:root {
  --bg: #04050d;
  --panel: rgba(10, 13, 34, 0.86);
  --line: rgba(120, 140, 255, 0.28);
  --ink: #e8ecff;
  --muted: #9aa3d6;
  --cyan: #7df9ff;
  --blue: #4d5dff;
  --gold: #ffd166;
  --pink: #ff4fa3;
  --green: #5cf2b0;
  --orange: #ff9e3d;
  --yellow: #ffd23f;
  --purple: #b77dff;
  --red: #ff3b5c;
  --sky: #4cc9f0;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font-family: var(--font); overflow: hidden; }
body { user-select: none; -webkit-user-select: none; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

canvas#game { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
body.playing.mouse canvas#game { cursor: none; }
.vignette { position: fixed; inset: 0; pointer-events: none; background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.55) 100%); }

/* ---------- HUD ---------- */
.hud { position: fixed; inset: 0; pointer-events: none; padding: max(12px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left)); display: grid; grid-template-columns: 1fr auto 1fr; align-items: start; align-content: start; font-variant-numeric: tabular-nums; }
.hud-score { display: flex; align-items: baseline; gap: 14px; }
.score { font-size: clamp(22px, 3.2vw, 34px); font-weight: 800; letter-spacing: 0.02em; text-shadow: 0 0 12px rgba(125, 249, 255, 0.55); }
.mult { font-size: clamp(16px, 2.2vw, 22px); font-weight: 800; color: var(--gold); text-shadow: 0 0 10px rgba(255, 209, 102, 0.6); transition: transform 0.08s; }
.mult .x { opacity: 0.75; margin-right: 1px; }
.mult.bump { transform: scale(1.25); }
.hud-center { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.wave { font-size: 13px; font-weight: 700; letter-spacing: 0.3em; color: var(--muted); }
.boss-bar { display: flex; align-items: center; gap: 10px; }
.boss-name { font-size: 12px; font-weight: 800; letter-spacing: 0.25em; color: var(--red); }
.boss-track { width: min(40vw, 360px); height: 8px; border: 1px solid rgba(255, 59, 92, 0.6); border-radius: 4px; overflow: hidden; }
.boss-track i { display: block; height: 100%; background: linear-gradient(90deg, #ff3b5c, #ff9e3d); transform-origin: left; box-shadow: 0 0 12px #ff3b5c; }
.hud-right { display: flex; justify-content: flex-end; align-items: center; gap: 14px; }
.stock { display: flex; gap: 4px; }
.stock i { width: 14px; height: 14px; display: block; background: var(--cyan); clip-path: polygon(100% 50%, 0 100%, 25% 50%, 0 0); filter: drop-shadow(0 0 4px var(--cyan)); transform: rotate(-90deg); }
.stock.bombs i { background: none; border: 2px solid #fff; border-radius: 50%; clip-path: none; transform: none; width: 13px; height: 13px; filter: drop-shadow(0 0 3px #fff); }
.icon-button { pointer-events: auto; background: rgba(255, 255, 255, 0.06); border: 1px solid var(--line); color: var(--ink); width: 36px; height: 36px; border-radius: 10px; font-size: 12px; cursor: pointer; }
.xp-bar { position: fixed; left: 50%; transform: translateX(-50%); bottom: max(14px, env(safe-area-inset-bottom)); width: min(460px, calc(100% - 200px)); display: flex; align-items: center; gap: 10px; }
.xp-level { font-size: 12px; font-weight: 800; letter-spacing: 0.15em; color: var(--gold); text-shadow: 0 0 8px rgba(255, 209, 102, 0.6); white-space: nowrap; }
.xp-track { flex: 1; height: 6px; border-radius: 3px; background: rgba(255, 209, 102, 0.12); border: 1px solid rgba(255, 209, 102, 0.3); overflow: hidden; }
.xp-track i { display: block; height: 100%; background: linear-gradient(90deg, #ffb347, #ffd166); transform-origin: left; transform: scaleX(0); box-shadow: 0 0 10px #ffd166; transition: transform 0.15s; }

/* ---------- Banner ---------- */
.banner { position: fixed; left: 0; right: 0; top: 34%; text-align: center; pointer-events: none; font-weight: 900; font-size: clamp(28px, 6vw, 64px); letter-spacing: 0.25em; opacity: 0; text-shadow: 0 0 18px rgba(125, 249, 255, 0.8); }
.banner small { display: block; font-size: 0.3em; letter-spacing: 0.4em; color: var(--muted); margin-top: 6px; }
.banner.show { animation: banner 1.7s ease-out forwards; }
.banner.boss { color: #ffd0d8; text-shadow: 0 0 22px var(--red); }
@keyframes banner {
  0% { opacity: 0; transform: scale(1.6); letter-spacing: 0.6em; }
  12% { opacity: 1; transform: scale(1); letter-spacing: 0.25em; }
  75% { opacity: 1; }
  100% { opacity: 0; transform: scale(0.96); }
}

/* ---------- Touch buttons ---------- */
.touch-ui { position: fixed; right: max(14px, env(safe-area-inset-right)); bottom: max(14px, env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: 12px; }
.touch-ui button { width: 64px; height: 64px; border-radius: 50%; border: 2px solid rgba(159, 180, 255, 0.55); background: rgba(20, 26, 70, 0.55); color: var(--ink); font: 800 11px var(--font); letter-spacing: 0.12em; touch-action: none; }
.touch-ui button:active { background: rgba(125, 249, 255, 0.3); }

/* ---------- Screens ---------- */
.screen { position: fixed; inset: 0; display: grid; place-items: center; padding: 16px; background: radial-gradient(ellipse at center, rgba(4, 5, 13, 0.35), rgba(4, 5, 13, 0.8)); overflow-y: auto; }
.title-screen { background: radial-gradient(ellipse at center, rgba(4, 5, 13, 0.2), rgba(4, 5, 13, 0.7)); }
.panel { width: min(440px, 100%); display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; padding: 28px 24px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); box-shadow: 0 0 40px rgba(77, 93, 255, 0.25), inset 0 0 30px rgba(77, 93, 255, 0.08); backdrop-filter: blur(6px); }
.title-screen .panel { background: rgba(10, 13, 34, 0.55); }
.logo { margin: 0; line-height: 0.9; display: flex; flex-direction: column; font-weight: 900; }
.logo-top { font-size: clamp(46px, 12vw, 76px); letter-spacing: 0.12em; color: #fff; text-shadow: 0 0 10px var(--cyan), 0 0 30px var(--blue), 0 0 60px var(--blue); }
.logo-bottom { font-size: clamp(30px, 8vw, 48px); letter-spacing: 0.42em; margin-right: -0.42em; color: var(--pink); text-shadow: 0 0 10px var(--pink), 0 0 30px #b0206a; }
.tagline { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; max-width: 34ch; }
h2 { margin: 0; font-size: 28px; letter-spacing: 0.12em; text-transform: uppercase; }
h3 { margin: 14px 0 6px; font-size: 13px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--cyan); }
.row { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
button, .button-link { font: 700 15px var(--font); color: var(--ink); background: rgba(255, 255, 255, 0.06); border: 1px solid var(--line); border-radius: 12px; padding: 10px 18px; cursor: pointer; text-decoration: none; transition: background 0.15s, border-color 0.15s, transform 0.1s; }
button:hover, .button-link:hover { background: rgba(125, 249, 255, 0.12); border-color: var(--cyan); }
button:active { transform: scale(0.97); }
button:focus-visible, a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
button.primary { font-size: 19px; letter-spacing: 0.2em; text-transform: uppercase; padding: 14px 44px; background: linear-gradient(135deg, #4d5dff, #b04dff); border: 0; box-shadow: 0 0 22px rgba(77, 93, 255, 0.6); }
button.primary:hover { background: linear-gradient(135deg, #6573ff, #c26bff); box-shadow: 0 0 30px rgba(125, 140, 255, 0.85); }
.best-line { margin: 0; color: var(--muted); font-size: 14px; letter-spacing: 0.1em; }
.best-line b { color: var(--gold); font-variant-numeric: tabular-nums; }
.home-link { color: var(--muted); font-size: 13px; text-decoration: none; }
.home-link:hover { color: var(--ink); }

.final-score { font-size: clamp(40px, 10vw, 56px); font-weight: 900; font-variant-numeric: tabular-nums; text-shadow: 0 0 16px rgba(125, 249, 255, 0.6); }
.new-best { margin: 0; color: var(--gold); font-weight: 800; letter-spacing: 0.25em; text-transform: uppercase; animation: glow 1s ease-in-out infinite alternate; }
@keyframes glow { from { text-shadow: 0 0 4px var(--gold); } to { text-shadow: 0 0 18px var(--gold); } }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; width: 100%; margin: 0; }
.stats div { background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); border-radius: 10px; padding: 8px; }
.stats dt { font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
.stats dd { margin: 2px 0 0; font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; }
.top-scores { margin: 0; padding: 0; list-style: none; width: 100%; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.top-scores li { display: flex; justify-content: space-between; padding: 3px 6px; border-radius: 6px; }
.top-scores li.current { color: var(--gold); background: rgba(255, 209, 102, 0.08); }

/* ---------- Level-up ---------- */
.levelup-screen { background: radial-gradient(ellipse at center, rgba(4, 5, 13, 0.55), rgba(4, 5, 13, 0.85)); }
.levelup { width: min(820px, 100%); display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; animation: rise 0.25s ease-out; }
.levelup-kicker { margin: 0; color: var(--gold); font-weight: 800; letter-spacing: 0.35em; text-transform: uppercase; text-shadow: 0 0 12px rgba(255, 209, 102, 0.7); }
.levelup-hint { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.choices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; width: 100%; }
.choice { --accent: var(--pink); position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; min-height: 170px; padding: 18px 16px 16px; text-align: left; border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); border-radius: 16px; background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 16%, #0b0e26), #0b0e26 70%); box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 25%, transparent); }
.choice:hover, .choice:focus-visible { border-color: var(--accent); background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 28%, #0b0e26), #0b0e26 75%); transform: translateY(-3px); }
.choice:disabled { opacity: 0.55; cursor: default; transform: none; }
.choice[data-kind="ship"] { --accent: var(--sky); }
.choice[data-kind="defense"] { --accent: var(--green); }
.choice .tag { font-size: 10px; font-weight: 800; letter-spacing: 0.25em; text-transform: uppercase; color: var(--accent); }
.choice .name { font-size: 19px; font-weight: 800; color: #fff; }
.choice .rank { font-size: 12px; font-weight: 700; color: var(--gold); letter-spacing: 0.1em; }
.choice .text { font-size: 14px; font-weight: 500; line-height: 1.4; color: var(--ink); }
.choice kbd { position: absolute; top: 12px; right: 12px; }
.hint-touch { display: none; }
@media (pointer: coarse) {
  .choice kbd, .hint-keys { display: none; }
  .hint-touch { display: inline; }
}
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

.build { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.build li { font-size: 12px; font-weight: 700; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); }
.build li[data-kind="weapon"] { color: #ffb0d6; border-color: rgba(255, 79, 163, 0.4); }
.build li[data-kind="ship"] { color: #a6e6fa; border-color: rgba(76, 201, 240, 0.4); }
.build li[data-kind="defense"] { color: #aef7d6; border-color: rgba(92, 242, 176, 0.4); }
.build:empty { display: none; }

/* ---------- Settings ---------- */
.settings { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; width: 100%; }
.settings button { font-size: 13px; padding: 8px 10px; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.settings button::after { content: 'OFF'; font-size: 11px; color: var(--muted); letter-spacing: 0.1em; }
.settings button[aria-pressed="true"]::after { content: 'ON'; color: var(--green); }

/* ---------- Dialogs ---------- */
.modal { width: min(640px, calc(100% - 32px)); max-height: calc(100% - 32px); color: var(--ink); background: #0b0e26; border: 1px solid var(--line); border-radius: 16px; padding: 24px; box-shadow: 0 0 50px rgba(77, 93, 255, 0.35); line-height: 1.5; font-size: 14px; }
.modal::backdrop { background: rgba(2, 3, 10, 0.7); }
.modal h2 { font-size: 22px; margin-bottom: 8px; }
.modal-close { position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; padding: 0; font-size: 20px; line-height: 1; }
.modal ul { margin: 0; padding-left: 18px; }
.modal li { margin: 3px 0; }
.controls { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
kbd { display: inline-block; min-width: 22px; padding: 1px 6px; margin-right: 3px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; font: 700 12px var(--font); text-align: center; background: rgba(255, 255, 255, 0.05); }
.gold { color: var(--gold); }
.bestiary { list-style: none; padding: 0 !important; display: grid; grid-template-columns: 1fr 1fr; gap: 2px 20px; }
.swatch { display: inline-block; width: 10px; height: 10px; margin-right: 8px; transform: rotate(45deg); box-shadow: 0 0 6px currentColor; background: currentColor; }
.swatch.mote { color: var(--purple); }
.swatch.seeker { color: var(--sky); }
.swatch.dodger { color: var(--green); }
.swatch.splitter { color: var(--pink); }
.swatch.charger { color: var(--orange); }
.swatch.spitter { color: var(--yellow); }
.swatch.warden { color: var(--red); }
.note { color: var(--muted); font-size: 13px; }

@media (max-width: 560px) {
  .controls, .bestiary { grid-template-columns: 1fr; }
  .choices { grid-template-columns: 1fr; gap: 10px; }
  .choice { min-height: 0; padding: 14px 14px 12px; }
  .xp-bar { width: calc(100% - 120px); left: 16px; transform: none; }
  .hud { grid-template-columns: 1fr auto; }
  .hud-center { grid-column: 1 / -1; grid-row: 2; }
  .score { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .banner.show { animation-duration: 2.2s; }
}