/* ═══════════════════════════════════════════
   LabSCH Manager — Dark Theme
   ═══════════════════════════════════════════ */

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2128;
  --bg-hover: #1f242d;
  --border: #30363d;
  --border-light: #3b424c;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #3fb950;
  --success-bg: #0d2818;
  --danger: #f85149;
  --danger-bg: #2d1215;
  --warning: #d29922;
  --warning-bg: #2d2208;
  --info: #58a6ff;
  --info-bg: #0c2d6b;
  --sidebar-w: 220px;
  --radius: 8px;
  --radius-sm: 6px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ═══════ LOGIN ═══════ */
#login-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
}
.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 100%; max-width: 400px;
  text-align: center;
}
.login-logo { font-size: 2.5rem; margin-bottom: 0.25rem; }
.login-sub { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 0.95rem; }
.login-card label { display: block; text-align: left; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.3rem; margin-top: 0.8rem; }
.login-card input {
  width: 100%; padding: 0.6rem 0.75rem;
  background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 0.95rem; outline: none; transition: border-color 0.2s;
}
.login-card input:focus { border-color: var(--accent); }
.error-text { color: var(--danger); font-size: 0.85rem; margin-top: 0.5rem; }

/* ═══════ BUTTONS ═══════ */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem; border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer;
  font-size: 0.85rem; font-weight: 500;
  background: var(--bg-tertiary); color: var(--text-primary);
  transition: all 0.15s; white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); border-color: var(--border-light); text-decoration: none; }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #da3633; }
.btn-warning { background: var(--warning); border-color: var(--warning); color: #000; }
.btn-warning:hover { background: #bb8009; }
.btn-success { background: var(--success); border-color: var(--success); color: #000; }
.btn-success:hover { background: #2ea043; }
.btn-info { background: var(--info); border-color: var(--info); color: #fff; }
.btn-info:hover { background: #4090e0; }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-secondary); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-hover); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; }

/* ═══════ LAYOUT ═══════ */
#app { display: flex; min-height: 100vh; }
#sidebar {
  width: var(--sidebar-w); min-height: 100vh;
  background: var(--bg-secondary); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; z-index: 100;
  transition: transform 0.3s;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 1.2rem 1rem; font-size: 1.2rem; font-weight: 700;
  border-bottom: 1px solid var(--border);
}
.logo-icon { font-size: 1.4rem; }
.sidebar-footer { padding: 0.75rem 1rem; border-top: 1px solid var(--border); margin-top: auto; }

#nav { flex: 1; padding: 0.5rem 0; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 1rem; margin: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  transition: all 0.15s; text-decoration: none;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); text-decoration: none; }
.nav-item.active { background: var(--accent); color: #fff; }
.nav-icon { font-size: 1rem; width: 1.4rem; text-align: center; }

#content {
  flex: 1; margin-left: var(--sidebar-w);
  padding: 1.5rem 2rem; max-width: 1200px;
}

#mobile-bar {
  display: none; position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border);
  padding: 0.5rem 1rem; align-items: center; justify-content: space-between;
}
.mobile-title { font-weight: 700; font-size: 1.1rem; }

/* ═══════ VIEW ═══════ */
.view { display: none; }
.view.active { display: block; animation: fadeIn 0.2s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 1.2rem; }
h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.view-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.view-header h1 { margin-bottom: 0; }
.header-actions { display: flex; gap: 0.5rem; align-items: center; }

/* ═══════ CARDS ═══════ */
.card {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.card-header h3 { margin-bottom: 0; }
.card-desc { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 0.75rem; }
.mt-3 { margin-top: 1rem; }

/* ═══════ STATS ═══════ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem; text-align: center;
  border-top: 3px solid var(--border);
}
.stat-total { border-top-color: var(--accent); }
.stat-online { border-top-color: var(--success); }
.stat-offline { border-top-color: var(--text-muted); }
.stat-pending { border-top-color: var(--warning); }
.stat-num { font-size: 2rem; font-weight: 700; line-height: 1; }
.stat-total .stat-num { color: var(--accent); }
.stat-online .stat-num { color: var(--success); }
.stat-offline .stat-num { color: var(--text-muted); }
.stat-pending .stat-num { color: var(--warning); }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.3rem; }

/* ═══════ GRIDS ═══════ */
.grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

/* ═══════ QUICK ACTIONS ═══════ */
.quick-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ═══════ TABLE ═══════ */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
th { color: var(--text-secondary); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: var(--bg-hover); }
.status-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 0.4rem;
}
.status-dot.online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--text-muted); }
.name-cell { font-weight: 500; cursor: pointer; color: var(--accent); }
.name-cell:hover { text-decoration: underline; }

/* ═══════ INPUTS ═══════ */
.input-group { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.input-grow { flex: 1; }
.input-sm { padding: 0.35rem 0.6rem; background: var(--bg-primary); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-primary); font-size: 0.85rem; }
input[type="text"], input[type="url"], input[type="password"], select {
  padding: 0.5rem 0.75rem;
  background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 0.85rem; outline: none; transition: border-color 0.2s;
}
input:focus, select:focus { border-color: var(--accent); }
select { cursor: pointer; }
select option { background: var(--bg-secondary); color: var(--text-primary); }

/* ═══════ TAG LIST ═══════ */
.tag-list {
  list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem;
  max-height: 300px; overflow-y: auto; padding: 0; margin: 0;
}
.tag-item {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.6rem; border-radius: 999px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  font-size: 0.8rem; color: var(--text-primary);
}
.tag-remove {
  cursor: pointer; color: var(--text-muted); font-size: 0.9rem; line-height: 1;
  transition: color 0.15s;
}
.tag-remove:hover { color: var(--danger); }

/* ═══════ PROFILES ═══════ */
.profiles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-top: 1rem; }
.profile-card {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem;
}
.profile-card h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.profile-meta { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.75rem; }
.profile-actions { display: flex; gap: 0.4rem; }

/* ═══════ TOGGLE ═══════ */
.toggle-row { display: flex; align-items: center; gap: 1rem; padding: 0.5rem 0; }
.toggle-label { min-width: 100px; font-size: 0.9rem; }
.toggle-status { font-size: 0.8rem; color: var(--text-secondary); }
.toggle-switch { position: relative; width: 44px; height: 24px; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--text-muted); border-radius: 24px;
  transition: 0.3s;
}
.toggle-slider::before {
  content: ''; position: absolute; width: 18px; height: 18px;
  left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%;
  transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ═══════ EVENTS ═══════ */
.event-list { max-height: 500px; overflow-y: auto; }
.event-item {
  display: flex; gap: 0.75rem; padding: 0.5rem 0;
  border-bottom: 1px solid var(--border); font-size: 0.85rem;
  align-items: flex-start;
}
.event-item.compact { padding: 0.3rem 0; }
.event-time { color: var(--text-muted); white-space: nowrap; min-width: 60px; font-size: 0.8rem; }
.event-type {
  padding: 0.1rem 0.4rem; border-radius: 4px;
  font-size: 0.75rem; font-weight: 500; white-space: nowrap;
}
.event-type.info { background: var(--info-bg); color: var(--info); }
.event-type.warn { background: var(--warning-bg); color: var(--warning); }
.event-type.error { background: var(--danger-bg); color: var(--danger); }
.event-type.success { background: var(--success-bg); color: var(--success); }
.event-client { color: var(--text-secondary); min-width: 80px; }
.event-detail { color: var(--text-secondary); flex: 1; word-break: break-word; }
.empty-state { text-align: center; color: var(--text-muted); padding: 2rem; }

/* ═══════ BADGE ═══════ */
.badge {
  display: inline-block; padding: 0.2rem 0.5rem;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  border-radius: 999px; font-size: 0.75rem; color: var(--text-secondary);
}

/* ═══════ MODAL ═══════ */
#modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center;
}
.modal {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.5rem; width: 90%; max-width: 500px;
  max-height: 80vh; overflow-y: auto;
}
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.modal-header h3 { margin: 0; }

/* ═══════ TOAST ═══════ */
#toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 300; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  padding: 0.75rem 1.2rem; border-radius: var(--radius-sm);
  background: var(--bg-secondary); border: 1px solid var(--border);
  font-size: 0.85rem; box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  animation: slideIn 0.3s; max-width: 350px;
}
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.info { border-color: var(--accent); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ═══════ UTILS ═══════ */
.hidden { display: none !important; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-warning { color: var(--warning); }
.mono { font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace; font-size: 0.8rem; }

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); box-shadow: 4px 0 20px rgba(0,0,0,0.5); }
  #mobile-bar { display: flex; }
  #content { margin-left: 0; padding: 1rem; padding-top: 3.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2col, .grid-3col { grid-template-columns: 1fr; }
  .profiles-grid { grid-template-columns: 1fr; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* Loading spinner */
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }