:root {
  --bg-deep-sea: #050b14;
  --deepseek-blue: #1c64f2;
  --deepseek-cyan: #00d8ff;
  --openai-green: #10a37f;
  --claude-orange: #d97706;
  --kimi-purple: #8b5cf6;
  --gemini-sparkle: #3b82f6;
  --qwen-gold: #f59e0b;
  --grok-silver: #e2e8f0;
  
  --hud-bg: rgba(6, 16, 33, 0.82);
  --hud-border: rgba(0, 216, 255, 0.28);
  --hud-glow: 0 0 16px rgba(0, 216, 255, 0.35);
  
  --font-cyber: 'Orbitron', -apple-system, sans-serif;
  --font-text: 'Noto Sans SC', sans-serif;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: fixed;
  background-color: var(--bg-deep-sea);
  font-family: var(--font-text);
  color: #fff;
}

#game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: radial-gradient(circle at 50% 40%, #0d2140 0%, #061122 60%, #03070d 100%);
}

canvas#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
  touch-action: none;
}

/* ================= HUD Overlay ================= */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: max(12px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  transition: opacity 0.3s ease;
}

.hidden {
  display: none !important;
}

/* --- HUD Top Bar --- */
.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  pointer-events: auto;
  width: 100%;
}

.hud-card {
  background: var(--hud-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--hud-border);
  border-radius: 14px;
  padding: 8px 14px;
  box-shadow: var(--hud-glow), inset 0 0 10px rgba(0, 216, 255, 0.08);
  display: flex;
  align-items: center;
}

/* Player Info Card */
.player-info {
  gap: 12px;
  flex-shrink: 0;
}

.avatar-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.whale-icon {
  font-size: 24px;
  filter: drop-shadow(0 0 8px #00d8ff);
  animation: floatWhale 2s ease-in-out infinite alternate;
}

@keyframes floatWhale {
  from { transform: translateY(0); }
  to { transform: translateY(-2px); }
}

.level-indicator {
  font-size: 10px;
  font-weight: 800;
  color: #000;
  background: linear-gradient(135deg, #00f0ff, #38bdf8);
  padding: 2px 6px;
  border-radius: 12px;
  font-family: var(--font-cyber);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.info-metrics {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 130px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}

.metric-label {
  color: #94a3b8;
  font-weight: 600;
}

.metric-val.highlight {
  font-family: var(--font-cyber);
  color: #38bdf8;
  font-weight: 700;
  font-size: 14px;
  text-shadow: 0 0 6px rgba(56, 189, 248, 0.8);
}

.exp-bar-wrap {
  position: relative;
  width: 100%;
  height: 8px;
  background: rgba(15, 23, 42, 0.8);
  border-radius: 8px;
  border: 1px solid rgba(56, 189, 248, 0.4);
  overflow: hidden;
}

.exp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #1d4ed8, #00d8ff, #a855f7);
  box-shadow: 0 0 8px #00d8ff;
  transition: width 0.2s ease-out;
}

.exp-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 8px;
  font-family: var(--font-cyber);
  color: #fff;
  font-weight: 700;
  text-shadow: 0 1px 2px #000;
  pointer-events: none;
  white-space: nowrap;
}

/* Center Metrics */
.center-metrics {
  gap: 20px;
  flex-shrink: 1;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}

.m-label {
  font-size: 9px;
  font-family: var(--font-cyber);
  color: #64748b;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.m-val {
  font-family: var(--font-cyber);
  font-size: 17px;
  font-weight: 800;
  color: #f8fafc;
  white-space: nowrap;
}

.combo-text {
  color: #fbbf24;
  text-shadow: 0 0 10px rgba(251, 191, 36, 0.8);
  animation: pulseScale 1s ease-in-out infinite alternate;
}

@keyframes pulseScale {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

/* Top Actions */
.top-actions {
  gap: 8px;
  padding: 6px 10px;
  flex-shrink: 0;
}

.icon-btn {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(0, 216, 255, 0.3);
  color: #fff;
  font-size: 15px;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  background: rgba(0, 216, 255, 0.2);
  border-color: #00d8ff;
  box-shadow: 0 0 10px rgba(0, 216, 255, 0.5);
}

/* --- HUD Bottom Left: Energy & Skills (Desktop) --- */
.hud-bottom-left {
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: auto;
  max-width: 360px;
}

.gauge-container {
  background: var(--hud-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--hud-border);
  border-radius: 12px;
  padding: 8px 14px;
  box-shadow: var(--hud-glow);
}

.gauge-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  font-family: var(--font-cyber);
  color: #38bdf8;
  margin-bottom: 6px;
  font-weight: 700;
}

.gauge-bar {
  width: 100%;
  height: 8px;
  background: rgba(15, 23, 42, 0.8);
  border-radius: 6px;
  border: 1px solid rgba(0, 216, 255, 0.3);
  overflow: hidden;
}

.gauge-fill {
  height: 100%;
  background: linear-gradient(90deg, #0284c7, #00f0ff);
  box-shadow: 0 0 8px #00f0ff;
  transition: width 0.1s linear;
}

/* Desktop Skills Bar */
.skills-bar {
  display: flex;
  gap: 10px;
}

.skill-slot {
  position: relative;
  width: 68px;
  height: 68px;
  background: var(--hud-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--hud-border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--hud-glow);
  transition: all 0.2s ease;
  overflow: hidden;
}

.skill-slot:hover {
  transform: translateY(-2px);
  border-color: #00f0ff;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.6);
}

.skill-slot:active {
  transform: scale(0.95);
}

.skill-icon {
  font-size: 22px;
}

.skill-key {
  position: absolute;
  top: 4px;
  right: 5px;
  font-family: var(--font-cyber);
  font-size: 8px;
  color: #67e8f9;
  background: rgba(0, 0, 0, 0.6);
  padding: 1px 4px;
  border-radius: 4px;
}

.skill-name {
  font-size: 9px;
  color: #cbd5e1;
  font-weight: 600;
  margin-top: 2px;
}

.cooldown-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: rgba(0, 0, 0, 0.75);
  transition: height 0.1s linear;
  pointer-events: none;
}

/* --- HUD Radar Minimap --- */
.hud-radar-wrap {
  position: absolute;
  bottom: max(16px, env(safe-area-inset-bottom));
  right: max(16px, env(safe-area-inset-right));
  pointer-events: auto;
}

.minimap-wrapper {
  background: var(--hud-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--hud-border);
  border-radius: 14px;
  padding: 8px;
  box-shadow: var(--hud-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.minimap-header {
  font-family: var(--font-cyber);
  font-size: 9px;
  letter-spacing: 1.2px;
  color: #38bdf8;
  font-weight: 700;
}

#minimapCanvas {
  background: rgba(3, 10, 20, 0.85);
  border-radius: 50%;
  border: 1px solid rgba(0, 216, 255, 0.4);
  box-shadow: inset 0 0 10px rgba(0, 216, 255, 0.2);
}

.radar-legend {
  display: flex;
  gap: 6px;
  font-size: 8px;
}

.dot-legend.player { color: #00f0ff; }
.dot-legend.food { color: #10b981; }
.dot-legend.danger { color: #ef4444; }

/* ================= Mobile Touch Controls & Floating Joystick ================= */
.touch-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 15;
}

#touchMoveZone {
  position: absolute;
  top: 0;
  left: 0;
  width: 55%;
  height: 100%;
  pointer-events: auto;
  touch-action: none;
}

.touch-tip-hint {
  position: absolute;
  bottom: 24px;
  left: 24px;
  font-size: 11px;
  font-family: var(--font-cyber);
  color: rgba(0, 216, 255, 0.5);
  pointer-events: none;
  transition: opacity 0.5s ease;
}

/* Floating Dynamic Joystick */
#floatingJoystick {
  position: absolute;
  width: 120px;
  height: 120px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 25;
}

#joystickBase {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 116, 144, 0.35) 0%, rgba(15, 23, 42, 0.75) 100%);
  border: 2px solid rgba(0, 216, 255, 0.6);
  box-shadow: 0 0 20px rgba(0, 216, 255, 0.4), inset 0 0 12px rgba(0, 216, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

#joystickKnob {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: radial-gradient(circle, #00f0ff 0%, #0284c7 100%);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.9);
  border: 2px solid #ffffff;
  position: absolute;
  pointer-events: none;
  transition: transform 0.05s ease-out;
}

/* Mobile Skills Cluster */
.mobile-skills-cluster {
  position: absolute;
  bottom: max(20px, env(safe-area-inset-bottom));
  right: max(20px, env(safe-area-inset-right));
  display: none;
  flex-direction: column;
  gap: 14px;
  pointer-events: auto;
  z-index: 20;
}

.m-skill-wrap {
  position: relative;
}

.m-skill-btn {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: rgba(13, 27, 49, 0.88);
  border: 2px solid #00d8ff;
  box-shadow: 0 0 16px rgba(0, 216, 255, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  touch-action: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.m-skill-btn:active {
  transform: scale(0.92);
  background: rgba(0, 216, 255, 0.25);
}

.m-skill-btn.dash-btn {
  width: 76px;
  height: 76px;
  border-color: #38bdf8;
  box-shadow: 0 0 22px rgba(56, 189, 248, 0.7);
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.8), rgba(15, 23, 42, 0.9));
}

.m-btn-icon {
  font-size: 24px;
}

.m-skill-btn.dash-btn .m-btn-icon {
  font-size: 28px;
}

.m-btn-label {
  font-size: 9px;
  font-weight: 700;
  color: #e0f2fe;
  font-family: var(--font-cyber);
  letter-spacing: 0.5px;
}

.m-cd-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: rgba(0, 0, 0, 0.75);
  pointer-events: none;
}

.m-btn-stam-bar {
  position: absolute;
  bottom: 4px;
  left: 12px;
  right: 12px;
  height: 4px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 4px;
  overflow: hidden;
}

.m-btn-stam-bar div {
  height: 100%;
  background: #00f0ff;
}

/* ================= Modal Overlays ================= */
.overlay-modal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-card {
  background: linear-gradient(145deg, rgba(13, 27, 49, 0.96), rgba(7, 15, 29, 0.96));
  border: 1.5px solid rgba(0, 216, 255, 0.4);
  border-radius: 20px;
  box-shadow: 0 0 40px rgba(0, 216, 255, 0.25), inset 0 0 20px rgba(0, 216, 255, 0.1);
  padding: 24px 28px;
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  max-height: 90dvh;
  overflow-y: auto;
  animation: modalPop 0.35s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

@keyframes modalPop {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.title-wrap {
  text-align: center;
  margin-bottom: 16px;
}

.ai-badge-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 5px;
  margin-bottom: 10px;
}

.model-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.model-tag.deepseek { background: rgba(28, 100, 242, 0.3); border-color: #38bdf8; color: #38bdf8; }
.model-tag.chatgpt { background: rgba(16, 163, 127, 0.3); border-color: #10a37f; color: #34d399; }
.model-tag.claude { background: rgba(217, 119, 6, 0.3); border-color: #d97706; color: #fbbf24; }
.model-tag.kimi { background: rgba(139, 92, 246, 0.3); border-color: #8b5cf6; color: #c084fc; }
.model-tag.gemini { background: rgba(59, 130, 246, 0.3); border-color: #3b82f6; color: #93c5fd; }
.model-tag.qwen { background: rgba(245, 158, 11, 0.3); border-color: #f59e0b; color: #fcd34d; }
.model-tag.grok { background: rgba(255, 255, 255, 0.2); border-color: #fff; color: #fff; }

.vs-tag {
  font-family: var(--font-cyber);
  font-size: 10px;
  font-weight: 900;
  color: #ec4899;
  display: flex;
  align-items: center;
}

.main-title {
  font-family: var(--font-cyber);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, #00f0ff, #3b82f6, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 13px;
  color: #94a3b8;
}

/* Intro Box */
.intro-box {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(0, 216, 255, 0.2);
  border-radius: 14px;
  padding: 12px 16px;
  margin-bottom: 18px;
}

.intro-whale {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  flex-shrink: 0;
}

.whale-preview-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 216, 255, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  animation: glowPulse 2s infinite alternate;
}

@keyframes glowPulse {
  from { transform: scale(0.9); opacity: 0.5; }
  to { transform: scale(1.3); opacity: 0.9; }
}

.whale-emoji {
  font-size: 38px;
  z-index: 2;
}

.intro-desc p {
  font-size: 12px;
  color: #cbd5e1;
  line-height: 1.5;
  margin-bottom: 4px;
}
.intro-desc p:last-child {
  margin-bottom: 0;
}

.intro-desc strong {
  color: #38bdf8;
}

/* Controls Guide */
.controls-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.guide-col {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 10px 14px;
}

.col-title {
  font-family: var(--font-cyber);
  font-size: 11px;
  font-weight: 700;
  color: #67e8f9;
  margin-bottom: 6px;
}

.guide-col ul {
  list-style: none;
  font-size: 11px;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guide-col li strong {
  color: #e2e8f0;
}

/* Action Buttons */
.btn-action-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.glow-btn {
  width: 100%;
  padding: 12px 20px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-family: var(--font-cyber);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.start-btn {
  background: linear-gradient(135deg, #0284c7, #00d8ff);
  color: #030712;
  box-shadow: 0 0 25px rgba(0, 216, 255, 0.6);
}

.start-btn:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #00d8ff, #38bdf8);
}

.btn-sub {
  font-size: 9px;
  opacity: 0.8;
  letter-spacing: 1.5px;
}

.primary-btn {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #fff;
}

.secondary-btn {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #cbd5e1;
}

.restart-btn {
  background: linear-gradient(135deg, #0284c7, #00d8ff);
  color: #020617;
  box-shadow: 0 0 20px rgba(0, 216, 255, 0.5);
}

/* Game Over Card */
.game-over-card {
  text-align: center;
}

.result-header {
  margin-bottom: 16px;
}

.result-icon {
  font-size: 40px;
  margin-bottom: 6px;
  display: inline-block;
}

.result-header h2 {
  font-family: var(--font-cyber);
  font-size: 20px;
  color: #f87171;
  margin-bottom: 4px;
}

.result-header.victory h2 {
  color: #4ade80;
}

.result-header p {
  font-size: 12px;
  color: #94a3b8;
}

.score-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 16px;
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.s-label {
  font-size: 10px;
  color: #64748b;
}

.s-val {
  font-family: var(--font-cyber);
  font-size: 16px;
  font-weight: 800;
  color: #f1f5f9;
}

.achievements-unlocked {
  margin-bottom: 18px;
  text-align: left;
}

.achieve-title {
  font-family: var(--font-cyber);
  font-size: 11px;
  font-weight: 700;
  color: #fbbf24;
  margin-bottom: 6px;
}

.achieve-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.achieve-badge {
  font-size: 10px;
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.4);
  color: #fde68a;
  padding: 3px 8px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 3px;
}

/* ================= Evolution Popup ================= */
.evolution-popup {
  position: absolute;
  top: 14%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, rgba(14, 116, 144, 0.95), rgba(15, 23, 42, 0.95));
  border: 2px solid #00f0ff;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.8);
  border-radius: 16px;
  padding: 16px 28px;
  z-index: 90;
  text-align: center;
  animation: evoSlideIn 0.5s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  max-width: 90vw;
}

@keyframes evoSlideIn {
  from { transform: translate(-50%, -30px) scale(0.85); opacity: 0; }
  to { transform: translate(-50%, 0) scale(1); opacity: 1; }
}

.evo-icon {
  font-size: 28px;
  margin-bottom: 2px;
}

.evo-title {
  font-family: var(--font-cyber);
  font-size: 12px;
  color: #67e8f9;
  letter-spacing: 1.5px;
  font-weight: 700;
}

.evo-stage {
  font-family: var(--font-cyber);
  font-size: 18px;
  font-weight: 900;
  color: #ffffff;
  margin: 3px 0 6px;
  text-shadow: 0 0 10px #00f0ff;
}

.evo-buff {
  font-size: 11px;
  color: #a5f3fc;
}

/* ================= Floating Banner / Combo Alerts ================= */
#floatingBannerContainer {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  max-width: 90vw;
}

.banner-item {
  background: rgba(3, 15, 30, 0.88);
  border: 1px solid #00f0ff;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.5);
  border-radius: 18px;
  padding: 5px 14px;
  font-family: var(--font-cyber);
  font-size: 11px;
  font-weight: 800;
  color: #38bdf8;
  animation: bannerFadeUp 2s forwards ease-out;
  text-align: center;
}

@keyframes bannerFadeUp {
  0% { transform: translateY(10px) scale(0.85); opacity: 0; }
  15% { transform: translateY(0) scale(1.05); opacity: 1; }
  25% { transform: translateY(0) scale(1); opacity: 1; }
  80% { transform: translateY(-10px); opacity: 1; }
  100% { transform: translateY(-25px); opacity: 0; }
}

/* ================= RESPONSIVE MEDIA QUERIES (MOBILE / TABLET) ================= */
@media (max-width: 900px), (pointer: coarse) {
  .desktop-only {
    display: none !important;
  }

  .mobile-skills-cluster {
    display: flex;
  }

  #hud {
    padding: max(8px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
  }

  /* Compact HUD Top */
  .hud-top {
    gap: 6px;
  }

  .hud-card {
    padding: 6px 10px;
    border-radius: 10px;
  }

  .player-info {
    gap: 8px;
  }

  .whale-icon {
    font-size: 20px;
  }

  .level-indicator {
    font-size: 8px;
    padding: 1px 5px;
  }

  .info-metrics {
    min-width: 90px;
    gap: 2px;
  }

  .metric-row {
    font-size: 10px;
  }

  .metric-val.highlight {
    font-size: 12px;
  }

  .center-metrics {
    gap: 10px;
    padding: 4px 8px;
  }

  .timer-item {
    display: none; /* Save space on small mobile */
  }

  .m-label {
    font-size: 7px;
  }

  .m-val {
    font-size: 13px;
  }

  .top-actions {
    gap: 6px;
    padding: 4px 6px;
  }

  .icon-btn {
    width: 28px;
    height: 28px;
    font-size: 13px;
    border-radius: 8px;
  }

  /* Compact Radar Minimap positioned at top-right below actions */
  .hud-radar-wrap {
    bottom: unset;
    top: max(56px, env(safe-area-inset-top));
    right: max(10px, env(safe-area-inset-right));
    transform: scale(0.78);
    transform-origin: top right;
  }

  .controls-guide {
    grid-template-columns: 1fr;
  }

  .main-title {
    font-size: 20px;
  }

  .modal-card {
    padding: 18px 20px;
  }
}

@media (max-height: 500px) {
  /* Ultra-compact landscape mobile */
  .hud-top {
    transform: scale(0.9);
    transform-origin: top left;
  }
  .hud-radar-wrap {
    display: none; /* Hide minimap on very short landscape phones to maximize viewport */
  }
  .modal-card {
    padding: 12px 18px;
  }
  .intro-box {
    margin-bottom: 10px;
    padding: 8px 12px;
  }
  .controls-guide {
    margin-bottom: 12px;
  }
}

/* ===== 新增：深海图鉴 + 新技能按钮 ===== */
.species-chip {
  min-width: 150px;
}
.species-hint {
  font-size: 10px;
  color: #94a3b8;
  margin-top: 3px;
  letter-spacing: 0.3px;
}
.m-skill-btn.frenzy-btn {
  border-color: #fb923c;
  box-shadow: 0 0 18px rgba(251, 146, 60, 0.65);
}
.m-skill-btn.frenzy-btn:active {
  background: rgba(251, 146, 60, 0.3);
}
.m-skill-btn.pulse-btn {
  border-color: #c084fc;
  box-shadow: 0 0 18px rgba(192, 132, 252, 0.65);
}
.m-skill-btn.pulse-btn:active {
  background: rgba(192, 132, 252, 0.3);
}
#speedDisplay {
  color: #38bdf8;
}
@media (max-width: 720px) {
  .species-chip {
    min-width: 120px;
  }
  .species-hint {
    display: none;
  }
}

/* ===== 横屏游玩提示 ===== */
.rotate-hint {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(2, 10, 22, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: auto;
}
.rotate-hint-card {
  text-align: center;
  padding: 22px 28px;
  border-radius: 16px;
  background: rgba(13, 27, 49, 0.92);
  border: 1px solid var(--hud-border);
  box-shadow: var(--hud-glow);
}
.rotate-phone {
  font-size: 40px;
  margin-bottom: 8px;
  animation: rotatePhone 1.6s ease-in-out infinite alternate;
}
@keyframes rotatePhone {
  from { transform: rotate(-20deg); }
  to { transform: rotate(20deg); }
}
.rotate-text {
  font-size: 14px;
  font-weight: 700;
  color: #e2f6ff;
  line-height: 1.8;
  margin-bottom: 14px;
}
.rotate-text span {
  color: #38bdf8;
  font-size: 12px;
}
.rotate-dismiss-btn {
  border: 1px solid var(--hud-border);
  background: rgba(56, 189, 248, 0.18);
  color: #bae6fd;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
}

/* ===== 横屏模式（手机横向，5 技能竖排压缩适配） ===== */
@media (orientation: landscape) and (max-height: 520px) {
  #hud {
    padding: max(6px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(6px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
  }
  .hud-top {
    gap: 6px;
    flex-wrap: wrap;
  }
  .hud-card {
    padding: 5px 9px;
    border-radius: 10px;
  }
  .whale-icon { font-size: 17px; }
  .metric-label { font-size: 8.5px; }
  .metric-val { font-size: 13px; }
  .exp-bar-wrap { width: 84px; }
  .species-hint { display: none; }
  .minimap-wrapper { transform: scale(0.7); transform-origin: bottom right; }
  /* 桌面技能槽压缩（5 个技能防溢出） */
  .hud-bottom-left { max-width: none; }
  .skills-bar { flex-wrap: wrap; gap: 6px; max-width: 320px; }
  .skill-slot { width: 50px; height: 50px; border-radius: 10px; }
  .skill-icon { font-size: 16px; }
  .skill-name { font-size: 7.5px; }
  .skill-key { font-size: 8.5px; }
  .gauge-container { padding: 5px 9px; }
  .gauge-label { font-size: 9px; }
  /* 移动端技能按钮压缩（5 个竖排） */
  .mobile-skills-cluster {
    right: max(6px, env(safe-area-inset-right));
    bottom: max(6px, env(safe-area-inset-bottom));
    gap: 5px;
  }
  .m-skill-btn { width: 44px; height: 44px; border-width: 1.5px; }
  .m-skill-btn.dash-btn { width: 50px; height: 50px; }
  .m-btn-icon { font-size: 16px; }
  .m-skill-btn.dash-btn .m-btn-icon { font-size: 20px; }
  .m-btn-label { font-size: 7px; }
  .touch-tip-hint { display: none; }
  /* 悬浮摇杆压缩 */
  #joystickBase { width: 70px; height: 70px; }
  #joystickKnob { width: 28px; height: 28px; }
  .start-card, .modal-card { max-height: 96vh; overflow-y: auto; }
}