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

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.navbar-row {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.navbar-brand a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a.active {
  color: var(--color-text-white);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-member {
  background: var(--color-accent);
  color: #0a0a0a;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.btn-member:hover {
  background: var(--color-accent-dark);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-secondary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  width: 100%;
  max-height: calc(100vh - var(--nav-height));
  overflow-y: auto;
  z-index: 99;
  flex-direction: column;
  background: var(--color-bg-elevated, var(--color-bg-surface));
  border-bottom: 1px solid var(--color-border);
  padding: 8px 0 32px;
}

.nav-mobile-menu.open {
  display: flex;
}

.nav-mobile-menu a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

.nav-mobile-menu a:last-of-type {
  border-bottom: none;
}

.nav-mobile-menu a:hover {
  color: var(--color-text-primary);
}

.nav-mobile-menu .btn-member {
  display: block;
  margin: var(--space-5) var(--space-5) 0;
  width: calc(100% - 2 * var(--space-5));
  text-align: center;
  padding: 14px 20px;
  background: var(--color-accent);
  color: #0a0a0a;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border-bottom: none;
}

.nav-mobile-menu .btn-member:hover {
  background: var(--color-accent-dark);
  color: #0a0a0a;
}

@media (max-width: 768px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .navbar-row {
    padding: 0 24px;
  }
}