/* ========================================================================
   GRIDLOCK - Tactical Minimalism
   ======================================================================== */

:root {
  --bg: #0a0a0a;
  --bg-elev: #141414;
  --bg-elev-2: #1c1c1c;
  --border: #27272a;
  --border-strong: #3f3f46;
  --text: #e5e7eb;
  --text-dim: #9ca3af;
  --text-dimmer: #6b7280;
  --text-faint: #4b5563;

  --tier-common: #9ca3af;
  --tier-contested: #f59e0b;
  --tier-signature: #c084fc;
  --tier-private: #14b8a6;

  --suit-circle: #ef4444;
  --suit-triangle: #3b82f6;
  --suit-square: #eab308;
  --suit-cross: #10b981;
  --suit-joker: #ec4899;

  --radius: 8px;
  --radius-lg: 12px;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Menlo', 'Consolas', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ------------------------------------------------------------------------
   START SCREEN
   ------------------------------------------------------------------------ */

.start-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 48px;
}

.wordmark {
  font-size: 48px;
  font-weight: 500;
  letter-spacing: 12px;
  text-transform: lowercase;
  color: var(--text);
  margin: 0;
}

.wordmark-sub {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--text-dimmer);
  text-transform: uppercase;
  text-align: center;
  margin-top: -36px;
  margin-bottom: 24px;
}

.mode-cards {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 800px;
}

.mode-card {
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  width: 320px;
  text-align: left;
  transition: border-color 0.15s, background 0.15s;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mode-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
}

.mode-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.mode-card h2 {
  font-size: 18px;
  font-weight: 500;
  margin: 0;
  letter-spacing: 1px;
}

.mode-card p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.5;
}

.mode-card-meta {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 8px;
  padding-top: 12px;
  border-top: 0.5px solid var(--border);
}

.start-footer {
  position: absolute;
  bottom: 16px;
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 2px;
}

/* ------------------------------------------------------------------------
   RULES / COMPANION SCREEN
   ------------------------------------------------------------------------ */

.rules-screen {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.rules-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.back-link {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 0;
}

.back-link:hover { color: var(--text); }

.rules-title {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 4px;
  margin: 0 0 8px;
}

.rules-sub {
  font-size: 12px;
  color: var(--text-dimmer);
  letter-spacing: 2px;
  margin-bottom: 32px;
}

.rules-section {
  border-top: 0.5px solid var(--border);
  padding: 24px 0;
}

.rules-section h3 {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 12px;
}

.rules-section p {
  margin: 0 0 12px;
  color: var(--text);
}

.rules-section ul {
  margin: 0 0 12px;
  padding-left: 20px;
}

.rules-section li {
  margin-bottom: 6px;
  color: var(--text);
}

.companion-link {
  display: block;
  padding: 16px;
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  margin-top: 16px;
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s;
}

.companion-link:hover { border-color: var(--border-strong); }

.companion-link-url {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--tier-contested);
  margin-top: 4px;
}

/* ------------------------------------------------------------------------
   GAME SCREEN - HEADER
   ------------------------------------------------------------------------ */

.game-screen {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
  gap: 16px;
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 0.5px solid var(--border);
}

.game-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.game-wordmark {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 4px;
  color: var(--text);
}

.game-meta {
  display: flex;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dimmer);
}

.game-meta span strong {
  color: var(--text);
  font-weight: 500;
  margin-left: 6px;
}

.game-header-right {
  display: flex;
  gap: 8px;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 0.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transition: border-color 0.15s, color 0.15s;
}

.icon-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

/* ------------------------------------------------------------------------
   OBJECTIVE STRIP
   ------------------------------------------------------------------------ */

.objective-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.objective-card {
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  position: relative;
  overflow: hidden;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  text-align: left;
  transition: border-color 0.15s;
}

.objective-card.claimable:hover {
  border-color: var(--tier-contested);
}

.objective-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--tier);
}

.objective-card[data-tier="common"]    { --tier: var(--tier-common); }
.objective-card[data-tier="contested"] { --tier: var(--tier-contested); }
.objective-card[data-tier="signature"] { --tier: var(--tier-signature); }
.objective-card[data-tier="private"]   { --tier: var(--tier-private); }

.objective-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.objective-tier-label {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--tier);
  font-weight: 500;
}

.objective-points {
  font-size: 18px;
  font-weight: 500;
  color: var(--tier);
}

.objective-body {
  font-size: 12px;
  color: var(--text);
  line-height: 1.4;
  flex: 1;
}

.objective-status {
  font-size: 10px;
  color: var(--text-dimmer);
  margin-top: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.objective-status.qualified { color: var(--tier-signature); }
.objective-status.claimed { color: var(--tier-contested); font-weight: 500; }
.objective-status.sticky { color: var(--tier-signature); font-weight: 500; }
.objective-status.blocked { color: var(--text-faint); }

.claim-btn {
  margin-top: 8px;
  padding: 4px 8px;
  border: 0.5px solid var(--tier-contested);
  color: var(--tier-contested);
  border-radius: 4px;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  align-self: flex-start;
  transition: background 0.15s;
}

.claim-btn:hover {
  background: rgba(245, 158, 11, 0.1);
}

/* ------------------------------------------------------------------------
   ARENA (player grids + deck area)
   ------------------------------------------------------------------------ */

.arena {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: start;
}

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

.player-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 6px 4px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dimmer);
}

.player-label.active {
  color: var(--tier-signature);
}

.player-label strong {
  color: var(--text);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 1px;
}

.grid-wrap {
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 6px;
  aspect-ratio: 4 / 3;
}

.grid-slot {
  background: var(--bg);
  border: 0.5px dashed var(--border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 2.5 / 3.5;
  position: relative;
  transition: border-color 0.15s, background 0.15s;
}

.grid-slot.empty {
  /* default look */
}

.grid-slot.highlight-target {
  border: 0.5px solid var(--tier-signature);
  background: rgba(192, 132, 252, 0.08);
  cursor: pointer;
}

.grid-slot.highlight-target:hover {
  background: rgba(192, 132, 252, 0.15);
}

.center-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  padding: 0 12px;
  min-width: 120px;
}

@media (max-width: 900px) {
  .center-column {
    flex-direction: row;
    padding: 12px 0;
    justify-content: center;
  }
}

.stack {
  width: 72px;
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.stack-label {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dimmer);
}

.stack-count {
  font-size: 11px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.stack-pile {
  position: relative;
  aspect-ratio: 2.5 / 3.5;
  width: 100%;
}

.stack-pile.empty {
  border: 0.5px dashed var(--border);
  border-radius: 4px;
}

.stack-pile.clickable {
  cursor: pointer;
}

.stack-pile.clickable:hover .card {
  transform: scale(1.03);
  transition: transform 0.15s;
}

/* ------------------------------------------------------------------------
   CARDS
   ------------------------------------------------------------------------ */

.card {
  background: #0a0a0a;
  border: 0.5px solid #2a2a2a;
  border-radius: 4px;
  aspect-ratio: 2.5 / 3.5;
  width: 100%;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.card.facedown {
  background:
    repeating-linear-gradient(45deg,
      #0a0a0a 0,
      #0a0a0a 4px,
      #151515 4px,
      #151515 8px);
  border-color: #3a3a3a;
}

.card.facedown::after {
  content: '';
  position: absolute;
  inset: 4px;
  border: 0.5px solid #2a2a2a;
  border-radius: 2px;
}

.card-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1;
  color: var(--suit-color, var(--text));
}

.card-corner.tl { top: 4px; left: 4px; }
.card-corner.br { bottom: 4px; right: 4px; transform: rotate(180deg); transform-origin: center; }

.card-center {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.suit-glyph {
  width: 50%;
  height: 50%;
}

.suit-circle {
  border-radius: 50%;
  background: var(--suit-circle);
}

.suit-triangle {
  background: var(--suit-triangle);
  clip-path: polygon(50% 8%, 92% 90%, 8% 90%);
}

.suit-square {
  background: var(--suit-square);
  border-radius: 2px;
}

.suit-cross {
  background: none;
  position: relative;
}

.suit-cross::before,
.suit-cross::after {
  content: '';
  position: absolute;
  background: var(--suit-cross);
}

.suit-cross::before {
  left: 33%;
  right: 33%;
  top: 0;
  bottom: 0;
  border-radius: 1px;
}

.suit-cross::after {
  top: 33%;
  bottom: 33%;
  left: 0;
  right: 0;
  border-radius: 1px;
}

.suit-joker {
  background: var(--suit-joker);
  clip-path: polygon(50% 0, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.card[data-suit="circle"]   { --suit-color: var(--suit-circle); }
.card[data-suit="triangle"] { --suit-color: var(--suit-triangle); }
.card[data-suit="square"]   { --suit-color: var(--suit-square); }
.card[data-suit="cross"]    { --suit-color: var(--suit-cross); }
.card[data-suit="joker"]    { --suit-color: var(--suit-joker); }

/* ------------------------------------------------------------------------
   PLAYER HAND + ACTIONS
   ------------------------------------------------------------------------ */

.hand-area {
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hand {
  display: flex;
  gap: 8px;
  min-height: 100px;
}

.hand-slot {
  width: 72px;
  aspect-ratio: 2.5 / 3.5;
  border: 0.5px dashed var(--border);
  border-radius: 4px;
  background: var(--bg);
}

.hand-card {
  width: 72px;
  cursor: pointer;
  transition: transform 0.15s;
}

.hand-card:hover {
  transform: translateY(-4px);
}

.hand-card.selected {
  outline: 2px solid var(--tier-signature);
  outline-offset: 2px;
  transform: translateY(-8px);
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.action-btn {
  padding: 8px 14px;
  border: 0.5px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: border-color 0.15s, background 0.15s;
}

.action-btn:not(:disabled):hover {
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
}

.action-btn.primary {
  border-color: var(--tier-signature);
  color: var(--tier-signature);
}

.action-btn.primary:hover {
  background: rgba(192, 132, 252, 0.08);
}

.action-btn.danger {
  color: var(--tier-contested);
  border-color: var(--tier-contested);
}

.action-btn.danger:hover {
  background: rgba(245, 158, 11, 0.1);
}

/* ------------------------------------------------------------------------
   TURN STATUS BANNER
   ------------------------------------------------------------------------ */

.turn-banner {
  background: var(--bg-elev);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.turn-banner.countdown {
  border-color: var(--tier-contested);
  color: var(--tier-contested);
}

.turn-banner.ai-turn {
  border-color: var(--suit-triangle);
  color: var(--text-dim);
}

.turn-banner-action {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1px;
}

/* ------------------------------------------------------------------------
   MODALS
   ------------------------------------------------------------------------ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: var(--bg-elev);
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 32px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 3px;
  margin: 0 0 16px;
}

.modal p { color: var(--text); margin: 0 0 12px; }

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.modal-score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 0.5px solid var(--border);
}

.modal-score-row:last-child {
  border-bottom: none;
  padding-top: 16px;
  margin-top: 8px;
  border-top: 0.5px solid var(--border-strong);
  font-weight: 500;
}

.modal-score-row .name {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.modal-score-row .val {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
}

.score-breakdown {
  font-size: 11px;
  color: var(--text-dimmer);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ------------------------------------------------------------------------
   TOAST
   ------------------------------------------------------------------------ */

#toast-root {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  background: var(--bg-elev-2);
  border: 0.5px solid var(--border-strong);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: 1.5px;
  color: var(--text);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  animation: toast-in 0.2s ease-out;
  max-width: 360px;
  text-align: center;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ------------------------------------------------------------------------
   UTIL
   ------------------------------------------------------------------------ */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.hidden { display: none !important; }

/* Small responsive tweaks */
@media (max-width: 700px) {
  .objective-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .wordmark { font-size: 32px; letter-spacing: 8px; }
  .hand-card, .hand-slot, .stack { width: 56px; }
}