:root {
  --bg: #0a0f0d;
  --bg-card: #0f1613;
  --border: #1d2b26;
  --text: #e6ede9;
  --text-dim: #8a9a93;
  --accent: #2dd4bf;
  --accent-dim: #1b8a7c;
  --up: #34d399;
  --down: #f87171;
  --local: #64748b;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top left, #0e1a16, var(--bg) 60%);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 2rem 2rem 1rem;
}

.brand { display: flex; gap: 0.9rem; align-items: center; }

.brand-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1.3rem;
  color: var(--accent);
}

.brand h1 { margin: 0; font-size: 1.4rem; font-weight: 700; }
.accent { color: var(--accent); }
.meta { margin: 0.15rem 0 0; color: var(--text-dim); font-size: 0.85rem; font-family: var(--font-mono); }

.greeting { text-align: right; }
.greeting-text { margin: 0; font-size: 1.2rem; font-weight: 600; }

.tabs {
  display: flex;
  gap: 1.5rem;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.tab {
  background: none;
  border: none;
  color: var(--text-dim);
  font: inherit;
  font-weight: 600;
  padding: 0.6rem 0.1rem 0.8rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 0 2rem 3rem; }

.group h2 {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 1.6rem 0 0.9rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-top { display: flex; align-items: center; gap: 0.4rem; }

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--local);
}
.dot.up { background: var(--up); box-shadow: 0 0 6px var(--up); }
.dot.down { background: var(--down); box-shadow: 0 0 6px var(--down); }

.dot-label { font-size: 0.75rem; color: var(--text-dim); font-family: var(--font-mono); }

.card h3 { margin: 0; font-size: 1.05rem; }
.card p { margin: 0; color: var(--text-dim); font-size: 0.9rem; line-height: 1.4; flex-grow: 1; }

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.4rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border);
}

.card-bottom code { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-dim); }

footer { padding: 1rem 2rem 2rem; text-align: center; }
footer a { color: var(--text-dim); font-size: 0.85rem; }

/* --- Login --- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 2.2rem;
  width: 100%;
  max-width: 340px;
  text-align: center;
}

.login-card h1 { margin: 0 0 0.3rem; }
.subtitle { color: var(--text-dim); margin: 0 0 1.5rem; font-size: 0.9rem; }

.login-card form { display: flex; flex-direction: column; gap: 1rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.4rem; text-align: left; font-size: 0.85rem; color: var(--text-dim); }

.login-card input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  color: var(--text);
  font: inherit;
}
.login-card input:focus { outline: 1px solid var(--accent); }

.login-card button {
  background: var(--accent);
  color: #06201b;
  border: none;
  border-radius: 8px;
  padding: 0.7rem;
  font-weight: 700;
  cursor: pointer;
}
.login-card button:hover { background: var(--accent-dim); }

.error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: var(--down);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
}