:root {
  color-scheme: dark;
  --bg: #090b0d;
  --panel: #11161a;
  --panel-2: #151d22;
  --line: rgba(218, 232, 229, 0.14);
  --text: #eef4ef;
  --muted: #91a09b;
  --soft: #c5d0cb;
  --accent: #b7ff5c;
  --accent-2: #50d2ff;
  --warn: #ffcf5c;
  --error: #ff756c;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 0%, rgba(80, 210, 255, 0.13), transparent 30rem),
    linear-gradient(135deg, rgba(183, 255, 92, 0.07), transparent 28rem),
    var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 100% 4px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
  z-index: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  background: rgba(9, 11, 13, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(183, 255, 92, 0.5);
  background:
    linear-gradient(90deg, transparent 47%, rgba(183, 255, 92, 0.7) 48% 52%, transparent 53%),
    radial-gradient(circle, rgba(183, 255, 92, 0.26), transparent 64%);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.95rem;
}

.brand small,
.eyebrow {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

nav {
  display: flex;
  gap: 0.5rem;
}

nav a {
  border: 1px solid transparent;
  color: var(--soft);
  padding: 0.45rem 0.7rem;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

nav a:hover {
  border-color: var(--line);
  color: var(--text);
}

main {
  position: relative;
  z-index: 1;
  width: min(1460px, 100%);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2.5rem);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 0.88fr) minmax(420px, 1.12fr);
  gap: clamp(1rem, 2vw, 1.5rem);
  align-items: stretch;
  min-height: calc(100vh - 6.5rem);
}

.panel,
.info-card,
.method {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
  box-shadow: var(--shadow);
}

.panel {
  min-height: 34rem;
  padding: clamp(1.1rem, 2.2vw, 1.8rem);
}

.input-panel {
  display: flex;
  flex-direction: column;
}

.panel-head {
  margin-bottom: 1.6rem;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 12ch;
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 6vw, 5.9rem);
  line-height: 0.9;
  font-weight: 740;
}

h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.4rem, 3vw, 2.5rem);
  line-height: 1;
}

p {
  color: var(--soft);
  line-height: 1.62;
}

.preview-note {
  border-left: 2px solid var(--accent-2);
  margin: 1rem 0 0;
  padding-left: 0.85rem;
  color: var(--muted);
  font-size: 0.9rem;
}

form {
  display: grid;
  gap: 1rem;
  margin-top: auto;
}

label {
  display: grid;
  gap: 0.45rem;
}

label span {
  color: var(--muted);
  font-size: 0.82rem;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  padding: 0.9rem 1rem;
}

textarea {
  resize: vertical;
  min-height: 10rem;
  line-height: 1.45;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.85rem;
  align-items: end;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 3.25rem;
  border: 0;
  background: var(--accent);
  color: #0b0f0d;
  padding: 0 1.2rem;
  cursor: pointer;
  font-weight: 760;
  transition: transform 180ms var(--ease), filter 180ms var(--ease);
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

button:disabled {
  cursor: wait;
  filter: saturate(0.3);
}

.button-icon {
  width: 0.75rem;
  height: 0.75rem;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

.result-panel {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(183, 255, 92, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(183, 255, 92, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(21, 29, 34, 0.95), rgba(11, 14, 16, 0.95));
  background-size: 42px 42px, 42px 42px, auto;
}

.result-state,
.result-content {
  position: relative;
  z-index: 1;
}

.result-state {
  display: grid;
  place-content: center;
  min-height: 30rem;
  text-align: center;
}

.field-graphic {
  position: relative;
  width: min(24rem, 82vw);
  aspect-ratio: 1.62 / 1;
  margin: 0 auto 2rem;
  border: 1px solid rgba(183, 255, 92, 0.38);
}

.field-graphic::before,
.field-graphic::after {
  content: "";
  position: absolute;
  inset: 16%;
  border: 1px solid rgba(183, 255, 92, 0.22);
}

.field-graphic::after {
  inset: auto auto 50% 50%;
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  transform: translate(-50%, 50%);
}

.field-graphic span {
  position: absolute;
  width: 0.7rem;
  height: 0.7rem;
  background: var(--accent);
}

.field-graphic span:nth-child(1) {
  top: 34%;
  left: 34%;
}

.field-graphic span:nth-child(2) {
  top: 52%;
  left: 54%;
  background: var(--accent-2);
}

.field-graphic span:nth-child(3) {
  top: 60%;
  left: 68%;
  background: var(--warn);
}

.hidden {
  display: none !important;
}

.loader {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1.4rem;
  border: 1px solid var(--line);
  border-top-color: var(--accent);
  animation: spin 900ms linear infinite;
}

.result-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.2rem;
  padding-bottom: 1rem;
}

.confidence {
  border: 1px solid rgba(183, 255, 92, 0.35);
  color: var(--accent);
  padding: 0.35rem 0.55rem;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.stack {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.citation {
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  padding: 1rem;
  transform-origin: top;
  animation: rise 420ms var(--ease) both;
}

.citation-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
}

.citation strong {
  display: block;
}

.citation small {
  color: var(--muted);
}

.page-pill {
  border: 1px solid var(--line);
  color: var(--accent-2);
  padding: 0.25rem 0.45rem;
  white-space: nowrap;
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1rem, 2vw, 1.5rem);
  margin-top: clamp(1rem, 2vw, 1.5rem);
}

.info-card {
  min-height: 15rem;
  padding: clamp(1.1rem, 2vw, 1.5rem);
}

.list-output {
  display: grid;
  gap: 0.75rem;
}

.list-output div {
  border-left: 2px solid var(--accent);
  padding-left: 0.8rem;
  color: var(--soft);
  line-height: 1.5;
}

.muted-output {
  color: var(--muted);
  line-height: 1.55;
}

.method {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: clamp(1rem, 2vw, 1.5rem);
  padding: clamp(1.2rem, 3vw, 2rem);
}

.method-copy p {
  max-width: 58ch;
}

.timeline {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 0;
  color: var(--soft);
}

.timeline span {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px) scaleY(0.98);
  }
}

@media (max-width: 920px) {
  .topbar {
    align-items: start;
  }

  nav {
    display: none;
  }

  .workspace,
  .evidence-grid,
  .method {
    grid-template-columns: 1fr;
  }

  .workspace {
    min-height: auto;
  }

  h1 {
    max-width: 13ch;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  main {
    padding: 0.85rem;
  }

  .panel {
    min-height: auto;
  }

  .result-title,
  .citation-head {
    display: grid;
  }

  h1 {
    font-size: clamp(2.25rem, 14vw, 4rem);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}