/* Internet Down Detector — self-contained styles (no external assets). */

:root {
  --bg: #0e1116;
  --bg-elev: #171c24;
  --bg-elev2: #1f2630;
  --border: #2a313c;
  --text: #e6eaf0;
  --muted: #8b96a5;

  --up: #2ecc71;
  --degraded: #f1c40f;
  --unknown: #7f8c8d;
  --dns: #e67e22;
  --down: #e74c3c;
  --isp: #e74c3c;
  --local: #9b59b6;
  --pending: #5a6472;
  --accent: var(--up);
  --blue: #4aa3ff;

  font-synthesis: none;
}

* { box-sizing: border-box; }
/* The `hidden` attribute must win over class display rules (.modal{display:flex},
   .btn{display:inline-block}, label{display:block}); author rules otherwise
   override the UA [hidden]{display:none}, leaving modals/fields stuck visible. */
[hidden] { display: none !important; }
html, body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px; line-height: 1.45;
}
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 1.05rem; }
h2 { font-size: 0.98rem; }
h3.sub { font-size: 0.9rem; margin: 16px 0 8px; color: var(--muted); }
a { color: var(--blue); text-decoration: none; }
.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.warn { color: var(--degraded); }
.spacer { flex: 1; }
.row { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.form-row { display: flex; gap: 12px; }
.form-row > label { flex: 1; }

/* ---- buttons / inputs ---- */
.btn {
  background: var(--bg-elev2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 12px; font-size: 0.85rem; cursor: pointer; text-decoration: none;
  display: inline-block;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #0e1116; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--down); border-color: color-mix(in srgb, var(--down) 50%, var(--border)); }
.linkbtn { background: none; border: none; color: var(--blue); cursor: pointer; font-size: 0.82rem; padding: 0; }
.linkbtn.danger { color: var(--down); }
.linkbtn + .linkbtn { margin-left: 10px; }
.iconbtn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 1.1rem; line-height: 1; }
.iconbtn:hover { color: var(--text); }

input, select {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 0.9rem; font-family: inherit;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 10px; }
label input, label select { margin-top: 4px; }
label.checkbox { display: flex; align-items: center; gap: 8px; color: var(--text); }
label.checkbox input { width: auto; margin: 0; }

/* ---- topbar ---- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--bg-elev); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-link { color: var(--text); }
.brand-dot {
  width: 12px; height: 12px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); transition: background .3s, box-shadow .3s;
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.clock { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 0.9rem; }
.conn { font-size: 0.78rem; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); }
.conn.ok { color: var(--up); }
.conn.bad { color: var(--down); border-color: color-mix(in srgb, var(--down) 50%, var(--border)); }

main { max-width: 1100px; margin: 0 auto; padding: 20px; }
main.narrow { max-width: 760px; }
.page-title { font-size: 1.3rem; margin-bottom: 16px; }

/* ---- auth pages ---- */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; padding: 28px; width: 100%; max-width: 380px; }
.auth-card.wide { max-width: 640px; }
.auth-brand { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.auth-card h1 { font-size: 1.4rem; margin-bottom: 6px; }
.auth-sub { color: var(--muted); font-size: 0.88rem; margin: 0 0 18px; }
.auth-form label { color: var(--text); }
.auth-form .btn { width: 100%; margin-top: 6px; padding: 10px; }
.auth-form.tight .btn { width: auto; }
.auth-error { margin-top: 14px; padding: 9px 12px; border-radius: 8px; background: color-mix(in srgb, var(--down) 18%, var(--bg-elev)); color: #ffd7d2; font-size: 0.85rem; }
.auth-ok { margin-top: 14px; padding: 9px 12px; border-radius: 8px; background: color-mix(in srgb, var(--up) 18%, var(--bg-elev)); color: #d6ffe5; font-size: 0.85rem; }

.enroll-grid { display: flex; gap: 22px; flex-wrap: wrap; }
.qr-box { background: #fff; padding: 10px; border-radius: 10px; width: 200px; height: 200px; display: flex; align-items: center; justify-content: center; }
.qr-box img { width: 100%; height: 100%; image-rendering: pixelated; }
.enroll-side { flex: 1; min-width: 220px; }
.secret { display: block; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-family: ui-monospace, monospace; letter-spacing: 1px; margin: 6px 0 14px; word-break: break-all; }
.backup-codes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin: 14px 0; }
.backup-codes span { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px; text-align: center; font-family: ui-monospace, monospace; letter-spacing: 1px; }
.tag { font-size: 0.7rem; background: var(--bg-elev2); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; color: var(--muted); }

/* ---- banner ---- */
.banner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 26px; border-radius: 14px; cursor: pointer;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 22%, var(--bg-elev)), var(--bg-elev));
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border)); transition: background .4s, border-color .4s;
}
.banner-state { font-size: 1.9rem; font-weight: 700; color: var(--accent); }
.banner-sub { color: var(--muted); margin-top: 4px; font-size: 0.92rem; }
.banner-right { text-align: right; }
.banner-since-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.banner-since { font-size: 1.0rem; font-variant-numeric: tabular-nums; }
.subprobes { margin-top: 10px; }

/* ---- cards ---- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 16px; }
.detail-cards { grid-template-columns: repeat(3, 1fr); margin-top: 0; margin-bottom: 12px; }
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.card-label { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.card-value { font-size: 1.6rem; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.card-foot { font-size: 0.76rem; color: var(--muted); margin-top: 2px; min-height: 1em; }

/* ---- panels / toolbar ---- */
.panel { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-top: 16px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; margin-bottom: 6px; }

/* ---- monitor grid ---- */
.monitor-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.empty { color: var(--muted); padding: 26px; text-align: center; border: 1px dashed var(--border); border-radius: 12px; }
.mcard {
  background: var(--bg-elev); border: 1px solid var(--border); border-left: 4px solid var(--accent);
  border-radius: 12px; padding: 14px; cursor: pointer; transition: border-color .2s, transform .05s;
}
.mcard:hover { border-color: var(--accent); }
.mcard:active { transform: translateY(1px); }
.mcard-top { display: flex; align-items: center; justify-content: space-between; }
.mcard-name { font-weight: 600; margin-top: 8px; }
.mcard-meta { color: var(--muted); font-size: 0.8rem; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mcard-stats { display: flex; justify-content: space-between; margin-top: 10px; font-variant-numeric: tabular-nums; }

/* ---- badges (per state) ---- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.74rem; font-weight: 600; color: #0e1116; }
.badge.s-UP { background: var(--up); }
.badge.s-DEGRADED { background: var(--degraded); }
.badge.s-UNKNOWN { background: var(--unknown); color: #fff; }
.badge.s-DNS_FAIL { background: var(--dns); color: #fff; }
.badge.s-DOWN { background: var(--down); color: #fff; }
.badge.s-ISP_DOWN { background: var(--isp); color: #fff; }
.badge.s-LOCAL_DOWN { background: var(--local); color: #fff; }
.badge.s-PENDING { background: var(--pending); color: #fff; }

/* ---- timeline / chart / tables ---- */
.timeline { display: flex; width: 100%; height: 20px; border-radius: 6px; overflow: hidden; background: var(--bg-elev2); border: 1px solid var(--border); margin-bottom: 12px; }
.timeline .seg { flex: 1 1 auto; min-width: 0; }
.chart-wrap { position: relative; height: 280px; }

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.ptable td, .otable td, .otable th { padding: 7px 8px; border-bottom: 1px solid var(--border); text-align: left; }
.otable th { color: var(--muted); font-weight: 600; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.5px; }
.otable-wrap { max-height: 340px; overflow: auto; }
.otable-wrap.short { max-height: 200px; }
.pname { display: flex; align-items: center; gap: 8px; }
.pdot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.pdot.ok { background: var(--up); } .pdot.bad { background: var(--down); }
.pscope { font-size: 0.7rem; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; }
.platency { text-align: right; font-variant-numeric: tabular-nums; }
.perr { color: var(--down); font-size: 0.8rem; }
.odetail { color: var(--muted); font-size: 0.82rem; max-width: 280px; }
.ongoing-tag { color: var(--down); font-size: 0.74rem; font-weight: 600; }
.useractions { white-space: nowrap; }

.foot { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 18px; }

/* ---- modal ---- */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; padding: 22px; width: 100%; max-width: 440px; max-height: 90vh; overflow: auto; }
.modal-card.large { max-width: 860px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.windowtabs { display: flex; gap: 4px; }
.windowtabs button { background: transparent; border: 1px solid var(--border); color: var(--muted); padding: 4px 10px; border-radius: 7px; font-size: 0.82rem; cursor: pointer; }
.windowtabs button.active { background: var(--bg-elev2); color: var(--text); border-color: var(--accent); }

/* ---- per-state theming ---- */
.state-UP { --accent: var(--up); }
.state-DEGRADED { --accent: var(--degraded); }
.state-UNKNOWN { --accent: var(--unknown); }
.state-DNS_FAIL { --accent: var(--dns); }
.state-DOWN { --accent: var(--down); }
.state-ISP_DOWN { --accent: var(--isp); }
.state-LOCAL_DOWN { --accent: var(--local); }
.state-PENDING { --accent: var(--pending); }

@media (max-width: 820px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .banner-state { font-size: 1.5rem; }
  .topbar { flex-wrap: wrap; gap: 8px; }
}