/* ==================================================================
   Variables
   ================================================================== */
:root {
  /* Color Palette - Pastel Rainbow on Cream */
  --color-background: #fff9f2; /* Creamy background */
  --color-surface: #ffffff;
  --color-text: #1f2933;
  --color-text-soft: #4b5563;
  --color-primary: #ff8fab; /* Pastel pink */
  --color-primary-soft: #ffe0eb;
  --color-primary-strong: #ff5c8a;

  --color-accent-blue: #9ad0f5;
  --color-accent-mint: #b8f2e6;
  --color-accent-lavender: #cdb4ff;
  --color-accent-peach: #ffc6a5;

  --color-success: #38b29a;
  --color-warning: #f4a259;
  --color-danger: #e63946;

  --color-neutral-50: #fafafa;
  --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 21+ banner */
  --color-age-banner-bg: #c1121f;
  --color-age-banner-text: #ffffff;

  /* Typography */
  --font-sans: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-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-snug: 1.35;
  --line-height-normal: 1.6;

  /* Spacing scale (px, exposed as rem for mobile-first) */
  --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: 0.375rem;  /* 6px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1.25rem;   /* 20px */
  --radius-pill: 999px;

  /* Shadows - soft, playful */
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-medium: 0 18px 45px rgba(15, 23, 42, 0.12);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 180ms ease-out;
  --transition-slow: 260ms ease-out;

  /* Layout */
  --container-max-width: 1120px;
  --header-height-mobile: 64px;
  --header-height-desktop: 80px;
  --age-banner-height: 40px;
}

/* ==================================================================
   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;
  padding: 0;
  margin: 0;
}

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

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

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

a {
  color: inherit;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  * {
    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);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

/* Age 21+ fixed banner (mobile-first) */
.age-banner {
  position: fixed;
  inset-inline: 0;
  top: 0;
  height: var(--age-banner-height);
  background-color: var(--color-age-banner-bg);
  color: var(--color-age-banner-text);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--space-3);
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.age-banner__text {
  max-width: 960px;
}

/* Layout helper to offset header for banner */
.has-age-banner body {
  padding-top: calc(var(--age-banner-height) + var(--header-height-mobile));
}

@media (min-width: 768px) {
  .age-banner {
    font-size: 0.8rem;
  }
  .has-age-banner body {
    padding-top: calc(var(--age-banner-height) + var(--header-height-desktop));
  }
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-neutral-900);
}

h1 {
  font-size: var(--font-size-3xl);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-snug);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-xl);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-3);
  color: var(--color-text-soft);
}

strong {
  font-weight: 600;
}

/* Links */
a {
  text-decoration: none;
  color: var(--color-primary-strong);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-lavender);
}

/* Lists */
ul,
ol {
  padding-left: var(--space-5);
  margin-bottom: var(--space-3);
}

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

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-6);
  }
}

.section {
  padding-block: var(--space-10);
}

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

@media (min-width: 768px) {
  h1.hero-title {
    font-size: var(--font-size-4xl);
  }
  .section {
    padding-block: var(--space-12);
  }
  .section--hero {
    padding-block: var(--space-16);
  }
}

/* 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);
}

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

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Spacing utilities (limited) */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.py-4 {
  padding-block: var(--space-4);
}

.py-6 {
  padding-block: var(--space-6);
}

.p-4 {
  padding: var(--space-4);
}

/* Text utilities */
.text-center {
  text-align: center;
}

.text-uppercase {
  text-transform: uppercase;
}

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

.text-xs {
  font-size: var(--font-size-xs);
}

.text-muted {
  color: var(--color-text-soft);
}

.font-semibold {
  font-weight: 600;
}

/* Screen reader only */
.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;
}

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

/* Header layout hint (sits below .age-banner) */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: var(--age-banner-height);
  z-index: 9000;
  background: rgba(255, 249, 242, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
}

.site-header__inner {
  height: var(--header-height-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .site-header__inner {
    height: var(--header-height-desktop);
  }
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-neutral-700);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 12%;
  bottom: 4px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-lavender));
  opacity: 0;
  transform: scaleX(0.6);
  transform-origin: center;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.nav-link:hover {
  background-color: rgba(255, 143, 171, 0.12);
  color: var(--color-neutral-900);
}

.nav-link--active::after {
  opacity: 1;
  transform: scaleX(1);
}

/* Hero background helper */
.hero {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  background: radial-gradient(circle at top left, var(--color-accent-mint) 0, transparent 50%),
              radial-gradient(circle at bottom right, var(--color-accent-lavender) 0, transparent 55%),
              linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-peach));
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 10% -30%;
  background: radial-gradient(circle at 10% 0%, rgba(255, 255, 255, 0.65), transparent 60%);
  opacity: 0.8;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding-inline: 1.4rem;
  padding-block: 0.7rem;
  border-radius: var(--radius-pill);
  border: none;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-lavender));
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(255, 143, 171, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(255, 143, 171, 0.45);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-strong);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 143, 171, 0.6);
  background-image: linear-gradient(135deg, rgba(255, 143, 171, 0.08), rgba(205, 180, 255, 0.06));
}

.btn-outline:hover {
  background-color: rgba(255, 143, 171, 0.12);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Inputs / Textareas / Selects */
.input,
.textarea,
.select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-neutral-200);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

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

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 143, 171, 0.35);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.input[aria-invalid="true"],
.textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}

/* Cards */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card--pastel {
  background-image: linear-gradient(135deg, rgba(184, 242, 230, 0.35), rgba(205, 180, 255, 0.25));
}

.card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: rgba(255, 255, 255, 0.85);
  color: var(--color-primary-strong);
}

/* Badges for event types */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge--poker {
  background-color: rgba(255, 143, 171, 0.15);
  color: var(--color-primary-strong);
}

.badge--vip {
  background-color: rgba(205, 180, 255, 0.18);
  color: #5b21b6;
}

.badge--team {
  background-color: rgba(184, 242, 230, 0.2);
  color: #047857;
}

/* Footer */
.site-footer {
  margin-top: var(--space-12);
  padding-block: var(--space-8);
  background: linear-gradient(180deg, rgba(255, 249, 242, 1), rgba(255, 198, 165, 0.35));
  border-top: 1px solid rgba(255, 255, 255, 0.8);
}

.site-footer__disclaimer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px dashed rgba(148, 163, 184, 0.5);
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

/* ==================================================================
   Accessibility / Focus Styles
   ================================================================== */

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

button:focus-visible,
[role="button"]:focus-visible,
.btn:focus-visible,
.nav-link:focus-visible {
  outline: 3px solid var(--color-accent-blue);
  outline-offset: 3px;
}

/* Ensure sufficient touch targets on mobile nav etc. */
@media (max-width: 767.98px) {
  .nav-link {
    padding-block: 0.6rem;
  }
}