/* ================================================================
   WorkSphere OS – Enterprise Design System
   ================================================================ */

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

/* ---- CSS Variables ---- */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1629;
  --bg-card: #141929;
  --bg-card-hover: #1a2038;
  --bg-sidebar: #0c1120;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --accent-blue: #4f8ef7;
  --accent-blue-glow: rgba(79, 142, 247, 0.15);
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  --accent-cyan: #06b6d4;
  --text-primary: #f0f4ff;
  --text-secondary: #8892b0;
  --text-muted: #4a5568;
  --border: rgba(255,255,255,0.07);
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(79, 142, 247, 0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --sidebar-width: 260px;
  --topbar-height: 64px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }

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

/* ---- Layout ---- */
.app-layout {
  display: flex;
  min-height: 100vh;
  background: var(--bg-primary);
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  overflow-y: auto;
}
.sidebar-logo {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  min-height: var(--topbar-height);
}
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.logo-text { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.logo-sub { font-size: 10px; color: var(--text-secondary); font-weight: 400; }

.sidebar-nav { padding: 12px 0; flex: 1; }
.nav-section-title {
  font-size: 10px; font-weight: 600; letter-spacing: 1.2px;
  color: var(--text-muted); text-transform: uppercase;
  padding: 10px 20px 4px;
}
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; cursor: pointer;
  transition: var(--transition); color: var(--text-secondary);
  font-weight: 500; font-size: 13.5px; position: relative;
  border-left: 3px solid transparent;
}
.nav-item:hover {
  background: var(--glass);
  color: var(--text-primary);
  border-left-color: var(--accent-blue);
}
.nav-item.active {
  background: linear-gradient(90deg, var(--accent-blue-glow), transparent);
  color: var(--accent-blue);
  border-left-color: var(--accent-blue);
}
.nav-item .nav-icon { font-size: 17px; width: 20px; text-align: center; }
.nav-badge {
  margin-left: auto; background: var(--accent-red);
  color: white; font-size: 10px; font-weight: 700;
  padding: 2px 6px; border-radius: 20px;
}

.sidebar-user {
  padding: 16px 20px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; transition: var(--transition);
}
.sidebar-user:hover { background: var(--glass); }
.user-avatar {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: white;
  flex-shrink: 0; overflow: hidden;
}
.user-avatar img { width: 100%; height: 100%; object-fit: cover; }
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-secondary); text-transform: capitalize; }

/* ---- Main Content ---- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---- Topbar ---- */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.page-title { font-size: 18px; font-weight: 700; color: var(--text-primary); }
.page-subtitle { font-size: 12px; color: var(--text-secondary); }
.topbar-search {
  display: flex; align-items: center;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 8px; padding: 0 12px; gap: 8px;
  transition: var(--transition);
}
.topbar-search:focus-within { border-color: var(--accent-blue); background: var(--accent-blue-glow); }
.topbar-search input {
  background: none; border: none; outline: none;
  color: var(--text-primary); padding: 8px 0; width: 220px; font-size: 13px;
}
.topbar-search input::placeholder { color: var(--text-muted); }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.btn-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--glass); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition); position: relative;
  color: var(--text-secondary);
}
.btn-icon:hover { background: var(--accent-blue-glow); border-color: var(--accent-blue); color: var(--accent-blue); }
.notification-dot {
  position: absolute; top: 4px; right: 4px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-red); border: 2px solid var(--bg-secondary);
}

/* ---- Page Content ---- */
.page-content { padding: 24px; flex: 1; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
}
.card:hover { border-color: var(--glass-border); box-shadow: var(--shadow); }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.card-title { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.card-subtitle { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ---- Stat Cards ---- */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--stat-color, var(--accent-blue));
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--glass-border); }
.stat-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--stat-bg, var(--accent-blue-glow));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 14px;
}
.stat-value { font-size: 28px; font-weight: 800; color: var(--text-primary); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; font-weight: 500; }
.stat-trend { font-size: 11px; margin-top: 8px; font-weight: 600; }
.trend-up { color: var(--accent-green); }
.trend-down { color: var(--accent-red); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 8px; font-size: 13px;
  font-weight: 600; cursor: pointer; border: 1px solid transparent;
  transition: var(--transition); font-family: 'Inter', sans-serif;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #3b73e6);
  color: white; border-color: transparent;
  box-shadow: 0 4px 12px rgba(79, 142, 247, 0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79, 142, 247, 0.4); }
.btn-secondary {
  background: var(--glass); border-color: var(--border);
  color: var(--text-secondary);
}
.btn-secondary:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.btn-success { background: rgba(16,185,129,0.15); border-color: var(--accent-green); color: var(--accent-green); }
.btn-danger { background: rgba(239,68,68,0.15); border-color: var(--accent-red); color: var(--accent-red); }
.btn-warning { background: rgba(245,158,11,0.15); border-color: var(--accent-orange); color: var(--accent-orange); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 14px; }

/* ---- Form Elements ---- */
.form-label { font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; display: block; letter-spacing: 0.3px; }
.form-control {
  width: 100%; background: var(--glass); border: 1px solid var(--border);
  color: var(--text-primary); border-radius: 8px;
  padding: 9px 14px; font-size: 13px; font-family: 'Inter', sans-serif;
  transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--accent-blue); background: var(--accent-blue-glow); box-shadow: 0 0 0 3px rgba(79,142,247,0.1); }
.form-control::placeholder { color: var(--text-muted); }
.form-select {
  background: var(--glass) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238892b0' viewBox='0 0 16 16'%3E%3Cpath d='M7.293 11.707l-4-4a1 1 0 011.414-1.414L8 9.586l3.293-3.293a1 1 0 011.414 1.414l-4 4a1 1 0 01-1.414 0z'/%3E%3C/svg%3E") no-repeat right 12px center;
  appearance: none; cursor: pointer;
}
.form-check { display: flex; align-items: center; gap: 8px; }
.form-check input[type="checkbox"] { accent-color: var(--accent-blue); width: 15px; height: 15px; }

/* ---- Badges ---- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; white-space: nowrap;
}
.badge-pending { background: rgba(245,158,11,0.15); color: var(--accent-orange); border: 1px solid rgba(245,158,11,0.3); }
.badge-in_progress { background: rgba(79,142,247,0.15); color: var(--accent-blue); border: 1px solid rgba(79,142,247,0.3); }
.badge-completed { background: rgba(16,185,129,0.15); color: var(--accent-green); border: 1px solid rgba(16,185,129,0.3); }
.badge-overdue { background: rgba(239,68,68,0.15); color: var(--accent-red); border: 1px solid rgba(239,68,68,0.3); animation: pulse-red 2s infinite; }
.badge-critical { background: rgba(239,68,68,0.15); color: var(--accent-red); }
.badge-high { background: rgba(245,158,11,0.15); color: var(--accent-orange); }
.badge-medium { background: rgba(79,142,247,0.15); color: var(--accent-blue); }
.badge-low { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.badge-admin { background: rgba(139,92,246,0.15); color: var(--accent-purple); }
.badge-manager { background: rgba(6,182,212,0.15); color: var(--accent-cyan); }
.badge-employee { background: rgba(79,142,247,0.15); color: var(--accent-blue); }

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.3); }
  50% { box-shadow: 0 0 0 6px rgba(239,68,68,0); }
}

/* ---- Table ---- */
.ws-table { width: 100%; border-collapse: collapse; }
.ws-table th {
  font-size: 11px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: 12px 14px; border-bottom: 1px solid var(--border);
  text-align: left;
}
.ws-table td {
  padding: 13px 14px; border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 13px; color: var(--text-secondary); vertical-align: middle;
}
.ws-table tr:hover td { background: var(--glass); color: var(--text-primary); }
.ws-table tr:last-child td { border-bottom: none; }

/* ---- Alerts ---- */
.alert {
  padding: 12px 16px; border-radius: 8px; margin-bottom: 12px;
  font-size: 13px; display: flex; align-items: flex-start; gap: 10px;
}
.alert-danger { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); color: #fca5a5; }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2); color: #fcd34d; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.2); color: #6ee7b7; }
.alert-info { background: rgba(79,142,247,0.1); border: 1px solid rgba(79,142,247,0.2); color: #93c5fd; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: var(--transition);
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 90%; max-width: 560px;
  max-height: 90vh; overflow-y: auto;
  transform: translateY(20px) scale(0.97); transition: var(--transition);
  box-shadow: 0 25px 50px rgba(0,0,0,0.6);
}
.modal-overlay.active .modal { transform: translateY(0) scale(1); }
.modal-header {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 700; }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px 20px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ---- Progress Bar ---- */
.progress-bar-wrap { background: var(--glass); border-radius: 20px; height: 6px; overflow: hidden; }
.progress-bar-fill { height: 100%; border-radius: 20px; transition: width 1s cubic-bezier(0.4,0,0.2,1); }

/* ---- Avatar Group ---- */
.avatar { width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue)); display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: white; overflow: hidden; flex-shrink: 0; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-lg { width: 48px; height: 48px; border-radius: 12px; font-size: 18px; }
.avatar-xl { width: 72px; height: 72px; border-radius: 16px; font-size: 26px; }

/* ---- Notification Panel ---- */
.notif-panel {
  position: absolute; top: calc(100% + 8px); right: 0;
  width: 360px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); z-index: 200;
  display: none;
}
.notif-panel.active { display: block; animation: slideDown 0.2s ease; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.notif-item {
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: var(--transition);
  display: flex; gap: 10px; align-items: flex-start;
}
.notif-item:hover { background: var(--glass); }
.notif-item.unread { border-left: 3px solid var(--accent-blue); }
.notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-blue); flex-shrink: 0; margin-top: 4px; }
.notif-content { flex: 1; }
.notif-title { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.notif-msg { font-size: 12px; color: var(--text-secondary); margin-top: 2px; line-height: 1.4; }
.notif-time { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ---- Toast ---- */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 18px; min-width: 280px;
  display: flex; gap: 12px; align-items: flex-start;
  box-shadow: var(--shadow); animation: toastIn 0.3s ease;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
.toast.toast-success { border-left: 3px solid var(--accent-green); }
.toast.toast-error { border-left: 3px solid var(--accent-red); }
.toast.toast-info { border-left: 3px solid var(--accent-blue); }
.toast-icon { font-size: 18px; }
.toast-msg { font-size: 13px; color: var(--text-primary); }
.toast-sub { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ---- Login Page ---- */
.login-page {
  min-height: 100vh;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.login-bg-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none;
}
.orb-1 { width: 500px; height: 500px; background: rgba(79,142,247,0.08); top: -100px; right: -100px; }
.orb-2 { width: 400px; height: 400px; background: rgba(139,92,246,0.06); bottom: -100px; left: -100px; }
.login-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 40px; width: 100%;
  max-width: 420px; position: relative; z-index: 1;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .logo-icon { width: 56px; height: 56px; font-size: 26px; margin: 0 auto 12px; border-radius: 14px; }
.login-title { font-size: 22px; font-weight: 800; text-align: center; }
.login-sub { font-size: 13px; color: var(--text-secondary); text-align: center; margin-top: 4px; }

/* ---- Task Card ---- */
.task-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  transition: var(--transition); cursor: pointer;
  border-left: 3px solid var(--task-color, var(--border));
}
.task-card:hover { border-color: var(--task-color, var(--border)); background: var(--bg-card-hover); transform: translateY(-1px); box-shadow: var(--shadow); }
.task-card.priority-critical { --task-color: var(--accent-red); }
.task-card.priority-high { --task-color: var(--accent-orange); }
.task-card.priority-medium { --task-color: var(--accent-blue); }
.task-card.priority-low { --task-color: var(--accent-green); }
.task-title { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.task-meta { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.task-footer { margin-top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }

/* ---- Grid Layouts ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

/* ---- Chat Layout ---- */
.chat-layout { display: flex; height: calc(100vh - var(--topbar-height) - 48px); gap: 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); }
.chat-sidebar { width: 300px; background: var(--bg-sidebar); border-right: 1px solid var(--border); display: flex; flex-direction: column; }
.chat-main { flex: 1; display: flex; flex-direction: column; background: var(--bg-card); }
.chat-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.message-bubble { max-width: 70%; padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.5; }
.message-bubble.mine { background: linear-gradient(135deg, var(--accent-blue), #3b73e6); color: white; margin-left: auto; border-bottom-right-radius: 4px; }
.message-bubble.theirs { background: var(--bg-secondary); color: var(--text-primary); margin-right: auto; border-bottom-left-radius: 4px; }
.chat-input-area { padding: 16px; border-top: 1px solid var(--border); display: flex; gap: 10px; }

/* ---- Timetable Grid ---- */
.timetable-grid { display: grid; grid-template-columns: 160px repeat(5, 1fr); gap: 2px; }
.timetable-header { background: var(--bg-secondary); padding: 10px; text-align: center; font-size: 11px; font-weight: 700; color: var(--accent-blue); text-transform: uppercase; letter-spacing: 0.5px; border-radius: 6px; }
.timetable-cell { background: var(--glass); border: 1px solid var(--border); border-radius: 6px; padding: 8px; min-height: 50px; font-size: 11px; }
.shift-block { border-radius: 4px; padding: 4px 8px; margin-bottom: 2px; font-weight: 600; font-size: 11px; }
.shift-morning { background: rgba(16,185,129,0.2); color: var(--accent-green); }
.shift-afternoon { background: rgba(79,142,247,0.2); color: var(--accent-blue); }
.shift-evening { background: rgba(245,158,11,0.2); color: var(--accent-orange); }
.shift-night { background: rgba(139,92,246,0.2); color: var(--accent-purple); }

/* ---- File Upload Area ---- */
.upload-area {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 32px; text-align: center; cursor: pointer;
  transition: var(--transition); color: var(--text-muted);
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--accent-blue); background: var(--accent-blue-glow);
  color: var(--accent-blue);
}
.upload-area .upload-icon { font-size: 36px; margin-bottom: 8px; }

/* ---- Org Chart / User Cards ---- */
.user-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; text-align: center;
  transition: var(--transition);
}
.user-card:hover { border-color: var(--accent-blue); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.user-card .avatar-lg { margin: 0 auto 12px; }
.user-card .user-card-name { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.user-card .user-card-role { font-size: 11px; margin-top: 4px; }
.user-card .user-card-dept { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.skill-tag { display: inline-block; background: var(--glass); border: 1px solid var(--border); color: var(--text-secondary); padding: 2px 8px; border-radius: 4px; font-size: 10px; margin: 2px; font-family: 'JetBrains Mono', monospace; }

/* ---- AI Panel ---- */
.ai-panel {
  background: linear-gradient(135deg, rgba(79,142,247,0.08), rgba(139,92,246,0.08));
  border: 1px solid rgba(79,142,247,0.2); border-radius: var(--radius);
  padding: 16px;
}
.ai-badge { display: inline-flex; align-items: center; gap: 6px; background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); color: white; padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; margin-bottom: 10px; }
.ai-rec-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 8px; padding: 12px; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.ai-score { width: 48px; height: 48px; border-radius: 10px; background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); display: flex; flex-direction: column; align-items: center; justify-content: center; flex-shrink: 0; }
.ai-score-val { font-size: 16px; font-weight: 800; color: white; line-height: 1; }
.ai-score-label { font-size: 8px; color: rgba(255,255,255,0.7); font-weight: 600; text-transform: uppercase; }

/* ---- Overdue Alert ---- */
.overdue-banner {
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius); padding: 14px 16px;
  display: flex; align-items: center; gap: 10px;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .chat-sidebar { display: none; }
}

/* ---- Animations ---- */
.fade-in { animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Loader ---- */
.page-loader {
  position: fixed; inset: 0; background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center; z-index: 9999;
  transition: opacity 0.4s; flex-direction: column; gap: 16px;
}
.loader-ring {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--accent-blue);
  animation: spin 0.8s linear infinite;
}

/* ---- Empty State ---- */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }
.empty-state h4 { font-size: 16px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state p { font-size: 13px; }

/* ---- Knowledge Card ---- */
.knowledge-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; transition: var(--transition);
  display: flex; flex-direction: column; gap: 10px; cursor: pointer;
}
.knowledge-card:hover { border-color: var(--accent-blue); background: var(--bg-card-hover); }
.knowledge-card .kc-icon { font-size: 28px; }
.knowledge-card .kc-title { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.knowledge-card .kc-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }
.knowledge-card .kc-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 8px; border-top: 1px solid var(--border); }

/* ---- Tab Navigation ---- */
.tab-nav { display: flex; gap: 2px; background: var(--glass); border-radius: 10px; padding: 4px; margin-bottom: 20px; border: 1px solid var(--border); }
.tab-btn {
  flex: 1; padding: 8px 16px; border-radius: 7px; text-align: center;
  font-size: 13px; font-weight: 500; cursor: pointer; transition: var(--transition);
  color: var(--text-secondary); border: none; background: none;
}
.tab-btn.active { background: var(--bg-card); color: var(--text-primary); box-shadow: 0 2px 8px rgba(0,0,0,0.3); font-weight: 600; }

/* ---- Dropdown ---- */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); min-width: 180px;
  box-shadow: var(--shadow); z-index: 300;
  display: none; overflow: hidden;
  animation: slideDown 0.15s ease;
}
.dropdown-menu.open { display: block; }
.dropdown-item {
  padding: 10px 16px; font-size: 13px; cursor: pointer;
  color: var(--text-secondary); transition: var(--transition);
  display: flex; align-items: center; gap: 10px;
}
.dropdown-item:hover { background: var(--glass); color: var(--text-primary); }
.dropdown-divider { border-top: 1px solid var(--border); }

/* ---- Message Ticks (WhatsApp-style) ---- */
.msg-tick {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: -2px;
  margin-left: 2px;
  transition: color 0.3s ease;
}
.msg-tick.read {
  color: #53bdeb;
  text-shadow: 0 0 6px rgba(83, 189, 235, 0.4);
}

/* ---- Download Cards ---- */
.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}
.download-card:hover {
  border-color: var(--glass-border);
  background: var(--bg-card-hover);
}
.dl-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.dl-icon.knowledge { background: rgba(79,142,247,0.15); }
.dl-icon.task { background: rgba(245,158,11,0.15); }
.dl-icon.message { background: rgba(139,92,246,0.15); }
.dl-icon.other { background: var(--glass); }
.dl-info { flex: 1; min-width: 0; }
.dl-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dl-meta {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 3px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.dl-source {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
}
.dl-source.knowledge { background: rgba(79,142,247,0.12); color: var(--accent-blue); }
.dl-source.task { background: rgba(245,158,11,0.12); color: var(--accent-orange); }
.dl-source.message { background: rgba(139,92,246,0.12); color: var(--accent-purple); }
.dl-source.other { background: var(--glass); color: var(--text-muted); }
.dl-progress {
  width: 100%;
  height: 4px;
  background: var(--glass);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
}
.dl-progress-bar {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  transition: width 0.5s ease;
}
.dl-progress-bar.active {
  animation: dl-pulse 1.5s ease-in-out infinite;
}
@keyframes dl-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.dl-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.badge-downloading {
  background: rgba(79,142,247,0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(79,142,247,0.3);
  animation: pulse-blue 2s infinite;
}
@keyframes pulse-blue {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79,142,247,0.3); }
  50% { box-shadow: 0 0 0 4px rgba(79,142,247,0); }
}