:root {
  --bg-1: #0a1424;
  --bg-2: #131a2c;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-input: rgba(0, 0, 0, 0.28);
  --text: #f0f4f8;
  --muted: rgba(240, 244, 248, 0.55);
  --muted-strong: rgba(240, 244, 248, 0.75);
  --accent: #34c759;
  --accent-ink: #062a14;
  --danger: #ff453a;
  --warn: #ffd60a;
  --shadow: 0 30px 60px -25px rgba(0, 0, 0, 0.55), 0 8px 24px -12px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
html { color-scheme: dark; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(1100px 700px at 15% -10%, rgba(64, 99, 156, 0.45), transparent 60%),
    radial-gradient(900px 700px at 110% 110%, rgba(33, 78, 120, 0.5), transparent 55%),
    radial-gradient(700px 500px at 50% 110%, rgba(120, 80, 180, 0.18), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2));
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  letter-spacing: -0.005em;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

/* ---------- Login ---------- */
.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  min-height: 100vh;
}
.card {
  padding: 2rem 1.75rem;
  width: min(380px, 100%);
}
h1 {
  margin: 0 0 1.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
form label {
  display: block;
  margin-bottom: 1rem;
}
form label > span {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.45rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
input[type="text"], input[type="password"], input:not([type]) {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--glass-input);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.15s, background 0.15s;
}
input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(0, 0, 0, 0.4);
}

/* ---------- Buttons ---------- */
button {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 14px;
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  width: 100%;
  transition: transform 0.08s ease-out, filter 0.15s, opacity 0.15s, background 0.15s;
  letter-spacing: -0.005em;
}
button:hover:not(:disabled) { filter: brightness(1.07); }
button:active:not(:disabled) { transform: scale(0.98); }
button:disabled {
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  cursor: not-allowed;
  border: 1px solid var(--glass-border);
}
button.danger { background: var(--danger); color: white; }
button.ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid var(--glass-border);
}
button.link {
  width: auto;
  background: transparent;
  color: var(--muted);
  padding: 0.4rem 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
}
button.link:hover { color: var(--text); }

.err {
  color: #ff7a70;
  min-height: 1.2em;
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
}

/* ---------- Call page layout ---------- */
.app {
  max-width: 560px;
  margin: 0 auto;
  padding:
    max(env(safe-area-inset-top), 0.9rem)
    max(env(safe-area-inset-right), 0.9rem)
    max(env(safe-area-inset-bottom), 0.9rem)
    max(env(safe-area-inset-left), 0.9rem);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.7rem 0.55rem 1rem;
  border-radius: 999px;
  gap: 0.5rem;
}
.topbar .who {
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar .who strong { color: var(--text); font-weight: 600; }

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

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--glass-border);
  font-size: 0.78rem;
  color: var(--muted-strong);
  font-weight: 500;
  white-space: nowrap;
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block;
  background: var(--muted);
  flex: none;
}
.dot-ok { background: var(--accent); box-shadow: 0 0 0 3px rgba(52, 199, 89, 0.18); }
.dot-bad { background: var(--danger); box-shadow: 0 0 0 3px rgba(255, 69, 58, 0.18); }
.dot-idle { background: var(--muted); }

/* ---------- Hero ---------- */
.hero {
  padding: 1.6rem 1.25rem 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}
.hero h2 {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero .target {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0.1rem 0;
}
.hero .info {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0;
  min-height: 1.3em;
}
.hero-actions {
  display: flex;
  gap: 0.55rem;
  width: 100%;
  margin-top: 0.5rem;
}
.hero-actions button { flex: 1; }

/* ---------- Sections ---------- */
.section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0.4rem 0 -0.25rem 0.9rem;
  font-weight: 600;
}

.devices {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}
.device-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}
.device-row label > span {
  font-size: 0.72rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.device-row label > span small {
  font-size: 0.7rem;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  opacity: 0.85;
}

select {
  width: 100%;
  padding: 0.75rem 2.4rem 0.75rem 0.95rem;
  background-color: var(--glass-input);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 14 14" fill="none"><path d="M3 5l4 4 4-4" stroke="rgba(240,244,248,0.65)" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
}
select:focus {
  outline: none;
  border-color: rgba(255,255,255,0.3);
}

.meter {
  height: 8px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
}
.meter-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.06s linear, background-color 0.1s linear;
}
.meter-fill.active { background: var(--warn); }
.meter-fill.hot { background: var(--danger); }

.devices-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.25rem;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted-strong);
  font-size: 0.9rem;
  cursor: pointer;
  user-select: none;
}
.toggle input {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  margin: 0;
}

.muted { color: var(--muted); }

/* ---------- Mobile ---------- */
@media (max-width: 480px) {
  body { font-size: 15px; }
  .hero { padding: 1.4rem 1.1rem 1.1rem; }
  .hero .target { font-size: 1.55rem; }
  .topbar { padding: 0.5rem 0.6rem 0.5rem 0.85rem; }
  .topbar .who { font-size: 0.8rem; }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: rgba(20, 28, 46, 0.92); }
}