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

:root {
  /* Colors */
  --color-background: #050814;
  --color-surface: #101322;
  --color-surface-elevated: #161a2c;
  --color-text: #f7f7fb;
  --color-text-muted: #b3b7cc;
  --color-primary: #facc4c;
  --color-primary-soft: rgba(250, 204, 76, 0.12);
  --color-success: #22c55e;
  --color-warning: #f97316;
  --color-danger: #ef4444;
  --color-border-subtle: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.16);
  --color-overlay: rgba(5, 8, 20, 0.85);

  /* Neutral grays */
  --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, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --font-display: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --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-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (px) */
  --space-0: 0;
  --space-4: 0.25rem;   /* 4px */
  --space-8: 0.5rem;    /* 8px */
  --space-12: 0.75rem;  /* 12px */
  --space-16: 1rem;     /* 16px */
  --space-20: 1.25rem;  /* 20px */
  --space-24: 1.5rem;   /* 24px */
  --space-32: 2rem;     /* 32px */
  --space-40: 2.5rem;   /* 40px */
  --space-48: 3rem;     /* 48px */
  --space-64: 4rem;     /* 64px */
  --space-80: 5rem;     /* 80px */
  --space-96: 6rem;     /* 96px */

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.35);
  --shadow-strong: 0 22px 65px rgba(0, 0, 0, 0.65);
  --shadow-focus: 0 0 0 1px rgba(250, 204, 76, 0.7),
    0 0 0 4px rgba(250, 204, 76, 0.25);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease;
  --transition-slow: 280ms ease;
}

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

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

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

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

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

ul,
ol {
  list-style: none !important;
}

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

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

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

main {
  display: block;
}

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

h1 {
  font-size: clamp(2.25rem, 3vw, 3.25rem);
  margin-bottom: var(--space-24);
}

h2 {
  font-size: clamp(1.875rem, 2.4vw, 2.375rem);
  margin-bottom: var(--space-20);
}

h3 {
  font-size: clamp(1.5rem, 2vw, 1.875rem);
  margin-bottom: var(--space-16);
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-12);
}

p {
  margin-bottom: var(--space-16);
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

::selection {
  background: rgba(250, 204, 76, 0.25);
  color: var(--color-text);
}

/* Links (global) */

a {
  color: var(--color-primary);
  transition: color var(--transition-fast),
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: #fff !important;
}

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

/* Layout containers */

.container {
  width: 100%;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.section {
  padding-top: var(--space-64);
  padding-bottom: var(--space-64);
}

.section--alternate {
  background: radial-gradient(circle at top, #191f3a 0%, #050814 60%);
}

/* Flex helpers */

.flex {
  display: 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;
}

.gap-16 {
  gap: var(--space-16);
}

.gap-24 {
  gap: var(--space-24);
}

.gap-32 {
  gap: var(--space-32);
}

/* Grid helpers */

.grid {
  display: grid;
  gap: var(--space-24);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

/* Spacing utilities (common) */

.mt-24 { margin-top: var(--space-24); }
.mt-40 { margin-top: var(--space-40); }
.mb-24 { margin-bottom: var(--space-24); }
.mb-40 { margin-bottom: var(--space-40); }

/* 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;
}

/* Simple mobile burger menu utilities */

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--color-border-subtle);
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 999px;
  position: relative;
  transition: transform var(--transition-normal),
    opacity var(--transition-normal),
    background-color var(--transition-normal);
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-label span::before {
  top: -6px;
}

.nav-toggle-label span::after {
  top: 6px;
}

.nav-toggle:checked + .nav-toggle-label span {
  background-color: transparent;
}

.nav-toggle:checked + .nav-toggle-label span::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle:checked + .nav-toggle-label span::after {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

@media (max-width: 768px) {
  .nav-toggle-label {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: var(--color-overlay);
    backdrop-filter: blur(18px);
    padding: var(--space-16);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-16);
    border-bottom: 1px solid var(--color-border-subtle);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal),
      transform var(--transition-normal);
  }

  .nav-toggle:checked ~ .site-header__nav .nav-menu {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }
}

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

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-normal),
    border-color var(--transition-normal),
    color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, #facc4c, #f97316);
  color: #050814;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  color: #050814 !important;
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
}

.btn-outline {
  background: rgba(15, 23, 42, 0.6);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-outline:hover {
  background: var(--color-primary-soft);
  color: #fff !important;
  border-color: var(--color-primary);
}

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

/* Inputs & form controls */

.input,
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.9);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

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

.input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
  background-color: rgba(15, 23, 42, 0.98);
}

label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

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

/* Card */

.card {
  background: linear-gradient(145deg, #101322 0%, #050814 70%);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-24);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top left,
      rgba(250, 204, 76, 0.12),
      transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.card__content {
  position: relative;
  z-index: 1;
}

.card--interactive {
  transition: transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
}

.card--interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
  border-color: var(--color-primary-soft);
}

/* Tag / pill for game types, event formats etc. */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(250, 204, 76, 0.45);
  background: rgba(250, 204, 76, 0.06);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Header / Navigation basics */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 8, 20, 0.94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  position: relative;
  padding-block: 0.1rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #facc4c, #f97316);
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: #fff !important;
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

/* Hero section helpers */

.hero {
  padding-top: var(--space-80);
  padding-bottom: var(--space-80);
  background: radial-gradient(circle at top, #1e293b 0%, #050814 55%);
}

.hero__kicker {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-12);
}

.hero__title {
  max-width: 18ch;
}

.hero__subtitle {
  max-width: 42ch;
}

/* Lists for features / bullets */

.list-inline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8) var(--space-16);
}

.list-check li::before {
  content: "•";
  color: var(--color-primary);
  margin-right: 0.5rem;
}

/* Footer basics */

.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  background-color: #050814;
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
  font-size: var(--font-size-sm);
}

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

.site-footer a:hover {
  color: #fff !important;
}

/* ==========================================================================
   Accessibility & Motion
   ========================================================================== */

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

@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;
  }
}