/* =========================================================
   Variables (CSS Custom Properties)
   ========================================================= */
:root {
  /* Color palette - dark neon nightlife */
  --color-bg: #05060a;
  --color-bg-elevated: #0a0c12;
  --color-bg-soft: #121520;
  --color-surface-glass: rgba(15, 20, 35, 0.8);
  --color-surface-glass-strong: rgba(10, 15, 30, 0.95);

  --color-text: #f5f7ff;
  --color-text-muted: #a3a9c4;
  --color-text-soft: #7b81a0;
  --color-border-subtle: rgba(255, 255, 255, 0.08);

  --color-primary: #ff3b5c; /* neon red */
  --color-primary-soft: rgba(255, 59, 92, 0.18);
  --color-primary-strong: #ff1744;

  --color-success: #29f39a; /* acid green */
  --color-warning: #ffd644; /* bright yellow */
  --color-danger: #ff1744;

  --color-accent-green: #10ff88;
  --color-accent-yellow: #ffe45e;

  --color-gray-50: #f8fafc;
  --color-gray-100: #e2e8f0;
  --color-gray-200: #cbd5f5;
  --color-gray-300: #94a3b8;
  --color-gray-400: #64748b;
  --color-gray-500: #475569;
  --color-gray-600: #334155;
  --color-gray-700: #1f2937;
  --color-gray-800: #111827;
  --color-gray-900: #020617;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Eurostile", "Orbitron", "Rajdhani", 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: 1.1;
  --line-height-snug: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 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-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows (neon / soft) */
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.6);
  --shadow-strong: 0 28px 80px rgba(0, 0, 0, 0.85);
  --shadow-neon-red: 0 0 25px rgba(255, 59, 92, 0.65);
  --shadow-neon-green: 0 0 23px rgba(16, 255, 136, 0.6);
  --shadow-neon-yellow: 0 0 20px rgba(255, 212, 96, 0.55);

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

  /* Layout */
  --container-max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

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

ul, ol {
  margin: 0;
  padding: 0;
}

/* Required technical note */
ul {
  list-style: none !important;
}

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;
}

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

:focus {
  outline: none;
}

/* =========================================================
   Base Styles (Dark Futuristic Event Theme)
   ========================================================= */
body {
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); margin-bottom: var(--space-4); }
h2 { font-size: var(--font-size-4xl); margin-bottom: var(--space-3); }
h3 { font-size: var(--font-size-3xl); margin-bottom: var(--space-3); }
h4 { font-size: var(--font-size-2xl); margin-bottom: var(--space-2); }
h5 { font-size: var(--font-size-xl); margin-bottom: var(--space-2); }
h6 { font-size: var(--font-size-lg); margin-bottom: var(--space-2); }

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

strong, b {
  font-weight: 600;
}

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

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

a:hover {
  color: var(--color-primary);
  text-shadow: 0 0 12px rgba(255, 59, 92, 0.7);
}

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

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

hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-8) 0;
}

/* =========================================================
   Accessibility & Motion
   ========================================================= */
:focus-visible {
  outline: 2px solid var(--color-accent-green);
  outline-offset: 3px;
}

@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;
  }
}

/* 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;
}

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

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

/* Layout 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;
}

.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);
  }
}

/* Spacing utilities (examples; extend as needed) */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.py-section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (max-width: 768px) {
  .py-section {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }

/* Neon / glass helpers */
.surface-glass {
  background: var(--color-surface-glass);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.surface-glass-strong {
  background: var(--color-surface-glass-strong);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.neon-border-red {
  border: 1px solid rgba(255, 59, 92, 0.85);
  box-shadow: var(--shadow-neon-red);
}

.neon-border-green {
  border: 1px solid rgba(16, 255, 136, 0.8);
  box-shadow: var(--shadow-neon-green);
}

.neon-border-yellow {
  border: 1px solid rgba(255, 212, 96, 0.8);
  box-shadow: var(--shadow-neon-yellow);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.5), transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.4), transparent 60%),
              rgba(10, 12, 18, 0.9);
}

/* Hero overlay utility for full-width backgrounds */
.hero-overlay {
  position: relative;
  isolation: isolate;
}

.hero-overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 59, 92, 0.55), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(16, 255, 136, 0.4), transparent 55%),
    radial-gradient(circle at 50% 90%, rgba(255, 212, 96, 0.35), transparent 60%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.78), rgba(0, 0, 0, 0.94));
  mix-blend-mode: soft-light;
  pointer-events: none;
  z-index: 1;
}

.hero-content-panel {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding: var(--space-6) var(--space-6) var(--space-6);
  background: linear-gradient(135deg, rgba(8, 12, 22, 0.96), rgba(14, 18, 32, 0.98));
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow-soft), var(--shadow-neon-red);
}

/* =========================================================
   Navigation helpers (header & burger)
   ========================================================= */
.header-blur {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  background: linear-gradient(90deg, rgba(5, 6, 10, 0.92), rgba(10, 14, 24, 0.96));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-bar {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.nav-link {
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-green), var(--color-warning));
  box-shadow: 0 0 12px rgba(255, 59, 92, 0.8);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

/* Burger toggle - required flex-direction: column */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.45), transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.45), transparent 60%),
              #05060a;
  border: 1px solid rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #ffffff;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-warning);
  outline-offset: 3px;
}

.nav-toggle:hover {
  box-shadow: var(--shadow-neon-red);
  transform: translateY(-1px);
}

@media (max-width: 960px) {
  .nav-links {
    position: fixed;
    inset: var(--nav-height) 0 auto 0;
    padding: var(--space-6) var(--space-4) var(--space-8);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    background: radial-gradient(circle at 10% 0, rgba(255, 59, 92, 0.35), transparent 60%),
                radial-gradient(circle at 100% 0, rgba(16, 255, 136, 0.35), transparent 60%),
                rgba(5, 6, 10, 0.98);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }

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

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

/* Buttons */
.btn {
  --btn-bg: var(--color-primary);
  --btn-bg-hover: var(--color-primary-strong);
  --btn-color: #ffffff;

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--btn-color);
  background: radial-gradient(circle at 0 0, rgba(255, 212, 96, 0.45), transparent 55%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.45), transparent 55%),
              var(--btn-bg);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), var(--shadow-neon-red);
  cursor: pointer;
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast),
    border-color var(--transition-base),
    color var(--transition-base);
}

.btn::after {
  content: "";
  position: absolute;
  inset: 2px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.18);
  opacity: 0.8;
  pointer-events: none;
}

.btn:hover:not(:disabled) {
  --btn-bg: var(--btn-bg-hover);
  box-shadow: var(--shadow-neon-red), 0 0 30px rgba(255, 212, 96, 0.5);
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 0 0 1px rgba(255, 59, 92, 0.6);
}

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

.btn-outline {
  --btn-bg: transparent;
  --btn-bg-hover: rgba(255, 59, 92, 0.12);
  --btn-color: var(--color-text);

  background: linear-gradient(135deg, rgba(8, 12, 22, 0.92), rgba(12, 18, 30, 0.96));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.btn-outline:hover:not(:disabled) {
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.38), transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.35), transparent 60%),
              rgba(8, 12, 22, 0.98);
}

.btn-ghost {
  --btn-bg: transparent;
  --btn-bg-hover: rgba(255, 255, 255, 0.06);
  --btn-color: var(--color-text-muted);

  background: transparent;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}

.btn-ghost:hover:not(:disabled) {
  background: linear-gradient(90deg, rgba(255, 59, 92, 0.12), rgba(16, 255, 136, 0.12));
  color: var(--color-text);
}

/* Inputs & Form controls */
input,
select,
textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.12), transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.12), transparent 60%),
              rgba(3, 6, 18, 0.96);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

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

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-accent-green);
  box-shadow: 0 0 0 1px rgba(16, 255, 136, 0.6), var(--shadow-neon-green);
}

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

label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.form-row > * {
  flex: 1 1 220px;
}

.form-helper {
  margin-top: 0.3rem;
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

.form-error {
  margin-top: 0.3rem;
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Cards (futuristic / glassmorphism) */
.card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.18), transparent 55%),
              radial-gradient(circle at 100% 100%, rgba(16, 255, 136, 0.16), transparent 55%),
              linear-gradient(145deg, rgba(6, 9, 18, 0.96), rgba(12, 18, 30, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.4), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(255, 212, 96, 0.35), transparent 55%);
  opacity: 0;
  mix-blend-mode: soft-light;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong), var(--shadow-neon-red);
  border-color: rgba(255, 255, 255, 0.22);
}

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

.card-header {
  margin-bottom: var(--space-3);
}

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

.card-meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-soft);
}

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

/* Gallery preview / image card */
.card-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.card:hover .card-media img {
  transform: scale(1.08);
  filter: saturate(1.2);
}

.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent 70%);
  mix-blend-mode: soft-light;
}

/* FAQ accordion (basic structure styling; behavior via JS) */
.faq-item {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(145deg, rgba(6, 9, 18, 0.96), rgba(12, 18, 30, 0.98));
  padding: var(--space-4) var(--space-5);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  cursor: pointer;
}

.faq-question-text {
  font-size: var(--font-size-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.faq-toggle-icon {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.faq-answer {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Tag strip for event formats in hero */
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: var(--space-3);
}

/* =========================================================
   Footer basics
   ========================================================= */
.site-footer {
  padding: var(--space-10) 0 var(--space-6);
  background: radial-gradient(circle at 0 0, rgba(255, 59, 92, 0.24), transparent 60%),
              radial-gradient(circle at 100% 0, rgba(16, 255, 136, 0.24), transparent 60%),
              #020309;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-meta {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

/* =========================================================
   Responsive typography tweaks
   ========================================================= */
@media (max-width: 960px) {
  h1 { font-size: 2.4rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.6rem; }
}

@media (max-width: 640px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.7rem; }
  h3 { font-size: 1.4rem; }
  .hero-content-panel {
    padding: var(--space-5) var(--space-4);
  }
}