/* ========================================================================
   Variables
   ======================================================================== */
:root {
  /* Color Palette - Arcade Tank Battle Theme */
  --color-bg: #05070b;                /* deep cinematic graphite */
  --color-bg-elevated: #0b0f18;       /* cards, panels */
  --color-bg-soft: #141927;           /* overlays, alternating rows */

  --color-text: #f5f7fa;              /* primary text */
  --color-text-muted: #9fa6b8;        /* secondary text */
  --color-border-subtle: #262c3b;     /* dividers, outlines */

  --color-primary: #24d1ff;           /* electric blue CTA */
  --color-primary-soft: rgba(36, 209, 255, 0.12);
  --color-primary-strong: #11a3cc;

  --color-accent-orange: #ff7a1a;     /* fiery orange */
  --color-accent-yellow: #ffe81a;     /* neon yellow */
  --color-accent-green: #19c27b;      /* military green with glow */
  --color-accent-silver: #a7b1c8;     /* metallic silver */

  --color-success: #19c27b;
  --color-warning: #ffba24;
  --color-danger: #ff4b4b;

  /* Neutral grays for UI */
  --gray-50: #0a0c11;
  --gray-100: #11141e;
  --gray-200: #1a1f2c;
  --gray-300: #262c3b;
  --gray-400: #3a4255;
  --gray-500: #4f5870;
  --gray-600: #6d7794;
  --gray-700: #8d95ad;
  --gray-800: #b7bdcf;
  --gray-900: #e3e6f0;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Orbitron", "Rajdhani", "Audiowide", system-ui, sans-serif; /* Futuristic headings */

  --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: 0.25rem;  /* 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-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows - cinematic/glow */
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.55);
  --shadow-strong: 0 18px 60px rgba(0, 0, 0, 0.85);
  --shadow-glow-primary: 0 0 18px rgba(36, 209, 255, 0.5);
  --shadow-glow-orange: 0 0 18px rgba(255, 122, 26, 0.55);

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

  --transition-all-fast: all var(--transition-fast);
  --transition-all: all var(--transition-normal);

  /* Layout */
  --container-max-width: 1120px;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0.001ms;
    --transition-normal: 0.001ms;
    --transition-slow: 0.001ms;
    --transition-all-fast: none;
    --transition-all: none;
  }

  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

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

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

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

textarea {
  resize: vertical;
}

a {
  color: inherit;
}

/* ========================================================================
   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, #141927 0, #05070b 55%, #020308 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

/* Headings - futuristic, competitive tone */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
}

h1 {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-4xl));
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-xl);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-2);
}

h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-1);
}

h6 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
}

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

strong, b {
  font-weight: 600;
}

/* Links - neon hover, no default underline */
a {
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-normal), text-shadow var(--transition-normal);
}

a:hover {
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(36, 209, 255, 0.6);
}

a:active {
  color: var(--color-accent-orange);
}

/* Code */
code, kbd, samp, pre {
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

/* Lists */
ul, ol {
  margin: 0 0 var(--space-4) var(--space-5);
  padding: 0;
}

li {
  margin-bottom: var(--space-1);
}

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

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

[tabindex="-1"]:focus {
  outline: none !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 {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-6);
  }
}

/* Spacing helpers (minimal set, extend as needed) */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mt-8 { margin-top: var(--space-8) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

.pt-4 { padding-top: var(--space-4) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.pt-8 { padding-top: var(--space-8) !important; }
.pb-8 { padding-bottom: var(--space-8) !important; }

/* Flex helpers */
.flex {
  display: flex;
}

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

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

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

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

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

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

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

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

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

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

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

/* Grid helpers */
.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);
  }
}

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

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

/* Buttons - primary CTA (e.g., "Csata indítása", "Letöltés") */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-all);
}

.btn-primary {
  background: radial-gradient(circle at 10% 0, var(--color-accent-yellow) 0, var(--color-primary) 60%, var(--color-primary-strong) 100%);
  color: #05070b!important;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-glow-primary);
}

.btn-primary:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: var(--shadow-glow-primary), 0 10px 30px rgba(0, 0, 0, 0.8);
  filter: brightness(1.03);
}

.btn-primary:active {
  transform: translateY(0) scale(0.99);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.9);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-subtle);
  box-shadow: none;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--gray-400);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent-orange), var(--color-danger));
  color: #05070b !important;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-glow-orange);
}

.btn-accent:hover {
  transform: translateY(-1px) scale(1.03);
  box-shadow: var(--shadow-glow-orange), 0 14px 38px rgba(0, 0, 0, 0.9);
}

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

.btn:focus-visible {
  outline: 2px solid var(--color-accent-yellow);
  outline-offset: 3px;
}

/* Inputs & form controls */
.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(6, 9, 18, 0.95);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
}

.input::placeholder,
textarea::placeholder {
  color: var(--gray-600);
}

.input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(36, 209, 255, 0.6);
}

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

label {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-700);
}

/* Card - used for leaderboard tiles, upgrade panels, store items */
.card {
  position: relative;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(20, 25, 39, 0.96), rgba(9, 12, 22, 0.98));
  border: 1px solid rgba(167, 177, 200, 0.12);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(36, 209, 255, 0.18) 0, transparent 45%),
              radial-gradient(circle at bottom right, rgba(255, 122, 26, 0.16) 0, transparent 55%);
  mix-blend-mode: screen;
  opacity: 0.6;
  pointer-events: none;
}

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

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

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

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--gray-700);
}

/* Simple tag / pill - can be used for difficulty, PvP, tournament labels */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent-silver);
  background: radial-gradient(circle at top, rgba(36, 209, 255, 0.2), transparent 55%);
}

.tag--danger {
  color: #fff5f5;
  border-color: rgba(255, 75, 75, 0.6);
  background: radial-gradient(circle at top, rgba(255, 75, 75, 0.3), transparent 60%);
}

.tag--success {
  color: #e6fff6;
  border-color: rgba(25, 194, 123, 0.7);
  background: radial-gradient(circle at top, rgba(25, 194, 123, 0.3), transparent 60%);
}

/* Leaderboard-style layout helper */
.leaderboard-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.leaderboard-item {
  display: grid;
  grid-template-columns: 40px 1.5fr 1fr auto;
  align-items: center;
  column-gap: var(--space-4);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(6, 9, 18, 0.8);
  border: 1px solid rgba(38, 44, 59, 0.9);
}

.leaderboard-item + .leaderboard-item {
  margin-top: 0.5rem;
}

@media (max-width: 640px) {
  .leaderboard-item {
    grid-template-columns: 32px 1.8fr 1fr;
    grid-auto-rows: auto;
  }
}

/* Promo hero media frame - for explosive screenshots */
.frame-cinematic {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: radial-gradient(circle at center, #222b39 0, #05070b 55%);
  border: 1px solid rgba(167, 177, 200, 0.24);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
}

.frame-cinematic::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(120deg, rgba(36, 209, 255, 0.12), transparent 40%, rgba(255, 122, 26, 0.18));
  mix-blend-mode: screen;
  pointer-events: none;
}

/* Subtle hover parallax for cards / frames */
.hover-tilt {
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.hover-tilt:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-strong);
}

/* Call-to-action section helper */
.section-cta {
  position: relative;
  padding: var(--space-12) 0;
  background: radial-gradient(circle at top, rgba(255, 232, 26, 0.08), transparent 55%),
              radial-gradient(circle at bottom, rgba(36, 209, 255, 0.12), transparent 60%),
              linear-gradient(160deg, #05070b, #05070b 40%, #0b0f18 100%);
  overflow: hidden;
}

.section-cta::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 210deg, transparent 0 70deg, rgba(255, 232, 26, 0.2) 90deg, transparent 160deg);
  opacity: 0.3;
  mix-blend-mode: soft-light;
  pointer-events: none;
}

/* Badges for platforms / download */
.badge-platform {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(167, 177, 200, 0.25);
  background: rgba(10, 14, 25, 0.9);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-800);
}

/* ========================================================================
   End
   ======================================================================== */