/* ========================================================================
   Variables
   ===================================================================== */
:root {
  /* Colors - Core */
  --color-background: #fdfdff;
  --color-surface: rgba(255, 255, 255, 0.85);
  --color-surface-strong: #ffffff;
  --color-text: #1f2933;
  --color-text-muted: #6b7280;
  --color-border-subtle: rgba(148, 163, 184, 0.25);

  /* Brand & semantic */
  --color-primary: #12a4ff; /* light cyan/blue for main actions */
  --color-primary-soft: rgba(18, 164, 255, 0.12);
  --color-success: #22c55e;
  --color-warning: #fbbf24;
  --color-danger: #e11d48;

  /* Rainbow pastel accents */
  --color-accent-turquoise: #5ce1e6;
  --color-accent-blue: #7dd3fc;
  --color-accent-pink: #f9a8d4;
  --color-accent-lavender: #c4b5fd;
  --color-accent-yellow: #fef3c7;

  /* Neutral grays */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Special: fixed 21+ banner */
  --color-age-banner-bg: #d72638;
  --color-age-banner-text: #ffffff;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "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: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.125rem;  /* 2px */
  --space-2: 0.25rem;   /* 4px */
  --space-3: 0.375rem;  /* 6px */
  --space-4: 0.5rem;    /* 8px */
  --space-5: 0.625rem;  /* 10px */
  --space-6: 0.75rem;   /* 12px */
  --space-7: 0.875rem;  /* 14px */
  --space-8: 1rem;      /* 16px */
  --space-10: 1.25rem;  /* 20px */
  --space-12: 1.5rem;   /* 24px */
  --space-16: 2rem;     /* 32px */
  --space-20: 2.5rem;   /* 40px */
  --space-24: 3rem;     /* 48px */
  --space-28: 3.5rem;   /* 56px */
  --space-32: 4rem;     /* 64px */
  --space-40: 5rem;     /* 80px */
  --space-48: 6rem;     /* 96px */

  /* Radius */
  --radius-xs: 0.25rem;   /* 4px */
  --radius-sm: 0.5rem;    /* 8px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1rem;      /* 16px */
  --radius-xl: 1.5rem;    /* 24px */
  --radius-pill: 999px;

  /* Shadows (soft for glassmorphism) */
  --shadow-xs: 0 4px 10px rgba(15, 23, 42, 0.06);
  --shadow-sm: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-soft-inner: inset 0 0 0 1px rgba(255, 255, 255, 0.4);

  /* Glassmorphism overlays */
  --glass-bg: rgba(255, 255, 255, 0.16);
  --glass-border: rgba(255, 255, 255, 0.7);
  --glass-blur: 18px;

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease-out;

  /* Layout */
  --container-max-width: 1120px;
  --container-padding-x: 1.25rem; /* 20px */

  /* Z-indices */
  --z-age-banner: 50;
  --z-header: 40;
  --z-overlay: 60;
  --z-toast: 70;
}

/* Larger typography on wider screens */
@media (min-width: 768px) {
  :root {
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
  }
}

/* ========================================================================
   Reset / Normalize
   ===================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

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

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

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

textarea {
  resize: vertical;
}

a {
  text-decoration: none;
  color: inherit;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

body,
html {
  min-height: 100%;
}

/* Respect reduced motion */
@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;
    scroll-behavior: auto !important;
  }
}

/* ========================================================================
   Base Styles
   ===================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background:
    radial-gradient(circle at 0% 0%, rgba(92, 225, 230, 0.20), transparent 55%),
    radial-gradient(circle at 100% 0%, rgba(244, 114, 182, 0.20), transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(196, 181, 253, 0.18), transparent 50%),
    var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-gray-900);
}

h1 {
  font-size: var(--font-size-4xl);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-8);
}

h2 {
  font-size: var(--font-size-3xl);
  line-height: var(--line-height-snug);
  margin-top: var(--space-24);
  margin-bottom: var(--space-6);
}

h3 {
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-snug);
  margin-top: var(--space-16);
  margin-bottom: var(--space-4);
}

h4 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-3);
}

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

p:last-child {
  margin-bottom: 0;
}

small {
  font-size: var(--font-size-sm);
}

strong {
  font-weight: 600;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-normal),
    opacity var(--transition-fast),
    text-shadow var(--transition-fast);
}

a:hover {
  color: #0b8bd8;
}

a:focus-visible {
  outline: 2px solid rgba(18, 164, 255, 0.7);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* Lists */
ul,
ol {
  padding-left: 1.25rem;
  margin-top: 0;
  margin-bottom: var(--space-4);
}

/* ========================================================================
   Accessibility Helpers
   ===================================================================== */
:focus-visible {
  outline: 2px solid rgba(18, 164, 255, 0.9);
  outline-offset: 3px;
}

[tabindex="-1"]:focus {
  outline: none !important;
}

.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;
}

/* ========================================================================
   Layout Utilities
   ===================================================================== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding-x);
  padding-right: var(--container-padding-x);
  max-width: var(--container-max-width);
}

.section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
  }
}

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

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

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

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

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

.gap-4 {
  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: 767px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Alignment & spacing utilities */
.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-8); }
.mt-6 { margin-top: var(--space-12); }
.mt-8 { margin-top: var(--space-16); }
.mt-10 { margin-top: var(--space-20); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-8); }
.mb-6 { margin-bottom: var(--space-12); }
.mb-8 { margin-bottom: var(--space-16); }
.mb-10 { margin-bottom: var(--space-20); }

.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }

.hidden {
  display: none !important;
}

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

/* Fixed 21+ banner (global) */
.age-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-age-banner);
  background-color: var(--color-age-banner-bg);
  color: var(--color-age-banner-text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-align: center;
  padding: var(--space-3) var(--space-8);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.age-banner__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.age-banner__label {
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.65);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

/* Ensure main content is not hidden under banner */
.has-age-banner {
  padding-top: 2.5rem; /* tweak depending on final banner height */
}

@media (min-width: 768px) {
  .age-banner {
    font-size: var(--font-size-sm);
    padding: var(--space-2) var(--space-8);
  }

  .has-age-banner {
    padding-top: 2.75rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--font-size-sm);
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast);
}

.btn-primary {
  color: #ffffff;
  background-image: linear-gradient(135deg,
    var(--color-accent-turquoise),
    var(--color-accent-blue),
    var(--color-accent-pink)
  );
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.03);
}

.btn-outline {
  color: var(--color-gray-800);
  background-color: rgba(255, 255, 255, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
  box-shadow: var(--shadow-xs);
  backdrop-filter: blur(var(--glass-blur));
}

.btn-outline:hover {
  border-color: rgba(148, 163, 184, 0.7);
  background-color: rgba(255, 255, 255, 0.95);
}

.btn-ghost {
  color: var(--color-gray-800);
  background-color: transparent;
}

.btn-ghost:hover {
  background-color: rgba(148, 163, 184, 0.10);
}

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

.btn:focus-visible {
  outline: 2px solid rgba(18, 164, 255, 0.85);
  outline-offset: 2px;
}

/* Inputs & form controls */
.input,
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background-color var(--transition-normal),
    transform var(--transition-fast);
}

.input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus,
select:focus,
textarea:focus {
  border-color: rgba(18, 164, 255, 0.8);
  box-shadow: 0 0 0 1px rgba(18, 164, 255, 0.7), var(--shadow-xs);
  outline: none;
  background-color: #ffffff;
}

.input[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: rgba(225, 29, 72, 0.8);
}

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

.form-field {
  margin-bottom: var(--space-4);
}

.form-helper {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

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

/* Cards - rainbow glassmorphism */
.card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: linear-gradient(145deg,
      rgba(255, 255, 255, 0.92),
      rgba(255, 255, 255, 0.80)
    );
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(255, 255, 255, 0.7);
  overflow: hidden;
}

.card--glass {
  background: radial-gradient(circle at 0% 0%,
        rgba(92, 225, 230, 0.18),
        transparent 60%),
      radial-gradient(circle at 100% 0%,
        rgba(244, 114, 182, 0.16),
        transparent 55%),
      radial-gradient(circle at 0% 100%,
        rgba(196, 181, 253, 0.18),
        transparent 60%),
      var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md), var(--shadow-soft-inner);
}

.card--pill {
  border-radius: 2rem;
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card-footer {
  margin-top: var(--space-4);
}

/* Hero section helper (fullscreen option) */
.hero {
  min-height: calc(100vh - 3rem); /* account for banner & nav */
  display: flex;
  align-items: center;
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

@media (min-width: 768px) {
  .hero {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
  }
}

/* Timeline baseline styles (for event timeline) */
.timeline {
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(148, 163, 184, 0.4);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-8);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -0.65rem;
  top: 0.25rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg,
    var(--color-accent-turquoise),
    var(--color-accent-pink)
  );
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.8);
}

/* Masonry-like grid helper for gallery */
.gallery-grid {
  column-count: 1;
  column-gap: var(--space-4);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}

@media (min-width: 640px) {
  .gallery-grid {
    column-count: 2;
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    column-count: 3;
  }
}

/* FAQ accordion basics */
.accordion-item {
  border-radius: var(--radius-lg);
  background-color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.accordion-header {
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.accordion-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.accordion-body {
  padding: 0 var(--space-5) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* Pills / badges (for categories like Poker, Ruleta, Blackjack) */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background-color: rgba(255, 255, 255, 0.9);
}

.badge--poker {
  border-color: rgba(244, 114, 182, 0.6);
  background-color: rgba(244, 114, 182, 0.08);
  color: #db2777;
}

.badge--ruleta {
  border-color: rgba(56, 189, 248, 0.6);
  background-color: rgba(56, 189, 248, 0.08);
  color: #0284c7;
}

.badge--blackjack {
  border-color: rgba(34, 197, 94, 0.6);
  background-color: rgba(34, 197, 94, 0.08);
  color: #15803d;
}

/* Sticky CTA helper (e.g., "Poptávka akce") */
.sticky-cta {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: var(--z-header);
}

@media (min-width: 768px) {
  .sticky-cta {
    right: 2rem;
    bottom: 2rem;
  }
}

/* Simple stats styling (animated via JS) */
.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  line-height: var(--line-height-tight);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Footer basics */
.footer {
  padding-top: var(--space-20);
  padding-bottom: var(--space-10);
  background: linear-gradient(180deg,
    rgba(15, 23, 42, 0.03),
    rgba(15, 23, 42, 0.12)
  );
  border-top: 1px solid rgba(148, 163, 184, 0.3);
}

.footer-columns {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer-columns {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.footer-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.footer-link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

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

.footer-disclaimer {
  margin-top: var(--space-10);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ========================================================================
   Helper Classes for Theming Sections
   ===================================================================== */
.section--light {
  background-color: rgba(255, 255, 255, 0.92);
}

.section--muted {
  background-color: rgba(249, 250, 251, 0.95);
}

.section--gradient-rainbow {
  background: linear-gradient(135deg,
    rgba(92, 225, 230, 0.20),
    rgba(125, 211, 252, 0.20),
    rgba(244, 114, 182, 0.20),
    rgba(196, 181, 253, 0.22)
  );
}

.badge--age {
  background-color: rgba(215, 38, 56, 0.1);
  color: var(--color-age-banner-bg);
  border-color: rgba(215, 38, 56, 0.5);
}