/* ── reset & base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg:      #0d1117;
  --c-surface: #161b22;
  --c-border:  #30363d;
  --c-text:    #e6edf3;
  --c-muted:   #7d8590;
  --c-accent:  #58a6ff;
  --c-ok:      #3fb950;
  --c-warn:    #d29922;
  --c-danger:  #f85149;

  --radius:    12px;
  --font-mono: 'JetBrains Mono', 'Fira Mono', 'Courier New', monospace;
  --font-ui:   'IBM Plex Sans', 'Segoe UI', sans-serif;
}

html, body {
  min-height: 100%;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-ui);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

/* ── card ───────────────────────────────────────────────────────────────────── */
.card {
  width: 100%;
  max-width: 560px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow:
    0 0 0 1px rgba(88,166,255,.06),
    0 8px 32px rgba(0,0,0,.55);
  overflow: hidden;
  position: relative;
  animation: fadeUp .45s ease both;
}

@keyframes fadeUp {
  from { opacity:0; transform:translateY(14px); }
  to   { opacity:1; transform:translateY(0);    }
}

/* ── header ─────────────────────────────────────────────────────────────────── */
.card__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .3rem;
  padding: 1.6rem 1.6rem 1.2rem;
  border-bottom: 1px solid var(--c-border);
  background: linear-gradient(160deg, #1c2333 0%, var(--c-surface) 100%);
}

.card__icon {
  font-size: 1.6rem;
  color: var(--c-accent);
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(88,166,255,.5));
}

.card__hostname {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 5vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--c-text);
  word-break: break-all;
  text-align: center;
}

.card__os {
  font-size: .78rem;
  color: var(--c-muted);
  letter-spacing: .02em;
}

/* ── grid ───────────────────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-border);
}

/* ── tile ───────────────────────────────────────────────────────────────────── */
.tile {
  background: var(--c-surface);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.tile--bar {
  /* bar tiles keep same layout */
}

.tile__label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-muted);
  font-weight: 500;
}

.tile__label small {
  text-transform: none;
  letter-spacing: 0;
  font-size: .68rem;
}

.tile__value {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.5vw, 1.2rem);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.15;
}

.tile__value.load {
  display: flex;
  align-items: baseline;
  gap: .25rem;
  flex-wrap: wrap;
}

.tile__value .sep {
  color: var(--c-muted);
  font-weight: 300;
}

.tile__sub {
  font-size: .72rem;
  color: var(--c-muted);
  font-family: var(--font-mono);
  margin-top: .1rem;
}

/* ── progress bar ───────────────────────────────────────────────────────────── */
.bar-wrap {
  height: 5px;
  border-radius: 99px;
  background: rgba(255,255,255,.07);
  overflow: hidden;
  margin-top: .2rem;
}

.bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width .6s ease;
  min-width: 2px;
}

/* ── footer ─────────────────────────────────────────────────────────────────── */
.card__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .4rem .6rem;
  padding: .85rem 1.2rem;
  border-top: 1px solid var(--c-border);
  font-size: .72rem;
  color: var(--c-muted);
  font-family: var(--font-mono);
  background: rgba(0,0,0,.15);
}

.dot { color: var(--c-border); }

.refresh-note { color: var(--c-accent); opacity: .7; }

/* ── extra sekce (disky, síť) ────────────────────────────────────────────────── */
.extra-section {
  border-top: 1px solid var(--c-border);
  padding: .9rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.extra-title {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-muted);
  font-weight: 500;
  margin-bottom: -.2rem;
}

.extra-head {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  margin-bottom: .3rem;
}

.extra-name {
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  color: var(--c-text);
  flex-shrink: 0;
}

.extra-pct {
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  margin-left: auto;
  flex-shrink: 0;
}

/* síť */
.net-speeds {
  margin-left: auto;
  display: flex;
  gap: .8rem;
  font-family: var(--font-mono);
  font-size: .82rem;
}

.net-rx { color: var(--c-ok);    }
.net-tx { color: var(--c-accent); }

/* ── countdown kruh ──────────────────────────────────────────────────────────── */
.countdown-ring {
  position: absolute;
  bottom: .3rem;
  right: .35rem;
  width: 15px;
  height: 15px;
  transform: rotate(-90deg);
  pointer-events: none;
}

.countdown-ring__track {
  fill: none;
  stroke: rgba(255,255,255,.07);
  stroke-width: 5;
}

.countdown-ring__fill {
  fill: none;
  stroke: var(--c-accent);
  stroke-width: 5;
  opacity: .5;
  stroke-dasharray: 94.25;
  stroke-dashoffset: 0;
  stroke-linecap: round;
}

/* ── responsive tweaks ──────────────────────────────────────────────────────── */
@media (max-width: 400px) {
  body { padding: .8rem; }

  .card__header { padding: 1.2rem 1rem .9rem; }

  .tile { padding: .9rem 1rem; }

  .card__footer { padding: .7rem .9rem; font-size: .68rem; }
}

/* tiny phones — single column */
@media (max-width: 320px) {
  .grid { grid-template-columns: 1fr; }
}