/* ============================================================================
   CHRONOS: La Guerra por la Memoria — Estilos
   ============================================================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0D1117;
  --panel: #161B22;
  --border: #30363D;
  --text: #C9D1D9;
  --text-dim: #8B949E;
  --gold: #D29922;
  --blue: #58A6FF;
  --red: #F85149;
  --green: #3FB950;
  --white: #E6EDF3;
  --purple: #A371F7;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
}

.hidden { display: none !important; }

/* ---- Faction Select Screen ---- */
#screen-faction {
  position: fixed; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--bg);
  z-index: 100;
  overflow-y: auto;
  padding: 20px;
}

.faction-select-title {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: 12px;
  background: linear-gradient(135deg, var(--blue), var(--red), var(--green), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  margin-bottom: 4px;
  font-family: 'Courier New', monospace;
}

.faction-select-subtitle {
  font-size: 1.1rem;
  color: var(--text-dim);
  letter-spacing: 4px;
  margin-bottom: 24px;
  font-family: monospace;
}

.faction-select-desc {
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: 16px;
}

.btn-continue {
  background: var(--gold);
  color: var(--bg);
  border: none;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  margin-bottom: 24px;
  transition: all 0.2s;
}
.btn-continue:hover { transform: scale(1.05); filter: brightness(1.2); }

.faction-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  max-width: 1200px;
  width: 100%;
}

.faction-card {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.faction-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--fc);
}
.faction-card:hover {
  border-color: var(--fc);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5), 0 0 20px color-mix(in srgb, var(--fc) 30%, transparent);
}

.faction-emoji { font-size: 2.5rem; margin-bottom: 8px; }
.faction-name { font-size: 1.3rem; font-weight: 700; color: var(--fc); margin-bottom: 4px; }
.faction-leader { font-size: 0.9rem; color: var(--text); font-weight: 600; }
.faction-leader-title { font-size: 0.75rem; color: var(--text-dim); font-style: italic; margin-bottom: 10px; }
.faction-desc { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 12px; line-height: 1.4; }
.faction-bonus { font-size: 0.8rem; color: var(--green); margin-bottom: 4px; }
.faction-weakness { font-size: 0.8rem; color: var(--red); margin-bottom: 8px; }
.faction-special { font-size: 0.8rem; color: var(--gold); margin-bottom: 4px; }
.faction-victory { font-size: 0.8rem; color: var(--purple); font-weight: 600; }

/* ---- Game Screen Layout ---- */
#screen-game {
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 1fr 300px;
  height: 100vh;
  width: 100vw;
}

/* ---- HUD Top Bar ---- */
#hud-bar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  min-height: 44px;
}

#hud-turn {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--gold);
  margin-right: 8px;
}

#hud-faction {
  font-weight: 700;
  font-size: 0.9rem;
  margin-right: 16px;
}

.res-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(255,255,255,0.04);
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  white-space: nowrap;
}

.res-icon { font-size: 0.9rem; }
.res-value { font-weight: 700; min-width: 28px; text-align: right; }

.hud-spacer { flex: 1; }

.hud-btn {
  background: var(--border);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.hud-btn:hover { background: rgba(255,255,255,0.1); border-color: var(--text-dim); }

#btn-end-turn {
  background: linear-gradient(135deg, #1F6FEB, #58A6FF);
  border: none;
  color: #FFF;
  padding: 6px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9rem;
  transition: all 0.2s;
}
#btn-end-turn:hover { filter: brightness(1.2); transform: scale(1.05); }
#btn-end-turn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* ---- Canvas Area ---- */
#canvas-container {
  grid-column: 1;
  grid-row: 2;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

#game-canvas {
  display: block;
}

/* ---- Side Panel ---- */
#side-panel {
  grid-column: 2;
  grid-row: 2 / 4;
  background: var(--panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 12px;
}

#panel-content {
  font-size: 0.85rem;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.03);
  border-radius: 6px;
}

.panel-icon { font-size: 1.8rem; }

.panel-section {
  padding: 8px 0;
  border-top: 1px solid var(--border);
}

.panel-label { color: var(--text-dim); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.panel-value { font-family: 'Courier New', monospace; font-weight: 600; margin-bottom: 4px; }
.panel-subtitle { color: var(--gold); font-weight: 700; font-size: 0.8rem; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px; }

.prod-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.prod-grid span {
  background: rgba(255,255,255,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.8rem;
}

.building-item, .unit-item {
  padding: 4px 0;
  font-size: 0.83rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.unit-stats { color: var(--text-dim); font-family: monospace; font-size: 0.75rem; }

/* Build & Recruit buttons */
.btn-build, .btn-recruit {
  display: block;
  width: 100%;
  text-align: left;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  margin-bottom: 4px;
  transition: all 0.15s;
}
.btn-build:hover, .btn-recruit:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--gold);
}
.btn-build.disabled, .btn-recruit.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}
.cost {
  float: right;
  color: var(--text-dim);
  font-family: monospace;
  font-size: 0.75rem;
}

/* ---- Bottom Log ---- */
#log-bar {
  grid-column: 1;
  grid-row: 3;
  background: var(--panel);
  border-top: 1px solid var(--border);
  max-height: 100px;
  overflow: hidden;
}

#log-container {
  padding: 6px 12px;
  overflow-y: auto;
  max-height: 96px;
  font-family: 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.log-entry { padding: 1px 0; }

/* ---- Modal ---- */
#modal {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.75);
  z-index: 200;
}

.modal-box {
  background: var(--panel);
  border: 2px solid var(--gold);
  border-radius: 12px;
  padding: 24px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 0 40px rgba(210, 153, 34, 0.2);
}

#modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 12px;
}

#modal-body {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 16px;
}

.event-effect {
  margin-top: 8px;
  font-family: monospace;
  font-weight: 700;
  color: var(--gold);
  font-size: 1rem;
}

#modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-modal {
  background: linear-gradient(135deg, var(--border), rgba(255,255,255,0.1));
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s;
  text-align: center;
}
.btn-modal:hover { background: rgba(210, 153, 34, 0.2); transform: scale(1.02); }

.stats-grid {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: monospace;
  font-size: 0.85rem;
}

/* ---- Tech Panel ---- */
#tech-panel {
  position: fixed;
  top: 50px; left: 50%;
  transform: translateX(-50%);
  width: 500px;
  max-width: 90vw;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--panel);
  border: 2px solid var(--purple);
  border-radius: 12px;
  padding: 16px;
  z-index: 150;
  box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}

.tech-header {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 12px;
  text-align: center;
}

.tech-current {
  background: rgba(163, 113, 247, 0.1);
  border: 1px solid var(--purple);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 12px;
}

.tech-name { font-weight: 700; margin-bottom: 6px; }

.tech-progress {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}

.tech-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--purple), var(--blue));
  border-radius: 3px;
  transition: width 0.5s;
}

.tech-eta { font-size: 0.75rem; color: var(--text-dim); }

.tech-branch { margin-bottom: 12px; }
.tech-branch-name {
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  margin-bottom: 2px;
  font-size: 0.83rem;
  cursor: default;
  transition: all 0.15s;
}

.tech-item.researched { color: var(--green); opacity: 0.7; }
.tech-item.current { color: var(--purple); background: rgba(163,113,247,0.1); }
.tech-item.available {
  cursor: pointer;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
}
.tech-item.available:hover { border-color: var(--purple); background: rgba(163,113,247,0.1); }
.tech-item.locked { opacity: 0.3; }

.tech-icon { font-size: 1.1rem; }
.tech-cost { margin-left: auto; font-family: monospace; font-size: 0.7rem; color: var(--text-dim); }

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 120px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--panel);
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  transition: all 0.3s;
  z-index: 300;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  #screen-game {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto auto;
  }
  #side-panel {
    grid-column: 1;
    grid-row: 4;
    border-left: none;
    border-top: 1px solid var(--border);
    max-height: 250px;
  }
  #log-bar { grid-row: 3; }
  .faction-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .faction-grid { grid-template-columns: 1fr; }
  .faction-select-title { font-size: 2rem; letter-spacing: 6px; }
  .res-group { padding: 2px 4px; font-size: 0.75rem; }
  #hud-bar { padding: 4px 6px; gap: 4px; }
  #tech-panel { width: 95vw; }
  #zoom-controls { bottom: 12px; left: 8px; }
}

/* ---- v2.0: Zoom Controls ---- */
#zoom-controls {
  position: absolute;
  bottom: 20px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 20;
}

.zoom-btn {
  width: 40px;
  height: 40px;
  background: rgba(22, 27, 34, 0.85);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.4rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  user-select: none;
  -webkit-user-select: none;
}

.zoom-btn:hover {
  background: rgba(88, 166, 255, 0.2);
  border-color: var(--blue);
  color: var(--blue);
}

.zoom-btn:active {
  transform: scale(0.92);
}

.zoom-btn-small {
  width: 36px;
  height: 36px;
  font-size: 1rem;
}

/* ---- v2.0: Faction Select Version Badge ---- */
.faction-select-version {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 3px;
  margin-bottom: 16px;
  opacity: 0.6;
}

/* ---- v2.0: Pause Menu ---- */
#pause-menu {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pause-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.pause-box {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--gold);
  border-radius: 16px;
  padding: 32px 40px;
  min-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 0 60px rgba(210, 153, 34, 0.15);
  z-index: 1;
}

.pause-title {
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
  letter-spacing: 4px;
}

.pause-btn {
  width: 100%;
  text-align: center;
}

/* ---- v2.0: Log Entries Clickable ---- */
.log-clickable {
  cursor: pointer;
  transition: color 0.15s;
}

.log-clickable:hover {
  color: var(--blue);
}

/* ---- v2.0: Panel actions layout ---- */
.panel-actions {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

/* ---- v2.0: Canvas grab cursor ---- */
#game-canvas {
  cursor: pointer;
  touch-action: none;
}

/* ---- v2.0: Multiplayer Faction Select ---- */
.faction-toggle {
  display: flex;
  gap: 6px;
  margin-top: 12px;
}

.toggle-btn {
  flex: 1;
  padding: 8px 4px;
  font-size: 0.8rem;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
}

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

.toggle-btn.active[data-mode="human"] {
  border-color: var(--green);
  background: rgba(63, 185, 80, 0.15);
  color: var(--green);
}

.toggle-btn.active[data-mode="ai"] {
  border-color: var(--red);
  background: rgba(248, 81, 73, 0.15);
  color: var(--red);
}

.faction-card-human {
  border-color: rgba(63, 185, 80, 0.4);
}

.faction-card-ai {
  opacity: 0.7;
}

.btn-start-game {
  margin-top: 24px;
  padding: 16px 48px;
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 3px;
  border: 2px solid var(--gold);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(210, 153, 34, 0.2), rgba(210, 153, 34, 0.05));
  color: var(--gold);
  cursor: pointer;
  transition: all 0.3s;
}

.btn-start-game:hover:not(:disabled) {
  transform: scale(1.05);
  background: rgba(210, 153, 34, 0.3);
  box-shadow: 0 0 30px rgba(210, 153, 34, 0.2);
}

.btn-start-game:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.start-game-info {
  margin-top: 10px;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

/* ---- v2.0: Pass Device Screen ---- */
.pass-device-content {
  text-align: center;
  padding: 16px 0;
}

.pass-device-emoji {
  font-size: 4rem;
  margin-bottom: 12px;
}

.pass-device-faction {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.pass-device-leader {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.pass-device-msg {
  font-size: 1rem;
  color: var(--text);
  margin-top: 12px;
}

.btn-ready {
  font-size: 1.1rem;
  padding: 12px 32px;
  font-weight: 700;
  letter-spacing: 2px;
}