/* ==========================================================================
   Variables
   ========================================================================== */

:root {
  /* Color palette */
  --color-bg-primary: #0F172A;        /* deep midnight blue */
  --color-bg-secondary: #F7F3E9;      /* warm ivory */
  --color-bg-surface-dark: #111827;   /* near-black surface */
  --color-bg-surface-light: #FFFFFF;  /* white cards on light sections */

  --color-text-on-dark: #F5F1E8;      /* soft ivory */
  --color-text-on-light: #1E1E1E;     /* deep charcoal */
  --color-heading-wine: #7A1F2B;      /* elegant wine red */
  --color-heading-navy: #1B2A41;      /* deep navy */

  --color-primary: #C8A15A;           /* antique gold (CTA) */
  --color-primary-hover: #7A5A3A;     /* dark bronze */
  --color-accent-teal: #1F6F78;       /* muted teal accents */

  --color-success: #16A34A;
  --color-warning: #FACC15;
  --color-danger: #DC2626;

  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2933;
  --color-neutral-900: #111827;

  /* Mandatory age banner */
  --color-age-banner-bg: #D60000;     /* solid red */
  --color-age-banner-text: #FFFFFF;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Playfair Display", "Times New Roman", serif;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */
  --font-size-5xl: 3rem;     /* 48px */

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (px to rem, base 16px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows (cinematic, layered) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.12);
  --shadow-md: 0 10px 25px rgba(15, 23, 42, 0.25);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.45);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 300ms ease-out;

  /* Layout */
  --max-width-container: 1120px;
  --site-gutter-x: 1.5rem;
  --age-banner-height: 3rem; /* 48px fixed banner */
}

/* ==========================================================================
   Reset / Normalize
   ========================================================================== */

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  margin: 0;
}

h1, h2, h3, h4, h5, h6,
p, figure, blockquote,
dl, dd {
  margin: 0;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  margin: 0;
  padding: 0;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: none;
  padding: 0;
  background: none;
}

:focus {
  outline: none;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background-color: var(--color-bg-primary);
  color: var(--color-text-on-dark);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  /* Compensate for fixed 21+ banner */
  padding-top: var(--age-banner-height);
}

main {
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-heading-wine);
  margin-bottom: var(--space-3);
}

h1 {
  font-size: clamp(2.5rem, 3.5vw, var(--font-size-5xl));
}

h2 {
  font-size: clamp(2rem, 3vw, var(--font-size-4xl));
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, var(--font-size-3xl));
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-4);
  }

strong {
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover,
a:focus-visible {
  color: var(--color-primary-hover);
}

/* Age verification banner - fixed, always visible */
.age-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--age-banner-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--space-4);
  background-color: var(--color-age-banner-bg);
  color: var(--color-age-banner-text);
  font-size: var(--font-size-sm);
  text-align: center;
}

.age-banner__content {
  max-width: var(--max-width-container);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.age-banner__text {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.age-banner__note {
  font-size: var(--font-size-xs);
  opacity: 0.9;
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: calc(var(--max-width-container) + var(--site-gutter-x) * 2);
  margin-inline: auto;
  padding-inline: var(--site-gutter-x);
}

.section {
  padding-block: var(--space-12);
}

.section--tight {
  padding-block: var(--space-8);
}

.section--xl {
  padding-block: var(--space-16);
}

/* Thematic background helpers */
.section--dark {
  background-color: var(--color-bg-primary);
  color: var(--color-text-on-dark);
}

.section--light {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-on-light);
}

.section--corporate {
  background-color: #FFFFFF;
  color: var(--color-text-on-light);
}

.section--nightlife {
  background: radial-gradient(circle at top, #1F2937 0, #020617 55%, #000 100%);
  color: var(--color-text-on-dark);
}

.section--festive {
  background-color: #FCEFD9;
  color: var(--color-text-on-light);
}

/* Flex helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-col {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid helpers */
.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-8);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }

.mx-auto { margin-inline: auto; }

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn--primary {
  background-color: var(--color-primary);
  color: #111827;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  color: #F9FAFB;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background-color: transparent;
  color: inherit;
  border-color: currentColor;
}

.btn--outline:hover {
  background-color: rgba(15, 23, 42, 0.08);
}

.btn--ghost {
  background-color: transparent;
  color: inherit;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 3px;
}

/* Inputs & form fields */
.form-group {
  margin-bottom: var(--space-4);
}

.label {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-neutral-300);
  background-color: var(--color-bg-surface-light);
  color: var(--color-text-on-light);
  font-size: var(--font-size-sm);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-neutral-400);
}

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  border-color: var(--color-accent-teal);
  box-shadow: 0 0 0 1px var(--color-accent-teal);
}

.textarea {
  min-height: 7rem;
  resize: vertical;
}

.input--dark,
.textarea--dark,
.select--dark {
  background-color: var(--color-bg-surface-dark);
  border-color: var(--color-neutral-600);
  color: var(--color-text-on-dark);
}

.input--dark::placeholder,
.textarea--dark::placeholder {
  color: var(--color-neutral-400);
}

.field-error {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Card */
.card {
  position: relative;
  background-color: var(--color-bg-surface-light);
  color: var(--color-text-on-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.card--dark {
  background: radial-gradient(circle at top left, rgba(200, 161, 90, 0.12), transparent 55%),
              #020617;
  color: var(--color-text-on-dark);
}

.card__eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-accent-teal);
  margin-bottom: var(--space-2);
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
  color: var(--color-heading-navy);
}

.card--dark .card__title {
  color: var(--color-text-on-dark);
}

.card__body {
  font-size: var(--font-size-sm);
}

/* Hero-specific helpers (cinematic layout) */
.hero {
  position: relative;
  min-height: clamp(70vh, 88vh, 900px);
  display: flex;
  align-items: center;
  color: var(--color-text-on-dark);
  background-color: #020617;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(200, 161, 90, 0.28), transparent 55%),
              radial-gradient(circle at bottom right, rgba(31, 111, 120, 0.3), transparent 60%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 32rem;
}

.hero__kicker {
  font-size: var(--font-size-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-teal);
  margin-bottom: var(--space-3);
}

.hero__title {
  color: var(--color-text-on-dark);
}

.hero__subtitle {
  margin-top: var(--space-3);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 34rem;
}

.hero__actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__media {
  position: relative;
  z-index: 0;
}

@media (min-width: 900px) {
  .hero__layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.1fr);
    align-items: center;
    gap: var(--space-12);
  }
}

/* Accent separator */
.hr-accent {
  border: none;
  height: 1px;
  width: 64px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-teal));
  margin-block: var(--space-4);
}

/* Badges / tags */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(200, 161, 90, 0.35);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge--night {
  background-color: rgba(15, 23, 42, 0.9);
  color: var(--color-text-on-dark);
}

.badge--light {
  background-color: #FFF7E5;
  color: var(--color-text-on-light);
}

/* Navigation (generic base) */
.site-header {
  position: sticky;
  top: var(--age-banner-height);
  z-index: 900;
  backdrop-filter: blur(18px);
  background-color: rgba(15, 23, 42, 0.85);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.75rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-on-dark);
}

.site-nav a[aria-current="page"] {
  color: var(--color-primary);
}

@media (max-width: 768px) {
  body {
    padding-top: calc(var(--age-banner-height) + 0.25rem);
  }

  .site-header__inner {
    padding-block: 0.6rem;
  }

  .site-nav {
    gap: var(--space-3);
  }
}

/* Footer */
.site-footer {
  padding-block: var(--space-8);
  background-color: #020617;
  color: var(--color-text-on-dark);
  font-size: var(--font-size-sm);
  border-top: 1px solid rgba(148, 163, 184, 0.4);
}

.site-footer a {
  color: var(--color-text-on-dark);
}

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

/* Toast / inline notice (e.g., age notice, info) */
.notice {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.notice--info {
  background-color: #E0F2FE;
  color: #0F172A;
  border-color: #7DD3FC;
}

.notice--warning {
  background-color: #FEF3C7;
  color: #78350F;
  border-color: #FACC15;
}

.notice--danger {
  background-color: #FEE2E2;
  color: #7F1D1D;
  border-color: #DC2626;
}

.notice--success {
  background-color: #DCFCE7;
  color: #14532D;
  border-color: #22C55E;
}