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

:root {
  /* Color palette - dark, immersive, sci-fi fantasy */
  /* Backgrounds */
  --color-bg: #050712;
  --color-bg-elevated: #0c0f1c;
  --color-bg-alt: #101426;

  /* Text */
  --color-text: #f5f7ff;
  --color-text-muted: #9aa0c6;
  --color-text-soft: #6b728f;

  /* Primary & accents (cosmic blues/purples) */
  --color-primary: #5b8dff;
  --color-primary-soft: rgba(91, 141, 255, 0.16);
  --color-primary-strong: #8f9bff;

  --color-accent-1: #b05cff;
  --color-accent-1-soft: rgba(176, 92, 255, 0.16);
  --color-accent-2: #1de5ff;
  --color-accent-2-soft: rgba(29, 229, 255, 0.16);

  /* Semantic */
  --color-success: #3fd8a3;
  --color-success-soft: rgba(63, 216, 163, 0.15);

  --color-warning: #ffc857;
  --color-warning-soft: rgba(255, 200, 87, 0.15);

  --color-danger: #ff4b6e;
  --color-danger-soft: rgba(255, 75, 110, 0.15);

  /* Neutral grays for borders & UI */
  --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;

  --border-subtle: rgba(148, 163, 184, 0.24);
  --border-strong: rgba(148, 163, 184, 0.45);

  /* Gradients (for hero, buttons, cards) */
  --gradient-primary: linear-gradient(135deg, #5b8dff 0%, #b05cff 50%, #1de5ff 100%);
  --gradient-surface: radial-gradient(circle at 0% 0%, rgba(91, 141, 255, 0.45), transparent 55%),
                      radial-gradient(circle at 100% 100%, rgba(176, 92, 255, 0.4), transparent 60%),
                      #050712;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Eurostile", "Orbitron", "Rajdhani", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-monospace: "JetBrains Mono", "Fira Code", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Font sizes (mobile-first scale) */
  --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 heights */
  --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: 0.125rem;  /* 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-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 */

  /* Radii */
  --radius-xs: 0.125rem;  /* 2px */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-pill: 999px;

  /* Shadows - soft, atmospheric */
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
  --shadow-strong: 0 24px 70px rgba(0, 0, 0, 0.7);
  --shadow-glow-primary: 0 0 25px rgba(91, 141, 255, 0.7);
  --shadow-glow-accent: 0 0 25px rgba(176, 92, 255, 0.7);

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

@media (min-width: 768px) {
  :root {
    --font-size-xl: 1.375rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.125rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
  }
}

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

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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;
  padding: 0;
  margin: 0;
}

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

img {
  height: auto;
}

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

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

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

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

/* Reduced motion respect */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background: radial-gradient(circle at top, #161b3a 0%, #050712 55%, #02030a 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 60vh;
}

/* Typography */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-5);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

h6 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-6);
  color: var(--color-text-muted);
}

strong {
  color: var(--color-text);
}

code, pre {
  font-family: var(--font-monospace);
}

/* Links */

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

a:hover {
  color: var(--color-primary-strong);
  text-shadow: 0 0 18px rgba(91, 141, 255, 0.6);
}

a:active {
  opacity: 0.85;
}

/* Lists */

ul,
ol {
  padding-left: 1.25rem;
  margin-bottom: var(--space-6);
}

/* Horizontal rule */

hr {
  border: 0;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-12) 0;
}

/* ========================================================================== 
   Accessibility
   ========================================================================== */

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

:focus {
  outline: none;
}

/* 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;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

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

/* Layout containers */

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-12);
    padding-right: var(--space-12);
  }
}

.section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

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

.section__heading {
  margin-bottom: var(--space-8);
}

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

.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;
}

.gap-xs {
  gap: var(--space-3);
}

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

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

.gap-lg {
  gap: var(--space-10);
}

/* Grid helpers */

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  gap: var(--space-8);
}

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

.grid-3 {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Alignment and text utilities */

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

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

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

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

.text-accent {
  color: var(--color-accent-2);
}

/* Spacing utilities (subset for common use) */

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

.mt-xs { margin-top: var(--space-4) !important; }
.mt-sm { margin-top: var(--space-6) !important; }
.mt-md { margin-top: var(--space-10) !important; }
.mt-lg { margin-top: var(--space-16) !important; }

.mb-xs { margin-bottom: var(--space-4) !important; }
.mb-sm { margin-bottom: var(--space-6) !important; }
.mb-md { margin-bottom: var(--space-10) !important; }
.mb-lg { margin-bottom: var(--space-16) !important; }

.pt-section { padding-top: var(--space-24) !important; }
.pb-section { padding-bottom: var(--space-24) !important; }

/* Width & max-width */

.w-full {
  width: 100%;
}

.max-w-wide {
  max-width: 80rem;
}

/* Surfaces */

.surface {
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.surface--translucent {
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.92),
    rgba(30, 64, 175, 0.65)
  );
  border: 1px solid rgba(148, 163, 184, 0.35);
  backdrop-filter: blur(18px);
}

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

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 0.7rem 1.5rem;
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.25), transparent 55%);
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.btn--primary {
  color: #0b1020;
  background-image: var(--gradient-primary);
  box-shadow: var(--shadow-glow-primary);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
}

.btn--secondary {
  color: var(--color-text);
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.96), rgba(30, 64, 175, 0.76));
  border-color: rgba(148, 163, 184, 0.65);
}

.btn--ghost {
  color: var(--color-text-muted);
  background: transparent;
  border-color: rgba(148, 163, 184, 0.4);
}

.btn--primary:hover::before,
.btn--secondary:hover::before,
.btn--ghost:hover::before {
  opacity: 1;
}

.btn:active {
  transform: translateY(0);
  opacity: 0.9;
}

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

.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 0.85rem 1.9rem;
  font-size: var(--font-size-base);
}

/* Inputs & form controls */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.field label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

.field__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: rgba(10, 13, 28, 0.9);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.55);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base),
    transform var(--transition-fast);
}

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

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  border-color: var(--color-accent-2);
  box-shadow: 0 0 0 1px rgba(29, 229, 255, 0.3), 0 18px 40px rgba(15, 23, 42, 0.9);
  background: rgba(10, 13, 28, 0.98);
}

.input--error,
.textarea--error,
.select--error {
  border-color: var(--color-danger);
}

.field__error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

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

.select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
                    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 14px) calc(50% - 3px), calc(100% - 9px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

/* Cards - used heavily for lore, factions, tips, etc. */

.card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at top left, rgba(91, 141, 255, 0.22), transparent 55%),
              radial-gradient(circle at bottom right, rgba(176, 92, 255, 0.22), transparent 55%),
              rgba(9, 9, 20, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: var(--shadow-soft);
  padding: var(--space-8);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.18), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
  border-color: rgba(129, 140, 248, 0.9);
}

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

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

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

.card__eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-accent-2);
  margin-bottom: var(--space-2);
}

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

.card__footer {
  margin-top: var(--space-6);
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

/* Tag / pill (for game type, factions, categories) */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.15rem 0.6rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: rgba(15, 23, 42, 0.85);
  color: var(--color-text-soft);
}

.tag--accent {
  border-color: rgba(91, 141, 255, 0.85);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.tag--success {
  border-color: rgba(63, 216, 163, 0.85);
  background: var(--color-success-soft);
  color: var(--color-success);
}

/* Hero-specific helpers (for immersive landing sections) */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(circle at top left, rgba(91, 141, 255, 0.5), transparent 55%),
              radial-gradient(circle at bottom right, rgba(176, 92, 255, 0.4), transparent 60%),
              #02030a;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 20% 0, rgba(29, 229, 255, 0.25), transparent 55%),
              radial-gradient(circle at 100% 100%, rgba(15, 23, 42, 0.9), transparent 65%);
  mix-blend-mode: screen;
  opacity: 0.8;
}

.hero__content {
  max-width: 40rem;
}

.hero__kicker {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-accent-2);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

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

/* Simple nav bar base (for multi-page navigation) */

.navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(90deg, rgba(5, 7, 18, 0.9), rgba(5, 7, 18, 0.75));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.navbar__links {
  display: none;
}

@media (min-width: 900px) {
  .navbar__links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    font-size: var(--font-size-sm);
  }
}

.navbar__link {
  position: relative;
  padding-block: 0.15rem;
  color: var(--color-text-soft);
}

.navbar__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

.navbar__link:hover {
  color: var(--color-text);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__link--active {
  color: var(--color-text);
}

/* Footer base */

.footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.95), #02030a);
  padding-top: var(--space-12);
  padding-bottom: var(--space-10);
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}

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

@media (min-width: 768px) {
  .footer__top {
    grid-template-columns: 2fr 1.3fr 1.3fr;
  }
}

.footer__bottom {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding-top: var(--space-4);
}

.footer a {
  color: var(--color-text-soft);
}

.footer a:hover {
  color: var(--color-accent-2);
}

/* ========================================================================== 
   Animations (lightweight, for hover / hero ambience)
   ========================================================================== */

@keyframes float-soft {
  0%   { transform: translate3d(0, 0, 0); }
  50%  { transform: translate3d(0, -6px, 0); }
  100% { transform: translate3d(0, 0, 0); }
}

@keyframes pulse-glow {
  0%   { box-shadow: 0 0 0 0 rgba(91, 141, 255, 0.7); }
  70%  { box-shadow: 0 0 0 10px rgba(91, 141, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(91, 141, 255, 0); }
}

.anim-float-soft {
  animation: float-soft 6s ease-in-out infinite;
}

.anim-pulse-glow {
  animation: pulse-glow 2.4s ease-out infinite;
}

/* Limit animations for users with reduced motion */

@media (prefers-reduced-motion: reduce) {
  .anim-float-soft,
  .anim-pulse-glow {
    animation: none;
  }
}