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

:root {
  /* Color Palette - GTA III Mobile Anniversary (gritty, urban, cinematic) */
  --color-bg: #050608;               /* Near-black, cinematic backdrop */
  --color-bg-elevated: #101218;      /* Dark charcoal for cards/sections */
  --color-bg-muted: #1a1d25;         /* Urban gray for subtle panels */

  --color-text: #f2f2f2;             /* Primary body text */
  --color-text-muted: #a0a4b0;       /* Secondary, subdued text */
  --color-text-inverted: #050608;    /* For use on bright accents */

  --color-primary: #d72638;          /* Blood red accent */
  --color-primary-soft: #8f1a25;     /* Deeper, softer red for hovers */

  --color-success: #3fd28b;          /* Neon-tinted success green */
  --color-warning: #f5a623;          /* Warm amber warning */
  --color-danger: #ff3155;           /* Intense danger/red */

  --color-gray-50: #f5f5f7;
  --color-gray-100: #e1e3e8;
  --color-gray-200: #c2c5d0;
  --color-gray-300: #9a9fb0;
  --color-gray-400: #7b8090;
  --color-gray-500: #5b6070;
  --color-gray-600: #414552;
  --color-gray-700: #2c2f39;
  --color-gray-800: #191b21;
  --color-gray-900: #0b0c10;

  --color-border-subtle: rgba(255, 255, 255, 0.06);
  --color-border-strong: rgba(255, 255, 255, 0.18);

  --color-accent-neon-blue: #38b6ff; /* Subtle neon accent */
  --color-accent-neon-purple: #b537f2;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Impact", "Anton", "Oswald", system-ui, sans-serif;
  --font-mono: "SF Mono", 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;

  /* 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-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 999px;

  /* Shadows - cinematic, moody */
  --shadow-soft:
    0 10px 25px rgba(0, 0, 0, 0.55);
  --shadow-strong:
    0 22px 45px rgba(0, 0, 0, 0.85);
  --shadow-glow-red:
    0 0 25px rgba(215, 38, 56, 0.65);

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

/* Reduced Motion Adjustments */

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 1ms linear;
    --transition-normal: 1ms linear;
    --transition-slow: 1ms linear;
  }
}

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

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

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd,
ul,
ol {
  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;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border-radius: 0;
}

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

input,
textarea,
select {
  border: none;
}

ul,
ol {
  list-style: none;
}

:focus {
  outline: none;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-bg);
  color: var(--color-text);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

/* Headings - cinematic, bold hierarchy */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #ffffff;
}

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-1);
}

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

p:last-child {
  margin-bottom: 0;
}

strong,
b {
  font-weight: 700;
}

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

/* Links - subtle but bold on hover */

a {
  position: relative;
  transition: color var(--transition-normal);
}

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

/* Cinematic underline on focus-visible */

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-accent-neon-blue)
  );
  transition: width var(--transition-normal);
}

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

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

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

/* High-contrast focus for dark UI */

button:focus-visible,
[role="button"]:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.a11y-focus-ring:focus-visible {
  box-shadow: 0 0 0 2px var(--color-bg),
    0 0 0 4px var(--color-accent-neon-blue);
}

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

/* Layout Containers */

.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 1200px) {
  .container {
    max-width: 1240px;
  }
}

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

/* Flex Utilities */

.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;
}

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

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

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

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

/* Grid Utilities */

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

/* Spacing Utilities */

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.pt-8 { padding-top: var(--space-8); }
.pb-8 { padding-bottom: var(--space-8); }
.pt-16 { padding-top: var(--space-16); }
.pb-16 { padding-bottom: var(--space-16); }

/* Positioning */

.relative { position: relative; }
.absolute { position: absolute; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }

/* Text Alignment & Transform */

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

/* 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;
}

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

/* Buttons - bold, tactile, GTA-inspired */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    135deg,
    rgba(215, 38, 56, 0.16),
    rgba(255, 255, 255, 0.02)
  );
  color: #ffffff!important;
  box-shadow: var(--shadow-soft);
  transition:
    background-color var(--transition-normal),
    transform var(--transition-fast),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    color var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, #d72638, #ff3155);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-strong), var(--shadow-glow-red);
}

.btn-secondary {
  background: linear-gradient(135deg, #4a4e57, #1f2228);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.28);
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff3155, #ff596e);
}

.btn-secondary:hover:not(:disabled) {
  background: linear-gradient(135deg, #5a5f6a, #2a2e37);
}

.btn-ghost:hover:not(:disabled) {
  background-color: rgba(255, 255, 255, 0.06);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

/* Inputs - for age gates, email signups, etc. */

.input,
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(10, 12, 18, 0.95);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  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-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), 0 0 0 4px rgba(215, 38, 56, 0.45);
  background-color: #11131a;
}

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

/* Cards - for feature highlights, mission blocks, character spotlights */

.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background: radial-gradient(
      circle at top left,
      rgba(215, 38, 56, 0.16),
      transparent 55%
    ),
    radial-gradient(circle at bottom right, rgba(56, 182, 255, 0.16), transparent 55%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.9));
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.06),
    transparent 30%,
    transparent 70%,
    rgba(215, 38, 56, 0.18)
  );
  mix-blend-mode: soft-light;
  opacity: 0.55;
}

.card-content {
  position: relative;
  z-index: 1;
}

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

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

.card-subtitle {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Tag / Label chip (e.g., MOBILE, 10TH ANNIVERSARY, NEW) */

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-text);
}

.chip--danger {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Hero Overlay Utility - for cityscapes and key art */

.hero-overlay {
  position: relative;
  isolation: isolate;
}

.hero-overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(215, 38, 56, 0.45), transparent 55%),
    radial-gradient(circle at 80% 100%, rgba(56, 182, 255, 0.4), transparent 55%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.4));
  mix-blend-mode: screen;
  opacity: 0.6;
  z-index: -1;
}

.hero-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 38%, rgba(0, 0, 0, 0.98));
  z-index: -1;
}

/* Badge-like platform pill (e.g., Available on iOS / Android) */

.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  background-color: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.24);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/*
==========================================================================
  Motion & Transitions (Global)
==========================================================================
*/

.fade-in {
  opacity: 0;
  transform: translateY(6px);
  animation: fade-in-up 420ms var(--transition-normal) forwards;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@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;
  }
}