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

:root {
  --primary-color: #37AFCC;
  --primary-dark: #2A8FA8;
  --primary-light: #EBF8FA;
  --primary-border: #B3E3EC;
  --bg-color: #F4F8FA;
  --card-bg: #FFFFFF;
  --text-main: #2B3A42;
  --text-muted: #62757D;
  --success-color: #28A745;
  --warning-color: #FFC107;
  --danger-color: #DC3545;
  --border-radius: 10px;
  --box-shadow: 0 4px 16px rgba(55, 175, 204, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
}

/* Header Navbar */
.app-header {
  background-color: var(--card-bg);
  border-bottom: 2px solid #E2E8F0;
  padding: 10px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

.brand-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  height: 48px;
  max-width: 220px;
  width: auto;
  object-fit: contain;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1E3E62;
  line-height: 1.3;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Logout Icon Button (Clean & Modern) */
.btn-logout-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #E11D48;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.btn-logout-icon:hover {
  background: #FFE4E6;
  border-color: #FDA4AF;
  color: #BE123C;
  transform: translateY(-1px);
  box-shadow: 0 3px 6px rgba(225, 29, 72, 0.15);
}

.btn-logout-icon:active {
  transform: translateY(0);
}

.btn-logout-icon svg {
  display: block;
}

/* Unified Navigation Tabs */
.nav-tabs {
  display: flex;
  background: var(--card-bg);
  padding: 0 24px;
  border-bottom: 1px solid #E2E8F0;
  gap: 4px;
  overflow-x: auto;
}

.tab-btn, .nav-tab {
  padding: 10px 18px;
  border: none;
  background: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover, .nav-tab:hover {
  color: var(--primary-dark);
}

.tab-btn.active, .nav-tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  background: rgba(30, 94, 149, 0.03);
}

/* Main Container */
.main-content {
  max-width: 1560px;
  margin: 20px auto;
  padding: 0 16px;
}

/* Cards & Layout */
.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--box-shadow);
  border: 1px solid #E2E8F0;
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Forms & Buttons */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #CBD5E1;
  border-radius: 6px;
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(55, 175, 204, 0.15);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-success {
  background-color: var(--success-color);
  color: white;
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-outline {
  background: white;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-light);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 12px;
}

.badge-waiting {
  background: #FEF3C7;
  color: #92400E;
}

.badge-testing {
  background: #E0F2FE;
  color: #0369A1;
}

.badge-submitted {
  background: #DCFCE7;
  color: #15803D;
}

/* Progress Bar */
.progress-bar-bg {
  background-color: #E2E8F0;
  border-radius: 10px;
  height: 10px;
  width: 100%;
  overflow: hidden;
}

.progress-bar-fill {
  background-color: var(--primary-color);
  height: 100%;
  transition: width 0.3s ease;
}

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

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.table th, .table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #E2E8F0;
  font-size: 0.9rem;
}

.table th {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
}

.table tr:hover {
  background-color: #F8FAFC;
}

/* Grid System */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Tag Badges */
.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  background: #E0E7FF;
  color: #3730A3;
  border: 1px solid #C7D2FE;
  margin: 2px;
  white-space: nowrap;
}

.tag-badge-emerald {
  background: #D1FAE5;
  color: #065F46;
  border-color: #A7F3D0;
}

.tag-badge-amber {
  background: #FEF3C7;
  color: #92400E;
  border-color: #FDE68A;
}

/* Bulk Action Bar */
.bulk-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: 8px;
  padding: 10px 16px;
  margin-bottom: 16px;
  animation: fadeIn 0.2s ease-in-out;
}

.bulk-action-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Pagination */
.pagination-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px 6px;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: var(--text-color);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.page-btn:hover:not(:disabled) {
  background: #F1F5F9;
  border-color: #94A3B8;
  color: var(--primary-dark);
}

.page-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #FFFFFF;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Footer Developer Credit */
.app-footer {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 40px;
  border-top: 1px solid #E2E8F0;
}