/* ═══════════════════════════════════════════════════
   SKETCHORDLE — TRUE NOIR
   Pure black & white. Harsh contrast. No color.
   ═══════════════════════════════════════════════════ */

:root {
  --bg: #000000;
  --bg-raised: #0a0a0a;
  --bg-surface: #111111;
  --border: #2a2a2a;
  --border-light: #1a1a1a;

  --paper: #ffffff;

  --text: #ffffff;
  --text-mid: #999999;
  --text-dim: #555555;

  --correct: #ffffff;
  --wrong: #555555;

  --font-mono: 'Special Elite', 'Courier New', monospace;
  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;

  --header-h: 48px;
  --radius: 0px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Film grain */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='300' height='300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='0.9' numOctaves='4' type='fractalNoise' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ═══ HEADER ═══ */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
  z-index: 100;
}

.header-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--text);
  font-weight: 400;
}

.header-icon-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-mid);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.header-icon-btn:hover {
  border-color: var(--text-mid);
  color: var(--text);
}

.clue-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--text-mid);
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  min-width: 60px;
}
.header-right { justify-content: flex-end; }

/* ═══ HELP MODAL ═══ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.hidden { display: none; }

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 12px; right: 14px;
  background: none; border: none;
  color: var(--text-mid);
  font-size: 1.3rem;
  cursor: pointer;
}
.modal-close:hover { color: var(--text); }

.modal-card h2 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  color: var(--text);
}

.modal-card p {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.modal-steps {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.modal-step {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text);
}

.modal-step-icon { font-size: 1rem; }

.modal-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ═══ SPLIT LAYOUT ═══ */
.game-split {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.mobile-tabs {
  display: none;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  flex-shrink: 0;
}

.mobile-tab {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-mid);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.mobile-tab.active {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ═══ LEFT PANEL — Case File ═══ */
.panel-clues {
  width: 380px;
  min-width: 300px;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 14px;
  gap: 12px;
  background: var(--bg);
}

.panel-clues::-webkit-scrollbar { width: 3px; }
.panel-clues::-webkit-scrollbar-track { background: transparent; }
.panel-clues::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.case-file {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-surface);
  flex-shrink: 0;
}

.file-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
}

.file-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-mid);
}

.file-case {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.file-body { padding: 12px; }

.clues-container {
  display: flex;
  flex-direction: column;
}

.clue-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
  opacity: 0;
  transform: translateY(4px);
  transition: all 0.3s ease;
}
.clue-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.clue-item:last-child { border-bottom: none; }

.clue-number {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-mid);
  margin-bottom: 3px;
  display: block;
}

.clue-text {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--text);
}

.clue-item.typing .clue-text::after {
  content: '▌';
  animation: blink 0.6s step-end infinite;
  color: var(--text);
  margin-left: 1px;
  font-size: 0.75rem;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.clue-progress {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  margin-top: 10px;
  overflow: hidden;
}

.clue-progress-fill {
  height: 100%;
  background: var(--text);
  border-radius: 1px;
  transition: width 0.4s ease;
  width: 0%;
}

/* ═══ GUESS SECTION ═══ */
.guess-section { flex-shrink: 0; }

.guess-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.guess-input {
  flex: 1;
  padding: 10px 12px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.15s;
}
.guess-input::placeholder { color: var(--text-dim); }
.guess-input:focus { border-color: var(--text-mid); }

.btn-guess {
  padding: 10px 16px;
  background: var(--text);
  border: none;
  border-radius: var(--radius);
  color: var(--bg);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn-guess:hover { background: var(--text-mid); }

.guess-history {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
  max-height: 120px;
  overflow-y: auto;
}

.guess-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  animation: slideIn 0.2s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: translateX(0); }
}

.guess-entry.wrong {
  background: rgba(138,74,74,0.12);
  border: 1px solid rgba(138,74,74,0.25);
  text-decoration: line-through;
  text-decoration-color: var(--wrong);
}
.guess-entry.correct {
  background: rgba(90,138,90,0.12);
  border: 1px solid rgba(90,138,90,0.25);
}

.guess-icon { font-size: 0.75rem; flex-shrink: 0; }
.guess-name { flex: 1; font-weight: 500; }
.guess-clue-tag {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.action-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-next {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-mid);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-next:hover {
  border-color: var(--text-mid);
  color: var(--text);
}

.btn-giveup {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  padding: 8px 6px;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
  transition: color 0.15s;
}
.btn-giveup:hover { color: var(--text-mid); }

/* ═══ RESULT SECTION ═══ */
.result-section { text-align: center; }
.result-section.hidden { display: none; }

.result-banner {
  padding: 12px 0;
  animation: popIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes popIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.result-banner h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  margin-bottom: 4px;
}

.result-banner p {
  font-family: var(--font-mono);
  color: var(--text-mid);
  font-size: 0.75rem;
}

.suspect-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 10px 0;
  text-align: left;
  animation: revealCard 0.4s ease 0.1s both;
}
@keyframes revealCard {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.suspect-emoji { font-size: 2rem; }
.suspect-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}
.suspect-from {
  font-size: 0.7rem;
  color: var(--text-mid);
  margin-top: 2px;
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 12px 0;
}

.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.stat-label {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.result-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 8px;
}

.btn-share {
  padding: 10px 20px;
  background: var(--text);
  border: none;
  border-radius: var(--radius);
  color: var(--bg);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-share:hover { background: var(--text-mid); }

.btn-newcase {
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-mid);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-newcase:hover {
  border-color: var(--text-mid);
  color: var(--text);
}

/* ═══ RIGHT PANEL — Sketch Canvas ═══ */
.panel-sketch {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-raised);
  overflow: hidden;
}

.canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px;
  min-height: 0;
}

.canvas-container {
  position: relative;
  background: var(--paper);
  border: none;
  border-radius: 1px;
  overflow: hidden;
  box-shadow:
    0 1px 2px rgba(0,0,0,0.3),
    0 4px 16px rgba(0,0,0,0.25);
  touch-action: none;
  max-width: 100%;
  max-height: 100%;
}

canvas {
  display: block;
  cursor: crosshair;
}

/* ═══ TOOLBAR ═══ */
.sketch-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  margin: 0 14px 10px;
  flex-shrink: 0;
}

.tool-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 4px;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.12s;
}
.tool-btn:hover { color: var(--text); background: var(--bg-surface); }
.tool-btn.active {
  color: var(--text);
  border-color: var(--border);
  background: var(--bg-raised);
}

.size-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.12s;
}
.size-btn span {
  display: block;
  background: var(--text-dim);
  border-radius: 50%;
  transition: background 0.12s;
}
.size-btn:hover span { background: var(--text-mid); }
.size-btn.active {
  border-color: var(--border);
  background: var(--bg-raised);
}
.size-btn.active span { background: var(--text); }

.shade-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.12s;
  background: transparent;
}
.shade-btn span {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid var(--border);
}
.shade-btn:hover { transform: scale(1.15); }
.shade-btn.active { border-color: var(--text); }

/* ═══ TOAST ═══ */
.share-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 8px 18px;
  border-radius: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  z-index: 1000;
  animation: toastIn 0.2s ease;
}
.share-toast.hidden { display: none; }
@keyframes toastIn {
  from { transform: translateX(-50%) translateY(8px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* ═══ UTILITIES ═══ */
.hidden { display: none !important; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-3px); }
  40%, 80% { transform: translateX(3px); }
}
.guess-input.shake {
  animation: shake 0.35s ease;
  border-color: var(--wrong) !important;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 800px) {
  .mobile-tabs { display: none; }

  .game-split {
    flex-direction: column;
  }

  /* Canvas on bottom — larger */
  .panel-sketch {
    display: flex !important;
    flex: 1 1 55vh;
    border-top: 1px solid var(--border);
    min-height: 0;
  }

  .canvas-area {
    padding: 8px;
  }

  .canvas-container {
    max-height: 100%;
  }

  /* Clues on top — compact, scrollable */
  .panel-clues {
    width: 100%;
    min-width: unset;
    max-width: unset;
    border-right: none;
    flex: 0 1 45vh;
    min-height: 0;
    overflow-y: auto;
  }

  .sketch-toolbar {
    border-radius: var(--radius);
    padding: 4px 6px;
    margin: 4px 6px 6px;
    gap: 2px;
  }

  .sketch-toolbar .tool-sep { margin: 0 2px; }
}

@media (min-width: 1200px) {
  .panel-clues {
    width: 420px;
    max-width: 480px;
  }
}