/* Page Pulse — styled like a signal/diagnostic readout, fitting an
   audit tool that "listens" to a page and reports back a pulse. */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0b0e11;
  --bg-panel: #12161b;
  --line: #232a31;
  --pulse: #4de8b0;       /* signal green accent */
  --pulse-dim: #2f8f6c;
  --text: #e6ebef;
  --text-dim: #8b98a5;
  --error: #ff6b6b;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
}

body {
  background-image:
    radial-gradient(circle at 15% -10%, rgba(77, 232, 176, 0.08), transparent 40%),
    repeating-linear-gradient(180deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
  min-height: 100vh;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 40px;
}

header {
  margin-bottom: 36px;
  position: relative;
}

header h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 2.4rem;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--text);
}

header h1::before {
  content: "● ";
  color: var(--pulse);
  animation: blink 2.4s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.subtitle {
  color: var(--text-dim);
  font-size: 0.98rem;
  line-height: 1.5;
  max-width: 52ch;
  margin: 0;
}

.audit-form {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

#url-input {
  flex: 1;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#url-input::placeholder { color: #4a5560; }

#url-input:focus {
  border-color: var(--pulse-dim);
  box-shadow: 0 0 0 3px rgba(77, 232, 176, 0.12);
}

#analyze-btn {
  background: var(--pulse);
  color: #06110c;
  border: none;
  border-radius: 6px;
  padding: 0 26px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
  white-space: nowrap;
}

#analyze-btn:hover { background: #63f0c1; }
#analyze-btn:active { transform: scale(0.97); }
#analyze-btn:disabled {
  background: var(--pulse-dim);
  cursor: not-allowed;
  opacity: 0.7;
}

#analyze-btn:focus-visible,
#url-input:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

.status-area {
  min-height: 22px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.status-area .loading {
  color: var(--pulse);
}

.status-area .loading::after {
  content: '';
  display: inline-block;
  width: 6px;
}

.status-area .error {
  color: var(--error);
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.25);
  border-radius: 6px;
  padding: 10px 14px;
  display: block;
  margin-top: 6px;
}

.report {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 24px;
}

.report.hidden { display: none; }

.card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card.wide { grid-column: 1 / -1; }

.card .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
}

.card .value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text);
  word-break: break-word;
  line-height: 1.4;
}

.card .value.good { color: var(--pulse); }
.card .value.warn { color: #f5c563; }
.card .value.bad { color: var(--error); }

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--text-dim);
  text-align: center;
}

footer a {
  color: var(--pulse-dim);
  text-decoration: none;
  border-bottom: 1px dotted var(--pulse-dim);
}

footer a:hover { color: var(--pulse); }

@media (max-width: 560px) {
  .wrap { padding: 40px 18px 32px; }
  header h1 { font-size: 1.9rem; }
  .audit-form { flex-direction: column; }
  .report { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  header h1::before { animation: none; }
}