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

:root {
  /* Color Palette */
  --color-background: #050814;
  --color-surface: #0e1222;
  --color-surface-elevated: #151a2b;
  --color-text: #f5f7ff;
  --color-text-muted: #a5abc4;
  --color-primary: #f44336; /* casino red */
  --color-primary-soft: rgba(244, 67, 54, 0.15);
  --color-success: #32d296;
  --color-warning: #ffb02e;
  --color-danger: #ff3366;

  --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: #1f2933;
  --color-gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", 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: 1.6;

  /* Spacing scale (px) */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radius */
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-soft: 0 10px 25px rgba(0, 0, 0, 0.35);
  --shadow-strong: 0 18px 45px rgba(0, 0, 0, 0.6);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 220ms ease-out;
  --transition-slow: 320ms ease-out;
}

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

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

html,
body {
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

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

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none !important;
}

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

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

/* ========================================================================== *
   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 top, #151a2b 0%, #050814 55%, #020309 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 60vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-snug);
  color: var(--color-text);
}

h1 {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  letter-spacing: 0.03em;
}

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

h3 {
  font-size: var(--font-size-2xl);
}

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

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

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

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

strong {
  font-weight: 600;
}

/* Links */

a {
  position: relative;
  color: var(--color-text);
  transition: color var(--transition-base), opacity var(--transition-base);
}

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-danger));
  transition: width var(--transition-base);
}

a:hover::after {
  width: 100%;
}

a:hover,
a:focus-visible {
  color: #fff !important;
}

/* ========================================================================== *
   Accessibility & Motion
   ========================================================================== */

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

:focus {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* 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;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-6);
  }
}

.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;
}

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

.mt-section {
  margin-top: var(--space-16);
}

.mb-section {
  margin-bottom: var(--space-16);
}

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

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

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--color-primary), var(--color-danger));
  color: #fff;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), opacity var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
  color: #fff !important;
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 3px;
}

.btn--ghost {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(148, 163, 184, 0.6);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(15, 23, 42, 1);
  border-color: var(--color-primary);
}

.btn[disabled],
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

/* Form Elements */

.input,
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.85);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

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

.input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(244, 67, 54, 0.75);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Cards */

.card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(244, 67, 54, 0.12), transparent 55%),
              radial-gradient(circle at bottom right, rgba(0, 0, 0, 0.8), #050814);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(244, 67, 54, 0.2), transparent 40%, rgba(255, 255, 255, 0.03));
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.card:hover::before {
  opacity: 1;
}

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

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

.card-meta {
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* Tag / Pill for formats like "Poker Night", "Casino" */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(244, 67, 54, 0.5);
  color: var(--color-text);
}

/* ========================================================================== *
   Thematic Helpers (Casino / Nightlife)
   ========================================================================== */

.glow-primary {
  text-shadow: 0 0 18px rgba(244, 67, 54, 0.8);
}

.chip-line {
  position: relative;
  padding-block: var(--space-4);
}

.chip-line::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(248, 250, 252, 0.3), transparent);
}

.chip-line-content {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-4);
  padding-block: var(--space-1);
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.7));
  border: 1px solid rgba(148, 163, 184, 0.4);
}