/* ═══════════════════════════════════════════════════
   CSS Custom Properties
════════════════════════════════════════════════════ */
:root {
  --bg:              #12110a;
  --bg2:             #1a1a0e;
  --surface:         #252318;
  --surface-raised:  #302e20;
  --surface-high:    #3a3828;
  --border:          rgba(200, 170, 80, 0.18);
  --border-strong:   rgba(200, 170, 80, 0.38);

  --primary:         #c8932a;
  --primary-dark:    #8a5a10;
  --primary-glow:    rgba(200, 147, 42, 0.35);
  --primary-text:    #f0c75e;

  --wood-color:      #c8a87a;
  --gold-color:      #f0c75e;
  --food-color:      #6dba4e;
  --hp-color:        #e74c3c;

  --text:            #e8e4d0;
  --text-dim:        #a09888;
  --text-muted:      #60594a;

  --success:         #27ae60;
  --success-bg:      rgba(39, 174, 96, 0.15);
  --warning:         #f39c12;
  --warning-bg:      rgba(243, 156, 18, 0.15);
  --danger:          #c0392b;
  --danger-bg:       rgba(192, 57, 43, 0.15);
  --info-bg:         rgba(52, 152, 219, 0.15);

  --radius:          12px;
  --radius-sm:       7px;
  --radius-lg:       18px;
  --shadow:          0 4px 20px rgba(0, 0, 0, 0.6);
  --shadow-sm:       0 2px 8px rgba(0, 0, 0, 0.4);
  --inset:           inset 0 1px 0 rgba(255,255,255,0.05);
}

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

html {
  height: 100%;
  font-size: 15px;
}

body {
  min-height: 100%;
  background-color: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

h1, h2, h3 { font-weight: 700; }

/* ═══════════════════════════════════════════════════
   Screen Switching
════════════════════════════════════════════════════ */
body[data-screen="village"] #adventure-wrapper { display: none; }
body[data-screen="adventure"] #village-screen  { display: none; }

body[data-screen="adventure"] {
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════
   Village Screen Layout
════════════════════════════════════════════════════ */
#village-screen {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px 24px;
}

/* Header */
.village-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.title-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.title-icon {
  font-size: 2.8rem;
  filter: drop-shadow(0 2px 6px rgba(200,147,42,0.5));
}

.game-title {
  font-size: 1.6rem;
  color: var(--primary-text);
  text-shadow: 0 0 20px var(--primary-glow);
  letter-spacing: 0.5px;
}

.game-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Village grid */
.village-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto;
  gap: 16px;
}

/* Panel base */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm), var(--inset);
}

.panel-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* Resources */
.resource-panel { grid-column: 1 / -1; }

.resource-row {
  display: flex;
  gap: 12px;
}

.resource-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  transition: border-color 0.2s;
}

.resource-item:hover { border-color: var(--border-strong); }

.resource-icon { font-size: 1.4rem; }
.resource-label { font-size: 0.8rem; color: var(--text-dim); flex: 1; }
.resource-value {
  font-size: 1.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 3ch;
  text-align: right;
}

.resource-item.wood  .resource-value { color: var(--wood-color); }
.resource-item.gold  .resource-value { color: var(--gold-color); }
.resource-item.food  .resource-value { color: var(--food-color); }

/* Hero stats */
.hero-panel { }

.stat-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface-raised);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.stat-icon { font-size: 1rem; width: 1.4rem; text-align: center; }
.stat-label { flex: 1; font-size: 0.85rem; color: var(--text-dim); }
.stat-value { font-weight: 700; color: var(--text); font-size: 1rem; }

/* Buildings */
.buildings-panel { grid-column: 1 / -1; }

.buildings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.building-card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.building-card:hover:not(.locked) {
  border-color: var(--border-strong);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  transform: translateY(-1px);
}

.building-card.locked {
  opacity: 0.55;
}

.building-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.building-icon { font-size: 1.3rem; }
.building-name { font-weight: 700; font-size: 0.95rem; flex: 1; }
.building-level-badge {
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--primary-dark);
  color: var(--primary-text);
  padding: 2px 7px;
  border-radius: 20px;
}

.building-level { font-size: 0.85rem; color: var(--text-muted); font-style: italic; }
.building-desc { font-size: 0.82rem; color: var(--text-dim); line-height: 1.4; }

/* Goal panel */
.goal-panel { }

.next-goal-text {
  font-size: 0.9rem;
  color: var(--primary-text);
  line-height: 1.5;
  padding: 10px 14px;
  background: var(--surface-raised);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
}

/* Achievements */
.achievements-panel { }

.achievements-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.achievement-item.unlocked {
  border-color: rgba(200,147,42,0.4);
  background: linear-gradient(135deg, var(--surface-raised) 0%, rgba(200,147,42,0.08) 100%);
}

.achievement-item.locked { opacity: 0.5; }

.ach-icon { font-size: 1.1rem; }
.ach-text { display: flex; flex-direction: column; gap: 1px; }
.ach-text strong { font-size: 0.85rem; }
.ach-text small  { font-size: 0.75rem; color: var(--text-muted); }

/* Activity log */
.log-panel { }

.activity-log-entries {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-height: 200px;
  overflow-y: auto;
}

.log-entry {
  font-size: 0.82rem;
  color: var(--text-dim);
  padding: 5px 10px;
  border-left: 2px solid var(--border);
  background: var(--surface-raised);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.4;
}

.log-entry:first-child {
  border-left-color: var(--primary);
  color: var(--text);
}

/* Village footer */
.village-footer {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.footer-inner {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.controls-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* ═══════════════════════════════════════════════════
   Buttons
════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  transition: transform 0.15s, background 0.15s, box-shadow 0.15s, border-color 0.15s, filter 0.15s;
  user-select: none;
  white-space: nowrap;
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  border-color: var(--border-strong);
  filter: brightness(1.12);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  filter: brightness(0.95);
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-color: var(--primary-dark);
  color: #1a0e00;
  box-shadow: 0 2px 12px var(--primary-glow);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 6px 24px var(--primary-glow);
}

.btn-large {
  padding: 14px 28px;
  font-size: 1rem;
  flex: 1;
}

.btn-danger {
  background: linear-gradient(160deg, #7a2c2c 0%, #4d1414 100%);
  border-color: #5a1a1a;
  color: #ffaaaa;
}

.btn-return {
  background: linear-gradient(160deg, var(--surface-high) 0%, var(--surface) 100%);
  border-color: var(--border-strong);
  font-size: 0.95rem;
  padding: 12px 24px;
}

.upgrade-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.15s;
  margin-top: auto;
}

.upgrade-btn.can-afford {
  border-color: rgba(200, 147, 42, 0.5);
  background: linear-gradient(135deg, rgba(200,147,42,0.12) 0%, var(--surface) 100%);
  color: var(--primary-text);
}

.upgrade-btn.can-afford:hover:not(:disabled) {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(200,147,42,0.22) 0%, var(--surface-raised) 100%);
  transform: translateY(-1px);
  box-shadow: 0 3px 12px var(--primary-glow);
}

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

.cost {
  font-size: 0.78rem;
  opacity: 0.85;
  letter-spacing: 0.5px;
}

.icon-btn {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1.2rem;
  transition: transform 0.15s, border-color 0.15s;
  color: var(--text);
  font-family: inherit;
}

.icon-btn:hover {
  transform: scale(1.1);
  border-color: var(--border-strong);
}

/* ═══════════════════════════════════════════════════
   Adventure Screen
════════════════════════════════════════════════════ */
#adventure-wrapper {
  position: fixed;
  inset: 0;
  background: #0a1a06;
  display: flex;
  align-items: center;
  justify-content: center;
}

#adventure-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  /* Canvas keeps its 800×600 logical size; CSS scales it to fit */
  width: min(100vw, calc(100vh * 800/600));
  height: min(100vh, calc(100vw * 600/800));
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#adventure-ui {
  position: fixed;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
}

.run-counter {
  background: rgba(10, 10, 6, 0.85);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  backdrop-filter: blur(6px);
  color: var(--text);
  letter-spacing: 0.5px;
  align-self: flex-end;
  pointer-events: none;
}

.cleared-message {
  background: rgba(10, 10, 6, 0.9);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-text);
  text-align: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px var(--primary-glow);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.4s, transform 0.4s;
  pointer-events: none;
  max-width: 420px;
}

.cleared-message.visible {
  opacity: 1;
  transform: translateY(0);
}

#return-btn {
  pointer-events: auto;
  margin-bottom: 8px;
}

.controls-overlay {
  font-size: 0.75rem;
  color: rgba(160, 152, 136, 0.7);
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════
   Toast Notifications
════════════════════════════════════════════════════ */
#ui-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
}

#toast-container {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 8px;
  width: min(400px, 90vw);
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-high);
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  font-weight: 500;
  width: 100%;
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.25s, transform 0.25s;
}

.toast.toast-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.toast-hiding {
  opacity: 0;
  transform: translateY(-8px);
}

.toast-success { border-color: rgba(39, 174, 96, 0.4); background: linear-gradient(135deg, var(--surface-high) 0%, rgba(39,174,96,0.1) 100%); }
.toast-warning { border-color: rgba(243, 156, 18, 0.4); background: linear-gradient(135deg, var(--surface-high) 0%, rgba(243,156,18,0.1) 100%); }
.toast-info    { border-color: rgba(52, 152, 219, 0.4);  background: linear-gradient(135deg, var(--surface-high) 0%, rgba(52,152,219,0.1) 100%);  }
.toast-error   { border-color: rgba(192, 57, 43, 0.4);   background: linear-gradient(135deg, var(--surface-high) 0%, rgba(192,57,43,0.1) 100%);   }

.toast-icon { font-size: 1.1rem; flex-shrink: 0; }
.toast-msg  { flex: 1; line-height: 1.4; }

/* ═══════════════════════════════════════════════════
   Achievement Popups
════════════════════════════════════════════════════ */
#achievement-container {
  position: absolute;
  top: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 320px;
}

.achievement-popup {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: linear-gradient(135deg, var(--surface-high) 0%, rgba(200,147,42,0.15) 100%);
  border: 1px solid rgba(200, 147, 42, 0.5);
  border-radius: var(--radius);
  box-shadow: 0 6px 28px rgba(200,147,42,0.2), var(--shadow);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.achievement-popup.achievement-visible {
  opacity: 1;
  transform: translateX(0);
}

.achievement-popup.achievement-hiding {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.4s, transform 0.4s;
}

.achievement-icon { font-size: 2rem; flex-shrink: 0; }

.achievement-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--primary-text);
  margin-bottom: 2px;
}

.achievement-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.achievement-desc {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════
   Animations
════════════════════════════════════════════════════ */
@keyframes pulse-upgrade {
  0%   { box-shadow: 0 0 0 0 var(--primary-glow); }
  50%  { box-shadow: 0 0 0 10px rgba(200,147,42,0); border-color: var(--primary); }
  100% { box-shadow: 0 0 0 0 rgba(200,147,42,0); }
}

.building-card.just-upgraded {
  animation: pulse-upgrade 0.7s ease-out;
}

@keyframes res-flash {
  0%   { filter: brightness(1); }
  40%  { filter: brightness(1.6); }
  100% { filter: brightness(1); }
}

.resource-value.res-flash {
  animation: res-flash 0.5s ease-out;
}

/* ═══════════════════════════════════════════════════
   Scrollbar
════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ═══════════════════════════════════════════════════
   Responsive — single column at 680px
════════════════════════════════════════════════════ */
@media (max-width: 680px) {
  .village-grid {
    grid-template-columns: 1fr;
  }

  .buildings-grid {
    grid-template-columns: 1fr;
  }

  .resource-row {
    flex-direction: column;
  }

  .game-title { font-size: 1.2rem; }
  .title-icon { font-size: 2rem; }

  .footer-inner { flex-direction: column; }
  .btn-large { width: 100%; }
}