:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary: #0f2027;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
}

body {
  font-family: "Inter", sans-serif;
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
  color: var(--text-main);
}

/* Navbar */
.navbar {
  background-color: var(--secondary);
  color: white;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  font-weight: 500;
}

.user-badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 5px 15px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.logout-btn {
  background-color: var(--danger);
  color: white;
  border: none;
  padding: 8px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  background-color: #dc2626;
  transform: translateY(-1px);
}

/* Main Container */
.container {
  padding: 40px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.welcome-section {
  margin-bottom: 40px;
  text-align: left;
}

.welcome-section h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 10px 0;
  color: var(--text-main);
}

.welcome-section p {
  color: var(--text-muted);
  margin: 0;
  font-size: 15px;
}

/* Module Grid */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.module-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 30px 25px;
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.02),
    0 10px 15px rgba(0, 0, 0, 0.03);
  border: 1px solid #e2e8f0;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.module-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  border-color: #cbd5e1;
}

.card-dashboard {
  border-top: 4px solid #0ea5e9;
}

.card-entry {
  border-top: 4px solid var(--primary);
}

.card-view {
  border-top: 4px solid var(--success);
}

.card-db {
  border-top: 4px solid #8b5cf6;
}

.card-excel {
  border-top: 4px solid #10b981;
}

.card-rules {
  border-top: 4px solid var(--warning);
}

.card-pending {
  border-top: 4px solid #f97316;
}

.card-invoice {
  border-top: 4px solid #2563eb;
}

.card-report,
.card-admin {
  border-top: 4px solid #9333ea;
}

.card-vendor {
  border-top: 4px solid #ef4444;
}

.module-icon {
  font-size: 32px;
  margin-bottom: 15px;
  background: #f1f5f9;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.module-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.module-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.arrow-icon {
  position: absolute;
  bottom: 25px;
  right: 25px;
  font-size: 18px;
  color: #94a3b8;
  transition:
    transform 0.3s ease,
    color 0.3s ease;
}

.module-card:hover .arrow-icon {
  transform: translateX(5px);
  color: var(--primary);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(2px);
}

.modal-box {
  background: white;
  padding: 25px;
  border-radius: 12px;
  width: 750px;
  max-width: 95%;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  animation: slideDown 0.2s ease;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-box.small {
  width: 500px;
}

.modal-box.alert {
  width: 350px;
  text-align: center;
}

.modal-box h3 {
  margin-top: 0;
  color: #0f2027;
  font-size: 20px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-box.alert h3 {
  justify-content: center;
  border-bottom: none;
  margin-bottom: 5px;
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: #ef4444;
}

@keyframes slideDown {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Forms & Tables */
.control-group {
  display: flex;
  gap: 15px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

select,
input[type="number"],
input[type="text"],
input[type="file"] {
  padding: 10px 15px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  background-color: #fff;
  transition: border-color 0.2s;
}

select:focus,
input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-success {
  background-color: var(--success);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-success:hover {
  background-color: #059669;
}

.btn-warning {
  background-color: var(--warning);
  color: #000;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-warning:hover {
  opacity: 0.8;
}

.table-wrapper {
  overflow-x: hidden;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  margin-top: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  font-size: 13px;
}

th,
td {
  padding: 10px;
  text-align: center;
  border-bottom: 1px solid #e2e8f0;
}

th:first-child,
td:first-child {
  text-align: left;
}

th {
  background-color: #f8fafc;
  color: var(--secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

tbody tr:hover {
  background-color: #f8f9fa;
}

tbody tr:last-child td {
  border-bottom: none;
}

#rulesTable input[type="text"] {
  width: 160px;
  padding: 8px;
  font-size: 13px;
}

#rulesTable input[type="number"] {
  width: 80px;
  padding: 8px;
  text-align: center;
  font-size: 13px;
}

.new-rule-row {
  background-color: #f8fafc;
  border-top: 2px solid #cbd5e1;
}

#importStatus {
  display: inline-block;
  margin-left: 15px;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 4px;
  font-weight: 600;
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 15px;
    padding: 15px;
  }

  .user-info {
    width: 100%;
    justify-content: space-between;
  }

  .table-wrapper {
    overflow-x: auto;
  }
}

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

/* =======================================================
   DARK MODE SYSTEM & DROPDOWN MENU OVERRIDES
   ======================================================= */

/* --- 1. System Variables (Default Light Mode handled at top, overriding here for Dark) --- */
body.dark-mode {
  --bg-color: #0f172a; /* Deep dark blue background */
  --card-bg: #1e293b; /* Slightly lighter dark card */
  --text-main: #e2e8f0; /* Light text */
  --text-muted: #94a3b8;
  --secondary: #020617; /* Very dark navbar */
}

/* Base Body Application */
body {
  transition:
    background-color 0.3s,
    color 0.3s;
}

/* Modals inside Dark Mode */
body.dark-mode .modal-box {
  background-color: var(--card-bg);
  border: 1px solid #334155;
  color: var(--text-main);
}
body.dark-mode .modal-box h3,
body.dark-mode .modal-box p {
  color: var(--text-main) !important;
}
body.dark-mode select,
body.dark-mode input[type="number"],
body.dark-mode input[type="text"],
body.dark-mode input[type="file"] {
  background-color: #0f172a;
  color: var(--text-main);
  border-color: #334155;
}
body.dark-mode table {
  background-color: var(--card-bg);
  color: var(--text-main);
}
body.dark-mode th {
  background-color: #0f172a;
  color: #e2e8f0;
  border-color: #334155;
}
body.dark-mode td {
  border-color: #334155;
}
body.dark-mode tbody tr:hover {
  background-color: #334155;
}
body.dark-mode .new-rule-row {
  background-color: #0f172a;
  border-top: 2px solid #334155;
}
/* --- 2. PC & Mobile View Toggle Logic --- */

/* PC specific styles */
.theme-btn {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 8px 15px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
  font-family: "Inter", sans-serif;
}
.theme-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}
.mobile-profile-container {
  display: none; /* Hidden on PC by default */
  position: relative;
}

/* Dropdown Menu Styles (For Mobile) */
.mobile-icon-btn {
  background: rgba(255, 255, 255, 0.1);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  user-select: none;
}
.user-context-menu {
  position: absolute;
  top: 120%;
  right: 0;
  background: var(--card-bg);
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  display: none;
  flex-direction: column;
  z-index: 5000;
  min-width: 150px;
  overflow: hidden;
}
body.dark-mode .user-context-menu {
  border-color: #334155;
}
.user-context-menu button {
  background: none;
  border: none;
  padding: 12px 15px;
  text-align: left;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-main);
  font-weight: 600;
  font-family: "Inter", sans-serif;
}
.user-context-menu button:hover {
  background: #f1f5f9;
}
body.dark-mode .user-context-menu button:hover {
  background: #334155;
}
.menu-divider {
  height: 1px;
  background: #e2e8f0;
}
body.dark-mode .menu-divider {
  background: #334155;
}
.text-danger {
  color: #ef4444 !important;
}

/* --- 3. Mobile Adjustments --- */
@media (max-width: 768px) {
  .navbar {
    flex-direction: row; /* Keep it single line */
    justify-content: space-between;
    padding: 15px;
  }
  .user-info {
    width: auto;
  }

  /* Hide PC elements on mobile */
  .pc-only {
    display: none !important;
  }

  /* Show Mobile Icon & Dropdown container */
  .mobile-profile-container {
    display: block;
  }

  .table-wrapper {
    overflow-x: auto;
  }
}