/* agent-a readiness scanner — minimal, professional */

:root {
  --bg: #0a0a0f;
  --surface: #141419;
  --border: #23232d;
  --text: #e4e4e7;
  --text-muted: #8b8b96;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --orange: #f97316;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 16px;
}

/* Top nav */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 0.4rem 1rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: 6px;
  font-weight: 500;
}
.nav-cta:hover { background: var(--accent-hover); }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

header { margin-bottom: 2rem; }

h1 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.subtitle {
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  display: inline-block;
  margin-bottom: 0.5rem;
}
.back-link:hover { color: var(--text); }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

/* Scan form */
.scan-form { margin-top: 1.25rem; }
.scan-form label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.input-hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.input-hint code {
  background: var(--bg);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.9rem;
}

.input-row {
  display: flex;
  gap: 0.5rem;
}

.input-row input {
  flex: 1;
  padding: 0.65rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
}
.input-row input:focus {
  outline: none;
  border-color: var(--accent);
}

.input-row button, .btn-pay {
  padding: 0.65rem 1.5rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.input-row button:hover, .btn-pay:hover {
  background: var(--accent-hover);
}

.note {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

.error-msg {
  background: rgba(239,68,68,0.12);
  color: var(--red);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 6px;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

/* Score display */
.score-card { text-align: center; }
.score-display { margin-bottom: 0.5rem; }
.score-number {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.score-label {
  font-size: 1.25rem;
  color: var(--text-muted);
}
.score-good { color: var(--green); }
.score-ok { color: var(--yellow); }
.score-bad { color: var(--red); }

.headline {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.meta-row {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Results table */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.results-table th {
  text-align: left;
  padding: 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 500;
}
.results-table td {
  padding: 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.detail-cell { font-size: 0.9rem; color: var(--text-muted); }

/* Severity badges */
.sev {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
}
.sev-critical { color: var(--red); background: rgba(239,68,68,0.15); }
.sev-high { color: var(--orange); background: rgba(251,146,60,0.15); }
.sev-medium { color: var(--yellow); background: rgba(250,204,21,0.12); }
.sev-low { color: var(--text-muted); background: rgba(139,139,150,0.1); }

/* Verdict badges */
.verdict {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.verdict-badge-pass { background: rgba(34,197,94,0.15); color: var(--green); }
.verdict-badge-fail { background: rgba(239,68,68,0.15); color: var(--red); }
.verdict-badge-unknown { background: rgba(139,139,150,0.15); color: var(--text-muted); }
.confidence { font-size: 0.75rem; padding: 0.15rem 0.4rem; border-radius: 3px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.03em; }
.confidence-observed { background: rgba(96,165,250,0.12); color: #60a5fa; }
.confidence-estimated { background: rgba(234,179,8,0.12); color: #eab308; }

/* Row tinting */
tr.verdict-fail { background: rgba(239,68,68,0.04); }

/* Paywall */
.paywall-card {
  border-color: var(--accent);
  text-align: center;
}
.paywall-card ul {
  text-align: left;
  display: inline-block;
  margin: 0.75rem 0 1.25rem;
  padding-left: 1.25rem;
}
.paywall-card li {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
}
.btn-pay {
  font-size: 1.05rem;
  padding: 0.75rem 2.5rem;
}

/* How it works grid */
.how-it-works { margin-top: 1.5rem; }
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.check-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}
.check-num {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}
.check-item strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.check-item > span {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.check-tier {
  display: block;
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #4ade80;
  letter-spacing: 0.03em;
}
.check-tier-paid {
  color: #a78bfa;
}

footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Intel section */
.intel-card { border-color: #2d2d6b; }
.intel-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.intel-section {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.intel-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--accent);
}
.intel-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.3rem 0;
  font-size: 0.875rem;
  gap: 1rem;
}
.intel-label {
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 120px;
}
.intel-value { text-align: right; }
.intel-warn { color: var(--red); }

.agent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.agent-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  border-radius: 5px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
}
.agent-name { font-weight: 500; }
.agent-status {
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.agent-allowed { border-color: rgba(34,197,94,0.3); }
.agent-allowed .agent-status { color: var(--green); }
.agent-blocked { border-color: rgba(239,68,68,0.3); }
.agent-blocked .agent-status { color: var(--red); }
.agent-partial .agent-status { color: var(--yellow); }

.intel-summary {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.intel-point {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.2rem 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--border);
  margin-bottom: 0.3rem;
}

/* Check blocks (replaces table rows) */
.check-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.6rem;
  overflow: hidden;
}
.check-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  flex-wrap: wrap;
}
.verdict-icon {
  font-size: 1rem;
  font-weight: 700;
  width: 1.4rem;
  text-align: center;
  flex-shrink: 0;
}
.check-pass .verdict-icon { color: var(--green); }
.check-fail .verdict-icon { color: var(--red); }
.check-unknown .verdict-icon { color: var(--text-muted); }
.check-id {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  min-width: 55px;
}
.check-title {
  flex: 1;
  font-size: 1rem;
}
.check-fail { border-color: rgba(239,68,68,0.2); }
.check-unknown { border-color: rgba(139,139,150,0.2); }
.check-pass { border-color: rgba(34,197,94,0.1); }

.check-detail {
  padding: 0 0.85rem 0.85rem;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}
.check-row {
  display: flex;
  gap: 0.75rem;
  padding: 0.3rem 0;
  font-size: 0.95rem;
  align-items: baseline;
}
.check-label {
  color: var(--text-muted);
  min-width: 140px;
  font-weight: 500;
  flex-shrink: 0;
}
.check-impact { color: var(--yellow); font-size: 0.9rem; }
.check-impact span { color: var(--text); }

.sample-list code {
  background: var(--bg);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.9rem;
  margin-right: 0.25rem;
  display: inline-block;
  margin-bottom: 0.2rem;
}

/* Fix recipes */
.fix-block {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: rgba(99,102,241,0.06);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 6px;
}
.fix-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.fix-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
}
.fix-instruction {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.fix-code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.65rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
}
.fix-code code {
  white-space: pre;
  font-family: 'Consolas', 'Monaco', monospace;
}
.btn-copy {
  padding: 0.3rem 0.7rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 500;
}
.btn-copy:hover { background: var(--accent-hover); }

/* Intel improvements */
.intel-card-inner {
  padding: 0.5rem 0.65rem;
  background: var(--bg);
  border-radius: 6px;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}
.intel-card-inner strong { font-size: 1rem; }
.intel-impact {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}
.intel-detail {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}
.intel-explain {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.intel-warning {
  margin-top: 0.75rem;
  padding: 0.65rem;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: 6px;
  color: var(--red);
  font-size: 0.9rem;
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Layer bars (shareable results) */
.layer-bar { margin-bottom: 1rem; }
.layer-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.3rem;
}
.layer-bar-label { font-size: 0.875rem; font-weight: 500; }
.layer-bar-pct { font-size: 0.9rem; color: var(--text-muted); }
.bar-track {
  height: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}
.bar-fill-good { background: var(--green); }
.bar-fill-ok { background: var(--yellow); }
.bar-fill-bad { background: var(--red); }

/* Share button */
.btn-share {
  padding: 0.55rem 1.5rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 500;
}
.btn-share:hover { border-color: var(--accent); }

/* Hero lead text */
.hero-lead {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Stats row */
.stat-row {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.stat-sub {
  font-size: 0.8rem;
  color: #a78bfa;
  margin-top: 0.2rem;
}

/* Steps */
.steps { display: flex; flex-direction: column; gap: 1rem; }
.step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
}
.step strong { display: block; margin-bottom: 0.2rem; }
.step p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

/* Agent tags */
.agent-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.agent-tag {
  padding: 0.35rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 0.25rem; }
.faq details {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.faq summary {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.faq details[open] summary::after {
  content: '-';
}
.faq details p {
  padding: 0 1rem 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 600px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .input-row { flex-direction: column; }
  .score-number { font-size: 2.75rem; }
  .meta-row { flex-direction: column; gap: 0.25rem; }
  .stat-row { gap: 1rem; }
  .steps { gap: 0.75rem; }
}