/* ============================================
   HEXNEXUS - Modern CSS Framework
   Theme: Clean, Light, Mobile-First
   Inspired by: Next.js + Tailwind + Laravel
   ============================================ */

/* ---------- ROOT VARIABLES ---------- */
:root {
  /* Primary Colors */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  /* Neutral Colors */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Semantic Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Spacing */
  --sidebar-width: 260px;
  --navbar-height: 64px;
  --border-radius: 12px;
  --card-radius: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg:
    0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl:
    0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- RESET & BASE ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ---------- LAYOUT ---------- */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* ---------- SIDEBAR ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: white;
  border-right: 1px solid var(--gray-200);
  padding: 20px 16px;
  overflow-y: auto;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px 24px 12px;
  border-bottom: 1px solid var(--gray-100);
  margin-bottom: 20px;
}

.sidebar-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.sidebar-brand .brand-text {
  font-weight: 700;
  font-size: 18px;
  color: var(--gray-900);
}

.sidebar-brand .brand-text span {
  color: var(--primary-600);
}

.sidebar-brand .brand-sub {
  font-size: 11px;
  color: var(--gray-500);
  font-weight: 400;
  display: block;
  margin-top: -2px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-nav .nav-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 12px 8px 12px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--border-radius);
  color: var(--gray-600);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.sidebar-nav a:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.sidebar-nav a.active {
  background: var(--primary-50);
  color: var(--primary-700);
}

.sidebar-nav a .icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-nav a .badge {
  margin-left: auto;
  background: var(--primary-500);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--gray-100);
}

.sidebar-footer .user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
}

.sidebar-footer .user-info:hover {
  background: var(--gray-100);
}

.sidebar-footer .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.sidebar-footer .user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-800);
}

.sidebar-footer .user-role {
  font-size: 12px;
  color: var(--gray-500);
}

/* ---------- MAIN CONTENT ---------- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: sticky;
  top: 0;
  background: white;
  border-bottom: 1px solid var(--gray-200);
  padding: 0 32px;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.9);
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar-left .menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--gray-600);
  padding: 4px;
}

.navbar-left .page-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-900);
}

.navbar-left .page-title span {
  color: var(--gray-500);
  font-weight: 400;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar-right .search-box {
  display: flex;
  align-items: center;
  background: var(--gray-100);
  border-radius: 999px;
  padding: 6px 16px;
  gap: 8px;
  transition: var(--transition);
}

.navbar-right .search-box:focus-within {
  background: white;
  box-shadow: 0 0 0 2px var(--primary-400);
}

.navbar-right .search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--gray-700);
  min-width: 180px;
  padding: 4px 0;
}

.navbar-right .search-box input::placeholder {
  color: var(--gray-400);
}

.navbar-right .icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--gray-600);
  transition: var(--transition);
  position: relative;
}

.navbar-right .icon-btn:hover {
  background: var(--gray-100);
}

.navbar-right .icon-btn .notification-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid white;
}

/* ---------- DASHBOARD CONTENT ---------- */
.content {
  padding: 24px 32px;
}

/* ---------- STATS CARDS ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: white;
  border-radius: var(--card-radius);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 12px;
}

.stat-card .stat-icon.blue {
  background: var(--primary-100);
  color: var(--primary-600);
}

.stat-card .stat-icon.green {
  background: #d1fae5;
  color: var(--success);
}

.stat-card .stat-icon.yellow {
  background: #fef3c7;
  color: var(--warning);
}

.stat-card .stat-icon.red {
  background: #fee2e2;
  color: var(--danger);
}

.stat-card .stat-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
}

.stat-card .stat-change {
  font-size: 12px;
  font-weight: 500;
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stat-card .stat-change.positive {
  color: var(--success);
}

.stat-card .stat-change.negative {
  color: var(--danger);
}

/* ---------- CHART & TABLE GRID ---------- */
.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.content-grid-full {
  grid-template-columns: 1fr;
}

/* ---------- CARDS ---------- */
.card {
  background: white;
  border-radius: var(--card-radius);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header .card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.card-header .card-action {
  font-size: 13px;
  color: var(--primary-600);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.card-header .card-action:hover {
  color: var(--primary-800);
}

.card-body {
  padding: 20px 24px;
}

/* ---------- TABLE ---------- */
.table-responsive {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table thead th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--gray-500);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--gray-200);
}

.table tbody td {
  padding: 12px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.table tbody tr:hover {
  background: var(--gray-50);
}

.table .status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.table .status-badge.active {
  background: #d1fae5;
  color: #065f46;
}

.table .status-badge.pending {
  background: #fef3c7;
  color: #92400e;
}

.table .status-badge.completed {
  background: #dbeafe;
  color: #1e40af;
}

.table .status-badge.cancelled {
  background: #fee2e2;
  color: #991b1b;
}

/* ---------- TASK ITEMS ---------- */
.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}

.task-item:last-child {
  border-bottom: none;
}

.task-item .task-check {
  width: 18px;
  height: 18px;
  border: 2px solid var(--gray-300);
  border-radius: 4px;
  flex-shrink: 0;
  cursor: pointer;
  transition: var(--transition);
}

.task-item .task-check.done {
  background: var(--primary-500);
  border-color: var(--primary-500);
}

.task-item .task-info {
  flex: 1;
}

.task-item .task-info .task-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-800);
}

.task-item .task-info .task-title.done {
  text-decoration: line-through;
  color: var(--gray-400);
}

.task-item .task-info .task-meta {
  font-size: 12px;
  color: var(--gray-400);
}

.task-item .task-priority {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
}

.task-item .task-priority.high {
  background: #fee2e2;
  color: #991b1b;
}

.task-item .task-priority.medium {
  background: #fef3c7;
  color: #92400e;
}

.task-item .task-priority.low {
  background: #d1fae5;
  color: #065f46;
}

/* ---------- LOGIN PAGE ---------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8edff 100%);
  padding: 20px;
}

.login-container {
  background: white;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-xl);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
}

.login-container .login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-container .login-logo .logo-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--border-radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.login-container .login-logo h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
}

.login-container .login-logo h1 span {
  color: var(--primary-600);
}

.login-container .login-logo p {
  color: var(--gray-500);
  font-size: 14px;
  margin-top: 4px;
}

.login-container .form-group {
  margin-bottom: 20px;
}

.login-container .form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.login-container .form-group input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  font-size: 14px;
  transition: var(--transition);
  background: var(--gray-50);
}

.login-container .form-group input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  outline: none;
  background: white;
}

.login-container .form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: 13px;
}

.login-container .form-options label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--gray-600);
  cursor: pointer;
}

.login-container .form-options a {
  color: var(--primary-600);
  font-weight: 500;
}

.login-container .btn-primary {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.login-container .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.login-container .login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--gray-500);
}

/* ---------- RESPONSIVE MOBILE ---------- */
@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* Sidebar mobile */
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
  }

  .sidebar-overlay.active {
    display: block;
  }

  .main-content {
    margin-left: 0;
  }

  /* Navbar mobile */
  .navbar {
    padding: 0 16px;
  }

  .navbar-left .menu-toggle {
    display: block;
  }

  .navbar-left .page-title span {
    display: none;
  }

  .navbar-right .search-box {
    display: none;
  }

  .navbar-right .search-box.mobile-show {
    display: flex;
    position: absolute;
    top: 64px;
    left: 16px;
    right: 16px;
    background: white;
    box-shadow: var(--shadow-lg);
    padding: 8px 16px;
    border-radius: var(--border-radius);
  }

  /* Content mobile */
  .content {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-card .stat-value {
    font-size: 22px;
  }

  /* Login mobile */
  .login-container {
    padding: 32px 24px;
    margin: 16px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card .stat-value {
    font-size: 20px;
  }

  .card-body {
    padding: 16px;
  }

  .card-header {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }
}

/* ---------- UTILITY CLASSES ---------- */
.text-center {
  text-align: center;
}
.text-muted {
  color: var(--gray-500);
}
.mb-2 {
  margin-bottom: 8px;
}
.mb-4 {
  margin-bottom: 16px;
}
.mb-6 {
  margin-bottom: 24px;
}
.flex {
  display: flex;
}
.items-center {
  align-items: center;
}
.gap-2 {
  gap: 8px;
}
.gap-4 {
  gap: 16px;
}
.justify-between {
  justify-content: space-between;
}