); gap: 1.5rem; }
.door {
  display: grid; gap: 0.9rem; align-content: start;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.25rem); border-top: 4px solid var(--navy);
  min-width: 0;
}
.doors--three { grid-template-columns: 1fr; }
@media (min-width: 960px) { .doors--three { grid-template-columns: repeat(3, 1fr); } }
.door--ielts { border-top-color: var(--orange); }
.door .who { font-size: 0.95rem; font-weight: 600; color: var(--muted); }
.door ul { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.3rem; color: var(--ink); }
.door .btn { justify-self: start; margin-top: 0.4rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 48px; padding: 0.75rem 1.4rem; border-radius: 8px;
  background: var(--navy); color: var(--on-navy); font-weight: 600; font-size: 1.05rem;
  text-decoration: none; border: 2px solid var(--navy);
}
.btn:hover { background: var(--navy-deep); border-color: var(--navy-deep); color: var(--on-navy); }
.btn--ghost { background: transparent; color: var(--navy); }
.btn--ghost:hover { background: var(--tint); color: var(--navy-deep); }

/* Points */
.points { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: 1.75rem 2rem; margin: 0; padding: 0; list-style: none; }
.points li { display: grid; gap: 0.4rem; padding-top: 1rem; border-top: 2px solid var(--line); min-width: 0; }
.points h3 { font-size: 1.15rem; }
.points p { color: var(--muted); }

.facts { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; }
.facts li { display: flex; align-items: center; gap: 0.6rem; font-weight: 600; }
.facts li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); flex: none; }

/* Closing contact strip */
.reach { display: grid; gap: 1.25rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; align-items: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem; font-size: 1rem; color: var(--muted); }
.site-footer .wrap { display: grid; gap: 1.5rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: 1.5rem 2rem; }
.footer-grid h2 { font-size: 1rem; margin-bottom: 0.5rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.35rem; }
.footer-grid p { color: var(--muted); }
.legal { font-size: 0.9rem; border-top: 1px solid var(--line); padding-top: 1.25rem; }

/* IELTS page pieces */
.rating { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-weight: 600; color: var(--ink); font-size: 1rem; }
.stars { color: var(--orange); letter-spacing: 0.1em; font-size: 1.15rem; }
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr)); gap: 2rem 3rem; align-items: start; }
.split > * { min-width: 0; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.checks li { position: relative; padding-left: 1.6rem; }
.checks li::before { content: ""; position: absolute; left: 0.15rem; top: 0.45em; width: 0.5rem; height: 0.85rem; border: solid var(--navy); border-width: 0 3px 3px 0; transform: rotate(45deg); }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1.75rem 2rem; }
.steps li { counter-increment: step; display: grid; gap: 0.4rem; min-width: 0; }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 2.4rem; height: 2.4rem;
  border-radius: 50%; background: var(--navy); color: var(--on-navy); font-weight: 600; margin-bottom: 0.4rem;
}
.steps h3 { font-size: 1.15rem; }
.steps p { color: var(--muted); }

.quotes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); gap: 1.5rem; }
.quote { margin: 0; display: grid; gap: 0.75rem; align-content: start; padding-left: 1.25rem; border-left: 3px solid var(--orange); min-width: 0; }
.quote blockquote { margin: 0; }
.quote figcaption { font-size: 1rem; font-weight: 600; color: var(--muted); }

/* Enquiry form */
.enquiry { display: grid; gap: 1.25rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.25rem, 3vw, 2rem); min-width: 0; }
.field { display: grid; gap: 0.35rem; }
.field label { font-weight: 600; }
.field input {
  font: inherit; font-size: 1.05rem; width: 100%; min-height: 48px; padding: 0.6rem 0.8rem;
  color: var(--ink); background: var(--bg); border: 2px solid var(--muted); border-radius: 8px;
}
.field input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-color: var(--navy); }
.field input[aria-invalid="true"] { border-color: var(--error); }
.field-hint { font-size: 0.95rem; color: var(--muted); }
.field-error { font-size: 0.95rem; font-weight: 600; color: var(--error); }
.field-error:empty { display: none; }
.form-status:empty { display: none; }
.form-status { font-weight: 600; color: var(--error); border-left: 4px solid var(--error); padding: 0.5rem 0.8rem; background: var(--tint); }
.form-note { font-size: 0.95rem; color: var(--muted); }
.enquiry .btn { justify-self: start; cursor: pointer; font-family: inherit; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* About, Contact, Privacy */
.details { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1.25rem 2rem; }
.details--single { grid-template-columns: 1fr; gap: 1rem; }
.details div { display: grid; gap: 0.15rem; min-width: 0; overflow-wrap: anywhere; }
.details dt { font-size: 0.95rem; font-weight: 600; color: var(--muted); }
.details dd { margin: 0; }
.hero--slim { padding-block-end: clamp(1.5rem, 4vw, 2.5rem); }
.prose { display: grid; gap: 1rem; }
.prose > * { max-width: 65ch; }
.prose h2 { font-size: 1.35rem; margin-top: 1.25rem; }
.prose ul { margin: 0; padding-left: 1.3rem; display: grid; gap: 0.45rem; }
.prose strong { font-weight: 600; }

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