/* ===========================
   Shared Dark Nav — sub-pages
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

* {
  box-sizing: border-box;
}

html,
body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
}

/* ----- Nav shell ----- */
nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 2rem;
  position: relative;
}

/* ----- Logo ----- */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav-logo img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.nav-logo:hover img {
  transform: scale(1.08);
}

.nav-logo span {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
}

/* ----- Link list ----- */
.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #e879a0;
  border-radius: 2px;
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.active {
  color: #ffffff;
}

.nav-links a.active::after {
  width: 100%;
  background: #e879a0;
}

/* ----- Hamburger button — hidden desktop ----- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 36px;
  height: 36px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===========================
   Responsive — Mobile (≤ 680px)
   =========================== */
@media (max-width: 680px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(0, 0, 0, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.5rem 0 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    list-style: none;
  }

  .nav-links a {
    display: block;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
  }

  .nav-container {
    padding: 0.75rem 1.25rem;
  }
}