*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --border:    #30363d;
  --text:      #e6edf3;
  --text-dim:  #8b949e;
  --accent:    #58a6ff;
  --red:       #f85149;
  --yellow:    #d29922;
  --green:     #3fb950;
  --blue:      #58a6ff;
  --mono:      "JetBrains Mono", "Fira Code", "Consolas", monospace;
  --sans:      "Inter", system-ui, -apple-system, sans-serif;
  --radius:    8px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
header { margin-bottom: 2.5rem; }

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.accent { color: var(--accent); }

.subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* ── Drop zone ──────────────────────────────────────────────────────────── */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  background: var(--surface);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(88, 166, 255, 0.04);
}

.dropzone.dragover {
  transform: scale(1.01);
}

.dropzone-icon {
  width: 40px;
  height: 40px;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
  transition: color 0.2s;
}

.dropzone:hover .dropzone-icon,
.dropzone.dragover .dropzone-icon {
  color: var(--accent);
}

.dropzone-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}

.dropzone-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ── Filename ───────────────────────────────────────────────────────────── */
.filename {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ── Results ────────────────────────────────────────────────────────────── */
.results { margin-top: 2rem; }

/* ── Summary bar ────────────────────────────────────────────────────────── */
.summary {
  display: flex;
  gap: 1.25rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  align-items: center;
}

.hero-pass {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  justify-content: center;
  padding: 0.5rem 0;
}

.hero-check {
  width: 36px;
  height: 36px;
  color: var(--green);
  flex-shrink: 0;
}

.hero-text {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: -0.01em;
}

.summary .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.summary .badge.errors   { color: var(--red); }
.summary .badge.warnings { color: var(--yellow); }
.summary .badge.passed   { color: var(--green); }

.summary .verdict {
  margin-left: auto;
  font-weight: 600;
}

.summary .verdict.clean   { color: var(--green); }
.summary .verdict.warn    { color: var(--yellow); }
.summary .verdict.fail    { color: var(--red); }

/* ── Pass sections ──────────────────────────────────────────────────────── */
.pass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.pass summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  list-style: none;
  user-select: none;
  transition: background 0.15s;
}

.pass summary::-webkit-details-marker { display: none; }

.pass summary:hover { background: rgba(255,255,255,0.02); }

.pass summary .chevron {
  transition: transform 0.2s;
  color: var(--text-dim);
  flex-shrink: 0;
}

.pass[open] summary .chevron { transform: rotate(90deg); }

.pass summary .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.pass summary .status-dot.clean   { background: var(--green); }
.pass summary .status-dot.has-warn { background: var(--yellow); }
.pass summary .status-dot.has-err  { background: var(--red); }

.pass-body {
  padding: 0 1rem 0.75rem;
}

.result-line {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.3rem 0;
  font-size: 0.82rem;
  line-height: 1.5;
  font-family: var(--mono);
  word-break: break-word;
}

.result-line .icon { flex-shrink: 0; width: 1.1em; text-align: center; }

.result-line.error   .icon { color: var(--red); }
.result-line.warning .icon { color: var(--yellow); }
.result-line.ok      .icon { color: var(--green); }
.result-line.info    .icon { color: var(--blue); }

.result-line.error   .msg { color: var(--red); }
.result-line.warning .msg { color: var(--yellow); }
.result-line.ok      .msg { color: var(--text-dim); }
.result-line.info    .msg { color: var(--text-dim); }

/* ── Skipped note ───────────────────────────────────────────────────────── */
.skipped-note {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.skipped-note code {
  font-family: var(--mono);
  background: rgba(255,255,255,0.06);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--accent);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

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

footer a:hover { text-decoration: underline; }

footer .sep {
  margin: 0 0.4rem;
  opacity: 0.4;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 520px) {
  .container { padding: 2rem 1rem 1.5rem; }
  .dropzone { padding: 2rem 1rem; }
  h1 { font-size: 1.35rem; }
  .summary { flex-wrap: wrap; gap: 0.75rem; }
}