/* ============================================================
   Boarding School Advisory — stylesheet
   Design tokens follow the brand brief. Two accent variants exist
   on purpose: --terracotta is the true brand swatch (used for
   large text, icons, borders, decorative fills); --terracotta-ink
   is a deepened variant used wherever terracotta sits behind or
   under body-sized text on a light background, so contrast stays
   at WCAG AA (4.5:1+). See README for the full contrast notes.
   ============================================================ */

:root {
  --charcoal: #3a3f47;
  --charcoal-dark: #1c1e21;
  --cream: #f2ecdd;
  --white: #fdfcf9;
  --terracotta: #c07a4a;       /* brand accent — large text, icons, borders */
  --terracotta-ink: #8f5330;   /* AA-safe on cream/white for small text & links */
  --terracotta-btn: #a8622f;   /* AA-safe with white text, for solid buttons */
  --line: rgba(58, 63, 71, 0.14);
  --line-dark: rgba(242, 236, 221, 0.16);

  --font-head: "Fraunces", "Georgia", serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", "SFMono-Regular", Consolas, monospace;

  --container: 1120px;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--terracotta-ink); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--terracotta-ink);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--charcoal-dark);
  color: var(--cream);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.6em;
  color: var(--charcoal);
}
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); font-weight: 500; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }
.lede { font-size: 1.15rem; color: var(--charcoal); max-width: 62ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta-ink);
  display: inline-block;
  margin-bottom: 0.9em;
}
section[data-tone="dark"] .eyebrow { color: var(--terracotta); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--terracotta-btn);
  color: #fff;
}
.btn-primary:hover { background: #8f5527; }

.btn-ghost {
  background: transparent;
  border-color: var(--charcoal);
  color: var(--charcoal);
}
.btn-ghost:hover { border-color: var(--terracotta-ink); color: var(--terracotta-ink); }

section[data-tone="dark"] .btn-ghost {
  border-color: var(--cream);
  color: var(--cream);
}
section[data-tone="dark"] .btn-ghost:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
}

.btn-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--terracotta-ink);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
section[data-tone="dark"] .btn-text { color: var(--terracotta); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253, 252, 249, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--charcoal);
}
.brand-emblem { width: 34px; height: 34px; flex: none; }
.brand-word {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.1;
}

.main-nav { display: none; }
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.6rem;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--charcoal);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { border-color: var(--terracotta); }
.main-nav a[aria-current="true"] {
  border-color: var(--terracotta);
  color: var(--terracotta-ink);
}

.header-cta { display: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  border: 1.5px solid var(--charcoal);
  background: none;
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

.mobile-nav {
  display: none;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.5rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.mobile-nav a {
  color: var(--charcoal);
  text-decoration: none;
  font-weight: 600;
}
.mobile-nav .btn { margin-top: 0.4rem; align-self: flex-start; }

@media (min-width: 900px) {
  .main-nav { display: block; }
  .header-cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* ---------- Emblem SVG ---------- */
.emblem-ring { stroke: var(--charcoal); }
.emblem-mark { stroke: var(--terracotta); }
section[data-tone="dark"] .emblem-ring,
.site-footer .emblem-ring { stroke: var(--cream); }
section[data-tone="dark"] .emblem-mark,
.site-footer .emblem-mark { stroke: var(--terracotta); }

/* ---------- Sections ---------- */
section { padding: clamp(3.2rem, 7vw, 6rem) 0; }
section[data-tone="dark"] {
  background: var(--charcoal-dark);
  color: var(--cream);
}
section[data-tone="dark"] h1,
section[data-tone="dark"] h2,
section[data-tone="dark"] h3 { color: var(--cream); }
section[data-tone="tint"] { background: var(--cream); }

.section-head {
  max-width: 68ch;
  margin-bottom: 2.4rem;
}

/* ---------- Hero ---------- */
.hero { padding-top: clamp(3rem, 8vw, 5rem); }
.hero .container {
  display: grid;
  gap: 2.6rem;
  align-items: center;
}
.hero-logo {
  background: var(--cream);
  border-radius: 14px;
  padding: 1.75rem;
}
.hero-logo img { width: 100%; height: auto; }
.hero-copy .lede { color: var(--charcoal); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.3rem;
  margin-top: 1.6rem;
}

@media (min-width: 860px) {
  .hero .container { grid-template-columns: 1.1fr 0.9fr; }
  .hero-copy { order: 1; }
  .hero-logo { order: 2; }
}

/* ---------- Credentials strip ---------- */
.credentials-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.credentials-strip ul {
  list-style: none;
  margin: 0;
  padding: 0.9rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  justify-content: center;
}
.credentials-strip li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--terracotta-ink);
  position: relative;
  padding-left: 1.8rem;
}
.credentials-strip li:first-child { padding-left: 0; }
.credentials-strip li::before {
  content: "";
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--terracotta);
}
.credentials-strip li:first-child::before { display: none; }

/* ---------- Audit section ---------- */
.audit-intro { margin-bottom: 2.2rem; max-width: 68ch; }
.trigger-list {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.trigger-list li {
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.tier-intro {
  max-width: 68ch;
  color: var(--charcoal);
  border-left: 2px solid var(--terracotta);
  padding-left: 1.2rem;
  margin-bottom: 2.2rem;
}

.tier-list {
  display: grid;
  gap: 1.4rem;
}
.tier-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.8rem;
}
.tier-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--terracotta-ink);
  line-height: 1.4;
}
.tier-body h3 { font-size: 1.15rem; margin-bottom: 0.5em; }
.tier-body > p:not(.tier-deliverable) { margin-bottom: 1em; }
.tier-deliverable {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line);
  font-size: 0.95rem;
}
.tier-deliverable .eyebrow {
  display: block;
  margin-bottom: 0.35em;
}

/* ---------- Advisory cards ---------- */
.advisory-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .advisory-grid { grid-template-columns: repeat(3, 1fr); }
}
.advisory-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.7rem;
  background: var(--white);
}
.advisory-card .num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--terracotta-ink);
  display: block;
  margin-bottom: 0.7em;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 860px) {
  .about-grid { grid-template-columns: 0.85fr 1.15fr; }
}
.about-portrait-frame {
  position: relative;
  width: clamp(180px, 24vw, 240px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}
.portrait-ring {
  position: absolute;
  inset: -12%;
  width: 124%;
  height: 124%;
  color: var(--charcoal);
}
.portrait-ring line { stroke: var(--terracotta); }
.about-portrait-photo {
  position: absolute;
  inset: 12%;
  width: 76%;
  height: 76%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
  background: var(--cream);
}

@media (min-width: 860px) {
  .about-portrait-frame { margin: 0; }
}
.credentials {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.credentials li {
  padding-left: 1.4em;
  position: relative;
}
.credentials li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 7px;
  height: 7px;
  background: var(--terracotta);
  border-radius: 50%;
}
.placeholder-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--terracotta-ink);
  border: 1px dashed var(--terracotta);
  border-radius: 6px;
  padding: 0.6em 0.9em;
  display: inline-block;
  margin-top: 1rem;
}

/* ---------- Case study ---------- */
.case-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(1.8rem, 4vw, 3rem);
  display: grid;
  gap: 1.8rem;
}
@media (min-width: 780px) {
  .case-card { grid-template-columns: 1.3fr 0.7fr; }
}
.case-card blockquote {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--charcoal);
}
.case-card cite {
  display: block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--terracotta-ink);
  margin-top: 1rem;
}
.case-outcome {
  border-left: 1px solid var(--line);
  padding-left: 1.8rem;
}
@media (max-width: 779px) {
  .case-outcome { border-left: none; border-top: 1px solid var(--line); padding-left: 0; padding-top: 1.4rem; }
}
.case-outcome .eyebrow { margin-bottom: 0.5em; }
.case-outcome .metric {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--charcoal);
  display: block;
  margin-bottom: 0.3em;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1.1fr 0.9fr; }
}
.field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cream);
}
.field input, .field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 0.9em;
  border-radius: 6px;
  border: 1.5px solid var(--line-dark);
  background: rgba(242, 236, 221, 0.06);
  color: var(--cream);
}
.field input::placeholder, .field textarea::placeholder { color: rgba(242,236,221,0.45); }
.field input:focus, .field textarea:focus {
  border-color: var(--terracotta);
  outline: none;
  background: rgba(242, 236, 221, 0.1);
}
.field textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 0.85rem;
  color: rgba(242,236,221,0.7);
  margin-top: -0.4rem;
  margin-bottom: 1.2rem;
}
.form-status {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.9em 1em;
  border-radius: 6px;
  border: 1px solid var(--terracotta);
  color: var(--cream);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-error {
  border-color: #d98b6a;
  background: rgba(217, 139, 106, 0.12);
}

#enquiryForm button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.contact-direct {
  display: grid;
  gap: 1.4rem;
  align-content: start;
}
.contact-direct-item {
  border-top: 1px solid var(--line-dark);
  padding-top: 1.2rem;
}
.contact-direct-item .eyebrow { margin-bottom: 0.4em; }
.contact-direct-item a {
  color: var(--cream);
  font-family: var(--font-head);
  font-size: 1.15rem;
  text-decoration: none;
  border-bottom: 1px solid var(--terracotta);
}
.contact-direct-item a:hover { color: var(--terracotta); }
.contact-direct-item small {
  display: block;
  margin-top: 0.4em;
  color: rgba(242,236,221,0.6);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--charcoal-dark);
  color: rgba(242,236,221,0.75);
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-dark);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--cream);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 0.95rem;
}
.footer-brand .brand-emblem { width: 26px; height: 26px; }
.footer-nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
}
.footer-nav a { color: rgba(242,236,221,0.75); text-decoration: none; font-size: 0.9rem; }
.footer-nav a:hover { color: var(--terracotta); }
.footer-fine {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(242,236,221,0.5);
  margin-top: 1.6rem;
}

/* ---------- Visually hidden ---------- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}