/* ==========================================================================
   GHOST-17 // TOUCH - Call of Duty Tactical UI Stylesheet
   ========================================================================== */

:root {
  --bg-primary: #070a0d;
  --bg-panel: #0d131a;
  --bg-panel-alt: #131b24;
  --border-color: rgba(84, 210, 66, 0.25);
  --border-bright: #54d242;
  --color-green: #54d242;
  --color-green-glow: rgba(84, 210, 66, 0.4);
  --color-amber: #f7a21b;
  --color-amber-glow: rgba(247, 162, 27, 0.35);
  --color-cyan: #00e5ff;
  --color-cyan-glow: rgba(0, 229, 255, 0.35);
  --color-red: #ff3344;
  --color-red-glow: rgba(255, 51, 68, 0.4);
  --text-primary: #e2ebf3;
  --text-secondary: #8fa0b2;
  --text-muted: #526374;

  --font-mono: 'Share Tech Mono', monospace, Consolas, sans-serif;
  --font-heading: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Rajdhani', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ---------------- HUD Grid Background & CRT Overlay ---------------- */
.grid-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(rgba(84, 210, 66, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(84, 210, 66, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 1;
}

.vignette-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, transparent 40%, rgba(2, 4, 6, 0.85) 95%);
  pointer-events: none;
  z-index: 2;
}

.crt-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  );
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 999;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.crt-overlay.disabled {
  opacity: 0;
}

/* ---------------- Floating Quick Controls ---------------- */
.quick-controls {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 10px;
  z-index: 100;
}

.hud-btn {
  background: rgba(13, 19, 26, 0.85);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 2px;
  backdrop-filter: blur(6px);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hud-btn:hover {
  border-color: var(--border-bright);
  background: rgba(84, 210, 66, 0.12);
  box-shadow: 0 0 12px var(--color-green-glow);
  transform: translateY(-1px);
}

.hud-btn strong {
  color: var(--color-green);
}

/* ---------------- Main Terminal Container ---------------- */
.terminal-wrapper {
  width: 100%;
  max-width: 1080px;
  padding: 32px 20px 48px;
  z-index: 10;
  position: relative;
}

/* ---------------- HUD Header ---------------- */
.hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 18px;
  margin-bottom: 24px;
  position: relative;
}

.hud-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--color-green);
  box-shadow: 0 0 10px var(--color-green);
}

.hud-meta-left {
  text-align: left;
}

.security-tag {
  color: var(--color-red);
  background: rgba(255, 51, 68, 0.12);
  border: 1px solid rgba(255, 51, 68, 0.35);
  padding: 3px 8px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 1.5px;
  display: inline-block;
  margin-bottom: 4px;
}

.hud-subtag {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
}

.hud-center-title {
  text-align: center;
}

.ghost-insignia {
  margin-bottom: 4px;
}

.ghost-skull-svg {
  width: 36px;
  height: 36px;
  color: #cad8e6;
  filter: drop-shadow(0 0 6px rgba(202, 216, 230, 0.5));
  animation: pulseGhost 4s infinite alternate ease-in-out;
}

@keyframes pulseGhost {
  0% { transform: scale(1); filter: drop-shadow(0 0 4px rgba(84, 210, 66, 0.3)); color: #cad8e6; }
  100% { transform: scale(1.05); filter: drop-shadow(0 0 10px rgba(84, 210, 66, 0.8)); color: #54d242; }
}

.main-title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 900;
  letter-spacing: 4px;
  color: #ffffff;
  text-shadow: 0 0 16px rgba(84, 210, 66, 0.5), 0 0 32px rgba(84, 210, 66, 0.2);
  margin: 2px 0 6px;
}

.telemetry-bar {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-green);
  display: flex;
  justify-content: center;
  gap: 8px;
  letter-spacing: 1px;
}

.hud-meta-right {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-green);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
  animation: blink 1.4s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.cipher-ref {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ---------------- Briefing Card ---------------- */
.briefing-container {
  margin-bottom: 24px;
}

.section-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-green);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-badge .bracket {
  color: var(--text-muted);
}

.briefing-terminal-box {
  background: linear-gradient(135deg, rgba(13, 19, 26, 0.95), rgba(19, 27, 36, 0.9));
  border: 1px solid rgba(84, 210, 66, 0.35);
  border-left: 4px solid var(--color-green);
  padding: 20px 24px;
  border-radius: 3px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6), 0 4px 20px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.quote-header {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-amber);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.terminal-text-block {
  font-size: 1.15rem;
}

.mission-text.lead-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 1px;
  color: #ffffff;
  margin-bottom: 8px;
}

.rule-text {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.tactile-highlight {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 700;
}

.rough-code {
  background: rgba(247, 162, 27, 0.15);
  color: var(--color-amber);
  border: 1px solid rgba(247, 162, 27, 0.35);
}

.smooth-code {
  background: rgba(0, 229, 255, 0.15);
  color: var(--color-cyan);
  border: 1px solid rgba(0, 229, 255, 0.35);
}

.sequence-banner {
  background: rgba(7, 10, 13, 0.7);
  border: 1px dashed rgba(84, 210, 66, 0.4);
  padding: 12px 18px;
  border-radius: 3px;
  margin: 14px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.seq-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
}

.seq-tokens {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 2px;
}

.seq-token {
  padding: 4px 12px;
  border-radius: 2px;
  text-shadow: 0 0 8px currentColor;
}

.rough-token {
  color: var(--color-amber);
  background: rgba(247, 162, 27, 0.12);
  border: 1px solid var(--color-amber);
}

.smooth-token {
  color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid var(--color-cyan);
}

.seq-divider {
  color: var(--text-muted);
  font-weight: 300;
}

.mission-text.footer-text {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-style: italic;
}

/* ---------------- Tactical Two-Column Grid ---------------- */
.tactical-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 840px) {
  .tactical-grid {
    grid-template-columns: 1fr;
  }
}

.tactical-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(84, 210, 66, 0.15);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.panel-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-green);
  border: 1px solid var(--border-color);
  padding: 1px 5px;
  border-radius: 2px;
}

.panel-header h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #ffffff;
  flex: 1;
  margin-left: 10px;
}

.panel-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-amber);
  background: rgba(247, 162, 27, 0.12);
  padding: 2px 6px;
  border-radius: 2px;
}

.panel-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ---------------- Sensory Grid (Left Panel) ---------------- */
.sensory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.sensor-cell {
  background: #090e13;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 14px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  outline: none;
}

.sensor-cell:hover {
  transform: translateY(-2px);
}

.sensor-cell.rough:hover {
  border-color: var(--color-amber);
  box-shadow: 0 0 16px var(--color-amber-glow);
}

.sensor-cell.smooth:hover {
  border-color: var(--color-cyan);
  box-shadow: 0 0 16px var(--color-cyan-glow);
}

.sensor-cell.activated {
  animation: cellPulse 0.35s ease;
}

@keyframes cellPulse {
  0% { transform: scale(0.96); }
  50% { transform: scale(1.04); }
  100% { transform: scale(1); }
}

.sensor-indicator {
  position: absolute;
  top: 6px;
  left: 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.texture-preview {
  width: 100%;
  height: 90px;
  border-radius: 2px;
  margin: 10px 0 8px;
  position: relative;
  overflow: hidden;
}

/* ROUGH TEXTURE (Carbon hazard mesh with grit) */
.texture-rough {
  background: #1c150c;
  border: 1px solid rgba(247, 162, 27, 0.3);
  background-image: 
    repeating-linear-gradient(45deg, rgba(247, 162, 27, 0.15) 0, rgba(247, 162, 27, 0.15) 4px, transparent 0, transparent 8px),
    repeating-linear-gradient(-45deg, rgba(0, 0, 0, 0.5) 0, rgba(0, 0, 0, 0.5) 4px, transparent 0, transparent 8px);
}

.rough-grit {
  width: 100%;
  height: 100%;
  background: radial-gradient(rgba(247, 162, 27, 0.3) 15%, transparent 16%);
  background-size: 6px 6px;
}

/* SMOOTH TEXTURE (Polished stealth glass with sheen) */
.texture-smooth {
  background: #091a24;
  border: 1px solid rgba(0, 229, 255, 0.3);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, rgba(0, 229, 255, 0.25) 50%, rgba(0, 229, 255, 0.05) 100%);
  box-shadow: inset 0 0 12px rgba(0, 229, 255, 0.15);
}

.smooth-sheen {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: sheenGlide 3.5s infinite;
}

@keyframes sheenGlide {
  0% { transform: translateX(-100%); }
  35%, 100% { transform: translateX(100%); }
}

.sensor-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 1.5px;
}

.sensor-cell.rough .sensor-name {
  color: var(--color-amber);
}

.sensor-cell.smooth .sensor-name {
  color: var(--color-cyan);
}

.sensor-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
  margin-top: 2px;
}

.cell-status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Tactile Inspector Console */
.tactile-inspector {
  margin-top: auto;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(84, 210, 66, 0.2);
  padding: 10px 12px;
  border-radius: 2px;
  font-family: var(--font-mono);
}

.inspector-label {
  font-size: 0.68rem;
  color: var(--color-green);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.inspector-output {
  font-size: 0.8rem;
  color: #d1dde8;
  min-height: 22px;
}

/* ---------------- Player Action Panel (Right Panel) ---------------- */
.player-display-box {
  background: #080c10;
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: 3px;
  margin-bottom: 16px;
  text-align: center;
}

.display-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}

.action-formula {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
}

.action-formula .slot {
  width: 44px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111720;
  border: 1px solid rgba(84, 210, 66, 0.3);
  border-radius: 2px;
  color: var(--color-green);
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.8);
  transition: all 0.2s ease;
}

.action-formula .slot.filled {
  border-color: var(--color-green);
  box-shadow: 0 0 10px var(--color-green-glow);
}

.action-formula .equals {
  color: var(--text-muted);
}

.action-formula .result-number {
  font-family: var(--font-heading);
  letter-spacing: 3px;
  color: #ffffff;
  padding: 0 6px;
  border-bottom: 2px solid var(--color-green);
  min-width: 90px;
}

/* Keypad Grid */
.keypad-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.key-btn {
  background: #0f1620;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 14px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  outline: none;
}

.key-btn:hover {
  transform: translateY(-2px);
}

.key-btn:active {
  transform: translateY(1px);
}

.key-btn .key-val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
}

.key-btn .key-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1px;
  margin-top: 2px;
}

.key-one {
  border-color: rgba(247, 162, 27, 0.4);
}
.key-one .key-val, .key-one .key-sub {
  color: var(--color-amber);
}
.key-one:hover {
  background: rgba(247, 162, 27, 0.15);
  box-shadow: 0 0 16px var(--color-amber-glow);
}

.key-zero {
  border-color: rgba(0, 229, 255, 0.4);
}
.key-zero .key-val, .key-zero .key-sub {
  color: var(--color-cyan);
}
.key-zero:hover {
  background: rgba(0, 229, 255, 0.15);
  box-shadow: 0 0 16px var(--color-cyan-glow);
}

/* Action Buttons Row */
.action-buttons-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.action-btn {
  background: #0c1218;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 10px 6px;
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 1px;
  font-weight: 700;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.action-btn:hover {
  transform: translateY(-1px);
}

.btn-auto:hover {
  border-color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.12);
  color: var(--color-cyan);
}

.btn-clear:hover {
  border-color: var(--color-red);
  background: rgba(255, 51, 68, 0.12);
  color: var(--color-red);
}

.btn-submit {
  border-color: var(--color-green);
  background: rgba(84, 210, 66, 0.15);
  color: var(--color-green);
}

.btn-submit:hover {
  background: var(--color-green);
  color: #070a0d;
  box-shadow: 0 0 16px var(--color-green-glow);
}

/* Verification Status Box */
.verification-box {
  background: #070a0d;
  border-left: 3px solid var(--color-amber);
  padding: 10px 14px;
  border-radius: 2px;
  font-family: var(--font-mono);
  margin-top: auto;
}

.verification-box.granted {
  border-left-color: var(--color-green);
  background: rgba(84, 210, 66, 0.08);
}

.verification-box.denied {
  border-left-color: var(--color-red);
  background: rgba(255, 51, 68, 0.08);
}

.verif-status {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-amber);
  margin-bottom: 2px;
}

.verification-box.granted .verif-status {
  color: var(--color-green);
}

.verification-box.denied .verif-status {
  color: var(--color-red);
}

.verif-detail {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ---------------- Classified Intel Modal / Banner ---------------- */
.intel-drop-section {
  display: none;
  margin-bottom: 24px;
  animation: slideDown 0.4s ease-out;
}

.intel-drop-section.active {
  display: block;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.intel-card {
  background: linear-gradient(135deg, #0f1a14, #122119);
  border: 2px solid var(--color-green);
  border-radius: 4px;
  padding: 24px;
  box-shadow: 0 0 30px rgba(84, 210, 66, 0.25);
  position: relative;
}

.intel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(84, 210, 66, 0.3);
  padding-bottom: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.intel-seal {
  background: var(--color-green);
  color: #070a0d;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 900;
  padding: 3px 8px;
  letter-spacing: 1.5px;
  border-radius: 2px;
}

.intel-header h2 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: #ffffff;
  letter-spacing: 2px;
  flex: 1;
  margin-left: 12px;
}

.intel-close {
  background: transparent;
  border: 1px solid rgba(84, 210, 66, 0.4);
  color: var(--color-green);
  width: 28px;
  height: 28px;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 2px;
  line-height: 1;
  transition: all 0.2s ease;
}

.intel-close:hover {
  background: var(--color-green);
  color: #070a0d;
}

.intel-body {
  font-size: 0.95rem;
}

.intel-field {
  margin-bottom: 10px;
  font-family: var(--font-mono);
}

.intel-field label {
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-right: 8px;
  letter-spacing: 1px;
}

.intel-field span {
  color: var(--color-green);
  font-weight: 700;
}

.intel-text-content {
  background: rgba(0, 0, 0, 0.45);
  border-left: 3px solid var(--color-green);
  padding: 14px 18px;
  border-radius: 2px;
  color: #e6edf4;
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1.6;
  margin-top: 6px;
}

.intel-text-content code {
  font-family: var(--font-mono);
  color: var(--color-amber);
  background: rgba(247, 162, 27, 0.15);
  padding: 2px 6px;
  border-radius: 2px;
}

.intel-cta-row {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hud-btn.primary {
  background: var(--color-green);
  color: #070a0d;
  font-weight: 900;
  border-color: var(--color-green);
}

.hud-btn.primary:hover {
  background: #6cf755;
  box-shadow: 0 0 16px var(--color-green);
}

.hud-btn.secondary {
  border-color: rgba(255, 255, 255, 0.25);
}

/* ---------------- HUD Footer ---------------- */
.hud-footer {
  border-top: 1px solid rgba(84, 210, 66, 0.15);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-level-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.levels-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.level-tab {
  background: #090e13;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 6px 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.level-tab:hover {
  border-color: var(--border-bright);
  color: var(--text-primary);
}

.level-tab.active {
  border-color: var(--color-green);
  background: rgba(84, 210, 66, 0.12);
  color: var(--color-green);
  font-weight: 700;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 1.5px;
}

/* ---------------- Responsive Adjustments ---------------- */
@media (max-width: 640px) {
  .hud-header {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .hud-meta-left, .hud-meta-right {
    text-align: center;
    align-items: center;
  }
  .action-formula {
    gap: 6px;
    font-size: 1.3rem;
  }
  .action-formula .slot {
    width: 34px;
    height: 38px;
  }
  .action-buttons-row {
    grid-template-columns: 1fr;
  }
}