:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1b2330;
  --muted: #647084;
  --line: #e3e6ec;
  --accent: #1f5eff;
  --accent-text: #ffffff;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --card: #1a1f28;
    --text: #e8ebf1;
    --muted: #93a0b5;
    --line: #2a313d;
    --accent: #5b8cff;
    --accent-text: #0b1020;
  }
}
* { box-sizing: border-box; }
/* Author display rules (e.g. .login { display: grid }) must not beat the hidden attribute. */
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 12px; }
.muted { color: var(--muted); margin: 0; }
.small { font-size: 13px; }
.grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }
.stack { display: grid; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 6px 8px; }
td { padding: 10px 8px; border-top: 1px solid var(--line); vertical-align: middle; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
tbody tr.sel { background: color-mix(in srgb, var(--accent) 12%, transparent); }
td small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }

.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.pill.not-called { background: #e8ebf1; color: #4a5568; }
.pill.calling { background: #dbe7ff; color: #1b45b8; animation: pulse 1.4s ease-in-out infinite; }
.pill.confirmed { background: #d9f5e3; color: #11703a; }
.pill.needs-staff { background: #ffecc7; color: #8a5600; }
.pill.retry-later { background: #ecdcff; color: #5b2aa0; }
.pill.no-answer { background: #ffdede; color: #a02727; }
.pill.left-message { background: #d3f3f1; color: #0b6b66; }
@media (prefers-color-scheme: dark) {
  .pill.not-called { background: #2a313d; color: #c4cddb; }
  .pill.calling { background: #1f3570; color: #cddcff; }
  .pill.confirmed { background: #17432c; color: #a6edc4; }
  .pill.needs-staff { background: #4d3a12; color: #ffdd99; }
  .pill.retry-later { background: #3b2866; color: #dcc8ff; }
  .pill.no-answer { background: #4d2020; color: #ffc4c4; }
  .pill.left-message { background: #11403d; color: #a4ece6; }
}
@keyframes pulse { 50% { opacity: .55; } }

label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 4px; }
select, input {
  width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--text); font: inherit;
}
button { font: inherit; border-radius: 8px; padding: 9px 14px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; }
button.primary { width: 100%; margin-top: 16px; background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.ghost { background: transparent; }
button.small { font-size: 13px; padding: 6px 10px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.live { margin: 12px 0 0; font-weight: 600; min-height: 1.2em; }
.msg { margin: 8px 0 0; color: #c0392b; min-height: 1.2em; }
.log { list-style: none; margin: 0; padding: 0; max-height: 340px; overflow-y: auto; }
.log li { padding: 7px 0; border-top: 1px solid var(--line); font-size: 14px; }
.log li:first-child { border-top: 0; }
.log time { color: var(--muted); font-size: 12px; margin-right: 8px; }
footer { margin-top: 24px; }
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .card { width: 100%; max-width: 360px; }