/* ============================================
   XENOM BAD BOARS EDITION — Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colori principali */
  --bg-primary: #0A0A0A;
  --bg-secondary: #141414;
  --bg-tertiary: #1E1E1E;
  --bg-card: #111111;
  --bg-card-hover: #1A1A1A;

  /* Accenti */
  --accent-primary: #FF3C00;
  --accent-secondary: #FF6B35;
  --accent-gold: #D4A843;
  --accent-glow: rgba(255, 60, 0, 0.3);

  /* Testo */
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-muted: #666666;

  /* Semantici */
  --color-success: #00E676;
  --color-danger: #FF1744;
  --color-info: #448AFF;

  /* Categorie eventi */
  --cat-forza: #FF3C00;
  --cat-ginnastica: #7C4DFF;
  --cat-cardio: #00E676;
  --cat-metcon: #FF6B35;
  --cat-mystery: #666666;

  /* Tipografia */
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-heading: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;

  /* Spaziatura */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 8rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 50%;

  /* Transizioni */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Ombre */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Focus visible per navigazione da tastiera */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}

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

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

/* --- Tipografia --- */
h1, h2, h3, h4 {
  color: var(--text-primary);
  line-height: 1.1;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 600;
}

h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
}

p {
  font-size: 1rem;
  max-width: 65ch;
}

.text-accent { color: var(--accent-primary); }
.text-gold { color: var(--accent-gold); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

.font-display { font-family: var(--font-display); }
.font-heading { font-family: var(--font-heading); }
.font-mono { font-family: var(--font-mono); }

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background-color: var(--bg-secondary);
}

.flex {
  display: flex;
}

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

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

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.grid {
  display: grid;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* --- Componenti Base --- */

/* Badge categoria */
.badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.badge--forza { background: var(--cat-forza); color: white; }
.badge--ginnastica { background: var(--cat-ginnastica); color: white; }
.badge--cardio { background: var(--cat-cardio); color: #0A0A0A; }
.badge--metcon { background: var(--cat-metcon); color: white; }
.badge--mystery { background: var(--cat-mystery); color: white; }

/* Bottoni */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn--primary {
  background: var(--accent-primary);
  color: white;
}

.btn--primary:hover {
  background: var(--accent-secondary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--accent-primary);
}

.btn--outline:hover {
  background: var(--accent-primary);
  color: white;
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 60, 0, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Divider */
.divider {
  width: 60px;
  height: 4px;
  background: var(--accent-primary);
  border: none;
  margin: var(--space-md) 0;
}

.divider--center {
  margin: var(--space-md) auto;
}

/* --- Animazioni --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Glitch effect per Evento 6 */
@keyframes glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  60% { transform: translate(-1px, -1px); }
  80% { transform: translate(1px, 1px); }
}

.glitch {
  animation: glitch 0.3s ease infinite;
}

/* Pulse glow */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 5px var(--accent-glow); }
  50% { box-shadow: 0 0 25px var(--accent-glow); }
}

/* Shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-card-hover) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s ease infinite;
}

/* --- Responsive --- */
@media (max-width: 1199px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 5rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--space-2xl) 0;
  }
}