:root {
  --bg-dark: #090a0d;
  --bg-card: rgba(16, 18, 24, 0.88);
  --gold-main: #c9a45c;
  --gold-bright: #f2d28b;
  --gold-dim: rgba(201, 164, 92, 0.25);
  --crimson: #8f1d21;
  --steel: #9ba3b0;
  --text-light: #e6e8ec;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-light);
  font-family: 'Inter', sans-serif;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

/* ==================== МЕНЮ ==================== */
.menu-page {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: radial-gradient(circle at 50% 35%, #1c2029 0%, #07080a 75%);
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(201, 164, 92, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 164, 92, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(600px) rotateX(45deg) scale(1.8);
  transform-origin: center bottom;
  pointer-events: none;
  opacity: 0.7;
}

.bg-glow {
  position: absolute;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(201, 164, 92, 0.14) 0%, transparent 70%);
  filter: blur(45px);
  pointer-events: none;
  animation: pulseGlow 6s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.12); opacity: 1; }
}

.vignette {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 180px rgba(0, 0, 0, 0.95);
  pointer-events: none;
}

.menu-wrapper {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: 50px 60px;
  background: var(--bg-card);
  border: 1px solid var(--gold-dim);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.85), inset 0 0 30px rgba(201, 164, 92, 0.05);
  backdrop-filter: blur(12px);
  max-width: 640px;
  width: 92%;
}

.menu-wrapper::before,
.menu-wrapper::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-main), transparent);
}
.menu-wrapper::before { top: 14px; }
.menu-wrapper::after { bottom: 14px; }

.emblem {
  font-size: 42px;
  color: var(--gold-main);
  text-shadow: 0 0 20px rgba(201, 164, 92, 0.5);
  margin-bottom: 8px;
}

.emblem.small {
  font-size: 32px;
}

.pre-title {
  font-size: 11px;
  letter-spacing: 5px;
  color: var(--steel);
  margin-bottom: 8px;
}

.main-title {
  font-family: 'Cinzel', serif;
  font-size: 44px;
  font-weight: 900;
  letter-spacing: 3px;
  background: linear-gradient(180deg, #ffffff 0%, var(--gold-bright) 55%, #8f6f32 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 6px 15px rgba(0, 0, 0, 0.8));
  margin-bottom: 12px;
}

.version-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--gold-bright);
  background: rgba(143, 29, 33, 0.35);
  border: 1px solid rgba(201, 164, 92, 0.35);
  padding: 5px 14px;
  margin-bottom: 36px;
}

.menu-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 15px 26px;
  font-family: 'Cinzel', serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(201, 164, 92, 0.3);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.menu-btn:hover {
  border-color: var(--gold-bright);
  background: rgba(201, 164, 92, 0.12);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6), 0 0 15px rgba(201, 164, 92, 0.2);
}

.menu-btn.primary {
  background: linear-gradient(135deg, #6e1519 0%, #3d0b0d 100%);
  border-color: var(--gold-main);
  color: var(--gold-bright);
}

.menu-btn.primary:hover {
  background: linear-gradient(135deg, #8f1d21 0%, #521013 100%);
  box-shadow: 0 10px 28px rgba(143, 29, 33, 0.45), 0 0 18px rgba(201, 164, 92, 0.3);
}

.btn-ornament {
  font-size: 14px;
  opacity: 0.8;
  transition: transform 0.25s ease;
}

.menu-btn:hover .btn-ornament {
  transform: scale(1.25);
}

.menu-footer {
  font-size: 11px;
  color: #5e6472;
  letter-spacing: 1.5px;
}

.menu-footer .dot {
  margin: 0 8px;
  color: var(--gold-main);
}

/* ==================== МОДАЛЬНЫЕ ОКНА ==================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s ease;
}

.hidden {
  display: none !important;
}

.modal-window {
  background: #111319;
  border: 1px solid var(--gold-main);
  width: 90%;
  max-width: 480px;
  padding: 28px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--gold-dim);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.modal-header h2 {
  font-family: 'Cinzel', serif;
  font-size: 20px;
  color: var(--gold-bright);
}

.close-btn {
  background: none;
  border: none;
  color: var(--steel);
  font-size: 20px;
  cursor: pointer;
}
.close-btn:hover { color: #fff; }

.key-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.key-badge {
  background: #1c202b;
  border: 1px solid var(--gold-dim);
  color: var(--gold-bright);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
}

.key-desc {
  font-size: 14px;
  color: var(--steel);
}

.setting-group {
  margin-bottom: 20px;
  text-align: left;
}

.setting-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--steel);
}

.setting-group strong {
  color: var(--gold-bright);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--gold-main);
  cursor: pointer;
}

.full-width {
  width: 100%;
  margin-top: 10px;
}

/* ==================== ИГРОВОЙ HUD ==================== */
#crosshair {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cross-dot {
  width: 4px;
  height: 4px;
  background: var(--gold-bright);
  border-radius: 50%;
  box-shadow: 0 0 6px #000;
}

.cross-ring {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(242, 210, 139, 0.45);
  border-radius: 50%;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.cross-ring.active-swing {
  transform: scale(1.45);
  border-color: rgba(255, 90, 90, 0.85);
}

.hud-top-left {
  position: fixed;
  top: 22px;
  left: 26px;
  z-index: 10;
  background: rgba(12, 14, 18, 0.72);
  border-left: 3px solid var(--gold-main);
  padding: 12px 18px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.hud-title {
  font-family: 'Cinzel', serif;
  font-size: 15px;
  font-weight: 800;
  color: var(--gold-bright);
  margin-bottom: 6px;
}

.hud-beta {
  font-size: 10px;
  background: var(--crimson);
  color: #fff;
  padding: 2px 6px;
  margin-left: 6px;
}

.hud-state {
  font-size: 12px;
  color: var(--steel);
  margin-top: 3px;
}

.hud-state span {
  color: #fff;
  font-weight: 600;
}

.hud-bottom {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 20px;
  background: rgba(10, 12, 16, 0.75);
  border: 1px solid var(--gold-dim);
  padding: 10px 24px;
  font-size: 12px;
  color: var(--steel);
  pointer-events: none;
}

.hud-bottom b {
  color: var(--gold-bright);
  margin-right: 4px;
}

.lock-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 7, 10, 0.82);
  backdrop-filter: blur(8px);
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lock-card {
  background: var(--bg-card);
  border: 1px solid var(--gold-main);
  padding: 40px 50px;
  text-align: center;
  max-width: 480px;
}

.lock-card h2 {
  font-family: 'Cinzel', serif;
  color: var(--gold-bright);
  margin: 10px 0 8px;
}

.lock-card p {
  font-size: 14px;
  color: var(--steel);
  margin-bottom: 26px;
}

.lock-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}/* Shared modes, responsive learning console and touch controls. */
:root{color-scheme:dark}body{font-family:Arial,sans-serif}button,a,input{touch-action:manipulation}button:focus-visible,a:focus-visible{outline:3px solid #8dcaff;outline-offset:3px}.arena-selector{height:auto;min-height:100dvh;overflow:auto;background:radial-gradient(circle at top,#3c3025,#10131a 65%);color:#eee}.arena-chooser{max-width:1000px;margin:auto;padding:70px 24px}.arena-chooser h1{font-size:clamp(32px,5vw,64px);color:#f2d28b}.eyebrow{font-size:13px;letter-spacing:.04em;color:#e0c594}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:36px 0}.mode-card{padding:28px;background:#151922;border:1px solid #80663e;border-radius:16px}.mode-card h2{font-size:26px}.mode-card p{line-height:1.6;color:#c5cbd5}.arena-button{display:inline-block;padding:13px 20px;background:#c9a45c;color:#111721;border:0;border-radius:8px;font-weight:700;text-decoration:none;cursor:pointer}.arena-chooser a:not(.arena-button),.lesson-panel a{color:#9bd0ff}.lesson-page{overflow-x:hidden;overflow-y:auto!important;height:auto;min-height:100dvh;background:#10131a}.lesson-page>canvas{position:fixed;left:0;top:0;z-index:0}.lesson-panel{position:relative;margin-left:auto;width:480px;min-height:100dvh;padding:24px;box-sizing:border-box;background:#111721;border-left:1px solid #75603f;color:#f2f3f5}.lesson-panel h1{font-size:30px;margin:16px 0 8px;color:#f2d28b}.lesson-panel h2{font-size:19px;color:#b9dafa}.lesson-panel nav{display:flex;flex-wrap:wrap;gap:12px;font-size:14px;line-height:1.5;margin-bottom:16px}.lesson-panel a[aria-current]{font-weight:bold;color:#f2d28b}.lesson-topic,.lesson-rule{font-size:14px;line-height:1.5;color:#b6c0ce}.lesson-status{padding:12px;background:#232a36;border-radius:8px;line-height:1.5;font-size:14px}.lesson-question{font-size:20px;line-height:1.5;overflow-wrap:anywhere}.lesson-answers{display:grid;gap:10px;margin-bottom:16px}.answer{width:100%;padding:14px;text-align:left;font-size:17px;line-height:1.4;background:#202b3b;border:1px solid #576a83;border-radius:9px;color:white;overflow-wrap:anywhere;cursor:pointer}.answer:disabled{cursor:default}.answer.right-answer{background:#174a39;border-color:#67d99f}.answer.removed-answer{opacity:.3}.lesson-feedback{padding:16px;margin:16px 0;line-height:1.6;border:1px solid #856d45;border-radius:9px;background:#27251f;overflow-wrap:anywhere}.lesson-panel>button:not(.arena-button){padding:10px 12px;background:#25334a;color:#ddeaff;border:1px solid #61718a;border-radius:8px;font-size:14px;cursor:pointer}.lesson-page #classic-pause{display:none}.classic-pause{position:fixed;right:16px;bottom:16px;z-index:18;border:1px solid #c9a45c;background:#151922;color:#f2d28b;border-radius:8px;padding:12px;cursor:pointer}.touch-controls{position:fixed;inset:auto 12px 16px;display:flex;justify-content:space-between;align-items:end;z-index:17;pointer-events:none}.touch-controls button{pointer-events:auto;touch-action:none;user-select:none;width:54px;min-height:48px;background:#151b26dd;color:white;border:1px solid #b5a17e;border-radius:10px;font-size:15px}.touch-moves{display:grid;grid-template-columns:repeat(3,54px);gap:5px}.touch-moves button:first-child{grid-column:2}.touch-moves button:nth-child(2){grid-column:1}.touch-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;max-width:185px}.classic-page canvas{touch-action:none}.fallback{padding:30px;color:white;background:#151922;min-height:100dvh}.fallback a{color:#9bd0ff}[hidden]{display:none!important}.lock-card{max-height:90dvh;overflow:auto;box-sizing:border-box}.quality-control{margin:15px 0}.quality-control select{padding:10px;background:#202938;color:#fff;border:1px solid #c9a45c;max-width:100%}
@media(max-width:899px){.lesson-page>canvas{width:100vw!important;height:36vh!important}.lesson-panel{width:100%;margin-top:36vh;border-left:0;border-top:1px solid #75603f;min-height:64dvh;padding:18px}.lesson-panel h1{font-size:26px}.mode-grid{grid-template-columns:1fr}.arena-chooser{padding:35px 18px}#classic-enemies{right:8px!important;top:92px!important;width:min(260px,calc(100vw - 16px))!important;padding:8px!important}.hud-top-left{top:10px!important;left:10px!important;font-size:11px!important}#classic-bars{width:min(340px,calc(100vw - 24px))!important;bottom:148px!important}.classic-pause{right:8px;top:12px;bottom:auto;max-width:110px}.lock-card{width:calc(100vw - 24px);padding:20px!important}.lock-card h2{font-size:23px}.lock-actions{flex-wrap:wrap}.menu-btn{white-space:normal}.touch-actions{max-width:130px}.touch-controls button{width:46px}.touch-moves{grid-template-columns:repeat(3,46px)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.settings-row{display:grid;gap:10px;margin:18px 0}.settings-row input{width:100%}.arena-chooser details{margin-bottom:24px}.arena-chooser summary{cursor:pointer;font-weight:bold;font-size:18px}