/* ============================================================
   UMANAH INSTITUTE — Base Stylesheet
   Reset, typography, layout utilities, nav, footer, buttons.
   Shared across all pages — import after tokens.css.
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-outer);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--navy);
  text-decoration: none;
}
a:hover {
  color: var(--navy-hover);
}

ul {
  list-style: none;
}

/* ── Boxed Site Wrapper ───────────────────────────────────── */
#site-box {
  max-width: var(--box-width);
  margin: 0 auto;
  background-color: var(--bg-base);
  box-shadow: var(--box-shadow);
  position: relative;
  min-height: 100vh;
}

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem);     line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem);   line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.3rem); line-height: 1.25; }
h4 { font-size: 1.05rem; line-height: 1.3; }

p {
  max-width: 68ch;
  color: var(--text-secondary);
}

strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ── Layout Utilities ─────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--pad-desktop);
  padding-right: var(--pad-desktop);
}

.section {
  padding-top: var(--sec-pad-desktop);
  padding-bottom: var(--sec-pad-desktop);
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ── Section Label (eyebrow above headings) ───────────────── */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.section-heading {
  margin-bottom: var(--sp-4);
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 62ch;
  margin-bottom: var(--sp-5);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--btn-height);
  padding: 0 var(--sp-4);
  border-radius: var(--btn-radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
  border: 1.5px solid transparent;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background-color: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.btn-primary:hover {
  background-color: var(--navy-hover);
  border-color: var(--navy-hover);
  color: #fff;
}

.btn-secondary {
  background-color: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover {
  background-color: var(--navy-tint);
  color: var(--navy);
}

.btn-ghost {
  background-color: transparent;
  color: var(--navy);
  border-color: transparent;
  padding: 0 var(--sp-2);
  font-size: 0.875rem;
}
.btn-ghost:hover {
  color: var(--navy-hover);
  text-decoration: underline;
}

/* ── Sticky Navigation ────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(247, 245, 240, 0.97);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-wordmark {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  text-decoration: none;
  margin-right: var(--sp-5);
}
.nav-wordmark:hover {
  color: var(--navy);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s;
  text-decoration: none;
}
.nav-link:hover,
.nav-link.active {
  color: var(--navy);
}
.nav-link.active {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-shrink: 0;
}

/* In the nav, secondary CTA is text-link style — no border — to save horizontal space */
.nav-actions .btn-secondary {
  background: none;
  border-color: transparent;
  color: var(--text-secondary);
  font-size: 0.84rem;
  padding: 0 var(--sp-2);
  height: auto;
}
.nav-actions .btn-secondary:hover {
  background: none;
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── Hamburger Button ─────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.nav-hamburger span {
  display: block;
  height: 1.5px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile Menu ──────────────────────────────────────────── */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-base);
  border-bottom: 1px solid var(--border);
  padding: var(--sp-4);
  z-index: 99;
  flex-direction: column;
  gap: var(--sp-3);
  box-shadow: 0 4px 12px rgba(0,0,0,0.07);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.nav-mobile-menu.open {
  display: flex;
}
.nav-mobile-menu .nav-link {
  font-size: 1rem;
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--border);
}
.nav-mobile-menu .nav-link:last-of-type {
  border-bottom: none;
}
.nav-mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding-top: var(--sp-3);
}
.nav-mobile-actions .btn {
  width: 100%;
  justify-content: center;
}

/* ── Unified Footer ───────────────────────────────────────── */
.site-footer {
  background-color: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: var(--sp-8) 0 var(--sp-6);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-6);
}

.footer-wordmark {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--sp-2);
}

.footer-tagline {
  font-size: 0.825rem;
  color: var(--text-muted);
  max-width: 36ch;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  align-items: flex-end;
}
.footer-links a {
  font-size: 0.825rem;
  color: var(--text-muted);
  transition: color 0.15s;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--navy);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--sp-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-privacy {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  text-decoration: none;
}
.footer-privacy:hover {
  color: var(--navy);
}

/* ── Fade-in Entrance Animation ───────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Checklist Items (shared: convening + homepage) ───────── */
.checklist-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border);
}
.checklist-item:last-child {
  border-bottom: none;
}
.checklist-item .check-icon {
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--navy);
}
.checklist-item span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── Sector Tags (shared) ─────────────────────────────────── */
.sectors-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
  justify-content: center;
}

.sector-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 1 auto;
  background-color: var(--navy-tint);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--navy);
}

/* ── Mission / Principle Blocks (shared) ──────────────────── */
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  margin-top: var(--sp-6);
}

.mission-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: var(--card-pad);
  box-shadow: var(--card-shadow);
  text-align: center;
}

.mission-block .block-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
  display: block;
  text-align: center;
}

.mission-block .block-statement {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.25;
  text-align: center;
}

/* ── Leadership Card (shared) ─────────────────────────────── */
.leadership-section {
  background-color: var(--bg-base);
  border-top: 1px solid var(--border);
}

.leadership-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-5);
}

.leadership-inner .section-label {
  display: block;
  text-align: center;
}

.leadership-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  padding: var(--sp-7) var(--sp-8);
  max-width: 580px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
  text-align: center;
}

.leadership-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 48ch;
  margin: 0;
  text-align: center;
}

.leadership-name-link {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(11,31,59,0.35);
  transition: color 0.18s, text-decoration-color 0.18s;
}
.leadership-name-link:hover {
  color: var(--navy-hover);
  text-decoration-color: var(--navy-hover);
}
.leadership-name-link strong {
  color: inherit;
}

.leadership-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--sp-1);
  padding: 9px 20px;
  border: 1.5px solid var(--navy);
  border-radius: 8px;
  color: var(--navy);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.18s, color 0.18s;
  text-decoration: none;
}
.leadership-linkedin:hover {
  background-color: var(--navy-tint);
  color: var(--navy-hover);
}

/* ── Responsive — Tablet (≤ 1024px) ──────────────────────── */
@media (max-width: 1024px) {
  .container {
    padding-left: var(--pad-tablet);
    padding-right: var(--pad-tablet);
  }
  .section {
    padding-top: var(--sec-pad-tablet);
    padding-bottom: var(--sec-pad-tablet);
  }
  .mission-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Responsive — Mobile (≤ 768px) ───────────────────────── */
@media (max-width: 768px) {
  .container {
    padding-left: var(--pad-mobile);
    padding-right: var(--pad-mobile);
  }
  .section {
    padding-top: var(--sec-pad-mobile);
    padding-bottom: var(--sec-pad-mobile);
  }

  /* Nav */
  .nav-links,
  .nav-actions {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }

  /* Global text centering */
  h1, h2, h3, h4, h5, h6 {
    text-align: center;
  }
  p {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }
  .section-label,
  .hero-eyebrow,
  .block-label {
    display: block;
    text-align: center;
  }

  /* Mission grid */
  .mission-grid {
    grid-template-columns: 1fr;
  }
  .mission-block {
    text-align: center;
  }
  .mission-block .block-statement {
    text-align: center;
  }

  /* Footer */
  .footer-top {
    flex-direction: column;
    align-items: center;
    gap: var(--sp-4);
    text-align: center;
  }
  .footer-wordmark,
  .footer-tagline {
    text-align: center;
  }
  .footer-links {
    align-items: center;
    text-align: center;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: var(--sp-2);
    text-align: center;
  }

  /* Leadership */
  .leadership-card {
    padding: var(--sp-5) var(--sp-4);
  }

  /* Checklist */
  .checklist-item {
    justify-content: flex-start;
    text-align: left;
  }
  .checklist-item span {
    text-align: left;
    flex: 1;
  }
}