:root {
  --bg: #070c14;
  --bg-2: #0b1220;
  --panel: rgba(9, 15, 25, 0.88);
  --panel-solid: #0d1524;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #e9eef7;
  --muted: #93a3b8;
  --accent: #7cffb2;
  --accent-ink: #04140c;
  --accent-soft: rgba(124, 255, 178, 0.14);
  --warn: #ffd166;
  --danger: #ff7b72;
  --radius: 18px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 { font-weight: 650; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
button { font-family: inherit; }

.screen { min-height: 100dvh; }
[hidden] { display: none !important; }

/* ── intro ────────────────────────────────────────────────── */
.screen--intro {
  display: grid;
  place-items: center;
  padding: 32px 20px 56px;
  background:
    radial-gradient(900px 520px at 18% -10%, rgba(124, 255, 178, 0.1), transparent 60%),
    radial-gradient(700px 480px at 100% 0%, rgba(88, 166, 255, 0.1), transparent 55%),
    var(--bg);
}

.intro-card {
  width: min(760px, 100%);
  background: linear-gradient(180deg, rgba(16, 25, 40, 0.94), rgba(9, 15, 25, 0.96));
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: clamp(24px, 4vw, 44px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.brand { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.brand-mark {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid rgba(124, 255, 178, 0.35);
  color: var(--accent);
  font-weight: 800; letter-spacing: 0.04em;
}
.brand h1 { font-size: 28px; }
.brand-sub { color: var(--muted); font-size: 13px; margin-top: 2px; }

.lede { color: #c6d2e2; font-size: 15px; line-height: 1.6; margin-bottom: 26px; }
.lede strong { color: var(--text); }

fieldset { border: 0; padding: 0; margin: 0 0 20px; }
legend { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 10px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.chip:hover { border-color: var(--line-strong); }
.chip[aria-checked="true"] {
  background: var(--accent-soft);
  border-color: rgba(124, 255, 178, 0.55);
  color: var(--accent);
}

.pos-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.pos {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}
.pos span { display: block; font-weight: 400; color: var(--muted); font-size: 10px; margin-top: 2px; line-height: 1.15; }
.pos[aria-checked="true"] { background: var(--accent-soft); border-color: rgba(124, 255, 178, 0.55); color: var(--accent); }
.pos[aria-checked="true"] span { color: rgba(124, 255, 178, 0.75); }

.name-field { display: block; margin-bottom: 18px; }
.name-field span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.1em; }
.name-field em { font-style: normal; text-transform: none; letter-spacing: 0; opacity: 0.7; }
.name-field input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 15px;
}
.name-field input:focus { outline: 2px solid rgba(124, 255, 178, 0.5); outline-offset: 1px; }

.btn {
  border: 0;
  border-radius: 14px;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 650;
  cursor: pointer;
  transition: transform 0.12s, opacity 0.15s, background 0.15s;
}
.btn--primary { background: var(--accent); color: var(--accent-ink); width: 100%; }
.btn--primary:hover:not(:disabled) { transform: translateY(-1px); }
.btn--primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }

.fineprint { color: var(--muted); font-size: 12px; line-height: 1.55; margin-top: 14px; }

.intro-facts {
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
.intro-facts strong { color: var(--text); }

/* ── puzzle ───────────────────────────────────────────────── */
.screen--puzzle { position: fixed; inset: 0; overflow: hidden; background: #0a1018; }

.stage { position: absolute; inset: 0; }

.viewer { position: absolute; inset: 0; cursor: grab; touch-action: none; }
.viewer:active { cursor: grabbing; }
.viewer canvas { display: block; width: 100%; height: 100%; }

.hud { position: absolute; left: 0; right: 0; display: flex; padding: clamp(12px, 2vw, 22px); pointer-events: none; z-index: 3; }
.hud > * { pointer-events: auto; }
.hud--top { top: 0; align-items: flex-start; justify-content: space-between; gap: 12px; }
.hud-left { display: flex; gap: 8px; }

.pill {
  background: rgba(7, 12, 20, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.04em;
}
.pill--ghost { color: var(--accent); border-color: rgba(124, 255, 178, 0.3); }

.timer { position: relative; width: 52px; height: 52px; display: grid; place-items: center; }
.timer svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.timer circle { fill: none; stroke-width: 3.5; }
.timer-track { stroke: rgba(255, 255, 255, 0.14); }
.timer-arc {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-dasharray: 119.4;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.1s linear, stroke 0.2s;
}
.timer span {
  font-size: 16px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}
.timer.is-warn .timer-arc { stroke: var(--warn); }
.timer.is-danger .timer-arc { stroke: var(--danger); }

.hud--bottom {
  bottom: 0;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  padding-bottom: max(18px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, transparent, rgba(4, 8, 14, 0.82) 42%);
}

.question-panel {
  width: min(880px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  backdrop-filter: blur(14px);
}
.question-panel h2 { font-size: clamp(16px, 1.9vw, 20px); line-height: 1.3; }
.brief { color: var(--muted); font-size: 13px; margin-top: 5px; }

.options { width: min(880px, 100%); display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.option {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  text-align: left;
  background: rgba(13, 21, 36, 0.92);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.35;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, transform 0.12s;
}
.option:hover:not(:disabled) { border-color: rgba(124, 255, 178, 0.45); transform: translateY(-1px); }
.option:disabled { opacity: 0.5; cursor: default; }
.option .num {
  flex: 0 0 auto;
  width: 22px; height: 22px;
  border-radius: 7px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px; font-weight: 700;
  color: var(--muted);
}
.option.is-chosen { border-color: rgba(124, 255, 178, 0.7); background: rgba(124, 255, 178, 0.1); }
.option.is-chosen .num { background: var(--accent); color: var(--accent-ink); }

.radar-wrap { position: absolute; right: clamp(12px, 2vw, 22px); bottom: 236px; z-index: 4; display: grid; justify-items: end; gap: 8px; }
.radar-toggle {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 12px;
  cursor: pointer;
  backdrop-filter: blur(10px);
}
.radar-toggle[aria-pressed="true"] { border-color: rgba(124, 255, 178, 0.5); color: var(--accent); }
#radar {
  width: 138px;
  height: 184px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(7, 12, 20, 0.82);
  backdrop-filter: blur(10px);
  display: none;
}
#radar.is-open { display: block; }

.look-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(7, 12, 20, 0.7);
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  pointer-events: none;
  transition: opacity 0.5s;
  z-index: 2;
}
.look-hint.is-hidden { opacity: 0; }

/* ── loading ──────────────────────────────────────────────── */
.screen--loading { display: grid; place-items: center; background: var(--bg); }
.loader { display: grid; justify-items: center; gap: 18px; color: var(--muted); font-size: 14px; }
.loader-ring {
  width: 46px; height: 46px; border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── result ───────────────────────────────────────────────── */
.screen--result {
  padding: clamp(20px, 4vw, 48px);
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(124, 255, 178, 0.09), transparent 60%),
    var(--bg);
}
.result-grid { display: grid; grid-template-columns: minmax(300px, 380px) 1fr; gap: 24px; max-width: 1180px; margin: 0 auto; align-items: start; }

.score-card {
  background: linear-gradient(180deg, rgba(16, 25, 40, 0.95), rgba(9, 15, 25, 0.97));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 26px;
  position: sticky;
  top: 24px;
}
.eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--muted); }
.score-big { display: flex; align-items: baseline; gap: 6px; margin: 6px 0 2px; }
.score-big span { font-size: 68px; font-weight: 750; letter-spacing: -0.04em; color: var(--accent); font-variant-numeric: tabular-nums; }
.score-big small { color: var(--muted); font-size: 18px; }
.score-sub { color: #c6d2e2; font-size: 14px; line-height: 1.5; margin-bottom: 16px; }

.percentile {
  border: 1px solid rgba(124, 255, 178, 0.3);
  background: rgba(124, 255, 178, 0.08);
  border-radius: 14px;
  padding: 12px 14px;
  margin-bottom: 20px;
  font-size: 13px;
  line-height: 1.5;
}
.percentile strong { color: var(--accent); }
.percentile .basis { color: var(--muted); font-size: 11.5px; display: block; margin-top: 4px; }

.pillars { display: grid; gap: 12px; margin-bottom: 22px; }
.pillar-head { display: flex; justify-content: space-between; font-size: 12.5px; margin-bottom: 5px; }
.pillar-head b { font-variant-numeric: tabular-nums; }
.pillar-head span { color: var(--muted); }
.pillar-bar { height: 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.pillar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, #4fd1a5, var(--accent)); width: 0; transition: width 0.7s ease; }

.debrief h2 { font-size: 17px; margin-bottom: 14px; }
.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: item; }
.item {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  background: rgba(13, 21, 36, 0.72);
}
.item-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.item-head .tag { font-size: 11px; color: var(--muted); border: 1px solid var(--line); padding: 2px 8px; border-radius: 999px; }
.item-head h3 { font-size: 14px; }
.mark { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; margin-left: auto; }
.mark--ok { background: rgba(124, 255, 178, 0.14); color: var(--accent); }
.mark--no { background: rgba(255, 123, 114, 0.14); color: var(--danger); }
.item p { font-size: 13px; color: #b9c6d8; line-height: 1.5; margin-top: 7px; }
.item .cue { color: var(--muted); font-size: 12.5px; margin-top: 6px; padding-left: 10px; border-left: 2px solid rgba(124, 255, 178, 0.35); }
.item .meta { color: var(--muted); font-size: 11.5px; margin-top: 7px; font-variant-numeric: tabular-nums; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--panel-solid);
  border: 1px solid var(--line-strong);
  padding: 11px 18px;
  border-radius: 999px;
  font-size: 13px;
  z-index: 50;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
}

/* ── responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .result-grid { grid-template-columns: 1fr; }
  .score-card { position: static; }
}

@media (max-width: 700px) {
  .pos-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .options { grid-template-columns: 1fr; }
  .radar-wrap { bottom: auto; top: 74px; }
  #radar { width: 104px; height: 139px; }
  .question-panel { padding: 13px 14px; }
  .option { padding: 10px 12px; font-size: 13.5px; }
  .score-big span { font-size: 56px; }
  .look-hint { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}