/* ========== RESET & BASE ========== */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Arial, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

h1 { margin: 0; font-size: 1.25rem; }
p  { margin: 0 0 10px; line-height: 1.55; }

/* ========== HEADER ========== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: #111827;
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 64px;
}

.actions { display: flex; gap: 12px; align-items: center; }
.admin   { margin-left: 12px; }
.admin-actions { display: flex; gap: 8px; margin-top: 8px; }

/* Toggle sidebar (mobile) */
.sidebar-toggle {
  display: none;
  appearance: none;
  border: 1px solid #334155;
  background: #0b1220;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  margin-right: 10px;
}

/* ========== APP GRID (SIDEBAR + CONTENT) ========== */
.app {
  display: grid;
  grid-template-columns: 260px 1fr; /* sidebar | content */
  min-height: calc(100vh - 64px);
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 64px;                       /* sesuaikan jika tinggi header berubah */
  align-self: start;
  height: calc(100vh - 64px);
  overflow-y: auto;
  background: #0b1220;
  border-right: 1px solid #1f2937;
}

/* Nav di sidebar */
.nav { display: flex; flex-direction: column; padding: 12px; gap: 4px; }
.nav-section {
  margin: 12px 8px 6px;
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: #e2e8f0;
  text-decoration: none;
  border: 1px solid transparent;
}
.nav-link:hover { background: #0f172a; border-color: #1f2937; }
.nav-link.active {
  background: #111827;
  border-color: #334155;
  color: #facc15;
  font-weight: 600;
}

/* Main content */
main {
  padding: 16px 18px;
  max-width: 100%;
  margin: 0 auto;
}

/* ========== GRID DEVICES (2 kolom) ========== */
#devices {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr)); /* 2 kolom tetap */
  gap: 16px;
}

/* Card & chart */
.device-card {
  border: 1px solid #334155;
  border-radius: 8px;
  background: #111827;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
  padding: 10px;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 300px; /* atur sesuai kebutuhan */
}

/* Judul perangkat */
.device-title { margin: 0; font-size: 1rem; }
h3.device-title {
  margin: 0 0 6px 0;
  font-size: 0.95rem;
  color: #facc15;
}
h4.device-title {
  margin: 0 0 6px 0;
  font-size: 0.85rem;
  color: #ffffff;
}

/* Kontrol chart */
.chart-controls {
  margin: 6px 0;
  display: flex;
  gap: 12px;
  font-size: 0.9rem;
}
.chart-controls input { vertical-align: middle; }

/* ========== USER META FORM ========== */
.user-meta {
  margin-top: 8px;
  padding: 8px;
  border-top: 1px dashed #334155;
}
.user-meta h3 {
  margin: 0 0 6px 0;
  font-size: 0.95rem;
  color: #facc15;
}
.user-meta h4 {
  margin: 0 0 6px 0;
  font-size: 0.5rem;
  color: #facc15;
}

.user-meta-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(60px, 1fr));
  gap: 8px;
  align-items: end;
}
.user-meta-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  color: #e2e8f0;
}
.user-meta-form input,
.user-meta-form select {
  margin-top: 4px;
  padding: 6px 8px;
  border: 1px solid #334155;
  border-radius: 6px;
  background: #0f172a;
  color: #e2e8f0;
}
.user-meta-form select { height: 30px; }
.user-meta-form button {
  height: 36px;
  border: none;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
}
.user-meta-status { font-size: 0.85rem; color: #22c55e; }

/* ========== FOOTER ========== */
footer {
  padding: 14px 20px;
  color: #94a3b8;
  text-align: center;
  border-top: 1px solid #1f2937;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
  .app { grid-template-columns: 220px 1fr; }
  #devices { grid-template-columns: repeat(2, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
  /* Sidebar jadi off-canvas */
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    z-index: 30;
    top: 64px;
    left: 0;
    width: 260px;
    height: calc(100vh - 64px);
    transform: translateX(-100%);
    transition: transform .25s ease;
    box-shadow: 8px 0 24px rgba(0,0,0,.35);
  }
  .app.sidebar-open .sidebar { transform: translateX(0); }

  .sidebar-toggle { display: inline-flex; align-items: center; gap: 8px; }

  /* Kunci scroll saat sidebar terbuka (opsional, tambahkan class di body via JS) */
  body.no-scroll { overflow: hidden; }

  /* Grid 1 kolom di layar kecil */
  #devices { grid-template-columns: 1fr; }

  main { padding: 14px; }
}