/* ===== BOB ROBOT DASHBOARD ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blue:        #2563EB;
  --blue-light:  #EFF6FF;
  --blue-hover:  #1D4ED8;
  --blue-50:     rgba(37,99,235,0.07);
  --blue-ring:   rgba(37,99,235,0.18);

  --nav-bg:      #0F172A;
  --nav-border:  rgba(255,255,255,0.06);
  --nav-text:    #94A3B8;
  --nav-hover:   rgba(255,255,255,0.07);
  --nav-active:  rgba(37,99,235,0.25);
  --nav-active-text: #93C5FD;

  --bg:          #F1F5F9;
  --bg-white:    #FFFFFF;
  --border:      #E2E8F0;
  --border-hover:#CBD5E1;

  --text:        #0F172A;
  --text-2:      #475569;
  --text-3:      #94A3B8;

  --green:       #10B981;
  --green-bg:    #ECFDF5;
  --green-border:#A7F3D0;
  --red:         #EF4444;
  --red-bg:      #FEF2F2;
  --red-border:  #FECACA;
  --amber:       #F59E0B;

  --nav-w:       256px;
  --r:           10px;
  --r-lg:        14px;
  --shadow-sm:   0 1px 2px rgba(0,0,0,0.05);
  --shadow:      0 1px 4px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.12);
  --t:           0.15s ease;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.5;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ===== LAYOUT ===== */
.container {
  margin-left: var(--nav-w);
  padding: 32px 36px;
  max-width: 1440px;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.nav {
  position: fixed;
  left: 0; top: 0;
  width: var(--nav-w);
  height: 100vh;
  background: var(--nav-bg);
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 0 10px 16px;
  overflow-y: auto;
  z-index: 200;
}

/* Nav brand area */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 8px 16px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--nav-border);
}

.nav-logo img {
  width: 40px; height: 40px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(37,99,235,0.5);
}

.nav-logo::after {
  content: 'Bob Robot';
  font-size: 15px;
  font-weight: 700;
  color: #F1F5F9;
  letter-spacing: -0.01em;
}

/* Nav section labels */
.nav-section {
  font-size: 10px;
  font-weight: 700;
  color: #334155;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 14px 10px 4px;
}

.nav button {
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--nav-text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t);
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: 'Inter', sans-serif;
}

.nav button .nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav button:hover {
  background: var(--nav-hover);
  color: #E2E8F0;
}
.nav button:hover .nav-icon { opacity: 1; }

.nav button.nav-active {
  background: var(--nav-active);
  color: var(--nav-active-text);
  font-weight: 600;
}
.nav button.nav-active .nav-icon { opacity: 1; }

/* ===== PAGE HEADER ===== */
.header { margin-bottom: 28px; }

.header h1 {
  font-size: 1.4em;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header h1::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 22px;
  background: linear-gradient(180deg, var(--blue) 0%, #7C3AED 100%);
  border-radius: 2px;
}

.header p { color: var(--text-2); font-size: 13px; margin-top: 3px; padding-left: 14px; }

/* ===== CARDS ===== */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.card h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ===== INPUTS ===== */
.input-group { margin-bottom: 16px; }

.input-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  transition: border-color var(--t), box-shadow var(--t), background var(--t);
  outline: none;
}

input::placeholder { color: var(--text-3); }

input:focus, select:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-ring);
  background: var(--bg-white);
}

select option { background: var(--bg-white); color: var(--text); }
textarea { resize: vertical; min-height: 80px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t);
  border: 1px solid var(--border);
  white-space: nowrap;
  background: var(--bg-white);
  color: var(--text);
  font-family: 'Inter', sans-serif;
}

.btn:hover { border-color: var(--border-hover); background: var(--bg); }
.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-hover); border-color: var(--blue-hover); }

.btn-secondary { background: var(--green-bg); color: #059669; border-color: var(--green-border); }
.btn-secondary:hover { background: #D1FAE5; }

.btn-danger { background: var(--red-bg); color: var(--red); border-color: var(--red-border); }
.btn-danger:hover { background: #FEE2E2; }

.btn-small { padding: 5px 10px; font-size: 12px; }

/* ===== TABLE ===== */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }

.data-table thead tr { border-bottom: 2px solid var(--border); }

.data-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg);
}

.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--blue-50); }

/* ===== ROBOT GRID ===== */
.robot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.robot-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  transition: all var(--t);
}

.robot-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.robot-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.robot-info { font-size: 13px; color: var(--text-2); }
.robot-info div { margin: 5px 0; }
.robot-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* ===== STATUS DOTS ===== */
.robot-status { display: inline-block; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-online { background: var(--green); box-shadow: 0 0 0 3px rgba(16,185,129,0.2); }
.status-offline { background: var(--red); }

/* ===== BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  min-width: 18px;
  height: 18px;
}

/* ===== USER INFO BAR ===== */
.user-info {
  position: fixed;
  top: 16px; right: 24px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 6px 8px 6px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 300;
  box-shadow: var(--shadow);
}

.user-info span { font-weight: 600; font-size: 13px; color: var(--text); }

.user-info select {
  width: auto;
  padding: 4px 8px;
  font-size: 12px;
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
  border-radius: 6px;
}

/* ===== MODAL ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-content[style*="max-width: 800px"] { max-width: 800px; }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 { font-size: 15px; font-weight: 700; color: var(--text); }

.close-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all var(--t);
}
.close-btn:hover { color: var(--text); background: var(--border); }

/* ===== CONTROL GRID ===== */
.control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.control-btn {
  padding: 14px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t);
  text-align: center;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
}

.control-btn:hover { background: var(--blue-50); border-color: var(--blue); color: var(--blue); }
.control-btn:active { transform: scale(0.97); }
.control-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  top: 72px; right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 360px;
}

.toast {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  border-radius: var(--r);
  padding: 12px 14px;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.25s ease;
}

.toast.visitor { border-left-color: var(--green); }
.toast.warning  { border-left-color: var(--amber); }
.toast.error    { border-left-color: var(--red); }

.toast-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 4px; }
.toast-title { font-weight: 600; font-size: 13px; color: var(--text); }
.toast-close { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 18px; line-height: 1; padding: 0 2px; }
.toast-message { font-size: 12px; color: var(--text-2); line-height: 1.4; }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ===== CALENDAR ===== */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }

.cal-day-header {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 0;
}

.cal-day {
  min-height: 80px;
  padding: 7px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--t);
  display: flex;
  flex-direction: column;
}

.cal-day:hover { border-color: var(--blue); box-shadow: var(--shadow-sm); }
.cal-day.today { border-color: var(--blue); background: var(--blue-light); }
.cal-day.selected { border-color: var(--blue-hover); background: var(--blue-light); }
.cal-day.other-month .cal-day-num { color: var(--text-3); }
.cal-day-num { font-size: 13px; font-weight: 600; margin-bottom: 3px; }

.cal-event-dot {
  font-size: 10px;
  background: var(--blue);
  color: #fff;
  padding: 1px 5px;
  border-radius: 4px;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.week-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }

.week-day {
  min-height: 130px;
  padding: 10px 8px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--t);
}

.week-day:hover { border-color: var(--blue); }
.week-day.today { border-color: var(--blue); background: var(--blue-light); }

/* ===== TOOLBAR ===== */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}
.toolbar h2 { font-size: 15px; font-weight: 700; }

/* ===== STAT CARDS ===== */
.stat-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 20px;
  text-align: center;
  transition: all var(--t);
}
.stat-card:hover { box-shadow: var(--shadow); border-color: var(--border-hover); }

.stat-card h3 {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.stat-number { font-size: 2.8em; font-weight: 800; letter-spacing: -0.03em; color: var(--text); }
.stat-sub { font-size: 12px; color: var(--text-2); margin-top: 4px; }

/* ===== BURGER MENU ===== */
.burger-menu {
  display: none;
  position: fixed;
  top: 14px; left: 14px;
  z-index: 1001;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 10px;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.burger-menu div { width: 20px; height: 2px; background: var(--text); margin: 4px 0; border-radius: 2px; }

.menu-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 199; }
.menu-overlay.open { display: block; }

/* ===== MISC ===== */
.text-muted  { color: var(--text-3); }
.text-green  { color: var(--green); }
.text-red    { color: var(--red); }
.text-amber  { color: var(--amber); }
.text-accent { color: var(--blue); }

.empty-state { text-align: center; padding: 48px 20px; color: var(--text-3); font-size: 13px; }

/* ===== LOGIN (in-app fallback) ===== */
.login-card { max-width: 380px; margin: 100px auto; box-shadow: var(--shadow-md); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .container { margin-left: 0; padding: 20px 16px; }

  .nav {
    left: -256px;
    transition: left 0.25s ease;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
  }
  .nav.open { left: 0; }

  .burger-menu { display: block; }
  .user-info { top: 10px; right: 10px; }
  .robot-grid { grid-template-columns: 1fr; }
  .cal-grid { gap: 2px; }
  .cal-day { min-height: 56px; }
  .week-grid { grid-template-columns: repeat(3, 1fr); }
}