:root {
  --bg: #06131a;
  --bg-soft: #0d1d26;
  --panel: rgba(10, 26, 34, 0.86);
  --panel-strong: rgba(8, 20, 28, 0.94);
  --line: rgba(131, 212, 255, 0.18);
  --line-strong: rgba(131, 212, 255, 0.34);
  --text: #ecf6f7;
  --muted: #9bb6bc;
  --accent: #86f7d3;
  --accent-warm: #ffd675;
  --danger: #ff8d8d;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(43, 115, 144, 0.34), transparent 35%),
    linear-gradient(135deg, #041018 0%, #091920 48%, #03070a 100%);
}

button,
input {
  font: inherit;
}

.background-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(134, 247, 211, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(134, 247, 211, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
  pointer-events: none;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.hero-panel,
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 32px;
  border-radius: 28px;
  margin-bottom: 24px;
  overflow: hidden;
  position: relative;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -10% -45% 45%;
  height: 240px;
  background: radial-gradient(circle, rgba(134, 247, 211, 0.18), transparent 70%);
  pointer-events: none;
}

.eyebrow-row,
.meta-strip,
.button-row,
.clue-bank-head {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.eyebrow,
.meta-label,
.field-label,
.puzzle-stage {
  font-family: "Menlo", "Consolas", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-size: 0.78rem;
}

h1,
h2 {
  margin: 0;
  line-height: 1;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  max-width: 10ch;
  margin-top: 18px;
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
}

.hero-copy,
.puzzle-description,
.feedback,
.terminal-output,
.panel p,
.clue-list,
.progress-list {
  line-height: 1.6;
}

.hero-copy {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.04rem;
  margin: 18px 0 24px;
}

.status-pill,
.meta-card,
.secondary-button,
.ghost-button,
.clue-item,
.progress-item {
  border: 1px solid var(--line-strong);
}

.status-pill,
.meta-card,
.clue-item,
.progress-item,
.evidence-box,
.hint-box,
.terminal-output {
  border-radius: 18px;
}

.status-pill {
  padding: 8px 12px;
  font-family: "Menlo", "Consolas", monospace;
  color: var(--accent);
  background: rgba(134, 247, 211, 0.08);
}

.meta-strip {
  justify-content: flex-start;
}

.meta-card {
  min-width: 140px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
}

.meta-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.05rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.panel {
  border-radius: 24px;
  padding: 24px;
}

.sidebar {
  position: sticky;
  top: 20px;
  align-self: start;
}

.panel-head {
  margin-bottom: 16px;
}

.panel-head .eyebrow {
  margin: 0 0 10px;
}

.progress-list,
.clue-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.progress-item,
.clue-item {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.025);
}

.progress-item strong,
.clue-item strong {
  display: block;
  margin-bottom: 4px;
}

.progress-item[data-state="active"] {
  border-color: rgba(255, 214, 117, 0.6);
  background: rgba(255, 214, 117, 0.08);
}

.progress-item[data-state="solved"] {
  border-color: rgba(134, 247, 211, 0.52);
  background: rgba(134, 247, 211, 0.08);
}

.divider {
  height: 1px;
  margin: 18px 0;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.main-stage {
  display: grid;
  gap: 24px;
}

.terminal-panel {
  background: var(--panel-strong);
}

.terminal-output {
  min-height: 180px;
  background:
    linear-gradient(180deg, rgba(134, 247, 211, 0.03), rgba(134, 247, 211, 0)),
    rgba(0, 0, 0, 0.28);
  padding: 18px;
  font-family: "Menlo", "Consolas", monospace;
  color: #c7fff2;
  white-space: pre-line;
}

.evidence-box,
.hint-box {
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.evidence-box {
  margin: 18px 0;
  font-family: "Menlo", "Consolas", monospace;
  color: #d4edf0;
  overflow-x: auto;
}

.answer-form {
  display: grid;
  gap: 12px;
}

.answer-input {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  padding: 14px 16px;
}

.answer-input:focus {
  outline: 2px solid rgba(134, 247, 211, 0.32);
  outline-offset: 2px;
}

.primary-button,
.secondary-button,
.ghost-button {
  border-radius: 999px;
  padding: 12px 16px;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.primary-button {
  border: none;
  background: linear-gradient(135deg, #baf8d5, #8dc5ff);
  color: #041018;
  font-weight: 700;
}

.secondary-button,
.ghost-button {
  background: transparent;
  color: var(--text);
}

.ghost-button {
  padding: 8px 12px;
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.feedback {
  min-height: 28px;
  margin: 14px 0 0;
  color: var(--accent-warm);
}

.feedback.success {
  color: var(--accent);
}

.feedback.error {
  color: var(--danger);
}

.outcome-panel {
  border-color: rgba(134, 247, 211, 0.4);
  background:
    radial-gradient(circle at top right, rgba(134, 247, 211, 0.12), transparent 40%),
    var(--panel);
}

@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .app-shell {
    width: min(100% - 24px, 1180px);
    padding-top: 24px;
  }

  .hero-panel,
  .panel {
    padding: 20px;
  }
}