/* ===================================================================
   CPRP website: base stylesheet (prototype)
   Structural / layout styles only. Colors, fonts and spacing are
   exposed as CSS custom properties below so a designer can restyle
   the whole site by editing this block, without touching markup or
   the rules further down.
   =================================================================== */

:root {
  /* Color */
  --color-bg: #ffffff;
  --color-surface: #f5f6f8;
  --color-surface-alt: #eef0f3;
  --color-text: #1a1f26;
  --color-text-muted: #565f6b;
  --color-border: #dfe3e8;
  --color-primary: #1f3a5f;
  --color-primary-dark: #16283f;
  --color-on-primary: #ffffff;
  --color-accent: #2f6f6b;

  /* Type */
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Shape */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 999px;

  /* Layout */
  --container-width: 1140px;
  --header-height: 72px;
}

/* -------------------- Reset -------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; margin: 0 0 var(--space-4); color: var(--color-primary-dark); }
p { margin: 0 0 var(--space-4); }
ul { margin: 0; padding: 0; }
a { color: var(--color-primary); }
img { max-width: 100%; display: block; }
button { font: inherit; }

/* -------------------- Layout helpers -------------------- */
.container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-8); }
.section--alt { background: var(--color-surface); }
.section--dark { background: var(--color-primary-dark); color: var(--color-on-primary); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--color-on-primary); }

.section__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.section__title { font-size: 1.85rem; margin-bottom: var(--space-4); }
.section__lead { color: var(--color-text-muted); max-width: 70ch; }

.grid { display: grid; gap: var(--space-6); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover { background: var(--color-primary-dark); }
.btn--outline { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.btn--outline:hover { background: var(--color-primary); color: var(--color-on-primary); }
.section--dark .btn--outline { border-color: var(--color-on-primary); color: var(--color-on-primary); }
.section--dark .btn--outline:hover { background: var(--color-on-primary); color: var(--color-primary-dark); }

.btn-group { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* -------------------- Site header / nav -------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
.site-logo {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--color-primary-dark);
  text-decoration: none;
}
.site-logo__full { display: inline; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
}

.site-nav__list {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}
.site-nav__link {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding-block: var(--space-1);
  border-bottom: 2px solid transparent;
}
.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav__list {
    flex-direction: column;
    gap: 0;
    padding: var(--space-3) var(--space-5) var(--space-5);
  }
  .site-nav__link { display: block; padding: var(--space-3) 0; }
}

/* -------------------- Hero -------------------- */
.hero { padding-block: var(--space-9) var(--space-8); }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.hero__title {
  font-size: clamp(2rem, 4vw, 3.1rem);
  max-width: 22ch;
  margin-bottom: var(--space-4);
}
.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 65ch;
  margin-bottom: var(--space-5);
}
.hero--page { padding-block: var(--space-8) var(--space-7); }
.hero--page .hero__title { max-width: none; }

/* Pill list ("Leadership Experience. Strategic Insight. Regional Perspective.") */
.pill-list { list-style: none; display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-6); }
.pill {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-surface);
}

/* -------------------- Cards -------------------- */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.card__title { font-size: 1.2rem; margin-bottom: var(--space-3); }
.card__text { color: var(--color-text-muted); margin-bottom: 0; }

/* Research area cards */
.research-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); }
.research-card__title { font-size: 1.1rem; margin-bottom: var(--space-2); color: var(--color-primary-dark); }
.research-card__text { color: var(--color-text-muted); margin-bottom: 0; font-size: 0.95rem; }

/* -------------------- Stats -------------------- */
.stat-grid { text-align: center; }
.stat__value { font-size: 2.2rem; font-weight: 700; color: var(--color-primary); font-family: var(--font-heading); }
.stat__label { color: var(--color-text-muted); font-size: 0.9rem; margin-top: var(--space-1); }

/* -------------------- Advisory council -------------------- */
.chair-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-7);
}
.avatar {
  flex-shrink: 0;
  width: 88px;
  height: 88px;
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.3rem;
  font-family: var(--font-heading);
  object-fit: cover;
}
.chair-card__role { text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: var(--space-1); }
.chair-card__name { font-size: 1.3rem; margin: 0 0 var(--space-2); }
.chair-card__bio { color: var(--color-text-muted); max-width: 60ch; margin: 0 0 var(--space-2); }
.chair-card__credit { font-size: 0.75rem; color: var(--color-text-muted); margin: 0; }

.council-card { text-align: center; }
.council-card .avatar { margin: 0 auto var(--space-4); width: 96px; height: 96px; }
.council-card__name { font-size: 1.05rem; margin-bottom: var(--space-1); }
.council-card__meta { color: var(--color-text-muted); font-size: 0.85rem; margin-bottom: var(--space-3); }
.council-card__bio { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 0; }
.council-card__credit { font-size: 0.75rem; color: var(--color-text-muted); margin: var(--space-2) 0 0; }

.notice {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-6);
}
.placeholder { color: var(--color-text-muted); font-style: italic; }

/* -------------------- CTA band -------------------- */
.cta-band { background: var(--color-primary-dark); color: var(--color-on-primary); padding-block: var(--space-7); text-align: center; }
.cta-band__title { color: var(--color-on-primary); margin-bottom: var(--space-5); }
.cta-band .btn-group { justify-content: center; }

/* -------------------- Contact form -------------------- */
.contact-form { display: grid; gap: var(--space-4); max-width: 560px; }
.form-field label { display: block; font-weight: 600; margin-bottom: var(--space-2); font-size: 0.92rem; }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg);
}
.form-field textarea { resize: vertical; min-height: 140px; }

.contact-details { list-style: none; display: grid; gap: var(--space-3); }
.contact-details__label { font-weight: 600; margin-right: var(--space-2); }

/* -------------------- Footer -------------------- */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface); padding-block: var(--space-7) var(--space-5); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-6); margin-bottom: var(--space-6); }
.footer__heading { font-size: 0.95rem; margin-bottom: var(--space-3); }
.footer__links { list-style: none; }
.footer__links li { margin-bottom: var(--space-2); }
.footer__links a { color: var(--color-text-muted); text-decoration: none; font-size: 0.92rem; }
.footer__links a:hover { color: var(--color-primary); }
.footer__bottom { padding-top: var(--space-4); border-top: 1px solid var(--color-border); font-size: 0.85rem; color: var(--color-text-muted); }

@media (max-width: 640px) {
  .footer__grid { grid-template-columns: 1fr; }
  .chair-card { flex-direction: column; align-items: center; text-align: center; }
  .chair-card__bio { max-width: none; }
}

/* -------------------- Expert coverage map -------------------- */
.expert-map {
  height: 480px;
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.map-legend {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.map-legend__swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--color-primary);
}