/* =========================================================
   Variables
   ========================================================= */
:root {
  /* Color Palette */
  --color-bg: #06070b; /* Deep charcoal backdrop */
  --color-surface: #10121a;
  --color-surface-soft: #181b26;

  --color-text: #f8f9ff;
  --color-text-soft: #d7dbff;
  --color-text-muted: #9aa0c6;

  --color-primary: #00e5ff; /* Vivid cyan */
  --color-primary-soft: rgba(0, 229, 255, 0.12);

  --color-secondary: #ff2ad4; /* Magenta */
  --color-secondary-soft: rgba(255, 42, 212, 0.12);

  --color-accent-yellow: #ffd933; /* Sun-yellow */
  --color-accent-yellow-soft: rgba(255, 217, 51, 0.18);

  --color-success: #00d27a;
  --color-warning: #ffb547;
  --color-danger: #ff3366;

  --color-border-subtle: rgba(248, 249, 255, 0.09);
  --color-border-strong: rgba(248, 249, 255, 0.18);

  --color-overlay: rgba(3, 4, 10, 0.72);

  /* Neutral Grays (for light elements on dark background) */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'SF Pro Text',
    'Segoe UI', Roboto, 'Noto Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'SF Pro Display', system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Noto Sans', 'Helvetica Neue', Arial, sans-serif;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-md: 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: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* 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-7: 1.75rem;  /* 28px */
  --space-8: 2rem;     /* 32px */
  --space-9: 2.25rem;  /* 36px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-14: 3.5rem;  /* 56px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

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

  /* Shadows (slightly neon / glow for playful vibe) */
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-strong: 0 18px 50px rgba(0, 0, 0, 0.55);
  --shadow-glow-primary: 0 0 24px rgba(0, 229, 255, 0.7);
  --shadow-glow-secondary: 0 0 24px rgba(255, 42, 212, 0.7);

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

  /* Layout */
  --container-width: 1120px;
  --container-gutter: 1.5rem;
}

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  -webkit-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;
}

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

img,
video {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  margin: 0;
}

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

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

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

/* Respect prefers-reduced-motion */
@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;
  }
}

/* =========================================================
   Base Styles
   ========================================================= */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background: radial-gradient(circle at top left, rgba(0, 229, 255, 0.16), transparent 55%),
    radial-gradient(circle at top right, rgba(255, 42, 212, 0.16), transparent 55%),
    radial-gradient(circle at bottom, rgba(255, 217, 51, 0.16), transparent 55%),
    var(--color-bg);
  color: var(--color-text);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

/* Headings (Hungarian content, energetic tone) */
h1,
 h2,
 h3,
 h4,
 h5,
 h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: 0.01em;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.5rem, 4vw, var(--font-size-5xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(2rem, 3vw, var(--font-size-4xl));
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: clamp(1.5rem, 2.4vw, var(--font-size-3xl));
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-4);
  margin-bottom: var(--space-1);
}

h6 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-3);
  margin-bottom: var(--space-1);
}

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

strong,
 b {
  font-weight: 600;
}

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

/* Links (playful hover without default underline) */
a {
  position: relative;
  cursor: pointer;
  transition: color var(--transition-normal),
    transform var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

a:active {
  transform: translateY(1px) scale(0.99);
}

/* Optional animated underline for nav-style links */
a[data-underline='true']::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 100%;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

a[data-underline='true']:hover::after,
 a[data-underline='true']:focus-visible::after {
  transform: scaleX(1);
}

/* Lists */
ul,
ol {
  list-style: none;
}

/* =========================================================
   Accessibility / Focus Styles
   ========================================================= */
:focus-visible {
  outline: 2px solid var(--color-accent-yellow);
  outline-offset: 3px;
}

/* High-contrast focus for key interactive elements */
button:focus-visible,
 a:focus-visible,
 input:focus-visible,
 select:focus-visible,
 textarea:focus-visible {
  box-shadow: 0 0 0 2px rgba(6, 7, 11, 0.9),
    0 0 0 4px var(--color-primary);
}

/* Screen reader only utility */
.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
   ========================================================= */

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

/* Centered full-viewport hero container */
.hero-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-12);
}

/* 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-column {
  display: flex;
  flex-direction: column;
}

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

.gap-xs {
  gap: var(--space-1);
}

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

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

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

/* Grid helpers for gallery / infographics */
.grid {
  display: grid;
}

.grid-auto-fit-sm {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.grid-auto-fit-md {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

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

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

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

/* Color utilities for mode badges (Solo, VS, Teams) */
.badge-solo {
  color: #02030a;
  background: var(--color-primary-soft);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.8rem;
  border: 1px solid rgba(0, 229, 255, 0.6);
}

.badge-vs {
  color: #02030a;
  background: var(--color-secondary-soft);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.8rem;
  border: 1px solid rgba(255, 42, 212, 0.6);
}

.badge-teams {
  color: #02030a;
  background: var(--color-accent-yellow-soft);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.8rem;
  border: 1px solid rgba(255, 217, 51, 0.7);
}

/* Spacing utilities (bottom margins commonly used) */
.mb-0 {
  margin-bottom: 0 !important;
}

.mb-xs {
  margin-bottom: var(--space-1) !important;
}

.mb-sm {
  margin-bottom: var(--space-2) !important;
}

.mb-md {
  margin-bottom: var(--space-4) !important;
}

.mb-lg {
  margin-bottom: var(--space-6) !important;
}

.mt-lg {
  margin-top: var(--space-6) !important;
}

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

/* Simple glowing divider for energetic sections */
.section-divider {
  width: 72px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent-yellow));
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.7);
}

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

/* Buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-md);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #02030a;
  box-shadow: var(--shadow-strong), var(--shadow-glow-primary);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    filter var(--transition-fast),
    background var(--transition-normal);
}

.btn:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: var(--shadow-strong), var(--shadow-glow-secondary);
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: var(--shadow-soft);
}

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

/* Button variants */
.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(248, 249, 255, 0.35);
  box-shadow: none;
}

.btn--outline:hover {
  background: rgba(248, 249, 255, 0.04);
  box-shadow: var(--shadow-soft);
}

.btn--ghost {
  background: rgba(16, 18, 26, 0.6);
  color: var(--color-text-soft);
  border-color: rgba(248, 249, 255, 0.08);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(24, 27, 38, 0.9);
}

.btn--download {
  padding-inline: 1.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* Inputs */
.input,
 select,
 textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background: rgba(10, 12, 20, 0.92);
  color: var(--color-text);
  font-size: var(--font-size-md);
  transition: border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background-color var(--transition-normal);
}

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

.input:focus,
 select:focus,
 textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.4), var(--shadow-soft);
}

.input:disabled,
 select:disabled,
 textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Cards (for mode highlights, compatibility blocks, galleries) */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: radial-gradient(circle at top left, rgba(0, 229, 255, 0.2), transparent 55%),
    radial-gradient(circle at bottom right, rgba(255, 42, 212, 0.16), transparent 55%),
    var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card--soft {
  background: var(--color-surface-soft);
  box-shadow: none;
}

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

.card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-1);
}

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

/* Simple pill tag row for platform / compatibility */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: var(--space-3);
}

.tag {
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(248, 249, 255, 0.14);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

/* Gallery item wrapper for energetic screenshots */
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow),
    filter var(--transition-slow);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, transparent 30%, rgba(0, 0, 0, 0.45));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.06);
  filter: saturate(1.15);
}

.gallery-item:hover::after {
  opacity: 1;
}

/* Info chip row for small infographics */
.info-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.info-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(16, 18, 26, 0.9);
  border: 1px solid var(--color-border-subtle);
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

/* Toast-like highlight for success/warning/danger states */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: rgba(16, 18, 26, 0.9);
  border: 1px solid var(--color-border-subtle);
}

.alert--success {
  border-color: rgba(0, 210, 122, 0.6);
}

.alert--warning {
  border-color: rgba(255, 181, 71, 0.7);
}

.alert--danger {
  border-color: rgba(255, 51, 102, 0.7);
}

/* =========================================================
   Motion helpers (subtle, respects reduced motion)
   ========================================================= */

.motion-float {
  transform: translateY(0);
  transition: transform 260ms ease-out;
}

.motion-float:hover {
  transform: translateY(-4px);
}

@media (prefers-reduced-motion: reduce) {
  .motion-float,
  .gallery-item img {
    transition: none !important;
  }
}