:root {
  --ui-scale: 1.0;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #313338;
  font-family: 'Ubuntu', 'Segoe UI', sans-serif;
  color: #f2f3f5;
}

#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  z-index: 1;
}

#ui-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 10;
  pointer-events: none;
}

/* Toast Warning Banner */
.toast-banner {
  position: fixed;
  top: calc(70px * var(--ui-scale));
  left: 50%;
  transform: translateX(-50%);
  background: rgba(237, 66, 69, 0.95);
  border: 2px solid #ff3333;
  color: #fff;
  font-size: calc(11px * var(--ui-scale));
  font-weight: 900;
  letter-spacing: 1.5px;
  padding: calc(8px * var(--ui-scale)) calc(16px * var(--ui-scale));
  border-radius: 6px;
  z-index: 200;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from { transform: translate(-50%, -20px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

/* HUD Panels */
.hud-panel {
  background: rgba(43, 45, 49, 0.90);
  border: 2px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: calc(8px * var(--ui-scale)) calc(12px * var(--ui-scale));
  backdrop-filter: blur(6px);
  pointer-events: auto;
}

.hud-row {
  display: flex;
  gap: calc(8px * var(--ui-scale));
  font-size: calc(13px * var(--ui-scale));
  font-weight: 600;
  font-family: monospace;
}

.hud-label { color: #949ba4; }
.hud-val { color: #00e5ff; }

.center-top {
  position: fixed;
  top: calc(16px * var(--ui-scale));
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  min-width: calc(180px * var(--ui-scale));
}

.wave-title {
  font-size: calc(12px * var(--ui-scale));
  font-weight: 900;
  letter-spacing: 1.5px;
  color: #00e5ff;
}

.wave-timer {
  font-size: calc(13px * var(--ui-scale));
  font-weight: bold;
}

#diep-upgrade-panel {
  position: fixed;
  top: calc(16px * var(--ui-scale));
  left: calc(16px * var(--ui-scale));
  display: flex;
  flex-direction: column;
  gap: calc(8px * var(--ui-scale));
  pointer-events: auto;
}

.diep-panel-header {
  font-size: calc(11px * var(--ui-scale));
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #949ba4;
  text-transform: uppercase;
}

.diep-upgrade-grid {
  display: grid;
  grid-template-columns: repeat(2, calc(110px * var(--ui-scale)));
  gap: calc(8px * var(--ui-scale));
}

.diep-card {
  position: relative;
  height: calc(48px * var(--ui-scale));
  background: #1e1f22;
  border: calc(3px * var(--ui-scale)) solid #00e5ff;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: calc(4px * var(--ui-scale));
  transition: transform 0.1s ease, filter 0.15s ease;
  box-shadow: inset 0 -4px 0 rgba(0,0,0,0.3);
}

.diep-card:hover { transform: translateY(-2px); filter: brightness(1.2); }
.diep-card.active { border-color: #ffffff !important; }

.diep-card.locked-shop {
  background: #2b1d24;
  border-color: #ff3344 !important;
  opacity: 0.85;
}

.card-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  font-size: calc(8px * var(--ui-scale));
  font-weight: 900;
  padding: 2px 4px;
  border-radius: 3px;
  color: #fff;
}

.card-badge.shop { background: #ff3344; }

.diep-card-name {
  font-size: calc(11px * var(--ui-scale));
  font-weight: 800;
  text-align: center;
  color: #f2f3f5;
}

/* 8-Stat Upgrade Panel */
.bottom-left-panel {
  position: fixed;
  bottom: calc(16px * var(--ui-scale));
  left: calc(16px * var(--ui-scale));
  width: calc(260px * var(--ui-scale));
  display: flex;
  flex-direction: column;
  gap: calc(4px * var(--ui-scale));
  padding: calc(8px * var(--ui-scale)) calc(10px * var(--ui-scale));
}

.stat-badge {
  font-size: calc(10px * var(--ui-scale));
  font-weight: 900;
  color: #00e5ff;
  letter-spacing: 1px;
  margin-bottom: 2px;
  animation: flashAlert 0.5s infinite alternate;
}

.stat-list {
  display: flex;
  flex-direction: column;
  gap: calc(3px * var(--ui-scale));
}

.stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(6px * var(--ui-scale));
}

.stat-name {
  font-size: calc(10px * var(--ui-scale));
  font-weight: 800;
  width: calc(125px * var(--ui-scale));
  color: #dbdee1;
  white-space: nowrap;
}

.stat-bar-track {
  flex: 1;
  height: calc(9px * var(--ui-scale));
  background: #1e1f22;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}

.stat-bar-fill {
  height: 100%;
  width: 0%;
  transition: width 0.15s ease;
}

.stat-add-btn {
  width: calc(15px * var(--ui-scale));
  height: calc(15px * var(--ui-scale));
  background: #00e5ff;
  border: none;
  border-radius: 3px;
  color: #000;
  font-weight: bold;
  font-size: calc(11px * var(--ui-scale));
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-add-btn.disabled {
  background: #383a40;
  color: #6d6f78;
  cursor: default;
}

/* Bottom HUD */
#bottom-hud-wrapper {
  position: fixed;
  bottom: calc(16px * var(--ui-scale));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(6px * var(--ui-scale));
  pointer-events: auto;
}

.xp-bar-wrapper {
  position: relative;
  width: calc(260px * var(--ui-scale));
  height: calc(12px * var(--ui-scale));
  background: #1e1f22;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  overflow: hidden;
}

.xp-bar-fill {
  height: 100%;
  width: 0%;
  background: #ffea00;
  transition: width 0.1s ease;
}

.xp-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: calc(9px * var(--ui-scale));
  font-weight: 900;
  color: #fff;
  text-shadow: 0 1px 2px #000;
}

.player-hp-bar-wrapper {
  position: relative;
  width: calc(260px * var(--ui-scale));
  height: calc(16px * var(--ui-scale));
  background: #1e1f22;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  overflow: hidden;
}

.player-hp-fill {
  height: 100%;
  width: 100%;
  background: #00e5ff;
  transition: width 0.1s linear;
}

.player-hp-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: calc(10px * var(--ui-scale));
  font-weight: 900;
  color: #fff;
  text-shadow: 0 1px 2px #000;
}

.center-hud {
  min-width: calc(260px * var(--ui-scale));
  text-align: center;
}

.weapon-title {
  font-size: calc(11px * var(--ui-scale));
  font-weight: 800;
  letter-spacing: 1px;
  color: #949ba4;
  margin-bottom: calc(6px * var(--ui-scale));
}

.rack-container {
  display: flex;
  justify-content: center;
  gap: calc(8px * var(--ui-scale));
}

.shell-pip {
  width: calc(18px * var(--ui-scale));
  height: calc(28px * var(--ui-scale));
  background: #1e1f22;
  border: 2px solid #00e5ff;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.shell-pip.loaded {
  background: #00e5ff;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.shell-pip.reloading {
  background: rgba(0, 229, 255, 0.2);
  animation: pulseReload 0.6s infinite alternate;
}

@keyframes pulseReload {
  from { opacity: 0.3; }
  to { opacity: 0.9; }
}

.gauge-bar-wrapper {
  position: relative;
  width: 100%;
  height: calc(18px * var(--ui-scale));
  background: #1e1f22;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  overflow: hidden;
}

.gauge-bar-fill {
  height: 100%;
  width: 0%;
  background: #00e5ff;
  transition: width 0.05s linear;
}

.gauge-bar-fill.heat-high { background: #ff9900; }
.gauge-bar-fill.heat-critical { background: #ff3333; }
.gauge-bar-fill.energy { background: #ffff00; }

.gauge-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: calc(10px * var(--ui-scale));
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 1px 3px #000;
}

.overheat-banner {
  color: #ff3333;
  font-size: calc(11px * var(--ui-scale));
  font-weight: 900;
  letter-spacing: 1px;
  margin-top: 4px;
  animation: flashAlert 0.4s infinite alternate;
}

@keyframes flashAlert {
  from { opacity: 0.3; }
  to { opacity: 1; }
}

/* Modals & Main Menu */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(18, 19, 22, 0.88);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
}

.main-menu-box {
  background: #2b2d31;
  border: 3px solid #00e5ff;
  border-radius: 12px;
  padding: calc(36px * var(--ui-scale)) calc(40px * var(--ui-scale));
  text-align: center;
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.2);
  min-width: calc(360px * var(--ui-scale));
}

.main-menu-title {
  font-size: calc(28px * var(--ui-scale));
  font-weight: 900;
  letter-spacing: 3px;
  color: #00e5ff;
  text-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
}

.main-menu-sub {
  font-size: calc(12px * var(--ui-scale));
  font-weight: 800;
  letter-spacing: 2px;
  color: #949ba4;
  margin-top: 4px;
  margin-bottom: calc(28px * var(--ui-scale));
}

.main-menu-actions {
  display: flex;
  flex-direction: column;
  gap: calc(12px * var(--ui-scale));
}

.menu-btn {
  padding: calc(12px * var(--ui-scale));
  border-radius: 6px;
  border: none;
  font-weight: 800;
  font-size: calc(13px * var(--ui-scale));
  cursor: pointer;
  transition: all 0.15s ease;
}

.menu-btn.primary { background: #00e5ff; color: #000; }
.menu-btn.primary:hover { background: #33ebff; transform: scale(1.02); }

.menu-btn.secondary { background: #1e1f22; color: #fff; border: 1px solid rgba(255,255,255,0.15); }
.menu-btn.secondary:hover { background: #313338; transform: scale(1.02); }

.modal-box {
  background: #2b2d31;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  padding: calc(24px * var(--ui-scale));
  width: calc(380px * var(--ui-scale));
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.modal-box.wide {
  width: calc(520px * var(--ui-scale));
}

.modal-title {
  font-size: calc(20px * var(--ui-scale));
  font-weight: 900;
  color: #00e5ff;
  letter-spacing: 2px;
  margin-bottom: calc(12px * var(--ui-scale));
}

.modal-title.alert { color: #ff3333; }

.modal-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
  background: #1e1f22;
  padding: 12px;
  border-radius: 6px;
}

.stat-box {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: bold;
}

.stat-box .lbl { color: #949ba4; }
.stat-box .val { color: #fff; }
.stat-box .val.gold { color: #ffea00; }

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: calc(14px * var(--ui-scale));
  font-size: calc(12px * var(--ui-scale));
  font-weight: bold;
  color: #f2f3f5;
}

.setting-input {
  background: #1e1f22;
  color: #00e5ff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 10px;
  border-radius: 4px;
  font-weight: bold;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.admin-btn {
  background: #1e1f22;
  border: 1px solid #00e5ff;
  color: #00e5ff;
  padding: 8px;
  border-radius: 4px;
  font-size: calc(11px * var(--ui-scale));
  font-weight: bold;
  cursor: pointer;
}

.admin-btn.alert { border-color: #ff3333; color: #ff3333; }
.admin-btn:hover { background: #313338; }

.admin-checkbox-row {
  font-size: calc(11px * var(--ui-scale));
  font-weight: bold;
  color: #949ba4;
  text-align: left;
}

/* Embedded Debug Terminal inside Admin Panel */
.admin-log-title {
  font-size: calc(10px * var(--ui-scale));
  font-weight: 800;
  color: #949ba4;
  text-align: left;
  margin-top: 10px;
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.debug-log-console {
  width: 100%;
  height: calc(110px * var(--ui-scale));
  background: #1e1f22;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 8px;
  font-family: monospace;
  font-size: calc(10px * var(--ui-scale));
  overflow-y: auto;
  text-align: left;
  color: #dbdee1;
}

input[type="color"] {
  appearance: none;
  border: 2px solid #00e5ff;
  width: calc(32px * var(--ui-scale));
  height: calc(32px * var(--ui-scale));
  border-radius: 50%;
  cursor: pointer;
  background: transparent;
}

input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 50%; }

.armory-currency {
  font-size: calc(13px * var(--ui-scale));
  font-weight: bold;
  margin-bottom: calc(12px * var(--ui-scale));
  color: #f2f3f5;
}

.armory-currency .gold { color: #ffea00; }

.shop-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: calc(14px * var(--ui-scale));
}

.shop-tab-btn {
  flex: 1;
  padding: calc(8px * var(--ui-scale));
  background: #1e1f22;
  border: 1px solid rgba(255,255,255,0.15);
  color: #949ba4;
  font-weight: 800;
  font-size: calc(11px * var(--ui-scale));
  border-radius: 4px;
  cursor: pointer;
}

.shop-tab-btn.active {
  background: #00e5ff;
  color: #000;
  border-color: #00e5ff;
}

.shop-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: calc(260px * var(--ui-scale));
  overflow-y: auto;
  padding-right: 4px;
}

.shop-card {
  background: #1e1f22;
  border: 2px solid #00e5ff;
  border-radius: 6px;
  padding: calc(10px * var(--ui-scale)) calc(14px * var(--ui-scale));
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  color: #f2f3f5;
}

.shop-title { font-size: calc(12px * var(--ui-scale)); font-weight: 900; }
.shop-desc { font-size: calc(10px * var(--ui-scale)); color: #949ba4; margin-top: 2px; }

.shop-status.unlocked {
  font-size: calc(10px * var(--ui-scale));
  font-weight: 900;
  color: #85e364;
  letter-spacing: 1px;
}

.shop-buy-btn {
  background: #00e5ff;
  border: none;
  border-radius: 4px;
  padding: calc(6px * var(--ui-scale)) calc(12px * var(--ui-scale));
  font-weight: bold;
  font-size: calc(10px * var(--ui-scale));
  cursor: pointer;
  color: #000;
}

.shop-buy-btn.active-equip {
  background: #313338;
  color: #00e5ff;
  border: 1px solid #00e5ff;
}

.shop-buy-btn.disabled { background: #383a40; color: #6d6f78; cursor: default; }

.hidden { display: none !important; }

/* -------------------------------------------------------------
   DIEP LIGHT THEME COMPLETE UI OVERRIDES
   ------------------------------------------------------------- */
body.theme-light {
  background-color: #cdcdcd;
  color: #111214;
}

body.theme-light .hud-panel {
  background: rgba(242, 243, 245, 0.95);
  border-color: #c4c6d0;
  color: #111214;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

body.theme-light .hud-label { color: #5c5e66; }
body.theme-light .hud-val { color: #007acc; }

body.theme-light .wave-title { color: #007acc; }
body.theme-light .wave-timer { color: #111214; }

body.theme-light .diep-panel-header { color: #4e5058; }

body.theme-light .diep-card {
  background: #e3e5e8;
  border-color: #007acc;
  box-shadow: inset 0 -4px 0 rgba(0,0,0,0.1);
}

body.theme-light .diep-card-name { color: #2e3035; }

body.theme-light .diep-card.locked-shop {
  background: #f0d0d0;
  border-color: #e53935 !important;
}

body.theme-light .stat-name { color: #2e3035; }
body.theme-light .stat-bar-track { background: #dbdee1; border-color: #c4c6d0; }
body.theme-light .stat-add-btn.disabled { background: #cfd2d6; color: #888; }

body.theme-light .xp-bar-wrapper,
body.theme-light .player-hp-bar-wrapper,
body.theme-light .gauge-bar-wrapper,
body.theme-light .shell-pip {
  background: #e3e5e8;
  border-color: #c4c6d0;
}

body.theme-light .weapon-title { color: #5c5e66; }

body.theme-light .modal-overlay {
  background: rgba(242, 243, 245, 0.85);
}

body.theme-light .main-menu-box,
body.theme-light .modal-box {
  background: #f2f3f5;
  color: #111214;
  border-color: #007acc;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

body.theme-light .main-menu-title { color: #007acc; text-shadow: none; }
body.theme-light .main-menu-sub { color: #5c5e66; }

body.theme-light .menu-btn.secondary {
  background: #e3e5e8;
  color: #111214;
  border-color: #c4c6d0;
}

body.theme-light .menu-btn.secondary:hover { background: #d1d5d9; }

body.theme-light .modal-stats { background: #e3e5e8; }
body.theme-light .modal-stats .lbl { color: #5c5e66; }
body.theme-light .modal-stats .val { color: #111214; }
body.theme-light .modal-stats .val.gold { color: #d97706; }

body.theme-light .setting-row { color: #111214; }
body.theme-light .setting-input {
  background: #ffffff;
  color: #007acc;
  border-color: #c4c6d0;
}

body.theme-light .armory-currency { color: #111214; }

body.theme-light .shop-tab-btn {
  background: #e3e5e8;
  color: #5c5e66;
  border-color: #c4c6d0;
}

body.theme-light .shop-tab-btn.active {
  background: #007acc;
  color: #ffffff;
  border-color: #007acc;
}

body.theme-light .shop-card {
  background: #e3e5e8;
  border-color: #007acc;
  color: #111214;
}

body.theme-light .shop-desc { color: #5c5e66; }

body.theme-light .admin-btn {
  background: #e3e5e8;
  color: #007acc;
  border-color: #007acc;
}

body.theme-light .admin-btn:hover { background: #d1d5d9; }
body.theme-light .admin-checkbox-row { color: #2e3035; }

body.theme-light .admin-log-title { color: #5c5e66; }

body.theme-light .debug-log-console {
  background: #e3e5e8;
  border-color: #c4c6d0;
  color: #111214;
}