:root {
  --bg:      #0b1220;
  --bg-2:    #0f1729;
  --text:    #e2e8f0;
  --mute:    #94a3b8;
  --border:  rgba(148, 163, 184, 0.18);
  --ok:      #22c55e;
  --warn:    #f59e0b;
  --bad:     #ef4444;
  --accent:  #4da3ff;
  --state:   var(--mute);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

body.state-ok      { --state: var(--ok); }
body.state-warn    { --state: var(--warn); }
body.state-bad     { --state: var(--bad); }
body.state-bad     { background: radial-gradient(circle at 50% 30%, rgba(239,68,68,0.12), var(--bg) 60%); }
body.state-warn    { background: radial-gradient(circle at 50% 30%, rgba(245,158,11,0.10), var(--bg) 60%); }
body.state-ok      { background: radial-gradient(circle at 50% 30%, rgba(34,197,94,0.10), var(--bg) 60%); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { color: #93c5fd; font-size: 0.95em; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--mute);
}
.brand { display: flex; align-items: center; gap: 0.5rem; }
.brand-mark {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 7px;
  background: var(--accent);
  color: #0b1220;
  font-weight: 800;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.95rem;
  letter-spacing: -0.04em;
}
.brand-text { color: #f1f5f9; font-weight: 600; letter-spacing: 0.01em; }
.topbar-meta { font-style: italic; }
@media (max-width: 600px) { .topbar-meta { display: none; } }

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  max-width: 720px;
  margin: 0 auto;
}

.hero-question {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--mute);
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--mute);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}
.hero-sub code { color: var(--accent); }

/* mate animado */
.mate {
  width: clamp(110px, 22vw, 160px);
  margin: 0 auto 1.5rem;
  color: var(--state);
  transition: transform 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.mate svg { display: block; width: 100%; height: auto; }
.mate .humo { opacity: 0; transform-origin: center; }
body.state-ok   .mate .humo { opacity: 1; animation: humo 3s ease-in-out infinite; }
body.state-warn .mate         { animation: tiembla 0.8s ease-in-out infinite; }
body.state-bad  .mate         { transform: rotate(-22deg) translateY(8px); }

@keyframes humo {
  0%   { opacity: 0;   transform: translateY(0) scale(1); }
  50%  { opacity: 0.8; transform: translateY(-6px) scale(1.05); }
  100% { opacity: 0;   transform: translateY(-12px) scale(1.1); }
}
@keyframes tiembla {
  0%, 100% { transform: translateX(0) rotate(0); }
  25%      { transform: translateX(-2px) rotate(-1.5deg); }
  75%      { transform: translateX(2px)  rotate(1.5deg); }
}

/* respuesta gigante */
.answer {
  font-size: clamp(3.5rem, 11vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--state);
  margin: 0 0 0.75rem;
  text-shadow: 0 0 40px color-mix(in srgb, var(--state) 30%, transparent);
  transition: color 250ms ease;
}

.quip {
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  color: var(--text);
  font-weight: 400;
  margin: 0 0 2rem;
  min-height: 1.5em;
}

/* meta line */
.meta-line {
  font-size: 0.85rem;
  color: var(--mute);
  font-variant-numeric: tabular-nums;
  margin-bottom: 2rem;
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0.5rem;
}
.meta-line .dot { opacity: 0.5; }
.link-btn {
  background: transparent; border: 0; padding: 0;
  color: var(--accent); font: inherit; cursor: pointer;
}
.link-btn:hover { text-decoration: underline; }

/* botones principales */
.actions {
  display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap;
}
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 100ms ease, background 200ms ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: #25d366; /* WhatsApp green */
  color: #052a13;
}
.btn-primary:hover { transform: translateY(-1px); background: #2bdc6e; }
.btn-ghost {
  background: transparent;
  color: var(--mute);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--mute); }

/* ---------- Detalles ---------- */
.details {
  max-width: 720px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}
.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.metric {
  border-left: 2px solid var(--border);
  padding-left: 0.7rem;
}
.m-label {
  font-size: 0.7rem; text-transform: uppercase; color: var(--mute);
  letter-spacing: 0.06em;
}
.m-val {
  font-size: 1.5rem; font-weight: 600; line-height: 1;
  font-variant-numeric: tabular-nums;
  margin-top: 0.2rem;
}
.m-unit { font-size: 0.7rem; color: var(--mute); }

.histo-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}
.histo-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.75rem; flex-wrap: wrap; gap: 0.5rem;
}
.range-tabs { display: flex; gap: 0.25rem; }
.range-btn {
  background: transparent; border: 1px solid var(--border);
  color: var(--mute); padding: 0.25rem 0.6rem;
  border-radius: 6px; font-size: 0.8rem; cursor: pointer;
}
.range-btn:hover { color: var(--text); }
.range-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* histograma de barras (estilo GitHub uptime) */
.bars {
  display: flex; gap: 2px; height: 36px; align-items: flex-end;
  margin: 0.5rem 0;
}
.bars .bar {
  flex: 1 1 auto;
  min-width: 3px;
  border-radius: 1px;
  transition: opacity 150ms ease;
  cursor: pointer;
}
.bars .bar.ok   { background: var(--ok);   opacity: 0.85; }
.bars .bar.warn { background: var(--warn); opacity: 0.85; }
.bars .bar.bad  { background: var(--bad);  opacity: 0.95; }
.bars .bar.empty{ background: var(--border); opacity: 0.4; }
.bars .bar:hover { opacity: 1; }

.histo-foot {
  font-size: 0.85rem;
  color: var(--mute);
  font-variant-numeric: tabular-nums;
  margin-top: 0.5rem;
}
.histo-foot #uptimePct { color: var(--text); font-weight: 600; }

.endpoint-line {
  text-align: center;
  font-size: 0.8rem;
  color: var(--mute);
  margin-top: 1.5rem;
  word-break: break-all;
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--mute);
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
}