/* ===== NAVIGATION ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  padding: 0.5rem;
}

.nav-toggle .close-icon {
  display: none;
}

.menu-open .nav-toggle .menu-icon {
  display: none;
}

.menu-open .nav-toggle .close-icon {
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-body);
  font-size: 1.0625rem; /* 17px */
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.7;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 0;
  transition: opacity 0.3s;
}

.nav-link:hover,
.nav-link.active {
  opacity: 1;
}

.dropdown-icon {
  width: 14px;
  height: 14px;
  transition: transform 0.3s;
}

.dropdown-open .dropdown-icon {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--bg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.dropdown-open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1.0625rem; /* 17px */
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.7;
  transition: all 0.3s;
}

.dropdown-link:hover,
.dropdown-link.active {
  opacity: 1;
  background: rgba(0, 0, 0, 0.03);
}

.nav-cta {
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: var(--bg);
  font-family: var(--font-body);
  font-size: 1rem; /* 16px */
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-cta:hover {
  filter: brightness(1.1);
}

/* ===== CONCEPT SWITCHER ===== */
.concept-switcher {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
}

.switcher-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: rgba(10, 10, 10, 0.93);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 40px;
  color: #fff;
  font-family: system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
}

.switcher-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s;
}

.concept-switcher.open .switcher-toggle svg {
  transform: rotate(180deg);
}

.switcher-dropdown {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.75rem;
  background: rgba(10, 10, 10, 0.93);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  min-width: 200px;
}

.concept-switcher.open .switcher-dropdown {
  opacity: 1;
  visibility: visible;
}

.switcher-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  color: #fff;
  font-family: system-ui, sans-serif;
  font-size: 0.8125rem;
  border-radius: 4px;
  transition: background 0.3s;
}

.switcher-option:hover {
  background: rgba(255, 255, 255, 0.1);
}

.switcher-option.active {
  background: rgba(255, 255, 255, 0.15);
}

.option-number {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--concept-color, #888);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: 600;
}

.switcher-back {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 0.5rem;
  padding-top: 0.875rem;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--dark);
  color: #fff;
  padding: 4rem 0 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--primary);
}

.footer-tagline {
  margin-top: 0.75rem;
  font-size: 1rem; /* 16px */
  color: rgba(255, 255, 255, 0.5);
}

.footer-nav {
  display: flex;
  gap: 4rem;
}

.footer-heading {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1rem;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-family: var(--font-body);
  font-size: 1.125rem; /* 18px */
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s;
}

.footer-link:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright,
.footer-concept {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

.hero-large {
  min-height: 80vh;
  padding: 8rem 2.5rem;
}

.hero-medium {
  min-height: 50vh;
  padding: 6rem 2.5rem;
}

.hero-small {
  min-height: 30vh;
  padding: 4rem 2.5rem;
}

.hero-minimal {
  background: var(--bg);
  padding: 6rem 2.5rem 4rem;
}

.hero-dark-blue {
  background: #1a2332;
}

.hero-dark-blue .hero-title {
  color: #f5f0e8;
}

.hero-dark-blue .hero-subtitle {
  color: rgba(245, 240, 232, 0.6);
}

.hero-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay .hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4), rgba(0,0,0,0.6));
}

.hero-overlay .hero-content {
  color: #fff;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.hero-title {
  font-style: italic;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 1.625rem; /* 26px */
  opacity: 0.85;
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* Secondary buttons on hero overlay need better contrast */
.hero-overlay .hero-cta .btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
}

.hero-overlay .hero-cta .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(255, 255, 255, 0.95);
  color: var(--dark);
}

/* Split Hero */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
  text-align: left;
}

.hero-split-reverse {
  direction: rtl;
}

.hero-split-reverse > * {
  direction: ltr;
}

.hero-text-column {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem;
}

.hero-image-column {
  position: relative;
}

.hero-image-column img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content-text {
  font-size: 1.375rem; /* 22px */
  color: var(--text-muted);
  margin-top: 1.5rem;
  line-height: 1.8;
}

/* ===== STATS BAR ===== */
.stats-bar {
  background: var(--dark);
  padding: 3rem 2.5rem;
}

.stats-container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 0 1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-style: italic;
  color: var(--primary);
}

.stat-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 0.5rem;
}

/* ===== MOBILE NAVIGATION ===== */
@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
  }

  .menu-open .nav-menu {
    opacity: 1;
    visibility: visible;
  }

  .nav-links {
    flex-direction: column;
    gap: 1.5rem;
  }

  .nav-link {
    font-size: 1.25rem;
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    display: none;
  }

  .dropdown-open .nav-dropdown {
    display: block;
  }

  .dropdown-link {
    font-size: 1rem;
    text-align: center;
  }

  .hero-split {
    grid-template-columns: 1fr;
  }

  .hero-split-reverse {
    direction: ltr;
  }

  .hero-text-column {
    padding: 3rem 2rem;
  }

  .hero-image-column {
    min-height: 50vh;
  }

  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-item {
    border-right: none;
    padding: 1rem 0;
  }

  .footer-main {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-nav {
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}