:root {
  --bg: #09090b;
  --surface: #111114;
  --surface-2: #17171b;
  --border: #26262c;
  --border-strong: #34343c;
  --text: #e4e4e7;
  --muted: #a1a1aa;
  --faint: #71717a;
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.14);
  --error: #f87171;
  --error-soft: rgba(248, 113, 113, 0.12);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --info: #a1a1aa;
  --info-soft: rgba(161, 161, 170, 0.12);
  --pass: #4ade80;
  --radius: 12px;
  --mono:
    ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --sans:
    Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    sans-serif;
  --line: 1.6;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

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

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.05em 0.35em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- header ---------- */

.top {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 20px 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  animation: rise 0.6s var(--ease) both;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  min-width: 0;
}

.mark {
  width: 40px;
  height: 40px;
  flex: none;
  margin-top: 2px;
}

.mark rect {
  fill: var(--accent);
}

.mark path {
  fill: none;
  stroke: #fff;
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  animation: draw 0.9s 0.2s var(--ease) forwards;
}

h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 span {
  color: var(--muted);
  font-weight: 500;
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.links a {
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.9rem;
  transition:
    border-color 0.2s,
    background 0.2s,
    transform 0.2s var(--ease);
}

.links a:hover {
  text-decoration: none;
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

/* ---------- layout ---------- */

.grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 20px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  grid-template-areas:
    "editor results"
    "ci results";
  gap: 16px;
  align-items: start;
}

.editor-card {
  grid-area: editor;
}

.results-card {
  grid-area: results;
  position: sticky;
  top: 16px;
  max-height: calc(100dvh - 32px);
  display: flex;
  flex-direction: column;
}

.ci-card {
  grid-area: ci;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
  animation: rise 0.6s var(--ease) both;
}

.results-card {
  animation-delay: 0.08s;
}

.ci-card {
  animation-delay: 0.16s;
}

h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.toolbar h2 {
  margin-right: auto;
}

/* ---------- controls ---------- */

.button,
.select select,
.segmented button {
  font: inherit;
  font-size: 0.88rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 36px;
  padding: 0 12px;
  cursor: pointer;
  transition:
    border-color 0.2s,
    background 0.2s,
    color 0.2s,
    transform 0.15s var(--ease);
}

.button:hover,
.select select:hover,
.segmented button:hover {
  border-color: var(--border-strong);
}

.button:active,
.segmented button:active {
  transform: scale(0.96);
}

.button:focus-visible,
.select select:focus-visible,
.segmented button:focus-visible,
.jump:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

#share {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

#share:hover {
  background: #2f74e6;
}

.button.small {
  min-height: 28px;
  padding: 0 10px;
  font-size: 0.8rem;
}

.segmented {
  display: inline-flex;
  margin: 0;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
  background: var(--surface-2);
}

.segmented button {
  border: 0;
  background: transparent;
  min-height: 30px;
  border-radius: 6px;
  color: var(--muted);
}

.segmented button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* ---------- editor ---------- */

.editor {
  display: flex;
  height: min(62vh, 560px);
  min-height: 320px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  overflow: hidden;
  transition: border-color 0.2s;
}

.editor:focus-within {
  border-color: var(--accent);
}

.gutter,
#editor {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: var(--line);
  padding: 12px 0;
}

.gutter {
  flex: none;
  width: 3.4em;
  overflow: hidden;
  text-align: right;
  color: var(--faint);
  border-right: 1px solid var(--border);
  user-select: none;
}

.gutter span {
  display: block;
  padding: 0 10px 0 4px;
  position: relative;
  transition: color 0.25s;
}

.gutter span::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  transform: scale(0);
  transition: transform 0.3s var(--ease);
}

.gutter .mark-error,
.gutter .mark-warning,
.gutter .mark-info {
  color: var(--text);
}

.gutter .mark-error::before {
  background: var(--error);
  transform: scale(1);
}

.gutter .mark-warning::before {
  background: var(--warning);
  transform: scale(1);
}

.gutter .mark-info::before {
  background: var(--info);
  transform: scale(1);
}

#editor {
  flex: 1;
  min-width: 0;
  resize: none;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  padding-left: 12px;
  padding-right: 12px;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}

#editor::selection {
  background: rgba(59, 130, 246, 0.35);
}

.options {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 12px;
}

.options summary {
  cursor: pointer;
  padding: 10px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.options[open] summary {
  color: var(--text);
}

.option-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-bottom: 12px;
}

.option-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.option-grid small {
  color: var(--faint);
}

.option-grid input,
.option-grid textarea {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  resize: vertical;
  min-height: 36px;
}

/* ---------- results ---------- */

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.summary.bump .count.on {
  animation: pop 0.35s var(--ease);
}

.count {
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  color: var(--faint);
  transition:
    color 0.25s,
    border-color 0.25s,
    background 0.25s;
}

.count-error.on {
  color: var(--error);
  border-color: rgba(248, 113, 113, 0.45);
  background: var(--error-soft);
}

.count-warning.on {
  color: var(--warning);
  border-color: rgba(251, 191, 36, 0.45);
  background: var(--warning-soft);
}

.count-info.on {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--info-soft);
}

.verdict {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  border-left-width: 3px;
  font-size: 0.9rem;
  transition:
    border-color 0.3s,
    background 0.3s;
}

.verdict[data-status="fail"] {
  border-left-color: var(--error);
  background: var(--error-soft);
}

.verdict[data-status="warn"] {
  border-left-color: var(--warning);
  background: var(--warning-soft);
}

.verdict[data-status="pass"] {
  border-left-color: var(--pass);
  background: rgba(74, 222, 128, 0.1);
}

.findings {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  min-height: 0;
}

.finding {
  border: 1px solid var(--border);
  border-left: 3px solid var(--info);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  animation: rise 0.45s var(--ease) both;
  animation-delay: calc(var(--i, 0) * 45ms);
  transition:
    border-color 0.2s,
    transform 0.2s var(--ease);
}

.finding:hover {
  transform: translateX(2px);
}

.finding.sev-error {
  border-left-color: var(--error);
}

.finding.sev-warning {
  border-left-color: var(--warning);
}

.finding-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 4px;
}

.chip {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 5px;
  padding: 2px 6px;
  background: var(--info-soft);
  color: var(--info);
}

.sev-error .chip {
  background: var(--error-soft);
  color: var(--error);
}

.sev-warning .chip {
  background: var(--warning-soft);
  color: var(--warning);
}

.code {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
}

.alias {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.jump {
  margin-left: auto;
  font: inherit;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 8px;
  min-height: 26px;
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
}

.jump:hover {
  color: var(--text);
  border-color: var(--accent);
}

.message,
.suggestion {
  margin: 0;
  font-size: 0.88rem;
  overflow-wrap: anywhere;
}

.suggestion {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--pass);
}

.empty {
  color: var(--muted);
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
  animation: rise 0.45s var(--ease) both;
}

/* ---------- CI card ---------- */

.ci-card h2 {
  margin-bottom: 12px;
}

.snippet {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 10px;
}

.snippet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px 6px 12px;
  font-size: 0.8rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.snippet pre {
  margin: 0;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  overflow-x: auto;
  background: var(--bg);
}

.note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---------- footer ---------- */

.foot {
  max-width: 1280px;
  margin: 0 auto;
  padding: 8px 20px 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  color: var(--faint);
  font-size: 0.85rem;
}

/* ---------- motion ---------- */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pop {
  40% {
    transform: scale(1.12);
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

/* ---------- small screens ---------- */

@media (max-width: 900px) {
  .grid {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "editor"
      "results"
      "ci";
  }

  .results-card {
    position: static;
    max-height: none;
  }

  .findings {
    overflow: visible;
  }
}

@media (max-width: 560px) {
  html,
  body {
    font-size: 14px;
  }

  .top {
    padding: 20px 14px 4px;
  }

  .grid {
    padding: 12px 14px 20px;
    gap: 12px;
  }

  .card {
    padding: 12px;
  }

  .editor {
    height: 42vh;
    min-height: 260px;
  }

  .toolbar h2 {
    flex-basis: 100%;
  }

  .button,
  .select select,
  .segmented button {
    min-height: 40px;
  }

  .toolbar .select,
  .toolbar .select select {
    flex: 1;
    min-width: 0;
    width: 100%;
  }

  .option-grid {
    grid-template-columns: 1fr;
  }

  .foot {
    padding: 4px 14px 24px;
  }
}