/* ============================================================
   DEFUSE PROTOCOL — dark industrial theme
   ============================================================ */
:root {
  --bg: #0c0f14;
  --panel: #161b24;
  --panel-2: #1e2530;
  --line: #2c3645;
  --text: #d7e0ec;
  --muted: #7d8aa0;
  --accent: #39d98a;
  --accent-2: #ffd23f;
  --danger: #ff4d5e;
  --mono: 'Cascadia Code', 'Consolas', 'Courier New', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---------- screens ---------- */
.screen { display: none; min-height: 100vh; padding: 16px; }
.screen.active { display: block; }
#screen-home.active, #screen-lobby.active, #screen-end.active {
  display: flex; align-items: center; justify-content: center;
}

/* ---------- home ---------- */
.home-card, .lobby-card, .end-card {
  width: min(480px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.logo {
  font-size: 2rem; letter-spacing: 0.25em; text-align: center;
}
.logo span { color: var(--accent); display: block; font-size: 1.2rem; letter-spacing: 0.6em; }
.tagline { color: var(--muted); text-align: center; margin: 12px 0 24px; font-size: 0.85rem; }

.field-hint { color: var(--muted); font-size: 0.68rem; letter-spacing: 0.04em; margin-top: 6px; line-height: 1.35; }
.field-hint.alert { color: var(--danger); }
.seed-row { display: flex; gap: 8px; align-items: stretch; }
.seed-row input {
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  min-width: 0;
}
.seed-row .btn {
  flex: 0 0 auto;
  padding: 10px 14px;
  letter-spacing: 0.12em;
}
.field span { display: block; font-size: 0.7rem; color: var(--muted); letter-spacing: 0.15em; margin-bottom: 6px; }
.field input, .field select, .join-row input {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1rem;
  padding: 10px 12px;
  border-radius: 8px;
  outline: none;
}
.field input:focus, .join-row input:focus { border-color: var(--accent); }

.btn {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 18px;
  cursor: pointer;
  transition: transform 0.06s, background 0.15s, border-color 0.15s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--accent); color: #06251a; border-color: var(--accent); font-weight: bold; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.small { padding: 8px 12px; font-size: 0.75rem; }
.btn.ghost { background: transparent; color: var(--muted); border-color: transparent; margin-top: 12px; width: 100%; }
.btn.active-role { background: var(--accent); color: #06251a; border-color: var(--accent); }

.home-toolbar {
  display: flex;
  justify-content: flex-end;
  margin: -8px -8px 8px 0;
}
.home-toolbar .btn { letter-spacing: 0.12em; }

.overlay {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(6, 8, 12, 0.72);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.overlay.hidden { display: none !important; }
.settings-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
}
.settings-card h2 {
  letter-spacing: 0.22em;
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.settings-lead {
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 18px;
  line-height: 1.4;
}
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  margin-bottom: 8px;
}

.settings-note {
  margin: 12px 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.4;
}
.field-inline {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.field-inline span {
  flex: 1;
}
.field-inline select {
  width: auto;
  min-width: 90px;
}
@media (max-width: 420px) {
  .settings-grid { grid-template-columns: 1fr; }
}
.home-actions { display: flex; flex-direction: column; gap: 12px; }
.home-actions .primary { width: 100%; }
.home-actions .ghost {
  display: block; text-align: center; text-decoration: none;
  margin-top: 0; border: 1px dashed var(--line);
}
.home-actions button:disabled {
  opacity: 0.45; cursor: not-allowed;
}
.join-row { display: flex; gap: 8px; }
.join-row input { text-transform: uppercase; letter-spacing: 0.3em; flex: 1; }

.error-text { color: var(--danger); font-size: 0.8rem; min-height: 1.2em; margin-top: 10px; text-align: center; }

.stats-panel { margin-top: 20px; border-top: 1px dashed var(--line); padding-top: 16px; }
.stats-panel h3 { font-size: 0.7rem; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 10px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat-cell { background: var(--panel-2); border-radius: 8px; padding: 8px; text-align: center; }
.stat-cell b { display: block; font-size: 1.1rem; color: var(--accent); }
.stat-cell span { font-size: 0.6rem; color: var(--muted); letter-spacing: 0.1em; }

/* ---------- lobby ---------- */
.lobby-card h2 { letter-spacing: 0.2em; font-size: 1.1rem; margin-bottom: 16px; }
.room-code-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; color: var(--muted); font-size: 0.75rem; }
.room-code { font-size: 1.6rem; letter-spacing: 0.4em; color: var(--accent-2); }

.player-list { list-style: none; margin-bottom: 16px; }
.player-list li {
  display: flex; justify-content: space-between; padding: 8px 12px;
  background: var(--panel-2); border-radius: 8px; margin-bottom: 6px; font-size: 0.85rem;
}
.player-role { color: var(--muted); font-size: 0.7rem; letter-spacing: 0.15em; }
.player-role.defuser { color: var(--danger); }
.player-role.expert { color: var(--accent); }

.role-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; font-size: 0.7rem; color: var(--muted); letter-spacing: 0.15em; }
.role-toggle { display: flex; gap: 6px; }

.host-controls { border-top: 1px dashed var(--line); padding-top: 16px; }
.host-controls .primary { width: 100%; }
.hint { color: var(--muted); font-size: 0.75rem; text-align: center; margin-top: 12px; }

/* ---------- game HUD ---------- */
.game-header {
  display: flex; gap: 12px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 16px; margin-bottom: 16px;
  position: sticky; top: 8px; z-index: 5;
}
.hud-block { display: flex; flex-direction: column; min-width: 70px; }
.hud-label { font-size: 0.6rem; color: var(--muted); letter-spacing: 0.2em; }
.hud-timer { font-size: 1.6rem; color: var(--accent); font-weight: bold; }
.hud-timer.low { color: var(--danger); animation: pulse 1s infinite; }
.hud-strikes { font-size: 1.3rem; letter-spacing: 0.2em; color: var(--danger); }
.hud-seed { font-size: 0.8rem; color: var(--muted); align-self: flex-end; margin-top: auto; }
#hud-solved { font-size: 1.3rem; color: var(--accent-2); }
.hud-right { margin-left: auto; }
.hud-select {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; font-family: var(--mono); font-size: 0.75rem;
  padding: 4px 6px; margin-top: 2px; cursor: pointer; outline: none;
}
.hud-select:focus { border-color: var(--accent); }

@keyframes pulse { 50% { opacity: 0.4; } }

/* ---------- defuser device (3D scene) ---------- */
#defuser-area { display: flex; flex-direction: column; gap: 8px; }
#scene-container {
  width: 100%;
  height: calc(100vh - 170px);
  min-height: 380px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #0a0c11;
  cursor: grab;
}
#game-split {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#game-split:has(#defuser-area:not(.hidden)):has(#expert-area:not(.hidden)) {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: start;
}
#game-split:has(#defuser-area:not(.hidden)):has(#expert-area:not(.hidden)) #scene-container {
  height: calc(100vh - 160px);
}
.btn-vr {
  background: #1a3a2a !important;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  letter-spacing: 0.08em;
}
.xr-status {
  text-align: center;
  font-size: 0.7rem;
  color: var(--muted);
  margin: -8px 0 16px;
  letter-spacing: 0.04em;
}
.controls-hint {
  margin-top: 14px;
  font-size: 0.7rem;
  line-height: 1.45;
}
/* Immersive VR: hide HTML chrome (Quest can't use DOM HUD in-headset) */
body.xr-presenting .game-header,
body.xr-presenting .scene-hint,
body.xr-presenting #expert-area,
body.xr-presenting #strike-flash {
  display: none !important;
}
body.xr-presenting #screen-game {
  padding: 0;
}
body.xr-presenting #scene-container {
  position: fixed;
  inset: 0;
  height: 100vh !important;
  min-height: 100vh;
  border: none;
  border-radius: 0;
  z-index: 40;
}
#scene-container:active { cursor: grabbing; }
#scene-container canvas { display: block; width: 100% !important; height: 100% !important; }
.scene-hint {
  color: var(--muted); font-size: 0.65rem; letter-spacing: 0.12em;
  text-align: center; padding-bottom: 4px;
}

/* ---------- expert manual ---------- */
.manual-banner {
  background: repeating-linear-gradient(45deg, #3a2d10, #3a2d10 12px, #2c2208 12px, #2c2208 24px);
  color: var(--accent-2); border: 1px solid #5a4a20; border-radius: 8px;
  text-align: center; padding: 10px; font-size: 0.7rem; letter-spacing: 0.2em; margin-bottom: 14px;
}
.manual-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.manual-tab {
  padding: 8px 14px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px 8px 0 0; cursor: pointer; font-family: var(--mono);
  color: var(--muted); font-size: 0.75rem; letter-spacing: 0.1em;
}
.manual-tab.active { color: var(--text); border-color: var(--accent); background: var(--panel-2); }
.manual-tab.solved-tab { color: var(--accent); text-decoration: line-through; }

.manual-content {
  background: #efe9d6; color: #20211f; border-radius: 10px; padding: 24px;
  font-family: Georgia, 'Times New Roman', serif; line-height: 1.55;
  max-width: 860px;
}
.manual-content h2 { font-size: 1.3rem; border-bottom: 2px solid #20211f; padding-bottom: 6px; margin-bottom: 12px; letter-spacing: 0.06em; }
.manual-content .manual-intro { font-style: italic; margin-bottom: 16px; }
.manual-content h3 { margin: 16px 0 8px; font-size: 1rem; }
.manual-content ol, .manual-content ul { margin-left: 22px; margin-bottom: 12px; }
.manual-content li { margin-bottom: 4px; }

.manual-columns { display: flex; gap: 10px; flex-wrap: wrap; }
.manual-col {
  border: 2px solid #20211f; border-radius: 6px; padding: 8px 14px;
  display: flex; flex-direction: column; gap: 6px; text-align: center;
}
.manual-col .col-head { font-weight: bold; border-bottom: 1px solid #20211f; font-size: 0.75rem; }
.manual-col .glyph { font-size: 1.5rem; font-family: var(--mono); }

.manual-table { border-collapse: collapse; margin-top: 8px; }
.manual-table th, .manual-table td { border: 1px solid #20211f; padding: 5px 12px; font-size: 0.85rem; }
.manual-table th { background: #ddd5bc; }

.morse-chart { display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 4px; margin-bottom: 14px; }
.morse-chart div { border: 1px solid #b9b094; border-radius: 4px; padding: 3px 6px; font-size: 0.8rem; font-family: var(--mono); }

.clue-list li { margin-bottom: 8px; }

/* ---------- end screen ---------- */
.end-card { text-align: center; }
.end-card h2 { font-size: 2rem; letter-spacing: 0.3em; margin-bottom: 8px; }
.end-card h2.win { color: var(--accent); }
.end-card h2.loss { color: var(--danger); }
.end-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}
.end-actions .btn { width: 100%; }
.end-actions .ghost { margin-top: 4px; }
.end-reason { color: var(--muted); margin-bottom: 20px; font-size: 0.85rem; }
.end-summary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 24px; }
.end-summary .stat-cell b { font-size: 1.3rem; }

/* strike flash overlay */
.strike-flash {
  position: fixed; inset: 0; background: var(--danger); opacity: 0;
  pointer-events: none; z-index: 50;
}
.strike-flash.go { animation: strikeFlash 0.5s; }
@keyframes strikeFlash { 10% { opacity: 0.45; } 100% { opacity: 0; } }

/* ---------- responsive ---------- */
@media (max-width: 600px) {
  .screen { padding: 10px; }
  #scene-container { height: calc(100vh - 200px); min-height: 300px; }
  .game-header { gap: 8px; padding: 10px; }
  .hud-timer { font-size: 1.3rem; }
  .manual-content { padding: 14px; }
  .home-card, .lobby-card, .end-card { padding: 18px; }
}