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

:root {
  /* Color Palette */
  --color-background: #05060a;
  --color-background-elevated: #0b0d14;
  --color-surface: #11131c;
  --color-surface-soft: #171a24;
  --color-text: #f7f7ff;
  --color-text-muted: #a4a8c3;
  --color-border-subtle: #25293a;

  --color-primary: #3ef3ff; /* neon cyan */
  --color-primary-soft: rgba(62, 243, 255, 0.12);
  --color-primary-strong: #23c3d0;

  --color-accent: #a855ff; /* neon purple */
  --color-accent-soft: rgba(168, 85, 255, 0.18);

  --color-success: #3dd68c;
  --color-warning: #facc15;
  --color-danger: #fb4b5a;

  --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, 'Inter', 'SF Pro Text',
    'Segoe UI', sans-serif;
  --font-display: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

  --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: 1.7;

  /* 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-8: 1rem;      /* 16px */
  --space-10: 1.25rem;  /* 20px */
  --space-12: 1.5rem;   /* 24px */
  --space-14: 1.75rem;  /* 28px */
  --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: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 999px;

  /* Shadows */
  --shadow-soft:
    0 18px 45px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(148, 163, 184, 0.03);
  --shadow-elevated:
    0 28px 80px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(148, 163, 184, 0.06);
  --shadow-glow-primary:
    0 0 22px rgba(62, 243, 255, 0.5),
    0 0 60px rgba(62, 243, 255, 0.25);

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

  /* Layout */
  --layout-max-width: 1200px;
  --layout-max-width-wide: 1440px;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0.01ms;
    --transition-base: 0.01ms;
    --transition-slow: 0.01ms;
  }
}

/* ========================================================================
   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[class],
ol[class] {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

img {
  height: auto;
}

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

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

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

textarea {
  resize: vertical;
}

[hidden] {
  display: none !important;
}

::selection {
  background: rgba(62, 243, 255, 0.25);
  color: var(--color-text);
}

/* ========================================================================
   Base Styles
   ======================================================================== */

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  min-height: 60vh;
}

/* Headings - tech-inspired, bold, scalable */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-top: 0;
  margin-bottom: var(--space-10);
}

h1 {
  font-size: clamp(2.4rem, 3.4vw, var(--font-size-5xl));
  line-height: var(--line-height-tight);
}

h2 {
  font-size: clamp(1.9rem, 2.6vw, var(--font-size-4xl));
  line-height: var(--line-height-tight);
}

h3 {
  font-size: clamp(1.5rem, 2vw, var(--font-size-3xl));
  line-height: var(--line-height-snug);
}

h4 {
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-snug);
}

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

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

p {
  margin-bottom: var(--space-10);
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

pre {
  padding: var(--space-10);
  border-radius: var(--radius-md);
  background: radial-gradient(circle at top left, #151829 0, #070812 55%, #020308 100%);
  box-shadow: var(--shadow-soft);
  overflow-x: auto;
}

/* Links */

a {
  color: var(--color-primary);
  text-decoration: none;
  position: relative;
  transition:
    color var(--transition-base),
    text-shadow var(--transition-base);
}

a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform-origin: left;
  transform: scaleX(0);
  opacity: 0.7;
  transition: transform var(--transition-base);
}

a:hover {
  color: #fff;
  text-shadow: 0 0 12px rgba(62, 243, 255, 0.7);
}

a:hover::after {
  transform: scaleX(1);
}

a:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 2px #000, 0 0 0 4px var(--color-primary);
  border-radius: 2px;
}

/* Lists */

ul,
ol {
  padding-left: 1.2rem;
  margin-bottom: var(--space-10);
}

/* ========================================================================
   Accessibility & Focus
   ======================================================================== */

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.8), 0 0 0 4px var(--color-primary);
}

@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;
  }
}

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

/* Layout containers */

.container {
  width: 100%;
  max-width: var(--layout-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.container--wide {
  max-width: var(--layout-max-width-wide);
}

.section {
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
}

.section--dense {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

/* Flex/grid helpers */

.flex {
  display: flex;
}

.flex-row {
  flex-direction: row;
}

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

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

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

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

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

.justify-center {
  justify-content: center;
}

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

.gap-sm {
  gap: var(--space-8);
}

.gap-md {
  gap: var(--space-12);
}

.gap-lg {
  gap: var(--space-20);
}

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-16);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-20);
}

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

/* 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;
}

/* Utility text colors */

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

.text-accent {
  color: var(--color-accent);
}

.text-primary {
  color: var(--color-primary);
}

/* Utility backgrounds */

.bg-surface {
  background-color: var(--color-surface);
}

.bg-elevated {
  background-color: var(--color-background-elevated);
}

/* Max width helpers for readable content */

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

/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(62, 243, 255, 0.5);
  background-image: linear-gradient(135deg, #14b8c2 0%, #0f172a 35%, #4c1d95 100%);
  color: #f9fafb;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    background-position var(--transition-slow);
  background-size: 200% 200%;
  background-position: 0% 50%;
}

.button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(62, 243, 255, 0.28), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-primary);
  border-color: rgba(62, 243, 255, 0.9);
  background-position: 90% 50%;
}

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

.button:active {
  transform: translateY(0);
  box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.2);
}

.button:disabled,
.button[aria-disabled='true'] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.button--ghost {
  border-color: rgba(148, 163, 184, 0.4);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.2));
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.8);
}

.button--ghost:hover {
  border-color: rgba(62, 243, 255, 0.7);
  box-shadow: var(--shadow-soft);
}

.button--danger {
  border-color: rgba(251, 75, 90, 0.7);
  background-image: linear-gradient(135deg, #fb4b5a 0%, #7f1d1d 35%, #020617 100%);
}

/* Inputs & form controls */

.input,
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.96);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input::placeholder,
textarea::placeholder {
  color: rgba(148, 163, 184, 0.75);
}

.input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-primary);
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 1),
    0 0 0 2px var(--color-primary);
  outline: none;
}

.input[disabled],
select[disabled],
textarea[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Card component - for game tiles, articles, etc. */

.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  background:
    radial-gradient(circle at 0% 0%, rgba(62, 243, 255, 0.14), transparent 55%),
    linear-gradient(145deg, #05060a 0%, #050714 40%, #020308 100%);
  border: 1px solid rgba(15, 23, 42, 0.9);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background-position var(--transition-slow);
  background-size: 130% 130%;
  background-position: 0% 0%;
}

.card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid transparent;
  background:
    linear-gradient(135deg, rgba(62, 243, 255, 0.8), rgba(168, 85, 255, 0.8))
    border-box;
  mask:
    linear-gradient(#000 0 0) padding-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
  border-color: rgba(62, 243, 255, 0.45);
  background-position: 40% 40%;
}

.card:hover::before {
  opacity: 0.7;
}

.card-header {
  margin-bottom: var(--space-10);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-400);
}

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

.card-footer {
  margin-top: var(--space-12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Media wrapper to keep cover art immersive */

.card-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-12);
  background-color: #020617;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease-out, filter 260ms ease-out;
}

.card:hover .card-media img {
  transform: scale(1.04);
  filter: saturate(1.15);
}

/* Tag / pill - for genres, platforms, etc. */

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at 0 0, rgba(62, 243, 255, 0.2), transparent 55%);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-200);
}

.pill--primary {
  border-color: rgba(62, 243, 255, 0.65);
  background: linear-gradient(135deg, rgba(62, 243, 255, 0.3), rgba(15, 23, 42, 0.7));
}

.pill--success {
  border-color: rgba(61, 214, 140, 0.7);
  background: linear-gradient(135deg, rgba(61, 214, 140, 0.28), rgba(15, 23, 42, 0.7));
}

/* Rating badge (for game scores) */

.rating-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 30% 0, rgba(62, 243, 255, 0.35), #020617);
  border: 1px solid rgba(62, 243, 255, 0.7);
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.rating-badge--high {
  border-color: rgba(61, 214, 140, 0.8);
  background: radial-gradient(circle at 30% 0, rgba(61, 214, 140, 0.35), #020617);
}

.rating-badge--medium {
  border-color: rgba(250, 204, 21, 0.8);
  background: radial-gradient(circle at 30% 0, rgba(250, 204, 21, 0.35), #020617);
}

.rating-badge--low {
  border-color: rgba(251, 75, 90, 0.8);
  background: radial-gradient(circle at 30% 0, rgba(251, 75, 90, 0.35), #020617);
}

/* Search bar wrapper for knowledge base / catalog */

.search-bar {
  display: flex;
  align-items: stretch;
  gap: var(--space-6);
  padding: var(--space-4);
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.6));
  border: 1px solid rgba(30, 64, 175, 0.7);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9);
}

.search-bar input[type='search'] {
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

.search-bar input[type='search']:focus-visible {
  box-shadow: none;
}

.search-bar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  color: var(--gray-400);
}

/* Expert / profile chip (for expert reviewers) */

.expert-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.4));
  border: 1px solid rgba(129, 140, 248, 0.7);
  font-size: var(--font-size-xs);
  color: var(--gray-200);
}

.expert-chip-avatar {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(129, 140, 248, 0.9);
}

.expert-chip-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-chip-role {
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* End of base.css */