/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  --bg-dark: #1a0f0a;
  --bg-panel: #1e1410;
  --bg-panel-alt: #251a14;
  --bg-row: #2a1e16;
  --bg-row-hover: #3a2a1f;
  --bg-row-affordable: #2f2218;
  --border: #4a3828;
  --border-light: #5a4838;
  --text: #e8d5c0;
  --text-dim: #a08060;
  --text-bright: #fff8f0;
  --gold: #f0c040;
  --gold-dim: #c09830;
  --cookie-brown: #c07020;
  --cookie-dark: #804010;
  --green: #60c040;
  --red: #e04040;
  --blue: #4080e0;
  --panel-width-left: 320px;
  --panel-width-right: 340px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
  -webkit-user-select: none;
}

/* ===== LAYOUT ===== */
#game-container {
  display: grid;
  grid-template-columns: var(--panel-width-left) 1fr var(--panel-width-right);
  height: 100vh;
  width: 100vw;
}

/* ===== LEFT PANEL: BUILDINGS ===== */
#buildings-panel {
  background: var(--bg-panel);
  border-right: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 10px 12px;
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.buy-mode-group {
  display: flex;
  gap: 4px;
}

.buy-mode-btn {
  background: var(--bg-row);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 3px 10px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}

.buy-mode-btn:hover {
  background: var(--bg-row-hover);
  color: var(--text);
}

.buy-mode-btn.active {
  background: var(--cookie-brown);
  color: var(--text-bright);
  border-color: var(--gold-dim);
}

#buildings-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Next achievement bubble */
#next-achievement {
  flex-shrink: 0;
  padding: 8px 10px;
  background: var(--bg-panel-alt);
  border-top: 1px solid var(--border);
}

#next-achievement:empty {
  display: none;
}

.next-ach-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 3px;
}

.next-ach-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.next-ach-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.3;
  margin-top: 1px;
}

.next-ach-desc b {
  color: var(--text);
}

.next-ach-bar {
  height: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  margin-top: 5px;
  overflow: hidden;
}

.next-ach-fill {
  height: 100%;
  background: var(--green);
  border-radius: 2px;
  transition: width 0.5s ease;
}

.next-ach-pct {
  font-size: 10px;
  color: var(--green);
  text-align: right;
  margin-top: 2px;
}

.building-row {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(74, 56, 40, 0.4);
  cursor: pointer;
  transition: background 0.15s;
  opacity: 0.45;
}

.building-row:hover {
  background: var(--bg-row-hover);
}

.building-row.affordable {
  opacity: 1;
  background: var(--bg-row-affordable);
}

.building-row.affordable:hover {
  background: var(--bg-row-hover);
}

.building-row.affordable:active {
  background: var(--cookie-dark);
  transform: scale(0.98);
}

.building-icon {
  font-size: 26px;
  width: 40px;
  text-align: center;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
}

.building-info {
  flex: 1;
  min-width: 0;
  margin-left: 8px;
}

.building-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-bright);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.building-cost {
  font-size: 12px;
  color: var(--gold);
  margin-top: 1px;
}

.building-row:not(.affordable) .building-cost {
  color: var(--red);
}

.building-count {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  min-width: 40px;
  text-align: right;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* ===== CENTER PANEL: COOKIE AREA ===== */
#cookie-area {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: radial-gradient(ellipse at center, #2a1810 0%, #1a0f0a 70%);
  overflow: hidden;
}

/* Ticker */
#ticker {
  width: 100%;
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  color: var(--text-dim);
  font-style: italic;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(74,56,40,0.3);
  min-height: 36px;
  transition: opacity 0.3s;
}

.ticker-fade {
  opacity: 0 !important;
}

/* Cookie display */
#cookie-display {
  text-align: center;
  padding: 20px 10px 5px;
  z-index: 2;
}

#cookie-count {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-bright);
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

#cookie-label {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 2px;
}

#cps-display {
  font-size: 15px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Big cookie */
#big-cookie-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

#big-cookie {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #d4943a, #a05010 50%, #703008 100%);
  box-shadow:
    0 0 40px rgba(192, 112, 32, 0.3),
    0 0 80px rgba(192, 112, 32, 0.1),
    inset 0 -8px 20px rgba(0,0,0,0.3),
    inset 0 8px 20px rgba(255,220,160,0.15);
  cursor: pointer;
  transition: transform 0.08s ease-out, box-shadow 0.15s;
  position: relative;
}

#big-cookie::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 20%;
  width: 60%;
  height: 55%;
  background: radial-gradient(ellipse, rgba(255,220,160,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

/* Cookie chip spots */
#big-cookie::after {
  content: '🍪';
  font-size: 140px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
}

#big-cookie:hover {
  box-shadow:
    0 0 50px rgba(192, 112, 32, 0.5),
    0 0 100px rgba(192, 112, 32, 0.2),
    inset 0 -8px 20px rgba(0,0,0,0.3),
    inset 0 8px 20px rgba(255,220,160,0.2);
  transform: scale(1.03);
}

#big-cookie:active,
#big-cookie.cookie-clicked {
  transform: scale(0.94);
  box-shadow:
    0 0 30px rgba(192, 112, 32, 0.4),
    0 0 60px rgba(192, 112, 32, 0.15),
    inset 0 -8px 20px rgba(0,0,0,0.4);
}

/* Buff bar */
#buff-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 12px;
  justify-content: center;
  min-height: 12px;
  z-index: 2;
}

.buff-indicator {
  background: linear-gradient(135deg, rgba(240,192,64,0.2), rgba(240,192,64,0.05));
  border: 1px solid var(--gold-dim);
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 11px;
  color: var(--gold);
  display: flex;
  gap: 6px;
  align-items: center;
}

.buff-time {
  font-weight: 700;
}

/* Particle canvas */
#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

/* Milk */
#milk {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg,
    rgba(255,255,255,0.0) 0%,
    rgba(255,255,255,0.6) 30%,
    rgba(255,255,255,0.85) 100%
  );
  transition: height 2s ease, opacity 2s ease;
  pointer-events: none;
  z-index: 1;
}

/* Golden cookie */
.golden-cookie {
  position: absolute;
  font-size: 48px;
  cursor: pointer;
  animation: golden-shimmer 0.8s ease-in-out infinite alternate;
  z-index: 10;
  filter: drop-shadow(0 0 12px rgba(255, 215, 0, 0.8)) drop-shadow(0 0 24px rgba(255, 215, 0, 0.4));
  transition: opacity 0.5s, transform 0.2s;
}

.golden-cookie:hover {
  transform: scale(1.2);
  filter: drop-shadow(0 0 16px rgba(255, 215, 0, 1)) drop-shadow(0 0 32px rgba(255, 215, 0, 0.6));
}

.golden-cookie-fade {
  opacity: 0;
  transform: scale(0.5);
}

@keyframes golden-shimmer {
  0% { transform: rotate(-5deg) scale(1); }
  100% { transform: rotate(5deg) scale(1.08); }
}

/* ===== RIGHT PANEL: STORE ===== */
#store-panel {
  background: var(--bg-panel);
  border-left: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Tabs */
.tabs {
  display: flex;
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 8px 4px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.03);
}

.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.tab-content {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

.tab-content.active {
  display: block;
}

/* Upgrades list */
#upgrades-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
}

.upgrade-row {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(74, 56, 40, 0.4);
  cursor: pointer;
  transition: background 0.15s;
  opacity: 0.45;
}

.upgrade-row:hover {
  background: var(--bg-row-hover);
}

.upgrade-row.affordable {
  opacity: 1;
  background: var(--bg-row-affordable);
}

.upgrade-row.affordable:hover {
  background: var(--bg-row-hover);
}

.upgrade-row.affordable:active {
  background: var(--cookie-dark);
  transform: scale(0.98);
}

.upgrade-row-icon {
  font-size: 26px;
  width: 36px;
  text-align: center;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
}

.upgrade-row-info {
  flex: 1;
  min-width: 0;
  margin-left: 8px;
}

.upgrade-row-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.upgrade-row-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.3;
  margin-top: 1px;
}

.upgrade-row-desc b {
  color: var(--text);
}

.upgrade-row-cost {
  font-size: 11px;
  color: var(--gold);
  margin-top: 2px;
}

.upgrade-row:not(.affordable) .upgrade-row-cost {
  color: var(--red);
}

.no-upgrades {
  color: var(--text-dim);
  text-align: center;
  padding: 20px;
  font-style: italic;
  font-size: 13px;
}

/* Stats */
.stat-group {
  margin-bottom: 16px;
}

.stat-group h3 {
  color: var(--gold);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}

.stat-row {
  font-size: 13px;
  padding: 2px 0;
  color: var(--text-dim);
}

.stat-row b {
  color: var(--text);
}

.prestige-gain {
  color: var(--gold) !important;
}

/* Options */
.options-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 0;
}

.btn-option {
  background: var(--bg-row);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  text-align: left;
  transition: all 0.15s;
}

.btn-option:hover {
  background: var(--bg-row-hover);
  border-color: var(--border-light);
}

.btn-option.btn-danger {
  border-color: rgba(224, 64, 64, 0.3);
}

.btn-option.btn-danger:hover {
  background: rgba(224, 64, 64, 0.15);
  border-color: rgba(224, 64, 64, 0.5);
}

/* Ascend button */
#ascend-btn {
  display: none;
  background: linear-gradient(135deg, #5a3a8a, #7a4aaa);
  border: 1px solid #9060c0;
  color: #f0e0ff;
  padding: 10px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  margin: 10px;
  transition: all 0.2s;
}

#ascend-btn:hover {
  background: linear-gradient(135deg, #7a4aaa, #9060c0);
  box-shadow: 0 0 16px rgba(150,96,192,0.3);
}

/* ===== ASCENSION SCREEN ===== */
#ascension-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 5, 20, 0.97);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

#ascension-screen.active {
  display: flex;
}

#heavenly-upgrades {
  width: 80%;
  max-width: 700px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 20px;
}

.ascension-header {
  text-align: center;
  margin-bottom: 20px;
}

.ascension-header h2 {
  color: var(--gold);
  font-size: 28px;
  margin-bottom: 8px;
}

.ascension-header p {
  color: var(--text-dim);
  font-size: 15px;
}

.ascension-header b {
  color: var(--gold);
}

.heavenly-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.heavenly-upgrade {
  background: linear-gradient(135deg, #2a1e40, #1a1030);
  border: 2px solid #5a3a8a;
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.heavenly-upgrade:hover {
  background: linear-gradient(135deg, #3a2e50, #2a1a40);
  border-color: #9060c0;
  transform: scale(1.03);
}

.heavenly-upgrade.owned {
  background: linear-gradient(135deg, #2a3a1a, #1a2a10);
  border-color: var(--green);
  opacity: 0.7;
  cursor: default;
}

.heavenly-upgrade.locked {
  opacity: 0.35;
  cursor: not-allowed;
}

.hu-icon {
  display: block;
  font-size: 28px;
  margin-bottom: 4px;
}

.hu-name {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}

.hu-cost {
  display: block;
  font-size: 11px;
  color: #b090d0;
}

.btn-reincarnate {
  display: block;
  margin: 0 auto;
  background: linear-gradient(135deg, #c09830, #e0b840);
  border: none;
  color: #1a0f0a;
  padding: 14px 40px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.btn-reincarnate:hover {
  background: linear-gradient(135deg, #e0b840, #f0d060);
  box-shadow: 0 0 20px rgba(240,192,64,0.3);
  transform: scale(1.05);
}

/* ===== NOTIFICATIONS ===== */
#notifications {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.notification {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 16px;
  max-width: 320px;
  transform: translateX(120%);
  transition: transform 0.3s ease-out, opacity 0.3s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.notification.notif-show {
  transform: translateX(0);
}

.notification.notif-hide {
  opacity: 0;
  transform: translateX(120%);
}

.notification-golden {
  border-color: var(--gold-dim);
  background: linear-gradient(135deg, #2a2010, #1a1508);
}

.notification-achievement {
  border-color: var(--green);
  background: linear-gradient(135deg, #1a2a10, #102008);
}

.notif-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-bright);
  margin-bottom: 2px;
}

.notification-golden .notif-title { color: var(--gold); }
.notification-achievement .notif-title { color: var(--green); }

.notif-text {
  font-size: 12px;
  color: var(--text-dim);
}

/* ===== TOOLTIP ===== */
#tooltip {
  position: fixed;
  z-index: 300;
  background: #1a1210;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 10px 14px;
  max-width: 300px;
  font-size: 13px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

#tooltip.tooltip-show {
  opacity: 1;
}

.tooltip-title {
  font-weight: 700;
  font-size: 15px;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.tooltip-desc {
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.4;
}

.tooltip-type {
  color: var(--gold-dim);
  font-size: 11px;
  margin-top: 2px;
}

#tooltip hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 6px 0;
}

#tooltip b {
  color: var(--text-bright);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  #game-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
  }

  #buildings-panel {
    border-right: none;
    border-bottom: 2px solid var(--border);
    max-height: 200px;
  }

  #buildings-list {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .building-row {
    flex-direction: column;
    min-width: 90px;
    padding: 6px;
    text-align: center;
    border-bottom: none;
    border-right: 1px solid rgba(74, 56, 40, 0.4);
  }

  .building-info { margin-left: 0; margin-top: 4px; }

  #store-panel {
    border-left: none;
    border-top: 2px solid var(--border);
    max-height: 280px;
  }

  #big-cookie {
    width: 160px;
    height: 160px;
  }

  #big-cookie::after {
    font-size: 100px;
  }
}