/* ==========================================================================
   ⚡ QUIZZITCH — Vivid Trivia Neo-Brutalist Design System
   High-Energy · Uppercase · Tactile Press States · Sharp Corners (Radius 0)
   ========================================================================== */

/* ── Reset & Box Sizing ─────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── CSS Custom Properties & Tokens ─────────────────────────────────────── */
:root {
  /* Vivid Color Tokens */
  --primary: #6b38d4;
  --primary-container: #8455ef;
  --primary-fixed: #e9ddff;
  --primary-fixed-dim: #d0bcff;
  --on-primary: #ffffff;
  --on-primary-fixed: #23005c;
  --on-primary-fixed-variant: #5516be;

  --secondary: #b9003f;
  --secondary-container: #e51152;
  --secondary-fixed: #ffd9dc;
  --secondary-fixed-dim: #ffb2ba;
  --on-secondary: #ffffff;
  --on-secondary-fixed: #400010;
  --on-secondary-fixed-variant: #910030;

  --tertiary: #006763;
  --tertiary-container: #00837d;
  --tertiary-fixed: #00fcf2;
  --tertiary-fixed-dim: #00ddd5;
  --on-tertiary: #ffffff;
  --on-tertiary-fixed: #00201e;
  --on-tertiary-fixed-variant: #00504c;

  --lemon-yellow: #FFEEAD;
  --off-white: #FDFDFD;
  --pure-black: #000000;

  /* Default Theme (Light Mode :root) */
  --background: #f9f9f9;
  --surface: #f9f9f9;
  --surface-dim: #dadada;
  --surface-bright: #f9f9f9;
  --surface-variant: #e2e2e2;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f3f3;
  --surface-container: #eeeeee;
  --surface-container-high: #e8e8e8;
  --surface-container-highest: #e2e2e2;

  --on-surface: #1a1c1c;
  --on-surface-variant: #494454;
  --outline: #7b7486;
  --outline-variant: #cbc3d7;

  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;

  --ans-purple: #a078ff;
  --ans-cyan: #03b5d3;
  --ans-yellow: #eec200;
  --ans-coral: #ff8a80;

  /* Typography Fonts */
  --font-heading: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Menlo", monospace;

  /* Type Scale */
  --text-display-lg: 72px;
  --lh-display-lg: 1.1;
  --fw-display-lg: 900;
  --ls-display-lg: -0.02em;

  --text-display-md: clamp(28px, 5vw, 48px);
  --lh-display-md: 1.1;
  --fw-display-md: 900;
  --ls-display-md: -0.01em;

  --text-headline-lg: clamp(22px, 3.5vw, 32px);
  --lh-headline-lg: 1.2;
  --fw-headline-lg: 800;

  --text-headline-lg-mobile: 24px;
  --lh-headline-lg-mobile: 1.2;
  --fw-headline-lg-mobile: 800;

  --text-body-lg: 20px;
  --lh-body-lg: 30px;
  --fw-body-lg: 500;

  --text-body-md: 16px;
  --lh-body-md: 24px;
  --fw-body-md: 400;

  --text-label-bold: 14px;
  --lh-label-bold: 20px;
  --fw-label-bold: 700;

  /* Icon Sizes */
  --icon-sm: 18px;
  --icon-md: 24px;
  --icon-lg: 32px;
  --icon-xl: 40px;

  /* 8px Spacing Grid */
  --space-2xs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-4xl: 40px;
  --space-5xl: 48px;
  --space-6xl: 64px;

  --unit: 8px;
  --gutter: 24px;
  --margin-mobile: 16px;
  --margin-desktop: 40px;
  --container-max: 1280px;

  /* Borders & Shadows & Radius */
  --border-width: 4px;
  --border-width-heavy: 8px;
  --border-color: #000000;
  --shadow-color: #000000;

  --shadow-sm: 4px 4px 0px var(--shadow-color);
  --shadow-md: 8px 8px 0px var(--shadow-color);
  --shadow-lg: 12px 12px 0px var(--shadow-color);
  --shadow-xl: 16px 16px 0px var(--shadow-color);

  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --radius-xl: 0px;
  --radius-full: 0px;

  /* Focus Ring */
  --focus-ring: 0 0 0 4px var(--lemon-yellow), 0 0 0 8px #000000;

  /* Default Theme (Light Mode :root) */
  --color-bg: #f9f9f9;
  --color-bg-alt: #ffffff;
  --color-surface: #ffffff;
  --color-surface-2: #eeeeee;
  --color-border: #000000;
  --color-separator: #000000;

  --color-text: #1a1c1c;
  --color-text-secondary: #494454;
  --color-text-tertiary: #7b7486;

  --color-accent: var(--primary);
  --color-accent-hover: var(--primary-container);
  --color-accent-pressed: var(--on-primary-fixed-variant);

  --color-success: var(--tertiary);
  --color-warning: var(--lemon-yellow);
  --color-error: var(--error);
  --color-info: var(--tertiary);

  /* Legacy Scale Mappings */
  --text-caption: 12px;
  --text-footnote: 14px;
  --text-body: 16px;
  --text-callout: 18px;
  --text-subhead: 20px;
  --text-title3: 24px;
  --text-title2: 32px;
  --text-title1: 48px;
  --text-large: 72px;
}

/* ── Dark Theme (.theme-dark) ─────────────────────────────────────────── */
.theme-dark {
  --background: #000000;
  --surface: #1e1e1e;
  --surface-dim: #121212;
  --surface-bright: #282828;
  --surface-variant: #282828;
  --surface-container-lowest: #121212;
  --surface-container-low: #1e1e1e;
  --surface-container: #1e1e1e;
  --surface-container-high: #282828;
  --surface-container-highest: #333333;

  --on-surface: #ffffff;
  --on-surface-variant: #cbc3d7;
  --outline: #7b7486;
  --outline-variant: #cbc3d7;

  --border-color: #cbc3d7;
  --shadow-color: #cbc3d7;

  --color-bg: #000000;
  --color-bg-alt: #121212;
  --color-surface: #1e1e1e;
  --color-surface-2: #282828;
  --color-border: #cbc3d7;
  --color-separator: #333333;

  --color-text: #ffffff;
  --color-text-secondary: #cbc3d7;
  --color-text-tertiary: #a1a1a6;

  --color-accent: var(--primary);
  --color-accent-hover: var(--primary-container);
  --color-accent-pressed: var(--on-primary-fixed-variant);

  --color-success: #00fcf2;
  --color-warning: var(--lemon-yellow);
  --color-error: var(--error);
  --color-info: var(--tertiary-fixed);

  --focus-ring: 0 0 0 4px var(--lemon-yellow), 0 0 0 8px #cbc3d7;
}

/* ── Light Theme Alias (.theme-light) ─────────────────────────────────── */
.theme-light {
  /* No-op alias for backwards compatibility */
}

/* ── Base HTML & Body ───────────────────────────────────────────────────── */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  line-height: var(--lh-body-md);
  font-weight: var(--fw-body-md);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

::selection {
  background-color: var(--secondary);
  color: var(--on-secondary);
}

/* ── Material Symbols Helper ────────────────────────────────────────────── */
.material-symbols-outlined {
  font-family: "Material Symbols Outlined", sans-serif;
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
  vertical-align: middle;
}

/* ── Skip Link ──────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--margin-mobile);
  padding: var(--space-sm) var(--space-lg);
  background: var(--lemon-yellow);
  color: var(--pure-black);
  z-index: 10000;
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: top 0.1s;
}

.skip-link:focus {
  top: var(--space-sm);
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ── Header & TopAppBar ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: var(--border-width-heavy) solid var(--border-color);
  box-shadow: 0 8px 0 0 var(--shadow-color);
}

.site-header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin-desktop);
  height: 96px;
}

@media (max-width: 768px) {
  .site-header nav {
    padding: 0 var(--margin-mobile);
    height: 80px;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--primary);
  line-height: 1;
}

.logo .logo-icon {
  font-size: 36px;
  color: var(--primary);
  font-variation-settings: 'FILL' 1;
}

.logo-text,
.logo {
  font-family: var(--font-heading);
  font-size: clamp(18px, 4.5vw, 48px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

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

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border: 2px solid transparent;
  transition: all 75ms ease;
}

.nav-links a:hover {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border-color: var(--pure-black);
}

.nav-links a:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Nav Create Quiz Chip Button */
.btn-create-chip {
  background-color: var(--lemon-yellow) !important;
  color: var(--pure-black) !important;
  font-family: var(--font-heading) !important;
  font-size: var(--text-label-bold) !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  padding: 8px 18px !important;
  border: var(--border-width) solid var(--pure-black) !important;
  box-shadow: var(--shadow-sm) !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 75ms ease !important;
}

.btn-create-chip:hover {
  transform: translate(-2px, -2px) !important;
  box-shadow: var(--shadow-md) !important;
  background-color: var(--lemon-yellow) !important;
  color: var(--pure-black) !important;
}

.btn-create-chip:active {
  transform: translate(2px, 2px) !important;
  box-shadow: none !important;
}

/* Display Name Badge */
.display-name {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  background-color: var(--secondary-fixed);
  color: var(--pure-black);
  padding: 6px 10px;
  border: 2px solid var(--pure-black);
  display: inline-block;
}

/* Theme Toggle Button */
.theme-btn {
  background-color: var(--surface-container-low);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  color: var(--primary);
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 75ms ease;
  line-height: 1;
}

.theme-btn:hover {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.theme-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.theme-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Nav Icon Button (Mobile TopAppBar) */
.nav-icon-btn {
  background-color: var(--surface-container-low);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
  cursor: pointer;
  padding: 6px;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 75ms ease;
  line-height: 1;
  text-decoration: none;
}

.nav-icon-btn:hover {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.nav-icon-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.nav-icon-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.nav-icon-btn .material-symbols-outlined {
  font-size: 24px;
}

.mobile-only {
  display: none !important;
}

@media (max-width: 767px) {
  .mobile-only {
    display: inline-flex !important;
  }
  .nav-desktop-only,
  .btn-create-chip,
  .display-name,
  .nav-links > a:not(.nav-icon-btn) {
    display: none !important;
  }
  .nav-links {
    gap: var(--space-sm);
  }
  .theme-btn,
  .nav-icon-btn,
  .hero-pin-btn,
  .ops-nav-icon {
    min-width: 44px;
    min-height: 44px;
  }
}

.theme-icon-light { display: none; }
.theme-icon-dark { display: block; }
.theme-dark .theme-icon-light { display: block; }
.theme-dark .theme-icon-dark { display: none; }

/* ── Main Layout Container ──────────────────────────────────────────────── */
main {
  flex: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5xl) var(--margin-desktop);
  width: 100%;
}

@media (max-width: 768px) {
  main {
    padding: var(--space-4xl) var(--margin-mobile);
  }
}

/* ── Home page ───────────────────────────────────────────────────────────── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 500px;
  margin-bottom: var(--space-6xl);
  padding: var(--space-4xl) 0;
}

.hero-text-reveal {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.hero h1,
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(40px, 8vw, var(--text-display-lg));
  line-height: var(--lh-display-lg);
  font-weight: var(--fw-display-lg);
  letter-spacing: var(--ls-display-lg);
  text-transform: uppercase;
  color: var(--color-text);
  margin: 0;
}

.reveal-inner {
  display: inline-block;
  will-change: transform;
}

.hero p,
.hero-subcopy {
  font-family: var(--font-body);
  font-size: var(--text-body-lg);
  line-height: var(--lh-body-lg);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  max-width: 680px;
  margin: 0 auto var(--space-5xl);
}

.hero-cta-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .hero-cta-row {
    flex-direction: row;
    gap: var(--space-xl);
  }
}

.btn-hero-host,
.btn.btn-hero-host {
  width: 100%;
  padding: var(--space-lg) var(--space-3xl);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .btn-hero-host,
  .btn.btn-hero-host {
    width: auto;
  }

  .hero-pin-input {
    min-width: 340px;
  }
}

.btn-hero-host:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-lg);
}

.btn-hero-host:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.btn-hero-host .material-symbols-outlined {
  font-size: 28px;
  transition: transform 150ms ease;
}

.btn-hero-host:hover .material-symbols-outlined {
  transform: rotate(12deg);
}

.hero-or {
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.hero-pin-form {
  position: relative;
  width: 100%;
  flex: 1;
}

.hero-pin-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.hero-pin-input {
  width: 100%;
  background-color: var(--surface-container-high);
  color: var(--color-text);
  border: var(--border-width-heavy) solid var(--border-color);
  box-shadow: var(--shadow-md);
  padding: var(--space-lg) var(--space-2xl);
  padding-right: 56px;
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 0;
  transition: background-color 150ms ease, box-shadow 150ms ease;
}

.hero-pin-input:focus {
  outline: none;
  background-color: var(--lemon-yellow);
}

.hero-pin-input::placeholder {
  color: var(--outline);
  font-weight: 900;
  text-transform: uppercase;
}

.hero-pin-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--secondary);
  color: var(--on-secondary);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: none;
  padding: 6px 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 0;
  opacity: 0;
  transition: opacity 150ms ease, transform 75ms ease, background-color 75ms ease;
}

.hero-pin-wrap:focus-within .hero-pin-btn,
.hero-pin-btn:hover,
.hero-pin-btn:focus-visible {
  opacity: 1;
}

.hero-pin-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.hero-pin-btn:active {
  transform: translateY(-50%) translate(2px, 2px);
}

.hero-pin-btn .material-symbols-outlined {
  font-size: 24px;
  font-weight: 700;
}

/* Bento Grid Section */
.bento-section {
  margin-bottom: var(--space-6xl);
}

.bento-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  line-height: var(--lh-display-md);
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-5xl);
}

.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--unit);
  grid-auto-rows: minmax(180px, auto);
}

@media (min-width: 560px) and (max-width: 1023px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: minmax(220px, auto);
  }

  .bento-span-2 {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 300px;
  }

  .bento-span-2 {
    grid-column: span 2;
  }
}

.bento-tile {
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  padding: clamp(16px, 4vw, var(--space-3xl));
  min-height: 180px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: 0;
  transition: transform 150ms ease, box-shadow 150ms ease;
  color: var(--pure-black);
}

.bento-tile:hover {
  transform: translate(-8px, -8px);
  box-shadow: var(--shadow-xl);
}

.bento-tile-content {
  position: relative;
  z-index: 2;
}

.bento-primary {
  background-color: var(--primary-fixed);
}

.bento-secondary {
  background-color: var(--secondary-fixed);
}

.bento-tertiary {
  background-color: var(--tertiary-fixed);
}

.bento-promo {
  background-color: var(--lemon-yellow);
  justify-content: center;
}

.bento-icon-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
  border-radius: 0;
}

.bento-primary .bento-icon-chip {
  background-color: var(--primary);
  color: var(--on-primary);
}

.bento-secondary .bento-icon-chip {
  background-color: var(--secondary);
  color: var(--on-secondary);
}

.bento-tertiary .bento-icon-chip {
  background-color: var(--tertiary);
  color: var(--on-tertiary);
}

.bento-icon-chip .material-symbols-outlined {
  font-size: 32px;
}

.bento-bg-icon {
  position: absolute;
  top: 0;
  right: 0;
  padding: var(--space-lg);
  opacity: 0.1;
  pointer-events: none;
  transition: opacity 150ms ease;
  color: var(--pure-black);
}

.bento-tile:hover .bento-bg-icon {
  opacity: 0.25;
}

.bento-bg-icon .material-symbols-outlined {
  font-size: 140px;
  line-height: 1;
}

.bento-tile-title {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  line-height: var(--lh-headline-lg-mobile);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--pure-black);
  margin-bottom: var(--space-sm);
}

.bento-tile-body {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  line-height: var(--lh-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--pure-black);
  margin: 0;
}

/* Bento Promo Content */
.bento-promo-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.bento-promo-badge {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  background-color: var(--pure-black);
  color: var(--lemon-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
}

.bento-promo-glyph {
  font-family: var(--font-heading);
  font-size: var(--text-display-md);
  font-weight: 900;
  line-height: 1;
}

.bento-promo-text {
  flex: 1;
}

/* Quiz card host button */
.quiz-host-btn {
  padding: 8px 18px;
  font-size: var(--text-label-bold);
  font-weight: 800;
  border-width: var(--border-width);
  box-shadow: var(--shadow-sm);
  gap: var(--space-xs);
  flex-shrink: 0;
}

.quiz-host-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.quiz-host-btn .material-symbols-outlined {
  font-size: 18px;
}

@media (max-width: 600px) {
  .quiz-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  .quiz-host-btn {
    width: 100%;
  }
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  min-height: 44px;
  background-color: var(--color-surface);
  color: var(--color-text);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  border-radius: 0;
  cursor: pointer;
  text-decoration: none;
  transition: transform 75ms ease, box-shadow 75ms ease, background-color 75ms ease, color 75ms ease;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

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

.btn-primary {
  background-color: var(--primary);
  color: var(--on-primary);
  border-width: var(--border-width-heavy);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--primary-container);
  color: var(--on-primary);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.btn-secondary {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border-width: var(--border-width);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--tertiary-fixed);
  color: var(--pure-black);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.site-footer {
  width: 100%;
  margin-top: auto;
  border-top: var(--border-width-heavy) solid var(--pure-black);
  background-color: var(--surface-container-lowest);
  color: var(--tertiary);
  padding: var(--space-4xl) var(--margin-desktop);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .site-footer {
    flex-direction: row;
  }
}

.site-footer .footer-brand {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-footer .footer-copy,
.site-footer p {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin: 0;
}

.site-footer a {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  text-decoration: none;
  padding: 2px 6px;
  transition: color 100ms, background-color 100ms;
}

.site-footer a:hover {
  color: var(--secondary);
  background-color: var(--lemon-yellow);
}

/* ── Forms (Create Quiz, Auth, Join) ────────────────────────────────────── */
.create-form,
.join-form {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}

.subtitle {
  font-family: var(--font-body);
  font-size: var(--text-body-lg);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3xl);
}

.field {
  margin-bottom: var(--space-2xl);
}

.field label,
.auth-form label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.field input,
.field select,
.auth-form input,
.auth-form select,
.join-form input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  background-color: var(--surface-container-high);
  color: var(--color-text);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
  transition: background-color 100ms ease, box-shadow 100ms ease, color 100ms ease;
}

.field input:focus,
.field select:focus,
.auth-form input:focus,
.auth-form select:focus,
.join-form input:focus {
  outline: none;
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border-color: var(--pure-black);
  box-shadow: var(--shadow-md);
}

.field input::placeholder,
.auth-form input::placeholder,
.join-form input::placeholder {
  text-transform: uppercase;
  color: var(--outline);
  font-weight: 700;
}

.field select {
  background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23000000' stroke-width='4' stroke-linecap='square' stroke-linejoin='miter' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 48px;
  cursor: pointer;
}

.field-help,
.auth-form .helptext,
.auth-form .form-help {
  margin-top: var(--space-xs);
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.field-row {
  display: flex;
  gap: var(--space-lg);
}

.field-row .field {
  flex: 1;
}

@media (max-width: 640px) {
  .field-row {
    flex-direction: column;
    gap: 0;
  }
}

/* ── Auth Forms (Login / Signup / Entrance) ─────────────────────────────── */
.auth-card {
  width: 100%;
  max-width: 420px;
  margin: var(--space-6xl) auto;
  padding: clamp(16px, 4vw, 48px);
  background-color: var(--surface-container-lowest);
  border: var(--border-width-heavy) solid var(--border-color);
  box-shadow: var(--shadow-md);
  text-align: center;
}

@media (max-width: 640px) {
  .auth-card {
    margin: var(--space-3xl) auto;
  }
}

.auth-title,
.auth-card h1,
.auth-form h1 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  line-height: var(--lh-display-md);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: var(--ls-display-md);
  color: var(--primary);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.auth-title-icon,
.auth-card h1 .material-symbols-outlined,
.auth-form h1 .material-symbols-outlined {
  font-size: var(--icon-xl);
  color: var(--primary);
  font-variation-settings: 'FILL' 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.auth-subtitle,
.auth-card > p,
.auth-form > p,
.auth-card .auth-form > p {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3xl);
  line-height: var(--lh-body-md);
}

.auth-subtitle a,
.auth-card p a,
.auth-form p a {
  color: var(--secondary);
  font-weight: 800;
  text-transform: uppercase;
  text-decoration: none;
  padding: 2px 4px;
  transition: color 100ms, background-color 100ms;
}

.auth-subtitle a:hover,
.auth-card p a:hover,
.auth-form p a:hover {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
}

.auth-card form,
.auth-form form {
  text-align: left;
}

.auth-card form p,
.auth-form form p {
  margin-bottom: var(--space-2xl);
  text-align: left;
}

.auth-card label,
.auth-form label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="hidden"]),
.auth-form input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="hidden"]),
.auth-card select,
.auth-form select {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  background-color: var(--surface-container-high);
  color: var(--color-text);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
  transition: background-color 100ms ease, box-shadow 100ms ease, color 100ms ease;
}

.auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="hidden"]):focus,
.auth-form input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="hidden"]):focus,
.auth-card select:focus,
.auth-form select:focus {
  outline: none;
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border-color: var(--pure-black);
  box-shadow: var(--shadow-md);
}

.auth-card input::placeholder,
.auth-form input::placeholder {
  text-transform: uppercase;
  color: var(--outline);
  font-weight: 700;
}

.auth-card input[type="checkbox"],
.auth-form input[type="checkbox"] {
  width: 24px;
  height: 24px;
  min-height: 24px;
  padding: 0;
  appearance: auto;
  -webkit-appearance: auto;
  border: var(--border-width) solid var(--pure-black);
  border-radius: 0;
  accent-color: var(--primary);
  display: inline-block;
  vertical-align: middle;
  margin-right: var(--space-sm);
  margin-bottom: 0;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.auth-card label:has(input[type="checkbox"]),
.auth-form label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  margin-bottom: 0;
}

.auth-card ul.errorlist,
.auth-form ul.errorlist {
  list-style: none;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  background-color: var(--error-container);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  text-align: left;
}

.auth-card ul.errorlist li,
.auth-form ul.errorlist li {
  color: var(--error);
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
}

.auth-card hr,
.auth-form hr {
  border: none;
  border-top: var(--border-width) solid var(--pure-black);
  margin: var(--space-2xl) 0;
}

.auth-card .btn,
.auth-form .btn {
  margin-top: var(--space-xl);
}

/* ── Messages & Feedback ────────────────────────────────────────────────── */
.messages {
  margin-bottom: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.message {
  padding: var(--space-md) var(--space-lg);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 800;
  text-transform: uppercase;
  border-radius: 0;
}

.message.success {
  background-color: var(--tertiary-fixed);
  color: var(--pure-black);
}

.message.error {
  background-color: var(--error-container);
  color: var(--error);
}

/* ── Quiz Result Card ───────────────────────────────────────────────────── */
.quiz-result-card {
  background-color: var(--primary-fixed);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  padding: var(--space-2xl);
  margin: var(--space-2xl) 0;
  border-radius: 0;
}

.quiz-result-card h3 {
  margin-bottom: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--pure-black);
}

.quiz-result-card p {
  margin-bottom: var(--space-xs);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  color: var(--pure-black);
}

.quiz-result-card .meta {
  color: var(--on-surface-variant);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
}

.quiz-result-card.error {
  background-color: var(--error-container);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
}

.quiz-result-card.error h3 {
  color: var(--error);
}

/* ── Recent Quizzes on Homepage ─────────────────────────────────────────── */
.recent-quizzes {
  margin-top: var(--space-6xl);
}

.recent-quizzes h2 {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.quiz-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background: transparent;
}

.quiz-card {
  padding: var(--space-lg) var(--space-xl);
  background-color: var(--surface-container-low);
  border: var(--border-width-heavy) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 75ms ease, box-shadow 75ms ease, background-color 75ms ease;
  border-radius: 0;
}

.quiz-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
  background-color: var(--lemon-yellow);
}

.quiz-card:hover .quiz-title {
  color: var(--pure-black);
}

.quiz-card .quiz-title {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-text);
  font-size: var(--text-body-lg);
  text-transform: uppercase;
  display: block;
}

.quiz-card .quiz-meta {
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  display: block;
  margin-top: var(--space-xs);
}

/* -- Game flow -- */

/* ── Join Game Page ─────────────────────────────────────────────────────── */
.join-card {
  width: 100%;
  max-width: 440px;
  margin: var(--space-6xl) auto;
  padding: clamp(16px, 4vw, 48px);
  background-color: var(--surface-container-lowest);
  border: var(--border-width-heavy) solid var(--border-color);
  box-shadow: var(--shadow-md);
  text-align: center;
}

@media (max-width: 640px) {
  .join-card {
    margin: var(--space-3xl) auto;
  }
}

.join-title,
.join-card h1 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: var(--ls-display-md);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.join-title-icon {
  font-size: 40px;
  color: var(--primary);
}

.join-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3xl);
}

.join-form .field {
  margin-bottom: var(--space-2xl);
  text-align: left;
}

.game-code-input {
  width: 100%;
  text-transform: uppercase;
  text-align: center;
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg);
  font-weight: 900;
  letter-spacing: 0.35em;
  padding: var(--space-lg);
  background-color: var(--surface-container-high);
  color: var(--color-text);
  border: var(--border-width-heavy) solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: background-color 75ms ease, box-shadow 75ms ease;
}

.game-code-input:focus {
  background-color: var(--lemon-yellow);
  outline: none;
  border-color: var(--pure-black);
}

.game-code-input::placeholder {
  color: var(--outline-variant);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.8;
}

.btn-join {
  width: 100%;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

/* Display-name field: keep the brutalist chrome but don't uppercase names. */
.name-input {
  text-transform: none;
  text-align: left;
  letter-spacing: normal;
  font-family: var(--font-body);
  font-size: var(--text-headline-md);
}

.field-hint {
  margin-top: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.qr-hint-box {
  margin-top: var(--space-2xl);
  padding: var(--space-md);
  background-color: var(--surface-container-low);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
}

.qr-detected-hint {
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* ── Lobby Page ─────────────────────────────────────────────────────────── */
.lobby-panel {
  max-width: 640px;
  margin: var(--space-4xl) auto;
}

.lobby-header {
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  background-color: var(--primary-fixed);
  padding: var(--space-3xl);
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.lobby-title,
.lobby-header h1,
.lobby-panel h1 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: var(--ls-display-md);
  color: var(--pure-black);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.lobby-title-icon {
  font-size: 40px;
  color: var(--primary);
}

.game-code-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm) var(--space-2xl);
}

.code-label {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pure-black);
}

.code-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--pure-black);
}

.qr-section {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.qr-box {
  display: inline-block;
  background: #ffffff;
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm);
}

.qr-image {
  display: block;
}

.qr-hint {
  font-family: var(--font-body);
  font-size: var(--text-label-bold);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

.lobby-players {
  background-color: var(--surface-container-low);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  padding: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.lobby-players-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.lobby-players h2 {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text);
}

.player-count {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  padding: 2px 10px;
  border: var(--border-width) solid var(--pure-black);
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 900;
}

.player-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.player-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--surface-container-lowest);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-text);
  transition: transform 75ms ease, box-shadow 75ms ease;
}

.player-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.player-item.empty {
  color: var(--on-surface-variant);
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
}

.host-badge {
  background-color: var(--secondary);
  color: var(--on-secondary);
  padding: 2px 8px;
  border: var(--border-width) solid var(--pure-black);
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.guest-badge {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  padding: 2px 8px;
  border: var(--border-width) solid var(--pure-black);
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-start-game {
  width: 100%;
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.waiting-box {
  padding: var(--space-lg);
  text-align: center;
  background: var(--surface-container-low);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
}

.waiting-msg {
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* ── Create Quiz Page ───────────────────────────────────────────────────── */
.create-container {
  width: 100%;
  max-width: 680px;
  margin: var(--space-4xl) auto;
}

.create-header {
  margin-bottom: var(--space-2xl);
}

.create-title,
.create-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: var(--ls-display-md);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.create-title-icon {
  font-size: 40px;
  color: var(--primary);
}

.create-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.create-card {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  background-color: var(--surface-container-lowest);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  padding: clamp(16px, 4vw, 48px);
  margin-bottom: var(--space-2xl);
}

.btn-generate {
  margin-top: var(--space-xl);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

/* ── Gameplay Arena (Host & Player Views) ─────────────────────────────────── */
.game-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-lg) 0;
}

.host-view,
.player-view {
  width: 100%;
  display: flex;
  flex-direction: column;
}

.player-view {
  min-height: calc(100vh - 200px);
  justify-content: center;
}

.game-header {
  margin-bottom: var(--space-2xl);
}

.player-game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.player-status-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.player-streak-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xs) var(--space-md);
}

.player-streak-chip .streak-icon {
  font-size: 20px;
  color: var(--pure-black);
  font-variation-settings: 'FILL' 1;
}

.player-streak-chip .streak-text {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
}

.player-score-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  line-height: 1.1;
}

.player-score-block .score-label {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.player-score-block .score-value {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  color: var(--color-text);
}

.game-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: var(--ls-display-md);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.game-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.round-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--surface-container-high);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xs) var(--space-md);
}

.round-label {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.round-val {
  font-family: var(--font-heading);
  font-size: var(--text-body-md);
  font-weight: 900;
  color: var(--color-text);
}

.game-code-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xs) var(--space-md);
}

.code-chip-label {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
}

.code-display {
  font-family: var(--font-heading);
  font-size: var(--text-body-lg);
  font-weight: 900;
  letter-spacing: 0.15em;
}

/* Question Card */
.question-card {
  background-color: var(--surface-container-lowest);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: 6px 6px 0 var(--pure-black);
  padding: var(--space-3xl);
  margin-bottom: var(--space-2xl);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
}

.question-header {
  margin-bottom: var(--space-lg);
}

.question-chip {
  display: inline-block;
  background-color: var(--surface-container-lowest);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xs) var(--space-md);
}

.question-chip-text {
  font-family: var(--font-heading);
  font-size: var(--text-label-bold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.question-prompt {
  font-family: var(--font-heading);
  font-size: clamp(20px, 4.5vw, 32px);
  font-weight: 900;
  line-height: var(--lh-headline-lg);
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-2xl);
  max-width: 680px;
  word-break: break-word;
}

/* Timer SVG Ring */
.timer-container {
  position: relative;
  width: clamp(72px, 18vw, 128px);
  height: clamp(72px, 18vw, 128px);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-sm);
}

.timer-svg {
  width: 100%;
  height: 100%;
}

.timer-track {
  stroke: #e2e2e2; /* literal — visible on both dark and light page backgrounds */
}

.timer-ring {
  stroke-dasharray: 283;
  stroke-dashoffset: 0;
  transform-origin: center;
  transform: rotate(-90deg);
  transition: stroke-dashoffset 1s linear, stroke 0.3s ease;
}

.timer-disc {
  position: absolute;
  inset: clamp(8px, 2vw, 16px);
  background-color: var(--surface-container-lowest);
  border-radius: 50%;
  border: var(--border-width) solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.timer-number {
  font-family: var(--font-heading);
  font-size: clamp(16px, 4vw, 28px);
  font-weight: 900;
  color: var(--color-text);
}

.pulse-urgent {
  animation: urgentPulse 0.5s infinite;
}

@keyframes urgentPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .pulse-urgent {
    animation: none;
  }
}

/* Host Controls */
.host-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.btn-host-control {
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
}

.btn-next {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
}

.btn-next:hover {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
}

/* Host Player Scores List */
.player-results {
  background-color: var(--surface-container-low);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  padding: var(--space-2xl);
}

.player-results-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.player-results-header h2 {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text);
}

.player-scores-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.player-score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--surface-container-lowest);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-text);
}

.player-score-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.player-rank {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
  padding: 2px 8px;
  border: 2px solid var(--pure-black);
  font-size: var(--text-label-bold);
  font-weight: 900;
}

.player-score-pts {
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--primary);
}

/* Answer Tiles */
.choices-grid {
  display: flex;
  flex-direction: column;
  gap: var(--unit);
}

@media (min-width: 768px) {
  .choices-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

.answer-btn {
  width: 100%;
  min-height: 80px;
  padding: var(--space-lg) var(--space-xl);
  border: var(--border-width-heavy) solid var(--pure-black);
  box-shadow: var(--shadow-md);
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--pure-black);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 75ms ease, box-shadow 75ms ease, opacity 150ms ease;
  border-radius: 0;
}

.answer-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 12px 12px 0 var(--pure-black);
}

.answer-btn:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.answer-btn.answered {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

.answer-btn.selected {
  opacity: 1;
  outline: 4px solid var(--pure-black);
  box-shadow: var(--shadow-sm);
  transform: translate(2px, 2px);
}

.tile-icon-box {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pure-black);
}

.tile-icon-box.tile-shape-rotated {
  transform: rotate(45deg);
}

.tile-icon {
  font-size: 28px;
}

.tile-text {
  z-index: 1;
  text-align: center;
  width: 100%;
  padding-left: 28px;
  padding-right: 28px;
  letter-spacing: 0.02em;
}

.tile-0 {
  background-color: var(--primary-fixed);
}

.tile-1 {
  background-color: var(--tertiary-fixed);
}

.tile-2 {
  background-color: var(--lemon-yellow);
}

.tile-3 {
  background-color: var(--secondary-fixed-dim);
}

/* Result Area */
.result-area {
  margin-top: var(--space-xl);
  width: 100%;
}

.result-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: var(--border-width) solid var(--pure-black);
  box-shadow: var(--shadow-sm);
}

.result-correct .result-banner {
  background-color: var(--lemon-yellow);
  color: var(--pure-black);
}

.result-wrong .result-banner {
  background-color: var(--error-container);
  color: var(--pure-black);
}

.result-icon {
  font-size: 32px;
}

.result-correct .result-icon {
  color: var(--tertiary);
}

.result-wrong .result-icon {
  color: var(--error);
}

.result-text-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.result-title {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  text-transform: uppercase;
}

.result-points {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  color: var(--primary);
}

.result-wrong .result-points {
  color: var(--error);
}

/* Game Over */
.game-over-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  text-align: center;
  padding: var(--space-xl);
}

.trophy-icon {
  font-size: 64px;
  color: var(--primary);
}

.game-over-title {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text);
  letter-spacing: var(--ls-display-md);
}

.winner-msg {
  font-family: var(--font-body);
  font-size: var(--text-body-lg);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text);
  margin-top: var(--space-sm);
}

.winner-name {
  font-family: var(--font-heading);
  font-size: var(--text-headline-lg-mobile);
  font-weight: 900;
  color: var(--secondary);
}

/* ── Utilities ──────────────────────────────────────────────────────────── */
.w-full {
  width: 100% !important;
}

/* ── Screen Reader Utility ──────────────────────────────────────────────── */
.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;
}