* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #04060d;
  --panel: rgba(10, 15, 28, 0.86);
  --line: rgba(120, 230, 255, 0.16);
  --text: #e8fbff;
  --dim: #8198ad;
  --cyan: #54f2ff;
  --magenta: #ff58c0;
  --gold: #ffd36e;
  --danger: #ff4060;
  --display: Orbitron, Inter, ui-sans-serif, system-ui, sans-serif;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}
html, body { height: 100%; overflow: hidden; background: var(--bg); color: var(--text); }
.app { position: relative; width: 100vw; height: 100vh; user-select: none; -webkit-user-select: none; }
#game { position: absolute; inset: 0; display: block; cursor: crosshair; touch-action: none; }
.vignette { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.55) 100%); }
.hidden { display: none !important; }
kbd { display: inline-block; min-width: 20px; padding: 1px 6px; border: 1px solid rgba(255,255,255,0.2); border-bottom-width: 2px; border-radius: 5px; font: 700 11px Inter, sans-serif; color: var(--text); }

/* ---------- HUD ---------- */
.hud { position: absolute; top: 0; left: 0; right: 0; display: grid; grid-template-columns: 1fr auto 1fr; align-items: start; gap: 12px; padding: 16px 20px; pointer-events: none; }
.hud-left, .hud-right { display: flex; align-items: flex-start; gap: 10px; }
.hud-right { justify-content: flex-end; }
.stat { position: relative; min-width: 84px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 12px; background: rgba(6, 10, 20, 0.6); backdrop-filter: blur(8px); }
.stat-label { display: block; font-size: 9.5px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--dim); }
.stat-label b { float: right; margin-left: 10px; color: var(--text); font-variant-numeric: tabular-nums; letter-spacing: 0.5px; }
.stat-value { display: block; margin-top: 2px; font: 800 21px Inter, ui-sans-serif, system-ui, sans-serif; font-variant-numeric: tabular-nums; text-shadow: 0 0 16px rgba(84, 242, 255, 0.45); }
.combo { position: absolute; left: 10px; top: calc(100% + 6px); white-space: nowrap; font: 800 12px var(--display); color: var(--gold); text-shadow: 0 0 12px rgba(255, 211, 110, 0.6); }
.hull-stat { min-width: 170px; }
.bar { width: 100%; height: 7px; margin-top: 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.1); overflow: hidden; }
.bar span { display: block; width: 100%; height: 100%; border-radius: 999px; transition: width 0.15s ease; }
.hull-bar span { background: linear-gradient(90deg, #54f2ff, #7dffb2); box-shadow: 0 0 12px rgba(84, 242, 255, 0.6); }
.hull-bar span.low { background: linear-gradient(90deg, #ff4060, #ffb347); animation: pulse 0.6s ease-in-out infinite alternate; }
.sub-row { display: flex; align-items: center; gap: 8px; margin-top: 7px; }
.pips { display: flex; gap: 4px; }
.pips i { width: 9px; height: 9px; transform: rotate(45deg); border: 1px solid rgba(159, 248, 255, 0.5); }
.pips i.on { background: #9ff8ff; box-shadow: 0 0 8px #9ff8ff; }
.dash-meter { flex: 1; height: 4px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.dash-meter span { display: block; height: 100%; background: rgba(255,255,255,0.45); }
.dash-meter.ready span { background: #ffffff; box-shadow: 0 0 8px #fff; }
.hud-center { text-align: center; min-width: 0; }
.boss-bar { width: min(460px, 42vw); padding-top: 4px; }
.boss-name { font: 800 11px var(--display); letter-spacing: 6px; color: #ff6d8a; text-shadow: 0 0 14px rgba(255, 61, 110, 0.8); }
.boss-bar .bar { height: 9px; border: 1px solid rgba(255, 61, 110, 0.4); }
.boss-bar .bar span { background: linear-gradient(90deg, #ff3d6e, #ffb347); box-shadow: 0 0 14px rgba(255, 61, 110, 0.8); }
.room-info { min-height: 16px; margin-top: 6px; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,0.45); }
.icon-button { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 12px; background: rgba(6, 10, 20, 0.6); color: var(--text); font-size: 13px; cursor: pointer; pointer-events: auto; transition: all 0.18s ease; }
.icon-button:hover { border-color: rgba(84, 242, 255, 0.55); color: var(--cyan); box-shadow: 0 0 22px rgba(84, 242, 255, 0.18); }
.icon-button.muted { color: var(--dim); }
.scoreboard { grid-column: 3; justify-self: end; list-style: none; min-width: 180px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 12px; background: rgba(6, 10, 20, 0.55); font-size: 12px; }
.scoreboard li { display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.scoreboard li i { width: 8px; height: 8px; border-radius: 50%; }
.scoreboard li span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.scoreboard li b { font-variant-numeric: tabular-nums; }
.scoreboard li.me span { color: var(--cyan); font-weight: 700; }
.scoreboard li.dead { opacity: 0.4; }
.inventory { position: absolute; left: 20px; bottom: 16px; display: flex; flex-wrap: wrap; gap: 6px; max-width: 40vw; pointer-events: none; }
.chip { display: inline-flex; align-items: center; gap: 5px; padding: 4px 9px; border: 1px solid var(--line); border-radius: 999px; background: rgba(6, 10, 20, 0.6); font-size: 13px; color: var(--cyan); }
.chip b { font: 800 10px var(--display); color: var(--text); }

/* ---------- Banner ---------- */
.banner { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%) scale(0.92); text-align: center; pointer-events: none; opacity: 0; transition: opacity 0.25s ease, transform 0.25s ease; }
.banner.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.banner-title { font: 900 clamp(28px, 5.5vw, 64px) var(--display); letter-spacing: 0.22em; color: #fff; text-shadow: 0 0 30px rgba(84, 242, 255, 0.8), 0 0 80px rgba(84, 242, 255, 0.4); white-space: nowrap; }
.banner-sub { margin-top: 8px; font-size: 13px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--cyan); }
.banner.danger .banner-title { color: #ffe3e8; text-shadow: 0 0 30px rgba(255, 64, 96, 0.9), 0 0 80px rgba(255, 64, 96, 0.5); animation: pulse 0.35s ease-in-out infinite alternate; }
.banner.danger .banner-sub { color: #ff8aa0; }
.banner.gold .banner-title { text-shadow: 0 0 30px rgba(255, 211, 110, 0.9), 0 0 80px rgba(255, 211, 110, 0.4); }
.banner.gold .banner-sub { color: var(--gold); }
@keyframes pulse { from { opacity: 1; } to { opacity: 0.55; } }

/* ---------- Upgrade dock ---------- */
.upgrade-dock { position: absolute; left: 50%; top: 96px; transform: translateX(-50%); width: min(860px, calc(100vw - 32px)); padding: 16px 18px 12px; border: 1px solid rgba(84, 242, 255, 0.3); border-radius: 20px; background: rgba(8, 12, 24, 0.88); backdrop-filter: blur(12px); box-shadow: 0 20px 80px rgba(0,0,0,0.6), 0 0 40px rgba(84, 242, 255, 0.08); animation: dock-in 0.3s cubic-bezier(.2,1.4,.4,1); }
@keyframes dock-in { from { transform: translate(-50%, -30px); opacity: 0; } }
.dock-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.dock-head h3 { font: 800 13px var(--display); letter-spacing: 3px; text-transform: uppercase; color: var(--gold); }
.dock-timer { font: 800 13px var(--display); color: var(--dim); }
.dock-hint { margin-top: 10px; text-align: center; font-size: 11px; color: var(--dim); }
.upgrade-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 12px; }
.upgrade-card { position: relative; padding: 16px 16px 14px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 16px; background: linear-gradient(160deg, rgba(84, 242, 255, 0.07), rgba(255, 88, 192, 0.04)); color: var(--text); text-align: left; cursor: pointer; transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease; font: inherit; }
.upgrade-card:hover, .upgrade-card:focus-visible { transform: translateY(-4px); border-color: rgba(84, 242, 255, 0.7); box-shadow: 0 12px 40px rgba(84, 242, 255, 0.15); outline: none; }
.upgrade-card.repair { background: linear-gradient(160deg, rgba(125, 255, 178, 0.1), rgba(255, 255, 255, 0.02)); }
.card-key { position: absolute; top: 10px; right: 12px; font: 800 11px var(--display); color: var(--dim); }
.upgrade-icon { font-size: 26px; line-height: 1; color: var(--cyan); text-shadow: 0 0 14px rgba(84, 242, 255, 0.7); }
.upgrade-card.repair .upgrade-icon { color: #7dffb2; }
.upgrade-card h4 { margin-top: 10px; font-size: 15px; font-weight: 800; }
.upgrade-card p { margin-top: 5px; min-height: 34px; color: var(--dim); font-size: 12.5px; line-height: 1.4; }
.level-pips { display: flex; gap: 4px; margin-top: 10px; }
.level-pips i { width: 16px; height: 4px; border-radius: 2px; background: rgba(255,255,255,0.12); }
.level-pips i.on { background: var(--cyan); }
.level-pips i.next { background: var(--gold); box-shadow: 0 0 8px var(--gold); animation: pulse 0.5s ease-in-out infinite alternate; }

/* ---------- Overlay panels ---------- */
.overlay { position: absolute; inset: 0; display: grid; place-items: center; padding: 16px; background: radial-gradient(ellipse at center, rgba(4, 7, 16, 0.55), rgba(2, 3, 8, 0.85)); backdrop-filter: blur(6px); }
.panel { width: min(760px, 100%); max-height: calc(100vh - 32px); overflow-y: auto; padding: 36px; border: 1px solid var(--line); border-radius: 24px; background: var(--panel); box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65), inset 0 1px 0 rgba(255,255,255,0.05); text-align: center; }
.logo { font: 900 clamp(34px, 7vw, 64px) var(--display); letter-spacing: 0.14em; line-height: 1; background: linear-gradient(100deg, #9ff8ff, #54f2ff 40%, #ff58c0); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 22px rgba(84, 242, 255, 0.35)); }
.logo span { display: block; margin-top: 6px; font-size: 0.42em; letter-spacing: 0.9em; padding-left: 0.9em; }
h2 { font: 900 clamp(26px, 5vw, 42px) var(--display); letter-spacing: 0.14em; text-transform: uppercase; text-shadow: 0 0 40px rgba(84, 242, 255, 0.4); }
.subtitle { max-width: 520px; margin: 14px auto 0; color: var(--dim); line-height: 1.5; }
.tip { max-width: 480px; margin: 22px auto 0; font-size: 12px; color: rgba(255,255,255,0.4); line-height: 1.5; }
.controls { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 24px; }
.controls div { padding: 12px 8px; border: 1px solid rgba(255, 255, 255, 0.07); border-radius: 12px; background: rgba(255, 255, 255, 0.03); }
.controls strong { display: block; font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); }
.controls span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--dim); }
.menu-buttons { display: grid; gap: 10px; max-width: 320px; margin: 28px auto 0; }
.primary-button { padding: 15px 28px; border: 0; border-radius: 999px; background: linear-gradient(100deg, var(--cyan), var(--magenta)); color: #020408; font: 800 14px Inter, sans-serif; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; transition: transform 0.18s ease, box-shadow 0.18s ease; box-shadow: 0 10px 45px rgba(84, 242, 255, 0.25); }
.primary-button:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 14px 65px rgba(255, 88, 192, 0.3); }
.secondary-button, .ghost-button { padding: 13px 24px; border: 1px solid rgba(84, 242, 255, 0.4); border-radius: 999px; background: rgba(84, 242, 255, 0.07); color: var(--text); font: 700 13px Inter, sans-serif; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; transition: all 0.18s ease; }
.secondary-button:hover, .ghost-button:hover { background: rgba(84, 242, 255, 0.16); box-shadow: 0 0 30px rgba(84, 242, 255, 0.18); }
.ghost-button { margin-top: 20px; border-color: rgba(255, 255, 255, 0.18); background: transparent; color: var(--dim); }
.lobby-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 520px; margin: 26px auto 0; }
.lobby-grid label { display: grid; gap: 8px; text-align: left; }
.lobby-grid span { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--dim); }
.lobby-grid input { width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: 12px; background: rgba(4, 8, 16, 0.7); color: var(--text); font-size: 16px; outline: none; }
.lobby-grid input:focus { border-color: rgba(84, 242, 255, 0.6); box-shadow: 0 0 24px rgba(84, 242, 255, 0.12); }
#roomCodeInput { text-transform: uppercase; letter-spacing: 0.3em; font-family: var(--display); }
.lobby-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-width: 520px; margin: 20px auto 0; }
.lobby-actions .primary-button { padding: 13px; font-size: 12px; }
.lobby-status { min-height: 22px; margin-top: 16px; color: var(--gold); }
.final-score { margin-top: 12px; font: 900 clamp(46px, 10vw, 84px) Inter, ui-sans-serif, system-ui, sans-serif; font-variant-numeric: tabular-nums; color: #fff5dc; text-shadow: 0 0 50px rgba(255, 211, 110, 0.45); }
.final-score small { display: block; margin-top: 4px; color: var(--dim); font: 600 12px Inter, sans-serif; letter-spacing: 4px; text-transform: uppercase; }
.new-best { display: inline-block; margin-top: 14px; padding: 5px 14px; border-radius: 999px; background: rgba(255, 211, 110, 0.14); border: 1px solid rgba(255, 211, 110, 0.5); color: var(--gold); font: 800 11px var(--display); letter-spacing: 3px; text-transform: uppercase; animation: pulse 0.6s ease-in-out infinite alternate; }
.run-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-width: 520px; margin: 22px auto 0; }
.run-stats div { padding: 10px 6px; border: 1px solid rgba(255,255,255,0.07); border-radius: 12px; background: rgba(255,255,255,0.03); }
.run-stats span { display: block; font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--dim); }
.run-stats b { display: block; margin-top: 4px; font: 800 18px Inter, ui-sans-serif, system-ui, sans-serif; }

@media (max-width: 820px) {
  .hud { grid-template-columns: 1fr auto; padding: 10px; }
  .hud-center { display: none; }
  .stat { min-width: 64px; padding: 6px 9px; }
  .stat-value { font-size: 16px; }
  .hull-stat { min-width: 120px; }
  .panel { padding: 22px 16px; }
  .controls, .run-stats { grid-template-columns: repeat(2, 1fr); }
  .upgrade-cards { grid-template-columns: 1fr; }
  .upgrade-card p { min-height: 0; }
  .scoreboard { grid-column: 1 / -1; }
}

/* ---------- Touch ---------- */
html, body { overscroll-behavior: none; touch-action: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent; }
button { touch-action: manipulation; }
.touch-only { display: none; }
body.touch .touch-only { display: grid; }
body.touch .desktop-only, body.touch .dock-hint, body.touch .card-key, body.touch .tip { display: none; }
.touch-dash { display: none; position: absolute; right: calc(18px + env(safe-area-inset-right)); bottom: calc(18px + env(safe-area-inset-bottom)); width: 76px; height: 76px; border: 0; border-radius: 50%; color: #04060d; font: 900 12px var(--display); letter-spacing: 1px; background: conic-gradient(rgba(255,255,255,0.9) var(--cd, 360deg), rgba(255,255,255,0.18) 0); box-shadow: 0 0 0 3px rgba(4,6,13,0.9) inset, 0 0 24px rgba(255,255,255,0.15); opacity: 0.75; user-select: none; -webkit-user-select: none; }
.touch-dash.ready { background: radial-gradient(circle, #ffffff 55%, #9ff8ff 100%); box-shadow: 0 0 28px rgba(159, 248, 255, 0.6); opacity: 0.9; }
.touch-dash:active { transform: scale(0.94); }
body.touch.in-game .touch-dash { display: block; }
body.touch.in-game .inventory { display: none; }
.rotate-hint { display: none; position: absolute; inset: 0; z-index: 20; place-items: center; align-content: center; gap: 14px; background: var(--bg); text-align: center; color: var(--dim); font-size: 15px; }
.rotate-icon { font-size: 54px; color: var(--cyan); animation: spin 2s ease-in-out infinite; }
@keyframes spin { 50% { transform: rotate(90deg); } 100% { transform: rotate(90deg); } }
@media (orientation: portrait) and (pointer: coarse) {
  body.in-game .rotate-hint { display: grid; }
}

/* Short landscape screens (phones) */
@media (max-height: 520px) {
  .hud { padding: calc(6px + env(safe-area-inset-top)) calc(10px + env(safe-area-inset-right)) 6px calc(10px + env(safe-area-inset-left)); gap: 6px; }
  .hud { grid-template-columns: 1fr auto 1fr; }
  .hud-center { display: block; }
  .scoreboard { grid-column: 3; }
  .stat { min-width: 56px; padding: 4px 8px; border-radius: 9px; }
  .stat-label { font-size: 8px; letter-spacing: 1.5px; }
  .stat-value { font-size: 15px; }
  .hull-stat { min-width: 118px; }
  .bar { height: 5px; margin-top: 4px; }
  .sub-row { margin-top: 4px; }
  .combo { font-size: 10px; top: calc(100% + 3px); }
  .icon-button { width: 32px; height: 32px; border-radius: 9px; }
  .hud-right .stat { display: none; }
  .boss-bar { width: 34vw; }
  .room-info { font-size: 9px; }
  .scoreboard { min-width: 130px; padding: 4px 8px; font-size: 10px; }
  .upgrade-dock { top: 50px; padding: 10px 12px 8px; border-radius: 14px; }
  .dock-head { margin-bottom: 8px; }
  .dock-head h3 { font-size: 11px; }
  .upgrade-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .upgrade-card { padding: 10px 10px 8px; border-radius: 12px; }
  .upgrade-icon { font-size: 20px; }
  .upgrade-card h4 { margin-top: 6px; font-size: 13px; }
  .upgrade-card p { min-height: 0; font-size: 11px; }
  .level-pips { margin-top: 6px; }
  .banner-title { font-size: clamp(22px, 6vh, 40px); }
  .banner-sub { font-size: 10px; }
  .overlay { padding: 8px; }
  .panel { max-height: calc(100vh - 16px); padding: 16px 20px; border-radius: 18px; }
  .logo { font-size: 30px; }
  .subtitle { margin-top: 8px; font-size: 13px; }
  .controls { grid-template-columns: repeat(4, 1fr); margin-top: 12px; }
  .controls div { padding: 8px 6px; }
  .menu-buttons { margin-top: 14px; gap: 8px; }
  .primary-button { padding: 11px 22px; }
  .secondary-button, .ghost-button { padding: 10px 20px; }
  .lobby-grid { margin-top: 12px; }
  .lobby-actions { margin-top: 12px; }
  .final-score { font-size: 44px; }
  .run-stats { margin-top: 12px; grid-template-columns: repeat(4, 1fr); }
}