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

:root {
  --bg: #0f1117;
  --card: #1a1d27;
  --border: #2a2d3a;
  --text: #e8eaf0;
  --muted: #8890a4;
  --primary: #4f8ef7;
  --success: #34c47c;
  --danger: #f05252;
  --warning: #f59e0b;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

header h1 { font-size: 1.4rem; }

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Badge PC */
.badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-online { background: #0d3320; color: var(--success); border: 1px solid var(--success); }
.badge-offline { background: #2a1a1a; color: var(--danger); border: 1px solid var(--danger); }
.badge-locked { background: #2a1f0d; color: var(--warning); border: 1px solid var(--warning); }

/* Status card */
.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.status-label { font-size: 0.8rem; color: var(--muted); margin-bottom: 4px; }
.status-value { font-size: 1.8rem; font-weight: 700; }
.status-detail { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
.status-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Buttons */
.btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  transition: opacity 0.15s;
  color: #fff;
  background: #2a2d3a;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--primary); }
.btn-success { background: var(--success); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }

/* Message row */
.message-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

input[type="text"], input[type="password"], input[type="number"], input[type="time"] {
  flex: 1;
  padding: 9px 12px;
  background: #0f1117;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.875rem;
  min-width: 0;
}
input:focus { outline: 2px solid var(--primary); }

/* Requests */
.request-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
  gap: 12px;
}
.request-item.pending { border-left: 3px solid var(--warning); }
.request-item.approved { border-left: 3px solid var(--success); opacity: 0.7; }
.request-item.denied { border-left: 3px solid var(--danger); opacity: 0.7; }
.request-meta { font-size: 0.8rem; color: var(--muted); margin-top: 3px; }
.request-actions { display: flex; gap: 6px; flex-shrink: 0; }

.empty-msg { color: var(--muted); font-style: italic; font-size: 0.9rem; }

/* Days tabs */
.days-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.day-tab {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
}
.day-tab:hover { background: #2a2d3a; color: var(--text); }
.day-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Schedule slots */
.slot-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
}
.slot-item.disabled { opacity: 0.45; }
.slot-time { font-weight: 600; font-size: 1rem; min-width: 120px; }
.slot-label { flex: 1; color: var(--muted); font-size: 0.85rem; }
.toggle {
  width: 40px;
  height: 22px;
  background: var(--border);
  border-radius: 11px;
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}
.toggle.on { background: var(--success); }
.toggle::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: left 0.2s;
}
.toggle.on::after { left: 21px; }

.add-slot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.add-slot span { color: var(--muted); }

/* Settings */
.settings-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.settings-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}
.settings-row label input { min-width: 160px; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal h3 { font-size: 1.1rem; }
.modal p { color: var(--muted); font-size: 0.9rem; }
.modal label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}
.modal-actions { display: flex; gap: 8px; margin-top: 4px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 20px;
  font-size: 0.9rem;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }