@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap");

:root {
  color-scheme: dark;
  --ink: #0a0f14;
  --panel: rgba(18, 27, 35, 0.88);
  --panel-strong: #121b23;
  --line: rgba(255, 255, 255, 0.12);
  --muted: #95a3ae;
  --text: #f5f8fa;
  --accent: #f7c600;
  --accent-deep: #d9a900;
  --cyan: #46c7ee;
  --success: #56d891;
  font-family: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { min-height: 100%; margin: 0; }

body {
  background: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

button, input { font: inherit; }
button { cursor: pointer; }

.simulator-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(310px, 0.85fr) minmax(480px, 2.25fr) minmax(280px, 0.82fr);
  grid-template-rows: 74px 1fr 44px;
  background:
    radial-gradient(circle at 75% 20%, rgba(70, 199, 238, 0.10), transparent 28%),
    linear-gradient(135deg, #111a22 0%, #080d12 55%, #05090c 100%);
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 13, 18, 0.9);
  backdrop-filter: blur(16px);
  z-index: 10;
}

.brand { display: inline-flex; align-items: center; gap: 11px; color: inherit; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 2px solid var(--accent);
  color: var(--accent);
  font: 800 18px/1 "Barlow Condensed", sans-serif;
  transform: skew(-7deg);
}
.brand strong, .brand small { display: block; }
.brand strong { font: 800 21px/0.92 "Barlow Condensed", sans-serif; letter-spacing: 0.07em; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 8px; letter-spacing: 0.22em; }
.brand-small strong { font-size: 18px; }

.topbar-actions, .controller-header { display: flex; align-items: center; gap: 14px; }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  font-size: 12px;
  font-weight: 700;
}
.status-pill i { width: 7px; height: 7px; border-radius: 50%; background: #74818b; }
.status-pill.is-connected { color: #c8f7dc; border-color: rgba(86, 216, 145, 0.35); }
.status-pill.is-connected i { background: var(--success); box-shadow: 0 0 12px var(--success); }
.status-pill.is-error { color: #ffb7b7; border-color: rgba(255, 95, 95, 0.4); }
.status-pill.is-error i { background: #ff5f5f; }

.ghost-button, .controller-link, .controller-actions button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 13px;
  color: var(--text);
  background: transparent;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
}

.lesson-panel {
  position: relative;
  padding: clamp(40px, 6vh, 88px) 32px;
  border-right: 1px solid var(--line);
  z-index: 2;
}
.lesson-progress { height: 3px; margin-bottom: 40px; overflow: hidden; background: rgba(255,255,255,.08); }
.lesson-progress span { display: block; width: 25%; height: 100%; background: var(--accent); transition: width .4s ease; }
.eyebrow { color: var(--accent); font: 700 12px/1 "Barlow Condensed", sans-serif; letter-spacing: .18em; }
.lesson-panel h1, .pairing-card h2, .mobile-pair-card h1 {
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: -0.025em;
}
.lesson-panel h1 { max-width: 340px; margin: 16px 0; font-size: clamp(46px, 5vw, 76px); line-height: .88; }
.lesson-copy { max-width: 360px; color: #c4cdd4; font-size: 16px; line-height: 1.65; }
.input-hint { display: flex; align-items: center; gap: 16px; margin-top: 32px; color: #fff; font-weight: 700; }
.mini-stick { position: relative; width: 62px; height: 62px; border: 1px solid var(--line); border-radius: 50%; background: #0e151b; }
.mini-stick i { position: absolute; left: 20px; top: 20px; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 16px rgba(247,198,0,.45); animation: hint-forward 1.4s infinite ease-in-out; }
@keyframes hint-forward { 0%,100% { transform: translateY(8px); } 55% { transform: translateY(-13px); } }
.success-message { min-height: 24px; margin-top: 28px; color: var(--success); font-weight: 700; }

.viewport-wrap { position: relative; min-width: 0; overflow: hidden; }
#simulatorCanvas { width: 100%; height: 100%; display: block; }
.scene-vignette { position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 140px rgba(0,0,0,.5); }
.flight-data { position: absolute; left: 22px; bottom: 22px; display: flex; gap: 8px; }
.flight-data span { min-width: 92px; padding: 10px 12px; border: 1px solid var(--line); background: rgba(8,13,18,.68); backdrop-filter: blur(10px); }
.flight-data small, .flight-data strong { display: block; }
.flight-data small { color: var(--muted); font: 600 9px/1 Inter; letter-spacing: .12em; }
.flight-data strong { margin-top: 6px; font: 700 15px/1 "Barlow Condensed"; }
.quality-badge { position: absolute; right: 20px; top: 20px; padding: 8px 10px; border: 1px solid rgba(70,199,238,.24); color: var(--cyan); background: rgba(8,13,18,.62); font-size: 9px; letter-spacing: .15em; }

.pairing-card {
  padding: clamp(32px, 5vh, 64px) 28px;
  border-left: 1px solid var(--line);
  background: rgba(9, 15, 20, .72);
  z-index: 2;
}
.pairing-card h2 { margin: 12px 0 8px; font-size: 38px; }
.pairing-card > div > p:not(.eyebrow), .pair-code-label, .privacy-note { color: var(--muted); font-size: 12px; line-height: 1.55; }
.qr-wrap { width: min(100%, 230px); aspect-ratio: 1; margin: 28px auto 18px; padding: 10px; background: #fff; border-radius: 12px; }
.qr-wrap img { width: 100%; height: 100%; display: block; }
.qr-skeleton { width: 100%; height: 100%; background: repeating-linear-gradient(45deg,#e8ecef 0 8px,#f7f8f9 8px 16px); animation: pulse 1.2s infinite alternate; }
@keyframes pulse { to { opacity: .45; } }
.pair-code-label { margin: 18px 0 7px; text-align: center; }
.pair-code { display: block; text-align: center; color: var(--accent); font: 800 31px/1 "Barlow Condensed"; letter-spacing: .2em; }
.controller-link { display: block; margin-top: 22px; text-align: center; }
.privacy-note { margin-top: 18px; text-align: center; }

.simulator-footer { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; padding: 0 28px; border-top: 1px solid var(--line); color: #63717b; font-size: 9px; letter-spacing: .06em; }

/* Mobile controller */
.controller-page { min-height: 100svh; background: radial-gradient(circle at 50% 45%, #253541 0, #0a1015 64%, #05080a 100%); overscroll-behavior: none; }
.controller-shell { min-height: 100svh; display: flex; flex-direction: column; }
.controller-header { justify-content: space-between; min-height: 64px; padding: 10px 18px; border-bottom: 1px solid var(--line); }
.mobile-pair-card { width: min(460px, calc(100% - 36px)); margin: auto; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.mobile-pair-card h1 { margin: 12px 0 28px; font-size: 38px; line-height: .95; }
.mobile-pair-card label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 12px; }
.mobile-pair-card input { width: 100%; padding: 16px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); background: #091016; text-align: center; text-transform: uppercase; font: 800 25px/1 "Barlow Condensed"; letter-spacing: .18em; }
.primary-button { width: 100%; margin-top: 12px; padding: 15px; border: 0; border-radius: 10px; background: var(--accent); color: #111; font-weight: 800; }
.form-error { min-height: 20px; color: #ff8585; font-size: 12px; }

.controller-deck { position: relative; flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; padding: 8px; overflow: hidden; touch-action: none; user-select: none; }
.controller-stage { position: relative; width: min(94vw, calc((100svh - 80px) * 1.048), 620px); aspect-ratio: 349 / 333; filter: drop-shadow(0 24px 36px rgba(0,0,0,.48)); }
.controller-image { display: block; width: 100%; height: 100%; object-fit: contain; pointer-events: none; -webkit-user-drag: none; }
.controller-center { position: absolute; z-index: 2; left: 18%; top: 53%; width: 64%; height: 30%; display: grid; place-items: center; padding: 10px 12px; text-align: center; pointer-events: none; }
.controller-center span { color: #151c22; font-size: clamp(10px, 2.5vw, 14px); font-weight: 800; line-height: 1.3; text-shadow: 0 1px rgba(255,255,255,.32); }
.joystick-zone { position: absolute; z-index: 3; top: 13.7%; width: 21.8%; aspect-ratio: 1; touch-action: none; }
.left-zone { left: 12.5%; }
.right-zone { left: 65%; }
.joystick-ring { position: relative; width: 100%; height: 100%; border: 2px solid transparent; border-radius: 50%; }
.joystick-knob { position: absolute; z-index: 2; left: 50%; top: 50%; width: 28%; aspect-ratio: 1; border: 2px solid rgba(247,198,0,.78); border-radius: 50%; background: rgba(247,198,0,.22); box-shadow: 0 0 0 5px rgba(247,198,0,.08), 0 3px 10px rgba(0,0,0,.38); opacity: .34; transform: translate(-50%,-50%); transition: opacity .12s ease; will-change: transform; }
.joystick-zone.is-active .joystick-ring { border-color: rgba(247,198,0,.7); box-shadow: 0 0 20px rgba(247,198,0,.28); }
.joystick-zone.is-active .joystick-knob { opacity: 1; }
.rotate-hint { display: none; padding: 10px; color: var(--muted); text-align: center; font-size: 11px; }

@media (max-width: 1050px) {
  .simulator-shell { grid-template-columns: 290px 1fr; grid-template-rows: 74px minmax(520px, 1fr) auto 44px; }
  .pairing-card { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 180px 1fr; align-items: center; gap: 22px; padding: 24px 30px; border: 1px solid var(--line); }
  .qr-wrap { width: 160px; margin: 0; }
}

@media (max-width: 720px) {
  .simulator-shell { display: block; }
  .topbar { height: 68px; padding: 0 16px; }
  .topbar-actions .ghost-button { display: none; }
  .lesson-panel { padding: 30px 20px; border-right: 0; }
  .lesson-panel h1 { font-size: 48px; }
  .viewport-wrap { height: 58vh; min-height: 420px; }
  .pairing-card { display: block; padding: 30px 20px; }
  .qr-wrap { width: 220px; margin: 25px auto; }
  .simulator-footer { display: none; }
}

@media (orientation: portrait) and (max-width: 700px) {
  .controller-deck[hidden] + .rotate-hint { display: none; }
  .controller-deck:not([hidden]) + .rotate-hint { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}