@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Inter:wght@400;500;600&display=swap');

/* =============================================
   CSS VARIABLES
   ============================================= */
:root {
  --color-navy:      #1E3A5F;
  --color-gold:      #C9942A;
  --color-green:     #1A7A4A;
  --color-text:      #1A1A1A;
  --color-subtext:   #555555;
  --color-bg:        #FFFFFF;
  --color-surface:   #F4F4F4;
  --color-border:    #E0E0E0;

  --font-heading:    'Playfair Display', Georgia, serif;
  --font-body:       'Inter', Arial, sans-serif;

  --max-width:       1140px;
  --border-radius:   8px;
  --transition:      0.25s ease;
}

/* =============================================
   RESET
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-gold);
}

/* =============================================
   BASE TYPOGRAPHY
   ============================================= */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-navy);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 400; }
h4 { font-size: 1.125rem; font-weight: 700; }

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

p:last-child { margin-bottom: 0; }

/* =============================================
   UTILITIES
   ============================================= */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding: 80px 0;
}

.text-center { text-align: center; }
.text-navy   { color: var(--color-navy); }
.text-gold   { color: var(--color-gold); }
.bg-navy     { background-color: var(--color-navy); }
.bg-surface  { background-color: var(--color-surface); }

/* =============================================
   BUTTONS
   ============================================= */
.btn-primary,
.btn-secondary,
.btn-outline {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  border: 2px solid transparent;
  text-align: center;
  line-height: 1.4;
}

.btn-primary {
  background-color: var(--color-navy);
  color: #fff;
  border-color: var(--color-navy);
}
.btn-primary:hover {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: #fff;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-gold);
  color: #fff;
  border-color: var(--color-gold);
}
.btn-secondary:hover {
  background-color: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}
.btn-outline:hover {
  background-color: var(--color-navy);
  color: #fff;
  transform: translateY(-2px);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: #fff;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 16px rgba(30, 58, 95, 0.12);
}

.navbar__inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-navy);
  white-space: nowrap;
}
.navbar__logo:hover { color: var(--color-gold); }

.navbar__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 6px 10px;
  border-radius: 4px;
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-gold);
}

.navbar__cta {
  margin-left: 12px;
  padding: 8px 20px;
  font-size: 0.875rem;
}

/* Dropdown */
.navbar__dropdown {
  position: relative;
}
.navbar__dropdown-toggle {
  cursor: pointer;
}
.navbar__chevron {
  font-size: 0.65rem;
  margin-left: 2px;
  display: inline-block;
  transition: transform var(--transition);
}
.navbar__dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(30,58,95,0.12);
  padding: 8px 0;
  z-index: 1001;
  margin-top: 4px;
}
.navbar__dropdown-menu a {
  display: block;
  padding: 8px 18px;
  font-size: 0.8125rem;
  color: var(--color-text);
  border-radius: 0;
  white-space: nowrap;
}
.navbar__dropdown-menu a:hover {
  background-color: var(--color-surface);
  color: var(--color-gold);
}
.navbar__dropdown:hover > .navbar__dropdown-menu,
.navbar__dropdown.open > .navbar__dropdown-menu {
  display: block;
}
.navbar__dropdown:hover > .navbar__dropdown-toggle .navbar__chevron,
.navbar__dropdown.open > .navbar__dropdown-toggle .navbar__chevron {
  transform: rotate(180deg);
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.navbar__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Offset page content for fixed nav */
body > main,
body > .page-content {
  padding-top: 72px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background-color: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 24px 0;
}

.footer__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.footer__tagline {
  font-size: 0.8125rem;
  line-height: 1.6;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.7);
}

.footer__socials {
  display: flex;
  gap: 14px;
}
.footer__socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  color: rgba(255,255,255,0.8);
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}
.footer__socials a:hover {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: #fff;
}
.footer__socials svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.footer__heading {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
}
.footer__links a:hover { color: #fff; }

.footer__connect-btn {
  display: inline-block;
  margin-bottom: 16px;
  background-color: var(--color-gold);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background-color var(--transition), transform var(--transition);
}
.footer__connect-btn:hover {
  background-color: #b07f20;
  color: #fff;
  transform: translateY(-2px);
}

.footer__email {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
}
.footer__email a { color: rgba(255,255,255,0.85); }
.footer__email a:hover { color: var(--color-gold); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 8px;
}
.footer__bottom a { color: rgba(255,255,255,0.6); }
.footer__bottom a:hover { color: var(--color-gold); }

/* =============================================
   IMPACT STATS (shared partial)
   ============================================= */
.impact-stats-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .impact-stats-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    box-shadow: 0 8px 24px rgba(30,58,95,0.12);
    gap: 4px;
  }
  .navbar__links.open {
    display: flex;
  }
  .navbar__links a {
    width: 100%;
    padding: 10px 12px;
    font-size: 1rem;
  }
  .navbar__cta {
    margin-left: 0;
    margin-top: 8px;
    width: 100%;
    text-align: center;
  }
  .navbar__hamburger {
    display: flex;
  }

  /* Dropdowns: always expanded when menu is open */
  .navbar__dropdown { width: 100%; }
  .navbar__chevron { display: none; }
  .navbar__dropdown-menu {
    position: static;
    box-shadow: none;
    margin-top: 0;
    padding: 0 0 0 16px;
    display: block !important;
  }
  .navbar__dropdown-menu a {
    padding: 8px 12px;
    font-size: 0.9375rem;
  }

  .section-padding {
    padding: 60px 0;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
  /* Brand block (first) and Books block (last) span the full width;
     Explore + Professional sit side-by-side to use the space. */
  .footer__col:first-child,
  .footer__col:last-child {
    grid-column: 1 / -1;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }

  .btn-primary,
  .btn-secondary,
  .btn-outline {
    width: 100%;
    display: block;
    text-align: center;
  }

  .section-padding {
    padding: 48px 0;
  }
}