@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ========================================================================
   Theme tokens - glassmorphism, dark (default) + light, toggled via
   [data-theme] on <html>. Accent colors are "soft multicolor": each metric
   family (CPU, RAM, disk, network, load...) gets its own pastel hue, used
   consistently across cards, chart lines and small indicator dots.
   ========================================================================= */
:root {
  /* dark (default) surface + text */
  --page-bg-1: #0b0f1f;
  --page-bg-2: #141233;
  --text: #EDEFF7;
  --text-dim: #9CA3B8;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-strong: rgba(255, 255, 255, 0.10);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-shine: rgba(255, 255, 255, 0.25);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --input-bg: rgba(255, 255, 255, 0.07);

  /* status */
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #fb7185;

  /* soft multicolor accents, shared by both themes */
  --c-cpu: #818cf8;
  --c-ram: #c084fc;
  --c-swap: #f472b6;
  --c-disk: #fbbf24;
  --c-net-down: #2dd4bf;
  --c-net-up: #38bdf8;
  --c-load: #fb7185;
  --c-temp: #fb923c;
  --c-uptime: #a3e635;
}

:root[data-theme='light'] {
  --page-bg-1: #eef2ff;
  --page-bg-2: #fdf2f8;
  --text: #1f2440;
  --text-dim: #6b7094;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-shine: rgba(255, 255, 255, 0.9);
  --shadow: 0 8px 32px rgba(99, 102, 241, 0.14);
  --input-bg: rgba(255, 255, 255, 0.6);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  transition: color 0.3s ease;
}

body {
  background-color: var(--page-bg-1);
  background-image:
    radial-gradient(38% 32% at 10% 8%, color-mix(in srgb, var(--c-cpu) 35%, transparent) 0%, transparent 70%),
    radial-gradient(42% 36% at 92% 12%, color-mix(in srgb, var(--c-ram) 32%, transparent) 0%, transparent 70%),
    radial-gradient(45% 40% at 85% 90%, color-mix(in srgb, var(--c-net-down) 28%, transparent) 0%, transparent 70%),
    radial-gradient(40% 34% at 8% 85%, color-mix(in srgb, var(--c-swap) 24%, transparent) 0%, transparent 70%),
    linear-gradient(160deg, var(--page-bg-1) 0%, var(--page-bg-2) 100%);
  background-attachment: fixed;
  transition: background-color 0.4s ease;
}

h1, h2, h3, .brand, .nav-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

a { color: var(--c-net-up); }

/* ---------- Shared "glass bubble" surface ----------
   Applied directly to every panel-like element so no extra class is needed
   in the markup: cards, panels, the login card, the topbar and chart boxes
   all get the same frosted-glass treatment. */
.glass, .card, .panel, .login-card, .topbar, .chart-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  position: relative;
  transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

/* Fallback fade for every theme-dependent surface, used on browsers without
   the View Transitions API (the JS below adds a nicer circular reveal on
   top of this when it's available; this alone still looks fine without it). */
.field input,
.btn-ghost,
.range-tab,
.bar-track,
.badge,
.core-pill {
  transition: background-color 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

/* ---------- Day/night transition (View Transitions API) ----------
   theme.js starts a view transition and animates the new theme's snapshot
   in as an expanding circle from the toggle button, like a sun/moon reveal.
   Browsers without support simply skip straight to the CSS fade above. */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}
::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 2; }

@media (prefers-reduced-motion: reduce) {
  .glass, .card, .panel, .login-card, .topbar, .chart-box,
  .field input, .btn-ghost, .range-tab, .bar-track, .badge, .core-pill, body {
    transition: none !important;
  }
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  color: var(--text);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}
.theme-toggle:hover { transform: translateY(-1px) scale(1.05); }

/* ---------- Login page ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}

.login-screen .theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: 36px 32px;
}

.login-card h1 {
  font-size: 1.4rem;
  text-align: center;
  margin: 0 0 4px;
  background: linear-gradient(135deg, var(--c-cpu), var(--c-ram));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-sub {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.78rem;
  margin-bottom: 28px;
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  background: var(--input-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus {
  border-color: var(--c-cpu);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-cpu) 25%, transparent);
}

.btn-primary {
  width: 100%;
  padding: 11px;
  background: linear-gradient(135deg, var(--c-cpu) 0%, var(--c-ram) 100%);
  color: #ffffff;
  border: none;
  border-radius: 14px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 0 6px 20px color-mix(in srgb, var(--c-ram) 35%, transparent);
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 26px color-mix(in srgb, var(--c-ram) 45%, transparent); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.login-error {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--danger) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  color: var(--danger);
  font-size: 0.8rem;
  text-align: center;
  display: none;
}
.login-error.show { display: block; }

/* ---------- Dashboard shell ---------- */
.topbar {
  position: sticky;
  top: 14px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 22px;
  margin: 14px 14px 0;
}

.brand {
  font-size: 1.05rem;
  background: linear-gradient(135deg, var(--c-cpu), var(--c-net-down));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand span { color: var(--text-dim); font-size: 0.65rem; display: block; font-family: 'Inter', sans-serif; letter-spacing: 0.06em; -webkit-text-fill-color: var(--text-dim); }

.topbar-right { display: flex; align-items: center; gap: 12px; }

.conn-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
  transition: background 0.3s, box-shadow 0.3s;
}
.conn-dot.live { background: var(--ok); box-shadow: 0 0 8px var(--ok); }

.btn-ghost {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  cursor: pointer;
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--c-cpu); color: var(--text); }

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 20px 60px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.card {
  padding: 18px 20px;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 70px;
  background: radial-gradient(60% 100% at 20% 0%, var(--accent, var(--c-cpu)) 0%, transparent 100%);
  opacity: 0.22;
  pointer-events: none;
}

.card-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  position: relative;
}
.card-label .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent, var(--c-cpu));
  box-shadow: 0 0 8px var(--accent, var(--c-cpu));
  flex-shrink: 0;
}

.card-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2rem;
  color: var(--text);
  line-height: 1;
  position: relative;
}
.card-value small { font-size: 0.9rem; color: var(--text-dim); }

.card-sub { font-size: 0.72rem; color: var(--text-dim); margin-top: 6px; position: relative; }

.bar-track {
  margin-top: 10px;
  height: 7px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--text-dim) 20%, transparent);
  overflow: hidden;
  position: relative;
}
.bar-fill {
  height: 100%;
  border-radius: 10px;
  background: var(--accent, var(--c-cpu));
  transition: width 0.4s ease, background 0.3s;
}
.bar-fill.warn { background: var(--warn); }
.bar-fill.danger { background: var(--danger); }

.cores-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(46px, 1fr));
  gap: 8px;
  margin-top: 10px;
}
.core-pill {
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 6px 2px;
  border-radius: 14px;
  background: var(--glass-bg-strong);
  color: var(--text-dim);
  border: 1px solid var(--glass-border);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 30px 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

.panel {
  padding: 18px 20px;
  margin-bottom: 22px;
}

table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th { text-align: left; color: var(--text-dim); text-transform: uppercase; font-size: 0.68rem; letter-spacing: 0.06em; padding: 8px 10px; border-bottom: 1px solid var(--glass-border); }
td { padding: 10px; border-bottom: 1px solid color-mix(in srgb, var(--glass-border) 60%, transparent); color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; }
td:first-child { font-family: 'Inter', sans-serif; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; }
.badge.running, .badge.online { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.badge.running::before, .badge.online::before { background: var(--ok); }
.badge.exited, .badge.stopped, .badge.dead { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.badge.exited::before, .badge.stopped::before, .badge.dead::before { background: var(--danger); }
.badge.other { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.other::before { background: var(--warn); }

.empty-state { color: var(--text-dim); font-size: 0.82rem; padding: 18px 0; text-align: center; }

.range-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.range-tab {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  backdrop-filter: blur(10px);
}
.range-tab.active { border-color: var(--c-cpu); color: var(--text); background: color-mix(in srgb, var(--c-cpu) 20%, var(--glass-bg)); }

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 18px;
}
.chart-box { padding: 16px; }
.chart-box h3 { margin: 0 0 10px; font-size: 0.82rem; color: var(--text-dim); font-weight: 600; letter-spacing: 0.02em; }
.chart-box canvas { max-height: 220px; }

footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.7rem;
  padding: 24px;
}

@media (max-width: 640px) {
  .topbar { padding: 10px 16px; margin: 10px 10px 0; }
  main { padding: 14px 12px 40px; }
  .card-value { font-size: 1.5rem; }
  .charts-grid { grid-template-columns: 1fr; }
}