:root {
  --bg: #1a1b26;
  --bg-surface: #24283b;
  --bg-hover: #2f3348;
  --text: #c0caf5;
  --text-dim: #565f89;
  --accent: #7aa2f7;
  --green: #9ece6a;
  --red: #f7768e;
  --yellow: #e0af68;
  --orange: #ff9e64;
  --border: #3b4261;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 12px;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.status-right {
  display: flex;
  gap: 20px;
  color: var(--text-dim);
  font-size: 12px;
}

.badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-strict { background: var(--red); color: var(--bg); }
.badge-lenient { background: var(--yellow); color: var(--bg); }
.badge-inspect { background: var(--accent); color: var(--bg); }

.count-badge {
  font-size: 11px;
  color: var(--text-dim);
  font-weight: normal;
}

main {
  padding: 16px 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 16px;
}

.panel h2 {
  font-size: 13px;
  font-weight: 600;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  cursor: default;
}

.panel-header {
  cursor: pointer !important;
  user-select: none;
}

.panel-header::after {
  content: ' \25BC';
  font-size: 10px;
  color: var(--text-dim);
}

.panel-body {
  padding: 14px;
}

.panel-body.collapsed { display: none; }

.cert-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 12px;
}

.cert-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
}

.cert-card h3 {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.cert-card .field {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: 12px;
}

.cert-card .field .label { color: var(--text-dim); }

.cert-card .actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-surface);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover { background: var(--bg-hover); }
.btn.copied { border-color: var(--green); color: var(--green); }

.curl-commands { display: flex; flex-direction: column; gap: 10px; }

.curl-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  position: relative;
}

.curl-block .label {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.curl-block code {
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 12px;
  color: var(--green);
}

.curl-block .btn-copy {
  position: absolute;
  top: 8px;
  right: 8px;
}

.split-view {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 8px 12px;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

td {
  padding: 6px 12px;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
}

tr.clickable { cursor: pointer; }
tr.clickable:hover { background: var(--bg-hover); }
tr.selected { background: var(--bg-hover); }

.result-ok { color: var(--green); }
.result-fail { color: var(--red); }

.hidden { display: none; }

#detail-content {
  padding: 14px;
}

.detail-section {
  margin-bottom: 16px;
}

.detail-section h3 {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.detail-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 4px 12px;
  font-size: 12px;
}

.detail-grid .label { color: var(--text-dim); }

.hints-list {
  list-style: none;
  padding: 0;
}

.hints-list li {
  padding: 8px 12px;
  margin-bottom: 6px;
  background: var(--bg);
  border-left: 3px solid var(--orange);
  border-radius: 0 4px 4px 0;
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .cert-cards { grid-template-columns: 1fr; }
  .status-right { flex-direction: column; gap: 4px; }
  header { flex-direction: column; gap: 8px; }
}

@media (min-width: 1024px) {
  .split-view {
    grid-template-columns: 1fr 400px;
  }
  .split-view #detail-panel.visible {
    display: block;
  }
}

/* --- Landing page --- */
.page { padding: 0; }

.landing .hero {
  text-align: center;
  padding: 60px 20px 40px;
}

.landing .hero h2 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--accent);
}

.landing .hero p {
  max-width: 560px;
  margin: 0 auto 24px;
  color: var(--text-dim);
  line-height: 1.7;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 8px 20px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-primary:hover { opacity: 0.85; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-large { padding: 10px 28px; font-size: 14px; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding: 0 20px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
}

.step strong { display: block; margin-bottom: 4px; font-size: 13px; }
.step p { color: var(--text-dim); font-size: 12px; margin: 0; }

/* --- Session page --- */
.session-page { max-width: 800px; margin: 0 auto; }

.session-header {
  padding: 20px 0;
}

.session-header h2 {
  font-size: 16px;
  margin-bottom: 8px;
}

.session-header code {
  color: var(--accent);
  font-size: 15px;
}

.session-meta {
  display: flex;
  gap: 20px;
  color: var(--text-dim);
  font-size: 12px;
}

.help-text {
  color: var(--text-dim);
  font-size: 12px;
  margin-bottom: 12px;
  line-height: 1.6;
}

.pem-block {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
}

.pem-block pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 11px;
  color: var(--green);
  max-height: 120px;
  overflow-y: auto;
  margin: 0;
}

.pem-block .btn-copy {
  position: absolute;
  top: 8px;
  right: 8px;
}

.url-form {
  display: flex;
  gap: 8px;
}

.url-form input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
}

.url-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.feedback {
  font-size: 12px;
  margin-top: 8px;
  min-height: 18px;
}

.feedback-ok { color: var(--green); }
.feedback-err { color: var(--red); }

.empty-state {
  padding: 20px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
}

.error-box {
  padding: 20px;
  text-align: center;
  color: var(--red);
}

.error-box a { color: var(--accent); }

.url-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.call-detail td {
  padding: 12px;
  background: var(--bg);
}

.session-loading {
  padding: 40px;
  text-align: center;
  color: var(--text-dim);
}

.test-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.test-help { margin-top: 0; }

.btn-danger {
  padding: 8px 16px;
  border: 1px solid var(--red);
  border-radius: 4px;
  background: transparent;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-danger:hover { background: rgba(247, 118, 142, 0.1); }
.btn-danger:disabled { opacity: 0.5; cursor: not-allowed; }

.mode-normal { color: var(--green); }
.mode-negative { color: var(--yellow); }