@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg: #0a0d14;
  --bg-soft: #0f1420;
  --panel: rgba(255, 255, 255, 0.03);
  --panel-solid: #121826;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.12);

  --text: #e7ecf5;
  --text-dim: #9aa4b8;
  --text-faint: #5c6a80;

  --blue: #4f8cff;
  --cyan: #22d3ee;
  --green: #34d399;
  --purple: #a78bfa;
  --amber: #fbbf24;
  --red: #f87171;

  --sidebar-bg: rgba(12, 16, 25, 0.75);
  --table-head: #141a28;
  --row-even: rgba(255, 255, 255, 0.015);
  --row-hover: rgba(79, 140, 255, 0.06);
  --row-border: rgba(255, 255, 255, 0.04);
  --hover-bg: rgba(255, 255, 255, 0.04);
  --input-bg: rgba(0, 0, 0, 0.28);
  --btn-ghost-bg: rgba(255, 255, 255, 0.04);
  --btn-ghost-hover: rgba(255, 255, 255, 0.08);
  --scroll-thumb: rgba(255, 255, 255, 0.1);
  --active-text: #fff;
  --active-bg: linear-gradient(90deg, rgba(79, 140, 255, 0.18), rgba(34, 211, 238, 0.06));
  --active-border: rgba(79, 140, 255, 0.25);

  --sidebar-w: 264px;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
  --bg: #f3f5f9;
  --bg-soft: #ffffff;
  --panel: #ffffff;
  --panel-solid: #ffffff;
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.18);

  --text: #111827;
  --text-dim: #4b5563;
  --text-faint: #9ca3af;

  --blue: #2563eb;
  --cyan: #0891b2;
  --green: #059669;
  --purple: #7c3aed;
  --amber: #d97706;
  --red: #dc2626;

  --sidebar-bg: #ffffff;
  --table-head: #eef1f6;
  --row-even: rgba(15, 23, 42, 0.02);
  --row-hover: rgba(37, 99, 235, 0.05);
  --row-border: rgba(15, 23, 42, 0.06);
  --hover-bg: rgba(15, 23, 42, 0.04);
  --input-bg: #ffffff;
  --btn-ghost-bg: rgba(15, 23, 42, 0.03);
  --btn-ghost-hover: rgba(15, 23, 42, 0.07);
  --scroll-thumb: rgba(15, 23, 42, 0.15);
  --active-text: #1d4ed8;
  --active-bg: linear-gradient(90deg, rgba(37, 99, 235, 0.10), rgba(8, 145, 178, 0.06));
  --active-border: rgba(37, 99, 235, 0.25);

  --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(167, 139, 250, 0.08), transparent 60%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s, color 0.25s;
}

[data-theme="light"] body {
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, 0.07), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(124, 58, 237, 0.06), transparent 60%);
}

#app-container { display: flex; width: 100vw; min-height: 100vh; }

/* ===================== Sidebar ===================== */
aside.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--sidebar-bg);
  backdrop-filter: blur(18px);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0.9rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-top { display: flex; flex-direction: column; }

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 0.6rem 1.25rem;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}

.logo-image {
  max-width: 100%;
  max-height: 110px;
  width: auto;
  object-fit: contain;
}

[data-theme="light"] .logo-image {
  filter: drop-shadow(0 6px 14px rgba(90, 100, 120, 0.4));
}

.nav-menu { display: flex; flex-direction: column; gap: 2px; margin-top: 0.75rem; }

.nav-section {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  font-weight: 600;
  margin: 0.9rem 0.6rem 0.3rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.58rem 0.7rem;
  border-radius: 10px;
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  border: 1px solid transparent;
  position: relative;
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.85; }

.nav-item:hover { color: var(--text); background: var(--hover-bg); }

.nav-item.active {
  color: var(--active-text);
  background: var(--active-bg);
  border-color: var(--active-border);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -0.9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

.nav-item.active svg { color: var(--cyan); }

/* status do coletor */
.collector-status-card {
  background: rgba(52, 211, 153, 0.07);
  border: 1px solid rgba(52, 211, 153, 0.18);
  border-radius: 12px;
  padding: 0.85rem 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1rem;
}

.pulse-dot {
  width: 9px; height: 9px;
  background: var(--green);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.status-info h4 { font-size: 0.82rem; font-weight: 600; color: var(--green); }
.status-info p { font-size: 0.7rem; color: var(--text-dim); }

/* coletor desligado */
.collector-status-card.off {
  background: rgba(148, 163, 184, 0.07);
  border-color: rgba(148, 163, 184, 0.18);
}
.collector-status-card.off .status-info h4 { color: var(--text-dim); }
.pulse-dot.off {
  background: var(--text-dim);
  animation: none;
  box-shadow: none;
}

/* switch liga/desliga */
.switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
  margin-left: auto;
  cursor: pointer;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute;
  inset: 0;
  background: var(--text-dim);
  border-radius: 999px;
  transition: background 0.2s;
}
.switch-slider::before {
  content: "";
  position: absolute;
  height: 16px;
  width: 16px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.switch input:checked + .switch-slider { background: var(--green); }
.switch input:checked + .switch-slider::before { transform: translateX(16px); }

/* ===================== Main ===================== */
main.content { flex: 1; padding: 2rem 2.25rem; overflow-y: auto; max-height: 100vh; }

header.top-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.75rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-title h2 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; }
.header-title p { font-size: 0.88rem; color: var(--text-dim); margin-top: 0.2rem; }

.header-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: linear-gradient(135deg, var(--blue), #3b7be0);
  color: #fff;
  box-shadow: 0 6px 18px rgba(79, 140, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 9px 24px rgba(79, 140, 255, 0.45); }

.btn-ghost {
  background: var(--btn-ghost-bg);
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--btn-ghost-hover); }

.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.75rem; border-radius: 8px; }

.danger { color: var(--red); }
.muted { color: var(--text-dim); font-size: 0.8rem; }

/* toggle de tema */
.theme-toggle { padding: 0.6rem; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ===================== Metric cards ===================== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
}

.metric-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }

.metric-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.metric-icon svg { width: 22px; height: 22px; }

.icon-blue { background: rgba(79, 140, 255, 0.14); color: var(--blue); }
.icon-cyan { background: rgba(34, 211, 238, 0.14); color: var(--cyan); }
.icon-green { background: rgba(52, 211, 153, 0.14); color: var(--green); }
.icon-purple { background: rgba(167, 139, 250, 0.14); color: var(--purple); }

.metric-value { font-size: 1.55rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
.metric-title { font-size: 0.78rem; color: var(--text-dim); margin-top: 0.2rem; }

/* ===================== Panels ===================== */
.panel-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.panel-header h3 { font-size: 1.02rem; font-weight: 600; }

.panel-actions { display: flex; align-items: center; gap: 0.6rem; }

.table-wrap { overflow-x: auto; border-radius: 10px; }

/* ===================== Tables ===================== */
table.data-table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }

table.data-table thead th {
  position: sticky;
  top: 0;
  background: var(--table-head);
  text-align: left;
  padding: 0.65rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.data-table tbody td {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--row-border);
  white-space: nowrap;
  color: var(--text);
}

table.data-table tbody tr { transition: background 0.12s; }
table.data-table tbody tr:nth-child(even) { background: var(--row-even); }
table.data-table tbody tr:hover { background: var(--row-hover); }

/* ===================== Forms ===================== */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.78rem; font-weight: 500; color: var(--text-dim); }

.input-control {
  background: var(--input-bg);
  border: 1px solid var(--border);
  padding: 0.62rem 0.85rem;
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
.input-control:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.15); }
.input-control::placeholder { color: var(--text-faint); }

/* ===================== Scrollbar ===================== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--scroll-thumb); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--scroll-thumb); background-clip: padding-box; opacity: 0.8; }
::-webkit-scrollbar-track { background: transparent; }

/* ===================== Responsive ===================== */
@media (max-width: 960px) {
  #app-container { flex-direction: column; }
  aside.sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; padding: 0.75rem 1rem; }
  .sidebar-top { flex-direction: row; width: 100%; align-items: center; gap: 1rem; }
  .logo-container { border-bottom: none; margin: 0; padding: 0; }
  .nav-menu { flex-direction: row; flex-wrap: wrap; margin: 0; }
  .nav-section { display: none; }
  .collector-status-card { display: none; }
  main.content { padding: 1.25rem; }
  .form-row { grid-template-columns: 1fr; }
}