:root {
  color-scheme: dark;
  --ink: #eef7ff;
  --muted: #91a7c6;
  --blue: #3978ff;
  --cyan: #44e5ff;
  --orange: #ffad32;
  --panel: rgba(10, 27, 58, .78);
  --line: rgba(121, 178, 255, .19);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(circle at 74% 6%, rgba(34, 90, 210, .22), transparent 32rem),
    radial-gradient(circle at 9% 36%, rgba(23, 199, 231, .11), transparent 29rem),
    #050d1e;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.maintenance-ambient { height: 100%; inset: 0; pointer-events: none; position: fixed; width: 100%; z-index: -3; }
.maintenance-noise {
  background-image:
    linear-gradient(rgba(108, 164, 247, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 164, 247, .025) 1px, transparent 1px);
  background-size: 32px 32px;
  inset: 0;
  mask-image: linear-gradient(#000, transparent 82%);
  pointer-events: none;
  position: fixed;
  z-index: -2;
}

.maintenance-skip {
  background: #fff;
  border-radius: 0 0 9px 9px;
  color: #061126;
  left: 1rem;
  padding: .65rem 1rem;
  position: fixed;
  top: -4rem;
  transition: top .2s;
  z-index: 20;
}
.maintenance-skip:focus { top: 0; }

.maintenance-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(4, 13, 31, .73);
  border-bottom: 1px solid rgba(123, 177, 255, .13);
  display: flex;
  gap: 1.25rem;
  justify-content: space-between;
  min-height: 76px;
  padding: .8rem clamp(1rem, 4vw, 4.5rem);
  position: sticky;
  top: 0;
  z-index: 12;
}

.maintenance-brand { align-items: center; color: #fff; display: flex; gap: .75rem; text-decoration: none; }
.maintenance-brand img { background: #fff; border-radius: 10px; height: 42px; object-fit: contain; padding: 3px; width: 54px; }
.maintenance-brand strong, .maintenance-brand small { display: block; }
.maintenance-brand strong { font-size: .98rem; letter-spacing: .08em; }
.maintenance-brand small { color: #7593bc; font-size: .62rem; letter-spacing: .13em; margin-top: .15rem; }

.maintenance-system-state { align-items: center; color: #9ab1cf; display: flex; font-size: .78rem; font-weight: 750; gap: .5rem; }
.maintenance-system-state span { animation: state-ping 1.7s infinite; background: #ffb63d; border-radius: 50%; box-shadow: 0 0 18px rgba(255, 182, 61, .7); height: .5rem; width: .5rem; }
.maintenance-admin-entry, .race-utility-button {
  background: rgba(30, 72, 137, .25);
  border: 1px solid rgba(121, 176, 255, .28);
  border-radius: 10px;
  color: #d7e8ff;
  cursor: pointer;
  font-size: .8rem;
  font-weight: 800;
  padding: .62rem .9rem;
  text-decoration: none;
  transition: background .2s, border-color .2s, transform .2s;
}
.maintenance-admin-entry:hover, .race-utility-button:hover { background: rgba(45, 104, 200, .38); border-color: rgba(107, 202, 255, .65); transform: translateY(-1px); }

.maintenance-restored {
  align-items: center;
  animation: restored-arrive .45s ease-out both;
  backdrop-filter: blur(16px);
  background: rgba(7, 37, 42, .95);
  border: 1px solid rgba(76, 236, 178, .45);
  border-radius: 16px;
  box-shadow: 0 18px 55px rgba(0, 0, 0, .34), 0 0 34px rgba(48, 224, 163, .12);
  display: flex;
  gap: .8rem;
  left: 50%;
  max-width: min(92vw, 720px);
  padding: .8rem;
  position: fixed;
  top: 90px;
  transform: translateX(-50%);
  width: max-content;
  z-index: 30;
}
.maintenance-restored[hidden] { display: none; }
.maintenance-restored > span { align-items: center; background: #38d99d; border-radius: 50%; color: #052019; display: flex; flex: 0 0 32px; font-weight: 950; height: 32px; justify-content: center; }
.maintenance-restored div { min-width: 0; }
.maintenance-restored strong, .maintenance-restored small { display: block; }
.maintenance-restored strong { color: #dffff4; font-size: .85rem; }
.maintenance-restored small { color: #8ebeb0; font-size: .68rem; margin-top: .18rem; }
.maintenance-restored a { background: #45dea6; border-radius: 9px; color: #06251d; flex: none; font-size: .75rem; font-weight: 900; padding: .55rem .72rem; text-decoration: none; }

.maintenance-main { margin: auto; max-width: 1600px; padding: clamp(2.4rem, 6vw, 6.5rem) clamp(1rem, 4vw, 4.5rem) 3rem; }
.maintenance-hero { align-items: center; display: grid; gap: clamp(2rem, 6vw, 6rem); grid-template-columns: minmax(0, 1.15fr) minmax(300px, .65fr); min-height: min(660px, 72vh); }
.maintenance-kicker { align-items: center; color: #68dff4; display: flex; font-size: .7rem; font-weight: 900; gap: .65rem; letter-spacing: .19em; margin: 0 0 1rem; }
.maintenance-kicker b { background: rgba(255, 174, 49, .12); border: 1px solid rgba(255, 174, 49, .35); border-radius: 999px; color: #ffc261; font-size: .6rem; padding: .25rem .45rem; }
.maintenance-hero h1 { font-size: clamp(3.2rem, 7.8vw, 7.6rem); letter-spacing: -.07em; line-height: .94; margin: 0; max-width: 900px; }
.maintenance-hero h1 span { -webkit-background-clip: text; background: linear-gradient(105deg, #fff 5%, #63e7ff 42%, #3d78ff 78%); background-clip: text; color: transparent; display: block; padding: .08em 0; }
.maintenance-lead { color: #a0b3ce; font-size: clamp(1rem, 1.6vw, 1.25rem); line-height: 1.85; max-width: 760px; }
.maintenance-message { align-items: flex-start; background: rgba(42, 107, 210, .13); border: 1px solid rgba(83, 151, 255, .26); border-radius: 14px; color: #ccddf6; display: flex; gap: .65rem; line-height: 1.65; max-width: 720px; padding: .85rem 1rem; }
.maintenance-message span { align-items: center; background: #3f8cff; border-radius: 50%; color: #fff; display: inline-flex; flex: 0 0 1.25rem; font-size: .75rem; font-style: normal; height: 1.25rem; justify-content: center; margin-top: .15rem; }
.maintenance-meta { display: flex; flex-wrap: wrap; gap: 1.8rem; margin-top: 2.4rem; }
.maintenance-meta div { border-left: 1px solid rgba(118, 170, 246, .26); min-width: 130px; padding-left: .85rem; }
.maintenance-meta small, .maintenance-meta strong { display: block; }
.maintenance-meta small { color: #647c9f; font-size: .68rem; letter-spacing: .08em; }
.maintenance-meta strong { color: #dcecff; font-size: .84rem; margin-top: .35rem; }
.maintenance-meta strong i { animation: state-ping 1.7s infinite; background: #39e29b; border-radius: 50%; display: inline-block; height: .45rem; margin-right: .4rem; width: .45rem; }

.maintenance-core { aspect-ratio: 1; margin: auto; max-width: 500px; perspective: 900px; position: relative; width: 100%; }
.maintenance-core::before { background: radial-gradient(circle, rgba(39, 130, 255, .25), transparent 66%); content: ""; inset: -20%; position: absolute; }
.core-ring { border: 1px solid rgba(83, 192, 255, .4); border-radius: 50%; inset: 12%; position: absolute; }
.core-ring::before, .core-ring::after { background: #5ee5ff; border-radius: 50%; box-shadow: 0 0 22px #27bfff; content: ""; height: 8px; left: 50%; position: absolute; top: -4px; width: 8px; }
.core-ring-one { animation: core-spin 15s linear infinite; border-style: dashed; }
.core-ring-two { animation: core-spin-reverse 10s linear infinite; inset: 23%; transform: rotateX(64deg); }
.core-ring-three { animation: core-breathe 3.6s ease-in-out infinite; border: 5px double rgba(80, 124, 255, .28); inset: 31%; }
.core-logo { align-items: center; background: radial-gradient(circle at 40% 30%, #1749a1, #07132c 68%); border: 1px solid rgba(109, 202, 255, .42); border-radius: 28%; box-shadow: inset 0 0 38px rgba(63, 168, 255, .18), 0 0 70px rgba(38, 100, 255, .23); display: flex; inset: 37%; justify-content: center; position: absolute; transform: rotate(45deg); }
.core-logo img { background: #fff; border-radius: 7px; max-width: 68%; padding: 2px; transform: rotate(-45deg); }
.core-node { animation: node-float 4s ease-in-out infinite; background: #ffb734; border: 3px solid rgba(255, 255, 255, .72); border-radius: 50%; box-shadow: 0 0 22px rgba(255, 183, 52, .8); height: 14px; position: absolute; width: 14px; }
.node-a { left: 6%; top: 40%; }.node-b { animation-delay: -1.2s; right: 10%; top: 22%; }.node-c { animation-delay: -2.1s; bottom: 11%; right: 24%; }

.maintenance-game-section { background: linear-gradient(150deg, rgba(10, 30, 68, .92), rgba(5, 15, 35, .96)); border: 1px solid var(--line); border-radius: 30px; box-shadow: 0 35px 100px rgba(0, 0, 0, .28); margin-top: 4rem; overflow: hidden; padding: clamp(1rem, 2.3vw, 2.1rem); position: relative; }
.maintenance-game-section::before { background: linear-gradient(90deg, #3e7cff, #42e5ff, transparent 80%); content: ""; height: 2px; left: 2rem; position: absolute; right: 2rem; top: 0; }
.race-heading { align-items: flex-end; display: flex; gap: 1rem; justify-content: space-between; margin-bottom: 1.4rem; }
.race-heading h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); margin: 0; }
.race-heading p:not(.maintenance-kicker) { color: #8197b6; line-height: 1.65; margin: .55rem 0 0; }
.race-heading-actions { display: flex; flex: none; gap: .55rem; }
.race-layout { display: grid; gap: 1rem; grid-template-columns: minmax(0, 1fr) 320px; }
.race-console { min-width: 0; }
.race-hud { display: grid; gap: 1px; grid-template-columns: repeat(4, 1fr); margin-bottom: 1px; overflow: hidden; }
.race-hud > div { background: rgba(15, 38, 79, .88); min-width: 0; padding: .65rem .8rem; }
.race-hud small { color: #6e89ad; display: block; font-size: .6rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.race-hud strong { color: #f1f7ff; display: flex; font-size: clamp(.92rem, 2vw, 1.3rem); gap: .3rem; margin-top: .2rem; white-space: nowrap; }
.race-hud em { align-self: flex-end; color: #65dcf2; font-size: .55rem; font-style: normal; padding-bottom: .15rem; }
.race-viewport { aspect-ratio: 16 / 9; background: #07132b; overflow: hidden; position: relative; }
#raceCanvas { display: block; height: 100%; outline: none; touch-action: none; width: 100%; }
#raceCanvas:focus-visible { box-shadow: inset 0 0 0 3px #65e8ff; }
.race-status-strip { bottom: 1rem; display: grid; gap: .65rem; left: 1rem; pointer-events: none; position: absolute; width: min(310px, calc(100% - 2rem)); z-index: 3; }
.race-integrity, .race-nitro { align-items: center; backdrop-filter: blur(8px); background: rgba(3, 11, 28, .66); border: 1px solid rgba(115, 176, 255, .2); border-radius: 8px; display: grid; gap: .55rem; grid-template-columns: 74px 1fr 38px; padding: .42rem .55rem; }
.race-integrity span, .race-nitro span { color: #9cb1ce; font-size: .62rem; font-weight: 800; }
.race-integrity i, .race-nitro i { background: rgba(255, 255, 255, .1); border-radius: 20px; height: 6px; overflow: hidden; }
.race-integrity b, .race-nitro b { background: linear-gradient(90deg, #47db9a, #73ffbc); display: block; height: 100%; transition: width .18s; width: 100%; }
.race-nitro b { background: linear-gradient(90deg, #3379ff, #48ebff); width: 25%; }
.race-integrity strong, .race-nitro strong { color: #e4efff; font-size: .65rem; text-align: right; }
.race-overlay { align-items: center; backdrop-filter: blur(5px); background: radial-gradient(circle, rgba(9, 30, 70, .66), rgba(2, 8, 22, .9)); display: flex; flex-direction: column; inset: 0; justify-content: center; padding: 1.5rem; position: absolute; text-align: center; transition: opacity .25s, visibility .25s; z-index: 5; }
.race-overlay.is-hidden { opacity: 0; pointer-events: none; visibility: hidden; }
.race-overlay-logo { align-items: center; background: linear-gradient(145deg, #2d6ef0, #44e5ff); border: 1px solid rgba(255,255,255,.65); border-radius: 16px; box-shadow: 0 0 40px rgba(47, 127, 255, .48); color: #fff; display: flex; font-size: 1.6rem; font-style: italic; font-weight: 950; height: 58px; justify-content: center; margin-bottom: 1rem; transform: skewX(-8deg); width: 58px; }
.race-overlay h3 { font-size: clamp(1.4rem, 3vw, 2.7rem); margin: 0; }
.race-overlay > p:not(.maintenance-kicker) { color: #9cb0cd; line-height: 1.7; margin: .7rem auto 1.15rem; max-width: 630px; }
.race-start-button { background: linear-gradient(115deg, #f39b20, #ffca57); border: 0; border-radius: 11px; box-shadow: 0 12px 35px rgba(255, 167, 43, .24); color: #101a2e; cursor: pointer; font-weight: 950; padding: .8rem 1.8rem; }
.race-toast { background: rgba(6, 20, 46, .9); border: 1px solid rgba(101, 225, 255, .45); border-radius: 9px; color: #bcf5ff; left: 50%; opacity: 0; padding: .5rem .8rem; pointer-events: none; position: absolute; top: 1rem; transform: translate(-50%, -10px); transition: opacity .2s, transform .2s; z-index: 7; }
.race-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

.race-garage { background: rgba(8, 22, 49, .92); border: 1px solid rgba(113, 167, 241, .16); padding: 1rem; }
.race-garage-top { align-items: center; border-bottom: 1px solid rgba(121, 169, 235, .14); display: flex; justify-content: space-between; padding-bottom: .8rem; }
.race-garage-top small { color: #4edbf3; font-size: .58rem; font-weight: 900; letter-spacing: .14em; }
.race-garage-top h3 { margin: .15rem 0 0; }
.race-garage-top > strong { color: #ffc453; font-size: .82rem; }
.race-car-list { display: grid; gap: .45rem; margin-top: .8rem; }
.race-car-card { align-items: center; background: rgba(22, 49, 91, .55); border: 1px solid transparent; border-radius: 10px; color: #dbe9ff; cursor: pointer; display: grid; gap: .55rem; grid-template-columns: 38px 1fr auto; padding: .55rem; text-align: left; }
.race-car-card:hover { background: rgba(32, 68, 123, .62); }
.race-car-card.is-selected { border-color: #4cdcf4; box-shadow: inset 0 0 18px rgba(55, 196, 231, .08); }
.race-car-card.is-locked { opacity: .72; }
.race-car-card span strong, .race-car-card span small { display: block; }
.race-car-card span small { color: #738cac; font-size: .62rem; margin-top: .1rem; }
.race-car-card em { color: #64ddf3; font-size: .6rem; font-style: normal; font-weight: 850; }
.race-car-swatch { border-radius: 5px 10px 5px 10px; box-shadow: inset 0 -5px 10px rgba(0,0,0,.25), 0 0 14px currentColor; height: 18px; transform: skewX(-12deg); width: 32px; }
.swatch-pulse { background: #377dff; color: #377dff; }.swatch-vortex { background: #ff9c2e; color: #ff9c2e; }.swatch-nova { background: #e84cff; color: #e84cff; }
.race-specs { display: grid; gap: .45rem; margin: .9rem 0; }
.race-specs > div { align-items: center; display: grid; gap: .55rem; grid-template-columns: 38px 1fr; }
.race-specs span { color: #758eaf; font-size: .63rem; }
.race-specs i { background: rgba(255,255,255,.08); border-radius: 8px; height: 5px; overflow: hidden; }
.race-specs b { background: linear-gradient(90deg, #3277ff, #55eaff); display: block; height: 100%; transition: width .25s; }
.race-upgrades { border-top: 1px solid rgba(121, 169, 235, .14); padding-top: .75rem; }
.race-upgrades h4, .race-controls-help h4 { font-size: .78rem; margin: 0 0 .55rem; }
.race-upgrades h4 small { color: #647c9d; font-weight: 500; }
.race-upgrades button { align-items: center; background: transparent; border: 0; border-radius: 8px; color: #d9e8ff; cursor: pointer; display: flex; justify-content: space-between; padding: .52rem; text-align: left; width: 100%; }
.race-upgrades button:hover:not(:disabled) { background: rgba(45, 94, 163, .27); }
.race-upgrades button:disabled { cursor: not-allowed; opacity: .55; }
.race-upgrades span strong, .race-upgrades span small { display: block; }
.race-upgrades span strong { font-size: .7rem; }.race-upgrades span small { color: #657e9f; font-size: .58rem; margin-top: .1rem; }
.race-upgrades em { color: #ffbe4e; font-size: .58rem; font-style: normal; }
.race-controls-help { border-top: 1px solid rgba(121, 169, 235, .14); margin-top: .65rem; padding-top: .65rem; }
.race-controls-help p { color: #728bad; font-size: .58rem; margin: .35rem 0; }
.race-controls-help kbd { background: rgba(55, 103, 171, .35); border: 1px solid rgba(122, 177, 251, .2); border-radius: 4px; color: #cfe2ff; padding: .1rem .25rem; }
.race-touch-controls { display: none; gap: 1rem; justify-content: space-between; margin-top: .8rem; user-select: none; }
.race-touch-steer, .race-touch-pedals { display: flex; gap: .45rem; }
.race-touch-controls button { background: rgba(23, 57, 105, .72); border: 1px solid rgba(116, 181, 255, .31); border-radius: 12px; color: #daebff; min-height: 48px; min-width: 52px; padding: .6rem; touch-action: none; }
.race-touch-controls button.is-pressed { background: #2d71e8; transform: translateY(1px); }
.race-touch-controls .touch-nitro { border-color: rgba(69, 228, 255, .55); color: #5ceaff; }
.race-touch-controls .touch-accelerate { background: rgba(229, 141, 27, .78); border-color: rgba(255, 194, 82, .7); color: #fff; }
.race-screenreader-status { height: 1px; overflow: hidden; position: absolute; width: 1px; clip-path: inset(50%); }

.maintenance-checks { display: grid; gap: 1px; grid-template-columns: repeat(3, 1fr); margin: 2.5rem 0; overflow: hidden; }
.maintenance-checks article { align-items: center; background: rgba(12, 31, 64, .64); border: 1px solid rgba(106, 158, 232, .11); display: flex; gap: 1rem; min-height: 110px; padding: 1rem; position: relative; }
.maintenance-checks article > span { color: #3c79dc; font-size: 1.4rem; font-weight: 950; }
.maintenance-checks strong { font-size: .88rem; }.maintenance-checks p { color: #7287a6; font-size: .72rem; line-height: 1.55; margin: .25rem 0 0; }
.maintenance-checks i { border-bottom: 5px solid transparent; border-left: 7px solid #416da8; border-top: 5px solid transparent; position: absolute; right: -.35rem; z-index: 2; }
.maintenance-footer { color: #536987; display: flex; font-size: .66rem; justify-content: space-between; margin: auto; max-width: 1600px; padding: 0 clamp(1rem, 4vw, 4.5rem) 2rem; }

@keyframes state-ping { 50% { opacity: .45; transform: scale(.72); } }
@keyframes core-spin { to { transform: rotate(360deg); } }
@keyframes core-spin-reverse { from { transform: rotateX(64deg) rotate(360deg); } to { transform: rotateX(64deg) rotate(0); } }
@keyframes core-breathe { 50% { opacity: .55; transform: scale(.92); } }
@keyframes node-float { 50% { transform: translateY(-14px); } }
@keyframes restored-arrive { from { opacity: 0; transform: translate(-50%, -16px); } to { opacity: 1; transform: translate(-50%, 0); } }

@media (max-width: 1120px) {
  .race-layout { grid-template-columns: 1fr; }
  .race-garage { display: none; }
  .race-garage.is-open { display: block; }
  .race-touch-controls { display: flex; }
}
@media (max-width: 820px) {
  .maintenance-system-state { display: none; }
  .maintenance-main { padding-top: 3.5rem; }
  .maintenance-hero { grid-template-columns: 1fr; min-height: auto; }
  .maintenance-core { max-width: 330px; }
  .maintenance-hero h1 { font-size: clamp(3rem, 14vw, 5.5rem); }
  .race-heading { align-items: flex-start; flex-direction: column; }
  .race-hud { grid-template-columns: repeat(2, 1fr); }
  .maintenance-checks { grid-template-columns: 1fr; }
  .maintenance-checks i { border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 7px solid #416da8; bottom: -.45rem; left: 2rem; right: auto; }
}
@media (max-width: 560px) {
  .maintenance-header { gap: .65rem; }.maintenance-brand small { display: none; }.maintenance-brand strong { font-size: .78rem; }
  .maintenance-admin-entry { padding: .55rem .65rem; white-space: nowrap; }
  .maintenance-meta { gap: .9rem; }.maintenance-meta div { min-width: 110px; }
  .maintenance-game-section { border-radius: 18px; margin-left: -.5rem; margin-right: -.5rem; padding: .75rem; }
  .race-heading-actions { width: 100%; }.race-heading-actions button { flex: 1; }
  .race-hud > div { padding: .5rem; }.race-hud small { font-size: .52rem; }
  .race-status-strip { bottom: .5rem; left: .5rem; width: calc(100% - 1rem); }
  .race-integrity, .race-nitro { grid-template-columns: 58px 1fr 34px; padding: .28rem .4rem; }
  .race-touch-controls { align-items: flex-end; }.race-touch-pedals { display: grid; grid-template-columns: repeat(2, 1fr); }
  .race-touch-controls button { font-size: .7rem; min-width: 44px; padding: .45rem; }
  .race-overlay > p:not(.maintenance-kicker) { font-size: .78rem; }.race-overlay-logo { display: none; }
  .maintenance-footer { flex-direction: column; gap: .45rem; }
  .maintenance-restored { align-items: flex-start; top: 76px; width: calc(100% - 1rem); }
  .maintenance-restored small { line-height: 1.4; }
}

@media (hover: none), (pointer: coarse) { .race-touch-controls { display: flex; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .001ms !important; }
  .maintenance-ambient { display: none; }
}