* {
  box-sizing: border-box;
}

html {
  background-color: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", "Arial Narrow", Arial, sans-serif;
}

.millionaire-shell {
  width: min(1160px, calc(100vw - 32px));
  margin: 0 auto;
  padding:
    max(20px, env(safe-area-inset-top))
    0
    max(28px, env(safe-area-inset-bottom));
}

.millionaire-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.back-link {
  color: var(--ink);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

.header-copy h1 {
  margin: 10px 0 0;
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 0.95;
}

.header-copy p {
  margin: 8px 0 0;
  color: var(--ink-muted);
  max-width: 46ch;
}

.millionaire-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(250px, 0.7fr);
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.game-panel,
.ladder-panel,
.start-panel,
.end-panel {
  border: 1px solid var(--border);
  background: rgba(13, 36, 80, 0.82);
}

.start-panel,
.end-panel {
  padding: 26px;
}

.start-panel h2,
.end-panel h2 {
  margin: 0;
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.start-panel p,
.end-panel p {
  color: var(--ink-muted);
  line-height: 1.55;
}

.primary-btn,
.secondary-btn,
.option-btn {
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
}

.primary-btn,
.secondary-btn {
  padding: 12px 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.primary-btn:hover,
.secondary-btn:hover,
.option-btn:hover {
  border-color: var(--ink-light);
}

.primary-btn {
  background: var(--ink);
  color: var(--bg);
}

.game-panel {
  padding: 18px;
}

.game-topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.question-meta {
  display: grid;
  gap: 6px;
}

.question-meta span,
.prize-now,
.final-prize {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  color: var(--ink-light);
}

.question-box {
  padding: 18px;
  border: 1px solid var(--border);
  background: rgba(6, 22, 50, 0.75);
  min-height: 164px;
  display: grid;
  align-content: center;
}

.question-box h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.9rem);
  line-height: 1.35;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.option-btn {
  padding: 16px 18px;
  min-height: 88px;
  text-align: left;
  display: grid;
  gap: 6px;
  align-content: center;
  background: rgba(15, 42, 90, 0.92);
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.option-btn:hover:not(:disabled) {
  transform: translateY(-2px);
}

.option-btn .letter {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-light);
}

.option-btn .text {
  font-size: 1rem;
  line-height: 1.35;
}

.option-btn.locked {
  border-color: var(--ink);
  background: rgba(255, 216, 77, 0.12);
}

.option-btn.correct {
  border-color: var(--success);
  background: rgba(46, 213, 115, 0.18);
}

.option-btn.wrong {
  border-color: var(--danger);
  background: rgba(255, 107, 107, 0.18);
}

.option-btn:disabled {
  cursor: default;
}

.status-line {
  margin-top: 14px;
  min-height: 1.4em;
  color: var(--ink-muted);
}

.game-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.ladder-panel {
  padding: 14px;
}

.ladder-panel h3 {
  margin: 0 0 10px;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
}

.prize-ladder {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
}

.prize-ladder li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 10px;
  border: 1px solid transparent;
  background: rgba(6, 22, 50, 0.72);
  font-size: 0.92rem;
}

.prize-ladder li.active {
  border-color: var(--ink);
  background: rgba(255, 216, 77, 0.14);
}

.prize-ladder li.safe {
  color: var(--ink-light);
}

.hidden {
  display: none !important;
}

@media (max-width: 860px) {
  .millionaire-layout {
    grid-template-columns: 1fr;
  }

  .options-grid {
    grid-template-columns: 1fr;
  }

  .millionaire-shell {
    width: min(100vw - 24px, 900px);
  }

  .ladder-panel {
    order: -1;
  }

  .prize-ladder {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .millionaire-shell {
    width: min(100vw - 18px, 900px);
    padding-top: max(14px, env(safe-area-inset-top));
    padding-bottom: max(18px, env(safe-area-inset-bottom));
  }

  .millionaire-header {
    align-items: start;
    padding-bottom: 12px;
  }

  .header-copy h1 {
    font-size: clamp(1.75rem, 9vw, 2.55rem);
    line-height: 0.98;
  }

  .header-copy p {
    font-size: 0.94rem;
    line-height: 1.45;
  }

  .start-panel,
  .end-panel,
  .game-panel,
  .ladder-panel {
    padding: 14px;
  }

  .game-topbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
  }

  .question-box {
    min-height: 148px;
    padding: 14px;
  }

  .question-box h2 {
    font-size: clamp(1.08rem, 5vw, 1.38rem);
    line-height: 1.42;
  }

  .options-grid {
    gap: 10px;
    margin-top: 12px;
  }

  .option-btn {
    min-height: 76px;
    padding: 14px;
    gap: 4px;
  }

  .option-btn .text {
    font-size: 0.94rem;
    line-height: 1.32;
  }

  .primary-btn,
  .secondary-btn {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
  }

  .status-line {
    margin-top: 12px;
    font-size: 0.92rem;
    line-height: 1.4;
  }

  .prize-ladder {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .prize-ladder li {
    padding: 8px 9px;
    font-size: 0.84rem;
  }
}