/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.95em 2em;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: transform var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo),
    background var(--duration-normal) var(--ease-out-expo),
    color var(--duration-normal) var(--ease-out-expo);
}

.btn-primary {
  background: linear-gradient(120deg, var(--color-gold-deep), var(--color-gold-bright));
  color: #17130c;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -12px rgba(212, 175, 55, 0.55);
}

.btn-ghost {
  border: 1px solid var(--color-surface-line);
  color: var(--color-text);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--color-gold);
  color: var(--color-gold-bright);
  transform: translateY(-2px);
}

/* Site header / nav */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: var(--space-md);
  transition: padding var(--duration-normal) var(--ease-out-expo),
    background var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) var(--ease-out-expo);
  border-bottom: 1px solid transparent;
}

.site-header::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 260px;
  background: linear-gradient(to bottom, rgba(8, 7, 5, 0.65) 0%, rgba(8, 7, 5, 0.32) 45%, transparent 100%);
  pointer-events: none;
  z-index: -1;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.site-header.is-scrolled::before {
  opacity: 0;
}

.site-header.is-scrolled {
  padding-block: var(--space-xs);
  background: rgba(10, 10, 10, 0.86);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--color-surface-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.14em;
  color: var(--color-text);
}

.logo span {
  color: var(--color-gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  position: relative;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding-block: var(--space-3xs);
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--duration-normal) var(--ease-out-expo);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-active {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.is-active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2xs);
}

.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--color-gold-bright);
  transition: transform var(--duration-normal) var(--ease-out-expo), opacity var(--duration-fast);
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 0;
    top: 0;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-lg);
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out-expo);
  }

  .nav-links.is-open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: var(--text-lg);
    font-family: var(--font-display);
  }

  .nav-toggle {
    display: inline-flex;
    z-index: 110;
  }

  .nav-toggle[aria-expanded='true'] span:first-child {
    transform: translateY(6.5px) rotate(45deg);
  }

  .nav-toggle[aria-expanded='true'] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded='true'] span:last-child {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  .nav-actions .btn-primary {
    display: none;
  }
}

/* Cards */
.card {
  position: relative;
  padding: var(--space-lg);
  background: linear-gradient(160deg, var(--color-bg-elevated), var(--color-bg));
  border: 1px solid var(--color-surface-line);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  box-shadow: 0 24px 48px -28px rgba(212, 175, 55, 0.35);
}

.card-icon {
  width: 44px;
  height: 44px;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

/* Badge / rating stars */
.stars {
  display: flex;
  gap: 3px;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}