:root {
  --color-bg: #050805;
  --color-surface: #091109;
  --color-surface-strong: #0d1d0d;
  --color-text: #d6ffd6;
  --color-muted: #76a876;
  --color-accent: #5cff73;
  --color-accent-soft: rgba(92, 255, 115, 0.16);
  --color-accent-faint: rgba(92, 255, 115, 0.05);
  --color-accent-hover: rgba(92, 255, 115, 0.24);
  --color-warn: #f7d56b;
  --color-bad: #ff6f6f;
  --border-subtle: rgba(92, 255, 115, 0.28);
  --shadow-glow: 0 0 28px rgba(92, 255, 115, 0.18);
  --button-bg: rgba(92, 255, 115, 0.09);
  --button-bg-hover: rgba(92, 255, 115, 0.19);
  --button-bg-active: rgba(247, 213, 107, 0.14);
  --button-border: rgba(92, 255, 115, 0.34);
  --button-border-hover: var(--color-accent);
  --button-text: var(--color-text);
  --button-text-hover: var(--color-accent);
  --button-key-bg: rgba(92, 255, 115, 0.08);
  --button-shadow: none;
  --button-shadow-hover: var(--shadow-glow);
  --button-radius: 0;
  --radius-panel: 10px;
  --font-main: "Courier New", Consolas, monospace;
  --font-display: "Courier New", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--color-bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  letter-spacing: 0;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

.screen-noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 20;
}

.site-header,
.site-footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
}

.site-header {
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 16px;
}

.site-nav a {
  color: var(--color-muted);
  font-size: 0.9rem;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a:hover {
  color: var(--color-accent);
}

.skin-switcher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.skin-switcher select {
  max-width: 180px;
  border: 1px solid var(--border-subtle);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 7px 9px;
}

.home-skin-panel {
  margin: 26px 0 8px;
}

.home-skin-panel p {
  margin: 0 0 10px;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.home-skin-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.skin-choice {
  min-height: 46px;
  border: 1px solid var(--button-border);
  border-radius: var(--button-radius);
  background: var(--button-bg);
  box-shadow: var(--button-shadow);
  color: var(--button-text);
  cursor: pointer;
  padding: 9px;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.skin-choice:hover,
.skin-choice:focus-visible,
.skin-choice.is-active {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
  box-shadow: var(--button-shadow-hover);
  color: var(--button-text-hover);
  outline: none;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.home-about {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.home-about p {
  max-width: 680px;
  margin: 0;
  color: var(--color-text);
  line-height: 1.45;
}

.home-about p + p {
  margin-top: 8px;
}

.home-about .eyebrow {
  margin-bottom: 8px;
  color: var(--color-muted);
}

.app-shell,
.game-shell {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 56px;
}

.app-shell--center {
  display: grid;
  min-height: calc(100svh - 150px);
  place-items: center;
}

.terminal-hero,
.game-console,
.game-list__group {
  position: relative;
  width: 100%;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-panel);
  background: linear-gradient(180deg, var(--color-surface), var(--color-bg));
  box-shadow: var(--shadow-glow), inset 0 0 60px var(--color-accent-faint);
}

.terminal-hero {
  max-width: 780px;
  padding: clamp(28px, 7vw, 72px);
}

.terminal-hero h1,
.list-header h1,
.game-console h1 {
  margin: 0;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 10vw, 7rem);
  line-height: 0.9;
  text-transform: uppercase;
}

.game-console h1 {
  font-size: clamp(2rem, 7vw, 4.8rem);
}

.eyebrow,
.result-kicker {
  margin: 0 0 14px;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.hero-copy,
.game-prompt,
.list-header p {
  max-width: 680px;
  color: var(--color-text);
  font-size: clamp(1rem, 2.6vw, 1.35rem);
  line-height: 1.5;
}

.mode-root {
  margin-top: 28px;
}

.terminal-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0;
  color: var(--color-muted);
}

.status-dot,
.footer-pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--button-border-hover);
  border-radius: var(--button-radius);
  background: var(--button-bg);
  box-shadow: var(--button-shadow);
  color: var(--button-text-hover);
  cursor: pointer;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--button-bg-hover);
  outline: none;
  box-shadow: var(--button-shadow-hover);
}

.button--secondary {
  border-color: var(--border-subtle);
  color: var(--color-muted);
}

.button--small {
  min-height: 38px;
  padding: 8px 14px;
  font-size: 0.82rem;
}

.game-console {
  min-height: calc(100svh - 180px);
  padding: clamp(22px, 5vw, 54px);
}

.game-console__meta,
.game-list__heading,
.item-row,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.game-console__meta {
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.answer-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  min-height: 180px;
  padding: 18px;
  border: 1px solid var(--button-border);
  border-radius: var(--button-radius);
  background: var(--button-bg);
  box-shadow: var(--button-shadow);
  color: var(--button-text);
  cursor: pointer;
  line-height: 1.45;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.answer-card:hover,
.answer-card:focus-visible {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
  box-shadow: var(--button-shadow-hover);
  color: var(--button-text-hover);
  outline: none;
  transform: translateY(-2px);
}

.answer-card:disabled {
  cursor: default;
  opacity: 0.72;
}

.answer-card.is-selected {
  border-color: var(--color-warn);
  background: var(--button-bg-active);
}

.answer-card.is-answer {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
}

.answer-card__key {
  display: grid;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--button-border);
  background: var(--button-key-bg);
  color: var(--button-text-hover);
}

.result-panel {
  margin-top: 28px;
  padding: 22px;
  border: 1px solid var(--border-subtle);
  background: var(--color-accent-faint);
}

.result-panel h2 {
  margin: 0 0 12px;
  color: var(--color-accent);
}

.result-panel p {
  line-height: 1.5;
}

.limit-panel {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--border-subtle);
  background: var(--color-accent-faint);
}

.limit-panel h2 {
  margin: 0 0 10px;
  color: var(--color-accent);
  font-size: clamp(1.4rem, 5vw, 2.2rem);
  text-transform: uppercase;
}

.limit-panel p {
  margin: 0;
  line-height: 1.45;
}

.limit-panel p + p {
  margin-top: 10px;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.reaction-panel {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--border-subtle);
  background: var(--color-surface);
}

.reaction-panel__title {
  margin: 0 0 10px;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.reaction-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button.is-active {
  border-color: var(--color-warn);
  background: var(--button-bg-active);
  color: var(--color-text);
}

.result-reward {
  border-left: 3px solid var(--color-accent);
  color: var(--color-text);
  padding-left: 12px;
}

.challenge-comparison {
  border: 1px solid var(--border-subtle);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 12px;
}

.limit-meter {
  color: var(--color-warn);
}

.result-stat,
.copy-status {
  color: var(--color-muted);
}

.list-header {
  margin-bottom: 24px;
}

.list-header h1 {
  font-size: clamp(2.4rem, 8vw, 5.6rem);
}

.game-list {
  display: grid;
  gap: 18px;
}

.game-list__group {
  padding: 22px;
}

.game-list__heading h2 {
  margin: 0 0 6px;
  color: var(--color-accent);
}

.game-list__heading p {
  margin: 0;
  color: var(--color-muted);
}

.item-list {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.item-row {
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--border-subtle);
  color: var(--color-text);
  text-decoration: none;
}

.item-row:hover {
  border-color: var(--color-accent);
}

.item-row.is-completed .item-row__status {
  color: var(--color-accent);
}

.site-footer {
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.admin-shell {
  display: grid;
  gap: 24px;
}

.admin-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 18px;
}

.admin-header h1 {
  margin: 0;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 5.4rem);
  line-height: 0.92;
  text-transform: uppercase;
}

.admin-header p:not(.eyebrow) {
  margin: 12px 0 0;
  color: var(--color-muted);
}

.admin-range-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.admin-range-tabs a {
  min-height: 38px;
  border: 1px solid var(--border-subtle);
  background: var(--button-bg);
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  text-decoration: none;
  text-transform: uppercase;
}

.admin-range-tabs a:hover,
.admin-range-tabs a:focus-visible,
.admin-range-tabs a.is-active {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
  color: var(--button-text-hover);
  outline: none;
}

.admin-kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.admin-kpi {
  min-height: 92px;
  border: 1px solid var(--border-subtle);
  background: var(--color-accent-faint);
  padding: 14px;
}

.admin-kpi span {
  display: block;
  color: var(--color-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.admin-kpi strong {
  display: block;
  margin-top: 10px;
  color: var(--color-text);
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1;
}

.admin-section {
  display: grid;
  gap: 12px;
}

.admin-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.admin-section__header h2 {
  margin: 0;
  color: var(--color-accent);
  font-size: 1.2rem;
  text-transform: uppercase;
}

.admin-section__header span {
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
}

.admin-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  background: var(--color-surface);
}

.admin-table--items {
  min-width: 1180px;
}

.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--border-subtle);
  padding: 11px 12px;
  text-align: right;
  vertical-align: top;
  white-space: nowrap;
}

.admin-table th:first-child,
.admin-table td:first-child,
.admin-table--items td:nth-child(2) {
  text-align: left;
}

.admin-table thead th {
  background: var(--color-surface-strong);
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.admin-table tbody th {
  color: var(--color-text);
  font-weight: 700;
}

.admin-table tbody tr:hover {
  background: var(--color-accent-faint);
}

.admin-table small {
  display: block;
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 400;
}

@media (max-width: 760px) {
  .site-footer,
  .game-list__heading,
  .admin-header,
  .admin-section__header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header {
    gap: 12px;
    min-height: 58px;
    padding: 12px 0;
  }

  .brand {
    gap: 8px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 0.82rem;
  }

  .brand-text {
    font-size: 0.98rem;
  }

  .site-nav {
    gap: 12px;
  }

  .site-nav a {
    font-size: 0.78rem;
  }

  .skin-switcher {
    gap: 6px;
    font-size: 0.72rem;
  }

  .skin-switcher span {
    display: none;
  }

  .skin-switcher select {
    max-width: 150px;
    min-height: 36px;
  }

  .app-shell,
  .game-shell {
    width: min(100% - 24px, 1120px);
    padding: 16px 0 34px;
  }

  .game-console {
    min-height: auto;
    padding: 18px;
  }

  .game-console__meta {
    gap: 8px;
    margin-bottom: 18px;
    font-size: 0.72rem;
    white-space: nowrap;
  }

  .game-console h1 {
    font-size: clamp(1.85rem, 8vw, 2.7rem);
    line-height: 1;
  }

  .game-prompt {
    margin: 14px 0 0;
    font-size: 1rem;
  }

  .mode-root {
    margin-top: 18px;
  }

  .answer-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 18px;
  }

  .answer-card {
    min-height: 0;
    gap: 12px;
    padding: 14px 14px 13px;
    line-height: 1.38;
  }

  .answer-card__key {
    width: 28px;
    height: 28px;
  }

  .terminal-hero,
  .game-console,
  .game-list__group {
    border-radius: 8px;
  }

  .terminal-hero {
    padding: 22px;
  }

  .home-skin-grid {
    grid-template-columns: 1fr;
  }

  .skin-choice {
    min-height: 40px;
  }

  .home-about {
    margin-top: 14px;
    padding-top: 12px;
  }

  .admin-range-tabs {
    justify-content: flex-start;
    width: 100%;
  }

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

  .admin-kpi {
    min-height: 82px;
    padding: 12px;
  }
}