/* SSL & TLS Expiry Radar - Dark theme */
:root {
  --bg: #0e1116;
  --bg-elev: #151a21;
  --text: #e6edf3;
  --muted: #9aa4b2;
  --border: #242a33;
  --accent: #61a4ff;
  --accent-2: #3b82f6;
  --ok: #22c55e;
  --warn: #f59e0b;
  --urgent: #ef4444;
  --error: #f97316;
  --focus: #a5b4fc;
  --shadow: 0 10px 24px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }

.app-header { border-bottom: 1px solid var(--border); background: linear-gradient(180deg, rgba(14,17,22,.88), rgba(14,17,22,.72)); backdrop-filter: saturate(120%) blur(10px); position: sticky; top: 0; z-index: 5; }
.header-grid { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 32px; height: 32px; }
.app-title { font-size: 18px; margin: 0; }
.app-tagline { margin: 2px 0 0 0; color: var(--muted); font-size: 13px; }
.actions { display: flex; gap: 8px; }

.btn { appearance: none; border: 1px solid var(--border); color: var(--text); background: var(--bg-elev); padding: 10px 14px; border-radius: 10px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: transform .05s ease, background .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-1px); border-color: #2d3541; }
.btn.primary { background: linear-gradient(180deg, var(--accent), var(--accent-2)); color: #081224; border-color: transparent; }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 12px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); padding: 16px; margin: 16px 0; }
.card h2 { margin: 0 0 10px 0; font-size: 18px; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.col-2 { grid-column: span 2; }
.field.end { align-items: flex-start; gap: 10px; }
label { font-weight: 600; font-size: 13px; color: var(--muted); }
input[type="text"], input[type="url"], input[type="email"], input[type="number"], select, textarea {
  width: 100%; background: #0c0f14; border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 10px 12px; outline: none; box-shadow: inset 0 2px 0 rgba(0,0,0,.25);
}
textarea { min-height: 120px; resize: vertical; }
.checkbox { display: flex; align-items: center; gap: 8px; margin-top: 26px; }
small { color: var(--muted); }

.alert { border: 1px solid var(--border); padding: 10px 12px; border-radius: 10px; margin: 12px 0; }
.alert.error { border-color: var(--urgent); background: rgba(239,68,68,.08); }
.alert.warn { border-color: var(--warn); background: rgba(245,158,11,.08); }
.alert.notice { border-color: var(--accent); background: rgba(59,130,246,.08); }
.alert ul { margin: 8px 0 0 16px; }

.layout { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.left, .right { min-width: 0; }

.grid.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.kv { list-style: none; padding: 0; margin: 10px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; }
.kv li { display: contents; }
.kv li > span:first-child { color: var(--muted); }
.muted { color: var(--muted); }
.muted.small { font-size: 12px; }
.badge { padding: 4px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); background: #0c1117; }
.badge.ok { color: var(--ok); border-color: rgba(34,197,94,.35); }
.badge.warn { color: var(--warn); border-color: rgba(245,158,11,.35); }
.badge.urgent { color: var(--urgent); border-color: rgba(239,68,68,.35); }
.badge.error { color: var(--error); border-color: rgba(249,115,22,.35); }
.error-line { color: var(--error); font-size: 12px; margin-top: 6px; }
.result-actions { display: flex; justify-content: flex-end; }

.history { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.history li { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.empty { color: var(--muted); font-style: italic; padding: 8px; }

.app-footer { padding: 24px 16px 40px; color: var(--muted); }

/* Responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .field.col-2 { grid-column: auto; }
}

/* Focus styles for accessibility */
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }