frontend/style.css

:root {
  --bg: #07111f;
  --panel: #0e1c30;
  --panel-soft: #122640;
  --panel-strong: #183251;
  --text: #ecf3ff;
  --muted: #9eb6d4;
  --accent: #49dcb1;
  --accent-strong: #2ea7ff;
  --warning: #ffc857;
  --danger: #ff6b6b;
  --border: rgba(180, 214, 255, 0.14);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --font-sans: "Segoe UI", "Trebuchet MS", system-ui, sans-serif;
  --font-mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(46, 167, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(73, 220, 177, 0.16), transparent 32%),
    linear-gradient(180deg, #081120 0%, #07111f 100%);
}

.hero {
  padding: 32px 32px 20px;
}

.hero__eyebrow {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.04);
}

.hero__row {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  line-height: 0.95;
}

.hero__copy {
  margin: 14px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1rem;
}

.status-card {
  min-width: 180px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(10, 22, 38, 0.9);
  box-shadow: var(--shadow);
}

.status-card__label {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-card__value {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  font-size: 1.1rem;
  font-weight: 700;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--danger);
}

.status-dot--live {
  background: var(--accent);
  box-shadow: 0 0 18px rgba(73, 220, 177, 0.75);
}

.layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr 0.9fr;
  gap: 22px;
  padding: 0 32px 32px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 38, 64, 0.95), rgba(10, 22, 38, 0.95));
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel__header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.panel__kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}

.panel h2,
.panel h3 {
  margin: 4px 0 0;
}

.meta-row,
.button-row,
.shortcut-links,
.artifact-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill,
.artifact-chip {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
}

.artifact-chip {
  cursor: pointer;
}

.artifact-chip--active {
  border-color: rgba(73, 220, 177, 0.85);
  background: rgba(73, 220, 177, 0.12);
}

.summary {
  margin: 16px 0;
  color: var(--muted);
}

.diff-box {
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(5, 12, 23, 0.92);
  min-height: 460px;
  overflow: auto;
}

.diff-box pre {
  margin: 0;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.field span {
  color: var(--muted);
  font-size: 14px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 12px;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(4, 11, 21, 0.88);
  color: var(--text);
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(46, 167, 255, 0.32);
  border-color: rgba(46, 167, 255, 0.62);
}

.btn {
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 12px 16px;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #03101d;
  font-weight: 700;
}

.btn--secondary,
.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.score-card {
  padding: 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(73, 220, 177, 0.14), rgba(46, 167, 255, 0.16));
  border: 1px solid rgba(73, 220, 177, 0.22);
}

.score-card__label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}

.score-card__value {
  margin-top: 8px;
  font-size: 3rem;
  font-weight: 800;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 18px 0;
}

.metric {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 1.3rem;
}

.simple-list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.simple-list li + li {
  margin-top: 8px;
}

.shortcut-links a {
  color: var(--accent);
  text-decoration: none;
}

.shortcut-links a:hover {
  text-decoration: underline;
}

@media (max-width: 1180px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .hero__row {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .hero,
  .layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .panel {
    padding: 16px;
  }

  .field-grid,
  .score-grid {
    grid-template-columns: 1fr;
  }
}