* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #2a3a1e;
  color: #e8e4d8;
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  user-select: none;
  -webkit-user-select: none;
}

/* ── MAIN MENU ── */
#main-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  background: #1a2810;
}

#menu-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(60,100,30,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(40,80,20,0.3) 0%, transparent 50%),
    linear-gradient(180deg, #0f1a08 0%, #1a2810 40%, #2a3a1e 100%);
  z-index: 0;
}

#menu-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 30px;
}

#menu-title {
  margin-bottom: 40px;
}

#menu-title .title-icon {
  font-size: 64px;
  display: block;
  margin-bottom: 10px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
}

#menu-title h1 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 52px;
  font-weight: 900;
  color: #c8b070;
  text-shadow: 0 2px 0 #6a5830, 0 4px 16px rgba(0,0,0,0.6);
  letter-spacing: 6px;
}

#menu-title .subtitle {
  font-size: 16px;
  color: #8a9a6a;
  letter-spacing: 8px;
  text-transform: uppercase;
  margin-top: 6px;
}

#menu-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.menu-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  font-weight: 900;
  padding: 14px 50px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: 3px;
  transition: all 0.2s;
  text-transform: uppercase;
}

.menu-btn.primary {
  background: linear-gradient(180deg, #6a8a3a 0%, #4a6a28 100%);
  color: #fff;
  box-shadow: 0 4px 0 #2a4018, 0 6px 20px rgba(0,0,0,0.4);
}
.menu-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #2a4018, 0 8px 28px rgba(0,0,0,0.5);
}
.menu-btn.primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #2a4018;
}

.menu-btn.secondary {
  background: linear-gradient(180deg, #5a5040 0%, #3a3428 100%);
  color: #c8b898;
  box-shadow: 0 4px 0 #2a2418, 0 6px 16px rgba(0,0,0,0.3);
  font-size: 14px;
  padding: 10px 36px;
}
.menu-btn.secondary:hover {
  transform: translateY(-2px);
  color: #e8d8b8;
}

#menu-stats {
  font-size: 13px;
  color: #6a7a5a;
  margin-top: 8px;
}

/* ── MAP SELECT ── */
#map-select {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  background: #1a2810;
}

#map-select-content {
  text-align: center;
  padding: 30px 20px;
  max-width: 700px;
  width: 100%;
}

#map-select-content h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 28px;
  font-weight: 900;
  color: #c8b070;
  letter-spacing: 4px;
  margin-bottom: 30px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

#map-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.map-card {
  width: 280px;
  background: #1e2a14;
  border: 3px solid #3a4a2a;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s;
}
.map-card:hover {
  border-color: #8aaa50;
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

.map-preview {
  width: 100%;
  height: 140px;
  background: #0e1a08;
  position: relative;
  overflow: hidden;
}

.map-card-info {
  padding: 14px;
  text-align: left;
}

.map-name {
  display: block;
  font-weight: 900;
  font-size: 18px;
  color: #c8b070;
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.map-desc {
  font-size: 12px;
  color: #7a8a6a;
  line-height: 1.4;
}

/* ── GAME ── */
#game-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 960px;
  padding: 4px;
}

#hud {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: linear-gradient(180deg, #2a3018 0%, #222a14 100%);
  border-bottom: 2px solid #4a5a2a;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  gap: 8px;
  flex-wrap: wrap;
}

#hud-left, #hud-center, #hud-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

#hud-center {
  flex-direction: row;
  align-items: center;
}

#gold-display {
  color: #ffd700;
  text-shadow: 0 0 6px rgba(255,215,0,0.3);
}

#lives-display {
  color: #ff6644;
  text-shadow: 0 0 6px rgba(255,100,60,0.3);
}

#score-display {
  color: #a8b898;
}

#wave-display {
  color: #d8d0b8;
}

#start-wave-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: 900;
  padding: 6px 18px;
  border: none;
  border-radius: 6px;
  background: linear-gradient(180deg, #6a8a3a 0%, #4a6a28 100%);
  color: #fff;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 2px 0 #2a4018, 0 4px 12px rgba(0,0,0,0.3);
  transition: all 0.2s;
  animation: pulse-green 2s ease-in-out infinite;
}

#start-wave-btn:hover {
  transform: scale(1.05);
}

#start-wave-btn:disabled {
  background: #3a3a2a;
  box-shadow: none;
  animation: none;
  cursor: default;
  color: #666;
}

#speed-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 10px;
  border: 1px solid #4a5a2a;
  border-radius: 4px;
  background: #2a3018;
  color: #a8b898;
  cursor: pointer;
  transition: all 0.15s;
}

#speed-btn:hover {
  background: #3a4028;
  border-color: #8aaa50;
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 2px 0 #2a4018, 0 4px 12px rgba(0,0,0,0.3); }
  50% { box-shadow: 0 2px 0 #2a4018, 0 4px 24px rgba(80,140,40,0.5); }
}

canvas#canvas {
  display: block;
  background: #3a5a20;
  border: 2px solid #4a5a2a;
  cursor: default;
}

#toolbar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px;
  background: linear-gradient(0deg, #2a3018 0%, #222a14 100%);
  border-top: 2px solid #4a5a2a;
  flex-wrap: wrap;
}

.toolbar-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 6px 12px;
  border: 1px solid #4a5a2a;
  border-radius: 5px;
  background: #2a3018;
  color: #a8b898;
  cursor: pointer;
  transition: all 0.15s;
}
.toolbar-btn:hover {
  background: #3a4028;
  border-color: #8aaa50;
  color: #d8d0b8;
}

.tower-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 2px solid #4a5a2a;
  border-radius: 8px;
  background: #222a14;
  cursor: pointer;
  transition: all 0.2s;
}

.tower-card:hover {
  border-color: #8aaa50;
  box-shadow: 0 0 10px rgba(100,140,50,0.25);
}

.tower-card.selected {
  border-color: #b0cc60;
  box-shadow: 0 0 18px rgba(160,200,80,0.35);
  transform: scale(1.03);
}

.tower-card.cant-afford {
  opacity: 0.5;
}

.sniper-card {
  border-color: #5a3a2a;
}

.sniper-card:hover {
  border-color: #cc6644;
  box-shadow: 0 0 10px rgba(200,100,60,0.25);
}

.sniper-card.selected {
  border-color: #ff8855;
  box-shadow: 0 0 18px rgba(255,120,60,0.35);
  transform: scale(1.03);
}

.sniper-name {
  color: #cc6644 !important;
}

.tower-icon-wrapper {
  width: 40px;
  height: 40px;
}

.tower-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.tower-name {
  font-weight: 900;
  font-size: 13px;
  color: #c8b070;
  letter-spacing: 1px;
}

.tower-cost {
  font-size: 12px;
  color: #ffd700;
}

.tower-stats {
  font-size: 10px;
  color: #7a8a6a;
}

/* ── ROTATE CONTROLS ── */
#rotate-section {
  display: flex;
  align-items: center;
  gap: 6px;
}

.rotate-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  font-weight: 900;
  width: 30px;
  height: 30px;
  border: 1px solid #5a4a2a;
  border-radius: 5px;
  background: linear-gradient(180deg, #4a3a20 0%, #3a2a18 100%);
  color: #ffcc66;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}

.rotate-btn:hover {
  background: #5a4a30;
  border-color: #cc8844;
  transform: scale(1.1);
}

.rotate-label {
  font-size: 18px;
  font-weight: 900;
  color: #ffcc66;
  width: 24px;
  text-align: center;
  text-shadow: 0 0 6px rgba(255,200,80,0.4);
}

#placement-actions {
  display: flex;
  gap: 8px;
}

#confirm-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 6px 16px;
  border: none;
  border-radius: 5px;
  background: linear-gradient(180deg, #5a7a30 0%, #4a6828 100%);
  color: #fff;
  cursor: pointer;
  transition: all 0.15s;
}

#confirm-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(80,120,40,0.4);
}

#cancel-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 6px 16px;
  border: 1px solid #5a4a3a;
  border-radius: 5px;
  background: #3a2a1a;
  color: #cc8866;
  cursor: pointer;
  transition: all 0.15s;
}

#cancel-btn:hover {
  background: #4a3020;
  border-color: #cc8866;
}

#tooltip {
  position: fixed;
  background: #222a14ee;
  border: 1px solid #5a6a3a;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 11px;
  color: #d8d0b8;
  pointer-events: none;
  z-index: 100;
  max-width: 200px;
  line-height: 1.4;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

#overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(10,16,6,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

#overlay-content {
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  padding: 30px 50px;
  background: #1e2a14;
  border: 2px solid #4a5a2a;
  border-radius: 12px;
  box-shadow: 0 0 60px rgba(40,60,20,0.3);
}

#overlay-content h1 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 14px;
}

#overlay-content p {
  font-size: 14px;
  color: #8a9a7a;
  margin-bottom: 8px;
}

#overlay-content button {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 30px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 16px;
  transition: all 0.2s;
}

.btn-restart {
  background: linear-gradient(180deg, #8a5030 0%, #6a3a20 100%);
  color: #fff;
}
.btn-restart:hover { transform: scale(1.06); box-shadow: 0 0 20px rgba(140,80,40,0.4); }

.btn-play {
  background: linear-gradient(180deg, #6a8a3a 0%, #4a6a28 100%);
  color: #fff;
}
.btn-play:hover { transform: scale(1.06); box-shadow: 0 0 20px rgba(80,140,40,0.4); }

.btn-menu {
  background: linear-gradient(180deg, #5a5040 0%, #3a3428 100%);
  color: #c8b898;
  margin-left: 10px;
}
.btn-menu:hover { transform: scale(1.06); }

#footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 8px;
  text-align: center;
  font-size: 12px;
  z-index: 10;
}

#footer a {
  color: #4a5a3a;
  text-decoration: none;
  transition: color 0.2s;
}

#footer a:hover {
  color: #8aaa50;
}

/* ── UPGRADE MENU ── */
#upgrade-menu {
  position: fixed;
  right: -360px;
  top: 50%;
  transform: translateY(-50%);
  width: 340px;
  max-height: 90vh;
  overflow-y: auto;
  background: linear-gradient(135deg, #3a3a38 0%, #2a2a28 40%, #222220 100%);
  border: 2px solid #5a5a50;
  border-right: none;
  border-radius: 12px 0 0 12px;
  box-shadow: -4px 0 30px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.05);
  z-index: 160;
  transition: right 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
  font-family: Arial, Helvetica, sans-serif;
  /* Metallic texture */
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.01) 2px, rgba(255,255,255,0.01) 4px),
    linear-gradient(135deg, #3a3a38 0%, #2a2a28 40%, #222220 100%);
}

#upgrade-menu.open {
  right: 0;
}

#upgrade-menu::-webkit-scrollbar {
  width: 6px;
}
#upgrade-menu::-webkit-scrollbar-track {
  background: #1a1a18;
}
#upgrade-menu::-webkit-scrollbar-thumb {
  background: #5a5a50;
  border-radius: 3px;
}

.um-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px 10px;
  border-bottom: 1px solid #4a4a42;
  background: linear-gradient(180deg, rgba(80,80,70,0.3) 0%, transparent 100%);
}

.um-title {
  font-size: 14px;
  font-weight: 900;
  color: #c8b870;
  letter-spacing: 2px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.um-close {
  background: none;
  border: 1px solid #5a5a50;
  border-radius: 4px;
  color: #999;
  font-size: 16px;
  cursor: pointer;
  padding: 2px 8px;
  transition: all 0.15s;
}
.um-close:hover {
  color: #ff6644;
  border-color: #ff6644;
  background: rgba(255,100,60,0.1);
}

.um-tower-info {
  padding: 8px 16px;
  font-size: 11px;
  color: #8a9a7a;
  border-bottom: 1px solid #3a3a34;
  background: rgba(0,0,0,0.15);
}

.um-paths {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.um-path {
  border: 1px solid #3a3a34;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0,0,0,0.1);
  transition: all 0.2s;
}

.um-path.active {
  border-color: #5a5a48;
  background: rgba(255,255,255,0.02);
}

.um-path.locked {
  opacity: 0.4;
  pointer-events: none;
}

.um-path-header {
  padding: 8px 12px;
  border-bottom: 2px solid #444;
  background: linear-gradient(180deg, rgba(60,60,55,0.5) 0%, transparent 100%);
  /* Metallic brushed look */
  background-image:
    repeating-linear-gradient(90deg, transparent, transparent 1px, rgba(255,255,255,0.02) 1px, rgba(255,255,255,0.02) 3px),
    linear-gradient(180deg, rgba(60,60,55,0.5) 0%, transparent 100%);
}

.um-path-name {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.um-upgrades {
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.um-upgrade {
  padding: 7px 10px;
  border-radius: 5px;
  border: 1px solid transparent;
  background: rgba(0,0,0,0.15);
  transition: all 0.15s;
}

.um-upgrade.owned {
  border-color: rgba(120,160,60,0.3);
  background: rgba(80,120,40,0.1);
}

.um-upgrade.next {
  border-color: rgba(200,180,80,0.4);
  background: rgba(200,180,80,0.05);
}

.um-upgrade.locked {
  opacity: 0.5;
}

.um-upg-name {
  font-size: 12px;
  font-weight: 700;
  color: #d8d0b8;
  margin-bottom: 2px;
}

.um-upg-desc {
  font-size: 10px;
  color: #7a7a6a;
  line-height: 1.3;
  margin-bottom: 4px;
}

.um-upg-status {
  font-size: 10px;
  color: #6a6a5a;
}

.um-upg-status.owned {
  color: #6a9a3a;
  font-weight: 700;
}

.um-upg-status.locked {
  color: #5a5a4a;
}

.um-buy-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border: none;
  border-radius: 4px;
  background: linear-gradient(180deg, #6a7a3a 0%, #4a5a28 100%);
  color: #fff;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 0 2px 0 #2a3018, 0 3px 8px rgba(0,0,0,0.3);
  /* Metallic sheen */
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.1) 0%, transparent 50%, rgba(0,0,0,0.1) 100%),
    linear-gradient(180deg, #6a7a3a 0%, #4a5a28 100%);
}

.um-buy-btn:hover {
  transform: scale(1.04);
  box-shadow: 0 2px 0 #2a3018, 0 3px 14px rgba(80,100,40,0.4);
}

.um-buy-btn.cant-afford {
  background: #3a3a2a;
  color: #666;
  box-shadow: none;
  cursor: default;
}

.um-footer {
  padding: 10px 16px 14px;
  border-top: 1px solid #3a3a34;
  text-align: center;
}

.um-sell-btn {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 20px;
  border: 1px solid #6a4030;
  border-radius: 5px;
  background: linear-gradient(180deg, #5a3020 0%, #3a2018 100%);
  color: #ff9966;
  cursor: pointer;
  transition: all 0.15s;
  width: 100%;
  /* Metallic sheen */
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 50%, rgba(0,0,0,0.1) 100%),
    linear-gradient(180deg, #5a3020 0%, #3a2018 100%);
}

.um-sell-btn:hover {
  background: #6a3828;
  border-color: #cc6644;
  color: #ffbb88;
  transform: scale(1.02);
}

@media (max-width: 700px) {
  #upgrade-menu {
    width: 280px;
    right: -300px;
    max-height: 80vh;
    top: auto;
    bottom: 60px;
    transform: none;
  }
  #upgrade-menu.open {
    right: 0;
  }
}

/* Context menu for sell */
.context-menu {
  position: fixed;
  background: #222a14ee;
  border: 1px solid #5a6a3a;
  border-radius: 6px;
  padding: 4px;
  z-index: 150;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.context-menu button {
  display: block;
  width: 100%;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  padding: 6px 14px;
  background: none;
  border: none;
  color: #ffd700;
  cursor: pointer;
  text-align: left;
  border-radius: 4px;
}

.context-menu button:hover {
  background: #3a4a2a;
}

@media (max-width: 700px) {
  #hud {
    font-size: 11px;
    padding: 6px 8px;
    gap: 4px;
  }
  #start-wave-btn {
    font-size: 10px;
    padding: 4px 10px;
  }
  .tower-card {
    padding: 6px 10px;
  }
  .tower-name { font-size: 11px; }
  .tower-cost { font-size: 11px; }
  .tower-stats { font-size: 9px; }
  #menu-title h1 {
    font-size: 36px;
    letter-spacing: 4px;
  }
  .map-card {
    width: 240px;
  }
  .map-preview {
    height: 110px;
  }
}