:root {
  --bg: #06101c;
  --bg-2: #091827;
  --panel: rgba(10, 26, 43, .78);
  --panel-2: rgba(14, 35, 56, .84);
  --line: rgba(146, 183, 216, .15);
  --line-strong: rgba(146, 183, 216, .26);
  --text: #edf6ff;
  --muted: #8ea5b8;
  --soft: #b8cad8;
  --cyan: #54e6ff;
  --blue: #6d91ff;
  --green: #63f5ba;
  --yellow: #ffd36a;
  --red: #ff718a;
  --shadow: 0 24px 80px rgba(0, 0, 0, .22);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -5%, rgba(55, 114, 255, .16), transparent 32rem),
    radial-gradient(circle at 88% 15%, rgba(44, 225, 255, .10), transparent 30rem),
    linear-gradient(180deg, #06101c 0%, #07131f 45%, #050d16 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

button, input { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }

.ambient {
  position: fixed;
  width: 26rem;
  height: 26rem;
  filter: blur(110px);
  opacity: .10;
  border-radius: 50%;
  pointer-events: none;
}
.ambient-a { background: #3677ff; left: -10rem; top: 35rem; }
.ambient-b { background: #40e6ff; right: -12rem; top: 8rem; }

.app-shell { width: min(1480px, calc(100% - 36px)); margin: 0 auto; position: relative; z-index: 1; }
.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  border: 1px solid rgba(84, 230, 255, .34);
  background: linear-gradient(145deg, rgba(84,230,255,.12), rgba(109,145,255,.1));
  color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .08em;
  box-shadow: inset 0 0 24px rgba(84,230,255,.06);
}
.brand strong { display: block; font-size: 12px; letter-spacing: .16em; }
.brand small { display: block; color: var(--muted); margin-top: 2px; font-size: 11px; }
.top-actions { display: flex; gap: 10px; }

.ghost-btn, .primary-btn, .icon-btn {
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  cursor: pointer;
  transition: .2s ease;
}
.ghost-btn { padding: 10px 14px; background: rgba(255,255,255,.02); }
.ghost-btn:hover { background: rgba(255,255,255,.055); border-color: rgba(84,230,255,.32); }
.primary-btn {
  background: linear-gradient(135deg, rgba(84,230,255,.94), rgba(109,145,255,.92));
  color: #03101c;
  font-weight: 800;
  border: 0;
  box-shadow: 0 8px 24px rgba(58, 176, 255, .18);
}
.primary-btn:hover { transform: translateY(-1px); filter: brightness(1.06); }
.compact { padding: 10px 15px; }
.icon-btn { width: 38px; height: 38px; background: transparent; color: var(--muted); font-size: 20px; }
.icon-btn:hover { color: var(--text); background: rgba(255,255,255,.04); }

.hero { padding: 70px 0 48px; max-width: 940px; }
.eyebrow, .kicker {
  font-size: 11px; letter-spacing: .17em; text-transform: uppercase; color: #7edbf2; font-weight: 800;
}
.eyebrow { display: flex; align-items: center; gap: 9px; }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(99,245,186,.08); }
.hero h1 {
  font-size: clamp(42px, 5.1vw, 74px);
  line-height: .99;
  letter-spacing: -.05em;
  margin: 17px 0 22px;
  max-width: 1050px;
}
.hero h1 span { color: #7fb8ff; }
.hero > p { color: var(--soft); max-width: 770px; font-size: clamp(16px, 1.5vw, 19px); margin: 0; }
.hero-note {
  margin-top: 26px; display: inline-flex; gap: 10px; align-items: center;
  border: 1px solid var(--line); border-radius: 12px; padding: 10px 13px;
  color: var(--muted); background: rgba(255,255,255,.018); font-size: 12px;
}
.hero-note p { margin: 0; }
.hero-note > span { color: var(--cyan); }

.workspace {
  display: grid;
  grid-template-columns: 390px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 29, 47, .86), rgba(8, 22, 36, .82));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.control-panel { padding: 22px; position: sticky; top: 14px; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.panel-heading h2, .interpretation h2 { font-size: 21px; letter-spacing: -.02em; margin: 5px 0 0; }
.scale-note { color: var(--muted); font-size: 11px; text-align: right; padding-top: 5px; }

.scenario-grid { border: 0; padding: 0; margin: 24px 0 0; display: grid; gap: 8px; }
.scenario-grid legend {
  width: 100%; color: var(--muted); font-size: 11px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .12em;
}
.scenario-card {
  position: relative; display: flex; align-items: center; gap: 12px; padding: 11px 12px;
  border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.015);
  cursor: pointer; transition: .18s ease;
}
.scenario-card:hover { border-color: var(--line-strong); background: rgba(255,255,255,.03); }
.scenario-card:has(input:checked) {
  border-color: rgba(84,230,255,.45);
  background: linear-gradient(90deg, rgba(84,230,255,.10), rgba(109,145,255,.04));
  box-shadow: inset 0 0 22px rgba(84,230,255,.035);
}
.scenario-card input { position: absolute; opacity: 0; pointer-events: none; }
.scenario-icon {
  width: 35px; height: 35px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(119, 172, 255, .08); color: var(--cyan); border: 1px solid rgba(119,172,255,.12);
}
.scenario-card strong { display: block; font-size: 13px; }
.scenario-card small { display: block; color: var(--muted); font-size: 10.5px; margin-top: 2px; }

.controls { margin-top: 24px; display: grid; gap: 22px; }
.control-label { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 10px; font-size: 12px; }
.control-label label { color: var(--soft); font-weight: 650; }
.control-label output { color: var(--cyan); font-variant-numeric: tabular-nums; }
.range-meta { display: flex; justify-content: space-between; color: #637b8f; font-size: 9px; margin-top: 4px; }
input[type="range"] {
  width: 100%; height: 4px; appearance: none; border-radius: 999px;
  background: linear-gradient(90deg, rgba(84,230,255,.75), rgba(109,145,255,.6));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 17px; height: 17px; border-radius: 50%; background: #eafcff;
  border: 4px solid #2e7f9a; box-shadow: 0 0 0 4px rgba(84,230,255,.08); cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 11px; height: 11px; border-radius: 50%; background: #eafcff;
  border: 4px solid #2e7f9a; box-shadow: 0 0 0 4px rgba(84,230,255,.08); cursor: pointer;
}

.divider { height: 1px; background: var(--line); margin: 25px 0 20px; }
.policy-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.policy-heading span { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.policy-heading small { color: #60798d; font-size: 9.5px; }
.toggle-list { display: grid; gap: 7px; }
.toggle-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 3px; cursor: pointer;
}
.toggle-row > span { min-width: 0; }
.toggle-row strong { display: block; font-size: 11.5px; }
.toggle-row small { color: var(--muted); font-size: 9.5px; display: block; margin-top: 2px; }
.toggle-row input { display: none; }
.toggle-row i {
  width: 36px; height: 20px; border-radius: 999px; background: rgba(255,255,255,.09);
  border: 1px solid var(--line); position: relative; flex: 0 0 auto; transition: .2s ease;
}
.toggle-row i::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 12px; height: 12px; border-radius: 50%;
  background: #7b91a4; transition: .2s ease;
}
.toggle-row input:checked + i { background: rgba(84,230,255,.18); border-color: rgba(84,230,255,.35); }
.toggle-row input:checked + i::after { transform: translateX(16px); background: var(--cyan); }

.results { display: grid; gap: 18px; min-width: 0; }
.score-row { display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px; }
.score-card, .signal-card, .impact-panel, .timeline-panel, .interpretation, .method { padding: 22px; }
.score-wrap { display: flex; align-items: center; gap: 21px; margin-top: 16px; }
.score-ring {
  width: 104px; height: 104px; flex: 0 0 auto; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--cyan) 0deg, var(--blue) 190deg, rgba(255,255,255,.07) 190deg);
  position: relative;
}
.score-ring::after { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: #0a1a2a; }
.score-ring > div { position: relative; z-index: 1; text-align: center; }
.score-ring strong { font-size: 30px; line-height: 1; }
.score-ring span { display: block; color: var(--muted); font-size: 9px; margin-top: 2px; }
.score-wrap h2 { font-size: 23px; letter-spacing: -.03em; margin: 0 0 7px; }
.score-wrap p, .signal-card > p { margin: 0; color: var(--muted); font-size: 12px; max-width: 480px; }
.signal-value { display: flex; align-items: center; gap: 13px; margin: 18px 0 13px; }
.signal-value > span {
  width: 48px; height: 48px; display: grid; place-items: center; border-radius: 13px;
  background: rgba(255,113,138,.08); color: var(--red); border: 1px solid rgba(255,113,138,.16); font-size: 21px;
}
.signal-value strong { display: block; font-size: 17px; }
.signal-value small { display: block; color: var(--muted); font-size: 10px; margin-top: 2px; }

.impact-grid { margin-top: 19px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.impact-card {
  min-height: 142px; padding: 15px; border-radius: 15px; border: 1px solid var(--line);
  background: rgba(255,255,255,.017);
}
.impact-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.impact-top span:first-child { font-size: 11px; color: var(--soft); }
.impact-value { font-weight: 800; font-size: 18px; font-variant-numeric: tabular-nums; }
.impact-bar { height: 5px; border-radius: 999px; background: rgba(255,255,255,.06); margin: 17px 0 11px; overflow: hidden; position: relative; }
.impact-bar::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: rgba(255,255,255,.2); z-index: 2; }
.impact-fill { height: 100%; position: absolute; border-radius: 999px; transition: width .4s ease, left .4s ease; }
.impact-card small { color: var(--muted); font-size: 10px; }
.impact-card[data-tone="bad"] .impact-value { color: var(--red); }
.impact-card[data-tone="bad"] .impact-fill { background: linear-gradient(90deg, #b74766, var(--red)); }
.impact-card[data-tone="good"] .impact-value { color: var(--green); }
.impact-card[data-tone="good"] .impact-fill { background: linear-gradient(90deg, var(--green), #6dd8ff); }
.impact-card[data-tone="neutral"] .impact-value { color: var(--yellow); }
.impact-card[data-tone="neutral"] .impact-fill { background: var(--yellow); }

.legend { display: flex; gap: 14px; color: var(--muted); font-size: 10px; padding-top: 5px; }
.legend i { width: 16px; height: 2px; display: inline-block; vertical-align: middle; margin-right: 5px; }
.legend-line { background: var(--cyan); }
.legend-zero { border-top: 1px dashed #69849a; }
.canvas-wrap { margin-top: 15px; width: 100%; min-height: 270px; }
canvas { width: 100%; height: 270px; display: block; }
.timeline-footer { display: flex; justify-content: space-between; color: #62798c; font-size: 9px; border-top: 1px solid var(--line); padding-top: 10px; }
.timeline-footer span:nth-child(2) { color: var(--muted); }

.interpretation { display: grid; grid-template-columns: .7fr 1.2fr; column-gap: 28px; row-gap: 20px; align-items: start; }
.interpretation > p { color: var(--soft); font-size: 13px; margin: 4px 0 0; }
.callouts { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); padding-top: 15px; }
.callouts > div { padding: 2px 18px; border-right: 1px solid var(--line); }
.callouts > div:first-child { padding-left: 0; }
.callouts > div:last-child { border-right: 0; }
.callouts span { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .1em; display: block; }
.callouts strong { font-size: 12px; display: block; margin-top: 5px; }

.method { padding-block: 0; }
.method summary { display: flex; align-items: center; justify-content: space-between; cursor: pointer; list-style: none; padding: 18px 0; }
.method summary::-webkit-details-marker { display: none; }
.method summary strong { display: block; font-size: 12px; }
.method summary small { display: block; color: var(--muted); font-size: 10px; margin-top: 2px; }
.method summary > span:last-child { color: var(--cyan); font-size: 18px; }
.method[open] summary > span:last-child { transform: rotate(45deg); }
.method-body { border-top: 1px solid var(--line); padding: 16px 0 20px; color: var(--muted); font-size: 11px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.method-body p { margin: 0; }

footer {
  display: flex; justify-content: space-between; gap: 20px; padding: 28px 2px 40px; margin-top: 18px;
  color: #566d80; font-size: 9px; letter-spacing: .1em; border-top: 1px solid var(--line);
}
.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 20; transform: translate(-50%, 18px);
  background: #dffaff; color: #07131f; border-radius: 10px; padding: 10px 14px; font-size: 11px; font-weight: 800;
  opacity: 0; pointer-events: none; transition: .25s ease; box-shadow: 0 12px 34px rgba(0,0,0,.28);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 330px minmax(0, 1fr); }
  .score-row { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .app-shell { width: min(100% - 24px, 1480px); }
  .hero { padding-top: 46px; }
  .workspace { grid-template-columns: 1fr; }
  .control-panel { position: static; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .interpretation { grid-template-columns: 1fr; }
  .callouts { grid-column: auto; }
  .method-body { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .topbar { align-items: flex-start; padding: 14px 0; }
  .brand small { display: none; }
  .top-actions .ghost-btn { display: none; }
  .hero h1 { font-size: 42px; }
  .hero h1 br { display: none; }
  .hero-note { align-items: flex-start; }
  .impact-grid { grid-template-columns: 1fr; }
  .score-wrap { align-items: flex-start; }
  .score-ring { width: 88px; height: 88px; }
  .score-ring strong { font-size: 25px; }
  .callouts { grid-template-columns: 1fr; gap: 10px; }
  .callouts > div { padding: 0 0 10px; border-right: 0; border-bottom: 1px solid var(--line); }
  .callouts > div:last-child { border-bottom: 0; }
  .legend { display: none; }
  .timeline-footer span:nth-child(2) { display: none; }
  footer { flex-direction: column; }
}