:root {
  --bg: #060a12;
  --bg-2: #0b1422;
  --ink: #e8f2ff;
  --muted: #8aa0b8;
  --cyan: #2ee6c5;
  --amber: #f5a623;
  --danger: #ff4d6a;
  --line: rgba(46, 230, 197, 0.28);
  --panel: rgba(10, 18, 32, 0.82);
  --font-display: "Orbitron", sans-serif;
  --font-body: "Noto Sans KR", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

.app-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(1200px 600px at 70% -10%, rgba(46, 230, 197, 0.12), transparent 60%),
    radial-gradient(900px 500px at 10% 100%, rgba(245, 166, 35, 0.1), transparent 55%),
    linear-gradient(180deg, #05080f 0%, #0a1220 50%, #060a12 100%);
}

.grid-floor {
  position: absolute;
  inset: 40% -20% -20%;
  background-image:
    linear-gradient(rgba(46, 230, 197, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 197, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(500px) rotateX(58deg);
  mask-image: linear-gradient(to top, rgba 0%, black 40%, transparent 85%);
  animation: grid-drift 18s linear infinite;
}

@keyframes grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 0 48px, 48px 0; }
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
}
.g1 {
  width: 280px;
  height: 280px;
  background: var(--cyan);
  top: 12%;
  left: 8%;
  animation: pulse-glow 4s ease-in-out infinite;
}
.g2 {
  width: 220px;
  height: 220px;
  background: var(--amber);
  bottom: 18%;
  right: 12%;
  animation: pulse-glow 5.5s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.25; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.08); }
}

.screen {
  position: relative;
  z-index: 1;
  display: none;
  min-height: 100vh;
}
.screen.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.title-stage {
  text-align: center;
  padding: 2rem 1.25rem 3rem;
  max-width: 720px;
}

.brand-mark {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  letter-spacing: 0.06em;
  line-height: 1.05;
  color: var(--ink);
  text-shadow:
    0 0 24px rgba(46, 230, 197, 0.45),
    0 0 60px rgba(46, 230, 197, 0.2);
  animation: neon-pulse 2.8s ease-in-out infinite;
}

@keyframes neon-pulse {
  0%, 100% { text-shadow: 0 0 18px rgba(46, 230, 197, 0.35), 0 0 40px rgba(46, 230, 197, 0.15); }
  50% { text-shadow: 0 0 28px rgba(46, 230, 197, 0.65), 0 0 70px rgba(46, 230, 197, 0.28); }
}

.brand-sub {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.title-tagline {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.title-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.title-keys {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: center;
  margin: 2.5rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.85rem;
}
.title-keys kbd {
  font-family: var(--font-display);
  font-size: 0.72rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--cyan);
  margin-right: 0.35rem;
}

.btn {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn.primary {
  background: linear-gradient(135deg, var(--cyan), #1ab89a);
  color: #041018;
  box-shadow: 0 0 24px rgba(46, 230, 197, 0.35);
}
.btn.primary.pulse {
  animation: btn-pulse 2.2s ease-in-out infinite;
}
@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 0 18px rgba(46, 230, 197, 0.3); }
  50% { box-shadow: 0 0 32px rgba(46, 230, 197, 0.55); }
}
.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn.ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.panel-root {
  width: min(1100px, 100%);
  padding: 1.5rem;
}
.panel-root.narrow {
  width: min(640px, 100%);
}

.eyebrow {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--amber);
}
h1 {
  margin: 0.4rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: 0.04em;
}
.lead {
  margin: 0.6rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.garage-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 900px) {
  .garage-layout {
    grid-template-columns: 1fr;
  }
}

.garage-copy,
.briefing,
.result,
.ending {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.4rem 1.5rem;
  backdrop-filter: blur(10px);
}

.season-progress {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  margin: 1.25rem 0 1.5rem;
}
.round-pip {
  border: 1px solid rgba(138, 160, 184, 0.25);
  border-radius: 8px;
  padding: 0.55rem 0.4rem;
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
}
.round-pip strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.round-pip.current {
  border-color: var(--amber);
  box-shadow: 0 0 12px rgba(245, 166, 35, 0.25);
}
.round-pip.cleared {
  border-color: var(--cyan);
}
.round-pip.locked {
  opacity: 0.45;
}

.select-block h2 {
  margin: 0 0 0.6rem;
  font-size: 0.85rem;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  color: var(--muted);
}
.card-row {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
}
.select-card {
  text-align: left;
  background: rgba(8, 14, 24, 0.9);
  border: 1px solid rgba(138, 160, 184, 0.22);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.select-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
}
.select-card em {
  display: block;
  font-style: normal;
  color: var(--cyan);
  font-size: 0.75rem;
  margin: 0.2rem 0;
}
.select-card span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
}
.select-card.active {
  border-color: var(--neon, var(--cyan));
  box-shadow: 0 0 0 1px var(--neon, var(--cyan)), 0 0 18px color-mix(in srgb, var(--neon, var(--cyan)) 35%, transparent);
}

.garage-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: flex-start;
}
.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.garage-preview {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#garageCanvas {
  flex: 1;
  width: 100%;
  min-height: 320px;
  display: block;
}
.preview-label {
  margin: 0;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--cyan);
}

.dialog {
  margin: 1.4rem 0;
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--cyan);
  background: rgba(6, 12, 22, 0.7);
  border-radius: 0 8px 8px 0;
  min-height: 6rem;
}
.dialog-who {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 0.45rem;
}
.dialog-text {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.55;
}
.briefing-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.controls-hint {
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.race-screen {
  display: none;
  padding: 0;
  align-items: stretch;
  justify-content: stretch;
}
.race-screen.active {
  display: block;
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 100vh;
}
#raceCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hud-root {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}
.hud-top {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
}
.hud-chip {
  background: rgba(6, 10, 18, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  backdrop-filter: blur(6px);
}
.hud-chip .label {
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  margin-right: 0.35rem;
}
.hud-boost {
  position: absolute;
  left: 1rem;
  bottom: 1.25rem;
  width: min(240px, 40vw);
}
.boost-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin-bottom: 0.3rem;
}
.boost-bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  overflow: hidden;
}
.boost-bar i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  box-shadow: 0 0 12px rgba(46, 230, 197, 0.5);
  transition: width 0.08s linear;
}
#minimap {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.5);
}
.hud-countdown {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: clamp(4rem, 15vw, 8rem);
  color: var(--ink);
  text-shadow: 0 0 40px rgba(46, 230, 197, 0.5);
  pointer-events: none;
}
.hud-countdown[hidden],
.hud-banner[hidden] {
  display: none !important;
}
.hud-banner {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  letter-spacing: 0.08em;
  padding: 0.8rem 1.4rem;
  background: rgba(6, 10, 18, 0.8);
  border: 1px solid var(--cyan);
  border-radius: 10px;
  box-shadow: 0 0 30px rgba(46, 230, 197, 0.25);
  pointer-events: none;
}

.result.ok h1 { color: var(--cyan); }
.result.fail h1 { color: var(--danger); }
.result-msg {
  margin: 1rem 0 1.4rem;
  color: var(--muted);
}

.ending-line {
  margin: 0.85rem 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
}
.ending-brand {
  margin: 1.5rem 0;
  font-family: var(--font-display);
  color: var(--cyan);
  letter-spacing: 0.08em;
}

/* Auth */
.auth-box {
  margin: 1.75rem auto 0;
  max-width: 360px;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem 1.2rem;
}
.auth-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}
.auth-tab {
  flex: 1;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.auth-tab.active {
  color: #041018;
  background: var(--cyan);
  border-color: var(--cyan);
}
.auth-form label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.65rem;
}
.auth-form input {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.55rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(6, 12, 22, 0.9);
  color: var(--ink);
  font-family: var(--font-body);
}
.auth-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0 0 0.6rem;
}
.logged-box { margin-top: 1.5rem; }
.hub-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}
.pts {
  color: var(--amber);
  font-family: var(--font-display);
  font-weight: 700;
}
.pts-earn {
  font-family: var(--font-display);
  color: var(--amber);
  font-size: 1.1rem;
}
.muted { color: var(--muted); font-weight: 400; }
.mode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0.4rem 0 0.8rem;
}
.tune-grid { display: grid; gap: 0.45rem; }
.tune-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(138, 160, 184, 0.22);
  border-radius: 8px;
  background: rgba(8, 14, 24, 0.9);
}
.btn.tiny {
  padding: 0.4rem 0.7rem;
  font-size: 0.65rem;
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}
.multi-actions {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-top: 1rem;
}
.join-row {
  display: flex;
  gap: 0.5rem;
}
.join-row input {
  flex: 1;
  padding: 0.7rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(6, 12, 22, 0.9);
  color: var(--ink);
  font-family: var(--font-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.room-panel {
  margin-top: 1.2rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(6, 12, 22, 0.7);
}
.room-head {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  margin-bottom: 0.6rem;
}
.room-players {
  list-style: none;
  margin: 0 0 0.8rem;
  padding: 0;
}
.room-players li {
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(138, 160, 184, 0.15);
  color: var(--muted);
}
.room-players li.ready { color: var(--cyan); }

.auth-form label[hidden] { display: none !important; }