/* ==========================================================================
   Diva Dance – Base (shared by every page)
   Mobile-first. Breakpoints: 40em (640px), 64em (1024px)
   ========================================================================== */

:root {
  --c-bg: #0e0b08;
  --c-bg-soft: #17120d;
  --c-surface: rgba(255, 240, 210, 0.04);
  --c-border: rgba(214, 172, 100, 0.22);
  --c-text: #eadfcb;
  --c-muted: #b4a68e;
  --c-gold: #d6ac64;
  --c-gold-light: #f4dfa8;
  --c-gold-dark: #9c7236;

  --g-gold: linear-gradient(100deg, var(--c-gold-dark) 0%, var(--c-gold-light) 35%, var(--c-gold) 55%, var(--c-gold-light) 75%, var(--c-gold-dark) 100%);
  --g-gold-btn: linear-gradient(135deg, var(--c-gold-light), var(--c-gold) 55%, var(--c-gold-dark));

  --f-serif: "Cormorant Garamond", "Cormorant", Garamond, "Times New Roman", serif;
  --f-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;

  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--f-serif);
  font-weight: 500;
  line-height: 1.15;
  color: var(--c-gold-light);
}

p {
  margin: 0 0 var(--space-2);
}

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

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--c-gold-light);
  outline-offset: 4px;
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* ---------- Utilities ---------- */

.container {
  width: 100%;
  max-width: 76rem;
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--narrow {
  max-width: 44rem;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-2);
  z-index: 100;
  padding: var(--space-1) var(--space-2);
  background: var(--c-gold);
  color: var(--c-bg);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-2);
}

.eyebrow {
  margin-bottom: var(--space-2);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.gold-text {
  background-image: var(--g-gold);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--c-gold);
  animation: shimmer 8s linear infinite;
}

/* ---------- Buttons ---------- */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0.85rem 2rem;
  overflow: hidden;
  border: 1px solid var(--c-gold);
  border-radius: var(--radius);
  font-family: var(--f-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.btn--primary {
  background-image: var(--g-gold-btn);
  color: var(--c-bg);
}

.btn--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.45) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.8s var(--ease);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  box-shadow: 0 10px 30px -10px rgba(214, 172, 100, 0.6);
  transform: translateY(-2px);
}

.btn--primary:hover::after,
.btn--primary:focus-visible::after {
  transform: translateX(120%);
}

.btn--ghost {
  background: transparent;
  color: var(--c-gold-light);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background-color: rgba(214, 172, 100, 0.1);
}

/* ---------- Sections ---------- */

.section {
  padding-block: var(--space-5);
  text-align: center;
}

.section__title {
  margin-bottom: var(--space-3);
  font-size: clamp(2rem, 7vw, 3.2rem);
}

:where(.section) p {
  color: var(--c-muted);
}

.cards {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.card {
  padding: var(--space-4) var(--space-3);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), background-color 0.4s var(--ease);
}

.card:hover {
  border-color: var(--c-gold);
  background-color: rgba(214, 172, 100, 0.06);
  transform: translateY(-4px);
}

.card__title {
  margin-bottom: var(--space-2);
  font-size: 1.7rem;
}

.card p {
  margin: 0;
}

.stage {
  border-top: 1px solid var(--c-border);
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(214, 172, 100, 0.12), transparent 70%),
    var(--c-bg-soft);
}

.stage .btn {
  margin-top: var(--space-2);
}

/* ---------- Animations ---------- */

@keyframes shimmer {
  to { background-position: 200% center; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Tablet ---------- */

@media (min-width: 40em) {
  .container {
    padding-inline: var(--space-4);
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
    max-width: 60rem;
  }
}

/* ---------- Desktop ---------- */

@media (min-width: 64em) {
  .section {
    padding-block: 6rem;
  }
}

/* ---------- Accessibility ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}