/* ==========================================
   30th EAFONS AbstractFlow System
   Premium Design Tokens & Layout Overhaul
   ========================================== */

/* --- Design Tokens --- */
:root {
  /* Primary Colors */
  --color-primary: #0D6B8A;
  --color-primary-light: #1A8FB0;
  --color-primary-dark: #085570;
  --color-primary-rgb: 13, 107, 138;

  /* Secondary Colors */
  --color-secondary: #2BB5D4;
  --color-secondary-light: #5ECFE0;
  --color-secondary-dark: #1E96B0;

  /* Accent Colors (Royal Gold) */
  --color-accent: #C8A84E;
  --color-accent-light: #F4E8C1;
  --color-accent-dark: #A68B3A;

  /* Backgrounds */
  --color-bg-start: #F2F6F9;
  --color-bg-end: #E6EEF3;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F8FAFC;

  /* Text Tokens - High Contrast AA/AAA Compliant */
  --color-text-primary: #0F172A;
  --color-text-secondary: #334155;
  --color-text-muted: #475569;
  --color-text-subtle: #64748B;
  --color-text-inverse: #FFFFFF;

  /* Status Colors */
  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-warning: #F59E0B;
  --color-warning-bg: #FFFBEB;
  --color-error: #EF4444;
  --color-error-bg: #FEF2F2;

  /* Borders & Shadows */
  --color-border: #D5E1EA;
  --color-border-light: #EBF1F5;
  --color-border-focus: var(--color-primary);

  --shadow-xs: 0 1px 3px rgba(13, 107, 138, 0.04);
  --shadow-sm: 0 4px 8px rgba(13, 107, 138, 0.05);
  --shadow-md: 0 8px 20px rgba(13, 107, 138, 0.07);
  --shadow-lg: 0 16px 36px rgba(13, 107, 138, 0.10);

  /* Sidebar Color */
  --color-sidebar: #0D6B8A;

  /* Typography Tokens */
  --font-family-en: 'Inter', sans-serif;
  --font-family-th: 'Sarabun', sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-body: var(--font-family-th), var(--font-family-en), -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 180ms ease;
  --transition-base: 280ms ease;

  --topbar-height: 72px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-primary);
  background: linear-gradient(135deg, var(--color-bg-start) 0%, var(--color-bg-end) 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 4rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  font-weight: 700;
  line-height: 1.35;
}

h1 { font-size: 1.85rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

/* Topbar Header */
.topbar {
  min-height: 70px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light, #E2E8F0);
  box-shadow: 0 4px 20px rgba(13, 107, 138, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-fast);
}

.topbar-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.topbar-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.topbar-brand .brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-logo {
  max-height: 52px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-badge {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.76rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* Mobile Toggler */
.topbar-mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1.5px solid var(--color-border, #CBD5E1);
  background: #ffffff;
  color: var(--color-primary, #0D6B8A);
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.topbar-mobile-toggle:hover {
  background: #F1F5F9;
  border-color: var(--color-primary);
}

/* Menu Wrapper */
.topbar-menu-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.topbar-nav-items {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-nav-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Custom Dropdown System */
.custom-dropdown {
  position: relative;
  display: inline-block;
}

.custom-dropdown .dropdown-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.95rem;
  border-radius: 10px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropdown-arrow {
  font-size: 0.72rem;
  transition: transform 0.2s ease;
  opacity: 0.75;
}

.custom-dropdown.active .dropdown-arrow {
  transform: rotate(180deg);
}

.custom-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 280px;
  background: #ffffff;
  border: 1.5px solid var(--color-border, #E2E8F0);
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(13, 107, 138, 0.12), 0 4px 12px rgba(0,0,0,0.05);
  padding: 0.6rem;
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  pointer-events: none;
}

.custom-dropdown.active .custom-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.dropdown-menu-header {
  padding: 0.5rem 0.75rem 0.4rem;
}

.dropdown-header-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--color-text-subtle, #64748B);
}

.dropdown-menu-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  color: var(--color-text-primary, #0F2834);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu-item:hover {
  background: #F1F5F9;
  color: var(--color-primary, #0D6B8A);
}

.dropdown-menu-item.active {
  background: #F0F9FF;
  color: #0284C7;
  font-weight: 700;
}

.dropdown-item-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.dropdown-item-content {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.dropdown-item-title {
  font-weight: 700;
  font-size: 0.88rem;
  color: inherit;
}

.dropdown-item-desc {
  font-size: 0.75rem;
  color: var(--color-text-subtle, #64748B);
  font-weight: 400;
  margin-top: 1px;
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border-light, #F1F5F9);
  margin: 0.4rem 0;
}

/* User Profile Dropdown */
.user-profile-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: #F8FAFC;
  border: 1.5px solid var(--color-border, #CBD5E1);
  border-radius: 9999px;
  padding: 0.3rem 0.85rem 0.3rem 0.35rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.user-profile-btn:hover {
  background: #F1F5F9;
  border-color: var(--color-primary, #0D6B8A);
}

.user-avatar-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary, #0D6B8A), var(--color-secondary, #2BB5D4));
  color: #ffffff;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(13, 107, 138, 0.25);
}

.user-profile-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.user-profile-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text-primary, #0F172A);
  white-space: nowrap;
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-menu {
  min-width: 290px;
}

.user-dropdown-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 0.85rem;
}

.user-avatar-circle-lg {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary, #0D6B8A), var(--color-secondary, #2BB5D4));
  color: #ffffff;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-dropdown-header-info {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  overflow: hidden;
}

.user-dropdown-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text-primary, #0F172A);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-email {
  font-size: 0.78rem;
  color: var(--color-text-subtle, #64748B);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: var(--color-bg-start);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
  flex-shrink: 0;
}

.lang-btn {
  padding: 0.3rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

.lang-btn.active {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 6px rgba(13, 107, 138, 0.25);
}

/* Main Container Layout */
.container, .container-fluid {
  max-width: 1400px;
  margin: 1.5rem auto 0;
  padding: 0 2rem;
}

/* Cards & Section Styling */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-md);
  padding: 2rem 2.25rem;
  margin-bottom: 1.75rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card-header-styled {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--color-border-light);
}

.card-title-styled {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Form Controls */
.form-section {
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-bottom: 1.75rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:hover {
  border-color: var(--color-primary-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(13, 107, 138, 0.12);
}

/* Select Dropdown */
.form-select {
  width: 100%;
  padding: 0.55rem 2.5rem 0.55rem 0.95rem !important;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%230D6B8A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  outline: none;
  line-height: 1.4;
  transition: all var(--transition-fast);
}

.form-select:hover {
  border-color: var(--color-primary-light);
}

.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(13, 107, 138, 0.12);
}

.form-select option {
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
}

.form-select-sm {
  padding: 0.45rem 2.2rem 0.45rem 0.75rem !important;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.form-control-sm {
  padding: 0.45rem 0.75rem !important;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

.table th {
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.9rem 1rem;
  text-align: left;
  white-space: nowrap;
}

.table td {
  padding: 0.9rem 1rem;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

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

.table tr:hover td {
  background: var(--color-surface-hover);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 10px rgba(13, 107, 138, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(13, 107, 138, 0.35);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: #F1F5F9;
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

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

.btn-danger:hover {
  background: #DC2626;
  color: white;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.3px;
}

.badge-submitted { background: #E0F2FE; color: #0369A1; border: 1px solid #BAE6FD; }
.badge-under_review { background: #FEF3C7; color: #B45309; border: 1px solid #FDE68A; }
.badge-reviewed { background: #E0E7FF; color: #3730A3; border: 1px solid #C7D2FE; }
.badge-accepted { background: #DCFCE7; color: #15803D; border: 1px solid #BBF7D0; }
.badge-rejected { background: #FEE2E2; color: #B91C1C; border: 1px solid #FECACA; }
.badge-revision_required { background: #FFEDD5; color: #C2410C; border: 1px solid #FED7AA; }
.badge-draft { background: #F1F5F9; color: #475569; border: 1px solid #E2E8F0; }
.badge-withdrawn { background: #F3F4F6; color: #6B7280; border: 1px solid #E5E7EB; }

/* Stepper Progress Bar (View Submission Timeline) */
.stepper-container {
  margin: 2rem 0 1.5rem;
  padding: 1.5rem 1rem;
  background: #F8FAFC;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.stepper-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.stepper-line {
  position: absolute;
  top: 22px;
  left: 12%;
  right: 12%;
  height: 4px;
  background: var(--color-border);
  z-index: 1;
}

.stepper-line-progress {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.4s ease;
}

.stepper-node {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.stepper-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 3px solid var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 0.6rem;
  transition: all 0.3s ease;
}

.stepper-node.active .stepper-icon {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
  box-shadow: 0 0 0 6px rgba(13, 107, 138, 0.15);
}

.stepper-node.completed .stepper-icon {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.stepper-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.stepper-sub {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: 0.1rem;
}

/* Utilities */
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-secondary); }
.text-danger { color: var(--color-error); }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.75rem; }

/* Responsive adjustments */
@media (max-width: 768px) {
  .topbar { padding: 0 1rem; }
  .container { padding: 0 1rem; margin-top: 1rem; }
  .card { padding: 1.25rem; }
  .stepper-line { left: 5%; right: 5%; }
  .split-grid { grid-template-columns: 1fr !important; }
}

/* ==========================================
   Phase 4: Split View & Reviewer/Approver Styles
   ========================================== */

/* Split View Container & Layout */
.split-view-container {
  min-height: calc(100vh - var(--topbar-height));
  background: var(--color-bg-start);
}

.split-topbar {
  position: sticky;
  top: var(--topbar-height);
  z-index: 100;
  background: var(--color-surface);
}

.split-grid {
  display: grid;
  grid-template-columns: 60% 40%;
  min-height: calc(100vh - var(--topbar-height) - 50px);
  transition: all var(--transition-base);
}

.split-left {
  border-right: 1px solid var(--color-border-light);
  overflow-y: auto;
}

.split-right {
  overflow-y: auto;
}

/* Badges & Pills */
.code-badge {
  background: var(--color-bg-start);
  color: var(--color-primary-dark);
  font-family: monospace;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.type-pill {
  background: var(--color-primary-light);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

.author-pill {
  background: white;
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.author-pill.presenting-pill {
  border-color: var(--color-primary);
  background: #F0F9FF;
}

.badge-gold {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: white;
  font-weight: 700;
}

.badge-primary-light {
  background: #E0F2FE;
  color: #0284C7;
}

.live-score-badge {
  background: #FEF3C7;
  color: #B45309;
  font-size: 1rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.icon-primary { background: #E0F2FE; color: #0284C7; }
.icon-warning { background: #FEF3C7; color: #D97706; }
.icon-success { background: #DCFCE7; color: #16A34A; }
.icon-danger { background: #FEE2E2; color: #DC2626; }

.stat-details {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-top: 0.2rem;
}

/* Custom Tabs */
.custom-tabs .nav-link {
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
}

.custom-tabs .nav-link:hover {
  color: var(--color-primary);
}

.custom-tabs .nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: transparent;
}


/* ==========================================
   Auth Pages (Login & Register) Premium Styling
   ========================================== */

.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - var(--topbar-height) - 5rem);
  padding: 2.5rem 1.5rem;
  margin: 0 auto;
}

.auth-card {
  width: 100%;
  max-width: 480px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(213, 225, 234, 0.9);
  box-shadow: 0 20px 50px rgba(13, 107, 138, 0.09), 0 2px 6px rgba(0, 0, 0, 0.04);
  padding: 2.75rem 2.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 0 auto;
}

.auth-card:hover {
  box-shadow: 0 24px 60px rgba(13, 107, 138, 0.13), 0 4px 12px rgba(0, 0, 0, 0.05);
}

.auth-header {
  margin-bottom: 2rem;
}

.auth-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.3px;
  line-height: 1.25;
  margin-bottom: 0.4rem;
}

.auth-subtitle {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  line-height: 1.5;
}

.auth-form {
  margin-top: 1.5rem;
}

.auth-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.92rem;
}

.auth-link-gold {
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.auth-link-gold:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Grid & Column Layout for Forms */
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 0.25rem;
}

.form-group.col-6 {
  width: 100%;
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .auth-card {
    padding: 1.75rem 1.25rem;
    border-radius: var(--radius-lg);
  }
}

/* Block Button & Utility Helpers */
.btn-block {
  width: 100% !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

/* Animations */
.animate-slide-up {
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}


/* ==========================================
   Phase 4 UI Refinements (Score Pills, Panel Slide, Approver Redesign)
   ========================================== */

/* 1. Rating Pill Buttons & Rubric Card */
.rating-section-box {
  background: #FFFFFF;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
}

.rating-section-box:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.rating-button-group {
  margin-top: 0.5rem;
}

.rating-grid-6 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

.rating-pill-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  min-height: 38px;
  background: #FFFFFF;
  border: 1.5px solid #CBD5E1;
  border-radius: 8px;
  color: #334155;
  cursor: pointer;
  transition: all 0.16s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  padding: 0;
  outline: none;
}

.rating-pill-btn:hover {
  border-color: #0284C7;
  background: #F0F9FF;
  color: #0284C7;
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(2, 132, 199, 0.16);
}

.rating-pill-btn:focus-visible {
  border-color: #0284C7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
}

.rating-pill-btn.active {
  background: #0D6B8A !important;
  border-color: #085570 !important;
  color: #FFFFFF !important;
  box-shadow: 0 3px 8px rgba(13, 107, 138, 0.35);
  transform: translateY(-1px);
}

.rating-pill-btn .num-label {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
}

/* Rubric Mini Box & Active Tier Highlighting */
.rubric-mini-box {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.rubric-tier-item {
  padding: 4px 8px;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  color: #64748B;
}

.rubric-tier-item .tier-label {
  color: #475569;
}

.rubric-tier-item.active-tier {
  background: #EBF7FA;
  color: #0D6B8A !important;
  font-weight: 600;
  border-left-color: #0D6B8A;
  box-shadow: 0 1px 3px rgba(13, 107, 138, 0.08);
}

.rubric-tier-item.active-tier .tier-label {
  color: #0D6B8A;
  font-weight: 800;
}

/* 2. Side Panel Smooth Slide-out to Right (Wider & Responsive) */
.split-view-wrapper {
  display: flex;
  width: 100%;
  min-height: calc(100vh - var(--topbar-height) - 50px);
  position: relative;
  overflow-x: hidden;
  background: var(--color-bg-start);
}

.split-left-pane {
  flex: 1;
  min-width: 450px;
  padding: 2rem;
  overflow-y: auto;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.split-right-pane {
  width: 480px;
  min-width: 480px;
  background: #F1F5F9;
  border-left: 1px solid var(--color-border);
  box-shadow: -10px 0 30px rgba(13, 107, 138, 0.09);
  padding: 1rem 0.85rem;
  overflow-y: auto;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), margin-right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  z-index: 90;
}

.split-right-pane.collapsed {
  transform: translateX(100%);
  margin-right: -480px;
}


/* 3. Approver Dashboard Tabs Fix (Removes bullets) */
.approver-tabs-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0;
  margin: 0 0 1.75rem 0;
  list-style: none !important;
}

.approver-tab-item {
  list-style: none !important;
  margin: 0;
  padding: 0;
}

.approver-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.approver-tab-btn:hover {
  background: #F1F5F9;
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}

.approver-tab-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(13, 107, 138, 0.25);
}

.approver-tab-btn .tab-badge {
  background: rgba(0, 0, 0, 0.08);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}

.approver-tab-btn.active .tab-badge {
  background: var(--color-accent);
  color: var(--color-text-primary);
}


/* 4. Approver Decision Form Card UI */
.reviewer-eval-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  height: 100%;
  transition: transform 0.2s ease;
}

.reviewer-eval-card:hover {
  box-shadow: var(--shadow-md);
}

.decision-options-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

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

.decision-card-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1rem;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.decision-card-btn:hover {
  border-color: var(--color-primary-light);
  background: #F8FAFC;
}

.decision-card-btn.selected-accept {
  border-color: var(--color-success);
  background: #ECFDF5;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.2);
}

.decision-card-btn.selected-revision {
  border-color: var(--color-warning);
  background: #FFFBEB;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.2);
}

.decision-card-btn.selected-reject {
  border-color: var(--color-error);
  background: #FEF2F2;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.2);
}

.decision-card-btn.selected-turnback {
  border-color: #0284C7;
  background: #F0F9FF;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.2);
}

.decision-card-btn .decision-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.decision-card-btn .decision-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary);
}


/* 5. Chart.js Canvas Centering & Box Ratios */
.chart-box-center {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  margin: 0 auto !important;
  position: relative;
  width: 100%;
}

.chart-box-center canvas {
  margin: 0 auto !important;
  display: block !important;
}


/* 6. User Table Action Form Inline Styling */
.user-action-form {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.user-action-form select {
  font-size: 0.82rem;
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: #FAFCFD;
}


/* 7. Comprehensive Multi-Device Responsiveness (PC, Laptop, Tablet, Telephone) */
@media (max-width: 992px) {
  .topbar {
    padding: 0.75rem 1.25rem;
    height: auto;
    min-height: 64px;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .topbar-brand {
    flex: 1;
  }

  .topbar-nav {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .split-view-wrapper {
    flex-direction: column;
  }

  .split-left-pane {
    min-width: 100%;
    padding: 1rem;
  }

  .split-right-pane {
    width: 100%;
    min-width: 100%;
    border-left: none;
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -10px 30px rgba(13, 107, 138, 0.09);
    margin-right: 0 !important;
    transform: none !important;
  }

  .split-right-pane.collapsed {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.85rem;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.1rem; }

  .approver-tabs-container {
    gap: 0.35rem;
  }

  .approver-tab-btn {
    padding: 0.5rem 0.85rem;
    font-size: 0.82rem;
  }

  .rating-grid-6 {
    gap: 6px;
  }

  .rating-pill-btn {
    height: 42px;
    min-height: 42px;
    font-size: 1rem;
  }

  .custom-table th, .custom-table td {
    padding: 0.65rem 0.4rem;
    font-size: 0.83rem;
  }

  .user-action-form {
    flex-wrap: wrap;
    justify-content: flex-start;
  }
}

/* 8. Single-Line Type of Work Pill Badge */
.type-pill {
  display: inline-block !important;
  white-space: nowrap !important;
  padding: 0.35rem 0.85rem !important;
  background: var(--color-bg-start) !important;
  color: var(--color-primary-dark) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-full) !important;
  font-size: 0.8rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.2px !important;
  text-align: center !important;
  line-height: 1.2 !important;
}

/* 9. Polished Empty States across Author, Reviewer, Approver Tables */
.empty-state {
  text-align: center;
  padding: 3.5rem 2rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
  margin: 1.5rem 0;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
  opacity: 0.75;
}

.empty-state-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.4rem;
}

.empty-state-desc {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  max-width: 440px;
  margin: 0 auto 1.25rem;
  line-height: 1.5;
}

/* 10. Custom Error Pages Styling (404, 403, 500) */
.error-page-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--topbar-height) - 8rem);
  padding: 2.5rem 1.25rem;
}

.error-card {
  max-width: 520px;
  width: 100%;
  text-align: center;
  padding: 3rem 2.25rem;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-lg);
}

.error-code-badge {
  display: inline-block;
  font-size: 3.8rem;
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.error-icon {
  font-size: 3.2rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

.error-message {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

/* ==========================================
   Premium Toast Notifications
   ========================================== */

.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
  max-width: 420px;
  width: 100%;
}

.toast {
  pointer-events: auto;
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 44px 16px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.5);
  overflow: hidden;
  animation: toastSlideIn 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transform: translateX(120%);
  will-change: transform, opacity;
}

.toast.toast-dismiss {
  animation: toastSlideOut 0.35s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}

/* Left accent bar */
.toast-accent {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 14px 0 0 14px;
}

/* Icon container */
.toast-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  margin-top: 1px;
}

/* Body */
.toast-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toast-title {
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.3;
}

.toast-message {
  font-size: 0.9rem;
  font-weight: 450;
  line-height: 1.5;
  color: var(--color-text-secondary);
  word-break: break-word;
}

/* Close button */
.toast-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  color: var(--color-text-muted);
  opacity: 0.5;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast-close:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.06);
}

/* Progress bar (auto-dismiss) */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 0 0 14px 14px;
  animation: toastProgress 5s linear forwards;
  will-change: width;
}

/* ---- Category Themes ---- */

/* Success */
.toast-success .toast-accent { background: #10B981; }
.toast-success .toast-icon {
  background: #ECFDF5;
  color: #059669;
}
.toast-success .toast-title { color: #065F46; }
.toast-success .toast-progress { background: linear-gradient(90deg, #10B981, #34D399); }

/* Danger / Error */
.toast-danger .toast-accent { background: #EF4444; }
.toast-danger .toast-icon {
  background: #FEF2F2;
  color: #DC2626;
}
.toast-danger .toast-title { color: #991B1B; }
.toast-danger .toast-progress { background: linear-gradient(90deg, #EF4444, #F87171); }

/* Warning */
.toast-warning .toast-accent { background: #F59E0B; }
.toast-warning .toast-icon {
  background: #FFFBEB;
  color: #D97706;
}
.toast-warning .toast-title { color: #92400E; }
.toast-warning .toast-progress { background: linear-gradient(90deg, #F59E0B, #FBBF24); }

/* Info */
.toast-info .toast-accent { background: #3B82F6; }
.toast-info .toast-icon {
  background: #EFF6FF;
  color: #2563EB;
}
.toast-info .toast-title { color: #1E40AF; }
.toast-info .toast-progress { background: linear-gradient(90deg, #3B82F6, #60A5FA); }

/* ---- Animations ---- */
@keyframes toastSlideIn {
  from {
    transform: translateX(120%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes toastSlideOut {
  from {
    transform: translateX(0);
    opacity: 1;
    max-height: 200px;
    margin-bottom: 0;
  }
  to {
    transform: translateX(120%);
    opacity: 0;
    max-height: 0;
    margin-bottom: -12px;
    padding-top: 0;
    padding-bottom: 0;
  }
}

@keyframes toastProgress {
  from { width: 100%; }
  to { width: 0%; }
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .toast-container {
    right: 12px;
    left: 12px;
    max-width: none;
    top: 70px;
  }

  .toast {
    border-radius: 12px;
  }
}

/* =======================================================
   CONFERENCE REGISTRATION SYSTEM — PREMIUM DESIGN SYSTEM
   ======================================================= */

.reg-page-wrapper {
  max-width: 1140px;
  margin: 2rem auto;
  padding: 0 1.25rem;
}

/* --- Hero Banner --- */
.reg-hero-banner {
  background: linear-gradient(135deg, #0A3D4F 0%, #0D6B8A 60%, #1A8FB0 100%);
  border-radius: 20px;
  padding: 3rem 2.5rem;
  color: #ffffff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(13, 107, 138, 0.15);
  margin-bottom: 2.5rem;
}

.reg-hero-banner::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(200, 168, 78, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.reg-hero-content {
  position: relative;
  z-index: 1;
}

.reg-badge-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #C8A84E;
  color: #1A202C;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(200, 168, 78, 0.3);
}

.reg-hero-title {
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.5rem;
  line-height: 1.25;
}

.reg-hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
}

.reg-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.8);
}

.reg-hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.reg-hero-meta-item i {
  color: #C8A84E;
}

/* --- Registration Portals (Thai vs Intl) --- */
.reg-portal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.reg-portal-card {
  background: #ffffff;
  border-radius: 20px;
  border: 1.5px solid #E2E8F0;
  padding: 2rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.reg-portal-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(13, 107, 138, 0.08);
}

.reg-portal-card.thai-portal {
  border-top: 6px solid #0D6B8A;
}

.reg-portal-card.intl-portal {
  border-top: 6px solid #C8A84E;
}

.reg-portal-header {
  margin-bottom: 1.5rem;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.reg-portal-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
  align-self: flex-start;
}

.thai-portal .reg-portal-tag {
  background: #EBF5F9;
  color: #0D6B8A;
}

.intl-portal .reg-portal-tag {
  background: #FFF9E6;
  color: #8C6D1F;
}

.reg-portal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0F2834;
  margin-bottom: 0.35rem;
}

.reg-portal-desc {
  font-size: 0.92rem;
  color: #5A7D8A;
}

/* Pricing & Category Boxes inside Portal Card */
.reg-pricing-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem;
  margin-bottom: 1.15rem;
}

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

.reg-pricing-box {
  background: #F8FAFC;
  border: 1.5px solid var(--color-border-light, #E2E8F0);
  border-radius: 14px;
  padding: 1.35rem 1.25rem;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  height: 100%;
  min-height: 155px;
}

.reg-pricing-box:hover {
  background: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 6px 18px rgba(13, 107, 138, 0.09);
  transform: translateY(-2px);
}

.intl-portal .reg-pricing-box:hover {
  border-color: #C8A84E;
  box-shadow: 0 6px 18px rgba(200, 168, 78, 0.12);
}

.reg-pricing-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.45rem;
}

.reg-pricing-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.thai-portal .reg-pricing-icon {
  background: #EBF5F9;
  color: var(--color-primary, #0D6B8A);
}

.intl-portal .reg-pricing-icon {
  background: #FCF7E8;
  color: #8C6D1F;
}

.reg-pricing-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary, #0F2834);
  margin: 0;
}

.reg-pricing-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary, #64748B);
  line-height: 1.5;
  margin: 0;
  min-height: 44px;
  display: flex;
  align-items: flex-start;
}

/* Full-width Pre-conference Bar */
.reg-preconf-bar {
  border-radius: 14px;
  padding: 1.15rem 1.35rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  transition: all var(--transition-fast);
  min-height: 76px;
  flex-wrap: wrap;
}

.thai-preconf-bar {
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
}

.thai-preconf-bar:hover {
  background: #ffffff;
  border-color: var(--color-primary, #0D6B8A);
  box-shadow: 0 6px 18px rgba(13, 107, 138, 0.08);
  transform: translateY(-2px);
}

.intl-preconf-bar {
  background: #FCFBF7;
  border: 1.5px solid #EAE3D2;
}

.intl-preconf-bar:hover {
  background: #ffffff;
  border-color: #C8A84E;
  box-shadow: 0 6px 18px rgba(200, 168, 78, 0.12);
  transform: translateY(-2px);
}

.reg-btn-portal {
  display: block;
  width: 100%;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
  border-radius: 10px;
  text-decoration: none;
  transition: all var(--transition-fast);
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.reg-btn-portal-primary {
  background: var(--color-primary);
  color: #ffffff;
  border: 1.5px solid var(--color-primary);
}

.reg-btn-portal-primary:hover {
  background: var(--color-primary-dark);
  color: #ffffff;
  border-color: var(--color-primary-dark);
}

.reg-btn-portal-outline-thai,
.reg-btn-portal-outline {
  background: transparent;
  color: var(--color-primary, #0D6B8A);
  border: 1.5px solid var(--color-primary, #0D6B8A);
}

.reg-btn-portal-outline-thai:hover,
.reg-btn-portal-outline:hover {
  background: var(--color-bg-start, #EBF5F9);
  color: var(--color-primary, #0D6B8A);
  border-color: var(--color-primary, #0D6B8A);
}

.reg-btn-portal-gold {
  background: var(--color-accent);
  color: #1A202C;
  border: 1.5px solid var(--color-accent);
}

.reg-btn-portal-gold:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
  border-color: var(--color-accent-dark);
}

.reg-btn-portal-outline-gold {
  background: transparent;
  color: #8C6D1F;
  border: 1.5px solid #C8A84E;
}

.reg-btn-portal-outline-gold:hover {
  background: #FCF7E8;
  color: #715514;
  border-color: #B38E33;
}

/* Co-Host Inline Bar */
.reg-cohost-bar {
  background: #F8FAFC;
  border: 1.5px dashed var(--color-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}

.reg-cohost-bar-header {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.reg-cohost-form {
  display: flex;
  gap: 0.5rem;
}

.reg-cohost-input {
  flex: 1;
  font-size: 0.88rem;
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.reg-cohost-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 13, 107, 138), 0.15);
}

.reg-cohost-btn {
  padding: 0.45rem 1rem;
  background: #475569;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.85rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.reg-cohost-btn:hover {
  background: #334155;
}

/* --- Form Page Layout & Styling --- */
.reg-form-card {
  background: var(--color-surface);
  border-radius: 20px;
  border: 1.5px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  margin-bottom: 3rem;
}

.reg-form-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 2.25rem 2.5rem;
  color: #ffffff;
}

.reg-form-header h2 {
  color: #ffffff;
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.reg-form-header p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  margin: 0;
}

.reg-form-body {
  padding: 2.5rem;
}

/* Sections */
.reg-form-section {
  padding-bottom: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1.5px solid var(--color-border-light);
}

.reg-form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.reg-section-title-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.reg-section-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg-start);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.reg-section-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
}

/* Form Grid & Inputs */
.reg-grid {
  display: grid;
  gap: 1.25rem;
}

.reg-grid-1 { grid-template-columns: 1fr; }
.reg-grid-2 { grid-template-columns: 1fr 1fr; }
.reg-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.reg-grid-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
.reg-grid-title-row { grid-template-columns: 140px 180px 1fr 1fr; }

.reg-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.reg-field label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.reg-field label .req {
  color: var(--color-error);
  font-weight: 700;
}

.reg-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-family: inherit;
}

.reg-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3.5px rgba(var(--color-primary-rgb, 13, 107, 138), 0.15);
}

.reg-control::placeholder {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

select.reg-control {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748B' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  appearance: none;
}

textarea.reg-control {
  resize: vertical;
  min-height: 90px;
}

.reg-field-error {
  font-size: 0.82rem;
  color: var(--color-error);
  font-weight: 500;
  margin-top: 0.2rem;
}

.reg-field-hint {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

/* Category Selection Tiles */
.reg-category-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.reg-category-tile {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  justify-content: space-between;
  align-items: center;
  outline: none;
}

.reg-category-tile:hover {
  border-color: var(--color-primary);
  background: #F8FAFC;
}

.reg-category-tile:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb, 13, 107, 138), 0.25);
  background: #F8FAFC;
}

.reg-category-tile.active {
  border-color: var(--color-primary);
  background: var(--color-bg-start);
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb, 13, 107, 138), 0.12);
}

.reg-category-tile-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.2rem;
}

.reg-category-tile-info p {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.reg-category-tile-price {
  text-align: right;
}

.reg-category-tile-price .price-val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.reg-category-tile-price .price-tag {
  font-size: 0.78rem;
  color: #059669;
  font-weight: 600;
}

/* Radio Group Chips (Food / Receipt) */
.reg-radio-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.reg-radio-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #F8FAFC;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  padding: 0.6rem 1.15rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-primary);
  min-height: 44px;
}

.reg-radio-chip:hover {
  border-color: var(--color-primary-light);
  background: #F1F5F9;
}

.reg-radio-chip:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 13, 107, 138), 0.15);
}

.reg-radio-chip input[type="radio"] {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* Warning & Notice Box */
.reg-notice-box {
  background: var(--color-warning-bg);
  border: 1.5px solid #FDE68A;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.reg-notice-icon {
  font-size: 1.5rem;
  color: var(--color-warning);
}

.reg-notice-text {
  font-size: 0.9rem;
  color: #92400E;
  font-weight: 600;
  line-height: 1.5;
}

/* Submit Action Button */
.reg-submit-btn-wrap {
  text-align: center;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  margin-bottom: 0.5rem;
}

.reg-submit-btn {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 1rem 3.5rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(var(--color-primary-rgb, 13, 107, 138), 0.25);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 48px;
}

.reg-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(var(--color-primary-rgb, 13, 107, 138), 0.35);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.reg-submit-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Responsive Rules for Topbar and Mobile Drawer */
@media (max-width: 991.98px) {
  .topbar {
    padding: 0.5rem 1.25rem;
    min-height: 64px;
    position: sticky;
  }
  
  .topbar-mobile-toggle {
    display: inline-flex;
  }

  .brand-logo {
    max-height: 44px;
  }

  .brand-text strong {
    font-size: 1rem;
  }

  .topbar-menu-wrapper {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 2px solid var(--color-border, #CBD5E1);
    box-shadow: 0 20px 40px rgba(13, 107, 138, 0.14);
    padding: 1.25rem 1.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    z-index: 1050;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    animation: topbarSlideDown 0.22s ease-out forwards;
  }

  .topbar-menu-wrapper.show {
    display: flex;
  }

  .topbar-nav-items {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }

  .topbar-nav-items .btn,
  .topbar-nav-items .custom-dropdown,
  .topbar-nav-items .custom-dropdown .dropdown-toggle-btn {
    width: 100%;
    justify-content: space-between;
  }

  .custom-dropdown-menu {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    box-shadow: none;
    border: 1px solid var(--color-border-light, #E2E8F0);
    margin-top: 0.4rem;
    border-radius: 12px;
    background: #F8FAFC;
    width: 100%;
  }

  .custom-dropdown:not(.active) .custom-dropdown-menu {
    display: none;
  }

  .custom-dropdown.active .custom-dropdown-menu {
    display: block;
  }

  .user-profile-btn {
    width: 100%;
    justify-content: space-between;
    border-radius: 12px;
    padding: 0.6rem 0.85rem;
  }

  .user-profile-meta {
    flex-grow: 1;
    justify-content: space-between;
  }

  .user-profile-name {
    max-width: none;
  }

  .auth-nav-links {
    flex-direction: column;
    width: 100%;
  }

  .auth-nav-links .btn {
    width: 100%;
    justify-content: center;
  }
}

@keyframes topbarSlideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .reg-portal-grid {
    grid-template-columns: 1fr;
  }
  .reg-grid-3, .reg-grid-4, .reg-grid-title-row {
    grid-template-columns: 1fr 1fr;
  }
  .reg-category-selector {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .topbar {
    padding: 0.4rem 0.85rem;
  }
  .brand-text strong {
    font-size: 0.92rem;
  }
  .brand-sub {
    font-size: 0.7rem;
  }
  .brand-logo {
    max-height: 38px;
  }
  .reg-hero-banner {
    padding: 2rem 1.5rem;
  }
  .reg-hero-title {
    font-size: 1.6rem;
  }
  .reg-form-body {
    padding: 1.5rem;
  }
  .reg-grid-2, .reg-grid-3, .reg-grid-4, .reg-grid-title-row, .reg-pricing-subgrid {
    grid-template-columns: 1fr;
  }
  .reg-submit-btn {
    width: 100%;
    padding: 0.9rem 1.5rem;
    font-size: 1.05rem;
  }
}

/* Role Badges */
.role-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  letter-spacing: 0.4px;
  display: inline-block;
}
.role-badge.role-admin { background: #2563EB; color: #FFFFFF; }
.role-badge.role-checkin { background: #0D9488; color: #FFFFFF; }
.role-badge.role-reviewer { background: #EA580C; color: #FFFFFF; }
.role-badge.role-approver { background: #16A34A; color: #FFFFFF; }
.role-badge.role-user { background: rgba(0,0,0,0.06); color: #475569; }

/* ==========================================
   Global Custom Modal System (Academic Grade)
   ========================================== */
.custom-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1050;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow-y: auto;
}

.custom-modal-card {
  background: #FFFFFF;
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  margin: auto;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: customModalScaleIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.custom-modal-card.modal-lg {
  max-width: 860px;
}

.custom-modal-card.modal-xl {
  max-width: 980px;
}

@keyframes customModalScaleIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.custom-modal-header {
  padding: 1.25rem 1.75rem;
  background: #F8FAFC;
  border-bottom: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.custom-modal-title {
  margin: 0;
  font-weight: 700;
  font-size: 1.15rem;
  color: #0F172A;
  font-family: var(--font-heading, sans-serif);
}

.custom-modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: #64748B;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.custom-modal-close:hover {
  background: #E2E8F0;
  color: #0F172A;
}

.custom-modal-body {
  padding: 1.75rem;
  overflow-y: auto;
  flex: 1 1 auto;
}

.custom-modal-footer {
  padding: 1rem 1.75rem;
  background: #F8FAFC;
  border-top: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.d-none {
  display: none !important;
}

.d-block {
  display: block !important;
}

.d-inline-block {
  display: inline-block !important;
}

.d-flex {
  display: flex !important;
}

.d-inline-flex {
  display: inline-flex !important;
}

/* Margin and Gap Utilities */
.me-1 { margin-right: 0.25rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 0.75rem !important; }
.me-4 { margin-right: 1rem !important; }

.ms-1 { margin-left: 0.25rem !important; }
.ms-2 { margin-left: 0.5rem !important; }
.ms-3 { margin-left: 0.75rem !important; }
.ms-auto { margin-left: auto !important; }

.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 0.75rem !important; }
.mb-4 { margin-bottom: 1rem !important; }

.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 0.75rem !important; }

.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 0.75rem !important; }
.gap-4 { gap: 1rem !important; }
.gap-5 { gap: 1.5rem !important; }

/* Author Preview Row Component */
.author-preview-row {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
  transition: all 0.2s ease;
}

.author-preview-row.is-presenter {
  background: #F0F9FF;
  border: 1.5px solid #0284C7;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.1);
}

.author-preview-row:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Keywords Chip / Tag Input Component & Structured Abstract
   ========================================================================== */
.keywords-chip-container {
  background: #FFFFFF;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: all var(--transition-fast);
}

.keywords-chip-container:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(13, 107, 138, 0.12);
}

.tags-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  min-height: 28px;
  align-items: center;
  margin-bottom: 0.85rem;
}

.tags-wrapper:empty {
  display: none;
  margin-bottom: 0;
}

.tag-input-box {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 0.85rem !important;
  width: 100%;
}

.tag-input-box input#keywordInputField {
  flex: 1 1 auto !important;
  width: auto !important;
  min-width: 0 !important;
  height: 44px !important;
  font-size: 0.92rem !important;
  border-radius: 8px !important;
  margin: 0 !important;
}

.tag-input-box #addTagBtn {
  flex: 0 0 auto !important;
  height: 44px !important;
  padding: 0 1.5rem !important;
  font-weight: 700 !important;
  font-size: 0.92rem !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.4rem !important;
  white-space: nowrap !important;
  border-radius: 8px !important;
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  color: #FFFFFF !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
}

.tag-input-box #addTagBtn:hover {
  background-color: var(--color-primary-dark) !important;
  border-color: var(--color-primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(13, 107, 138, 0.2) !important;
}

.keyword-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: #EFF6FF;
  color: #1D4ED8;
  border: 1.5px solid #BFDBFE;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.08);
  animation: fadeInTag 0.2s ease-out;
}

@keyframes fadeInTag {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.chip-remove-btn {
  background: transparent;
  border: none;
  color: #3B82F6;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.15s ease;
}

.chip-remove-btn:hover {
  color: #DC2626;
  background: rgba(220, 38, 38, 0.12);
}

.structured-abstract-field {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Global Pagination Button Styles */
.pagination-btn {
  padding: 6px 12px;
  border-radius: 6px;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  color: #475569;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  font-family: inherit;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.pagination-btn:hover { background: #F1F5F9; color: #0F2834; text-decoration: none; }
.pagination-btn.active { background: var(--color-primary, #0D6B8A); color: #FFFFFF; border-color: var(--color-primary, #0D6B8A); }
.pagination-btn.disabled { opacity: 0.5; pointer-events: none; }