/* ==========================================================================
   4Achievers LLP — Digital Fee Receipt System v1.1
   Enterprise UI/UX Design System
   ========================================================================== */

:root {
  /* Brand Color Tokens */
  --primary: #1e3a8a;
  --primary-hover: #172554;
  --primary-light: #eff6ff;
  --accent: #2563eb;
  --navy: #0f172a;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;

  /* Functional Status Colors */
  --emerald-600: #059669;
  --emerald-500: #10b981;
  --emerald-50: #ecfdf5;
  --amber-600: #d97706;
  --amber-500: #f59e0b;
  --amber-50: #fffbeb;
  --red-600: #dc2626;
  --red-500: #ef4444;
  --red-50: #fef2f2;
  --purple-600: #7c3aed;
  --purple-50: #f5f3ff;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);

  /* Shadows & Elevation */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--slate-50);
  color: var(--slate-800);
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Navigation Topbar
   ========================================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  height: 44px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
}

.brandmark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary) 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.5px;
}

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

.brand-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 500;
  color: var(--slate-500);
  letter-spacing: 0.1px;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--slate-100);
  padding: 5px;
  border-radius: 9999px;
  border: 1px solid var(--slate-200);
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--slate-600);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--navy);
  background: rgba(255, 255, 255, 0.6);
}

.nav-tab.active {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
}

.nav-tab-admin {
  color: var(--primary);
}

.nav-tab-admin.active {
  background: var(--primary);
  color: var(--white);
}

/* ==========================================================================
   Layout Shell & Hero Section
   ========================================================================== */

.shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.hero {
  padding: 10px 0 32px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--accent);
  text-transform: uppercase;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-500);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 48px);
  line-height: 1.15;
  letter-spacing: -1.5px;
  color: var(--navy);
  margin: 12px 0 16px;
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  max-width: 720px;
  color: var(--slate-600);
  font-size: 15.5px;
  line-height: 1.65;
  margin: 0;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 22px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--white);
  padding: 6px 14px;
  border-radius: 9999px;
  border: 1px solid var(--slate-200);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--slate-700);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Tab Navigation Pane Management
   ========================================================================== */

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Cards & Panels
   ========================================================================== */

.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 28px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--slate-100);
}

.card-header h2 {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.5px;
  color: var(--navy);
  margin: 6px 0 4px;
}

.subtitle {
  color: var(--slate-500);
  font-size: 13.5px;
  margin: 0;
}

.shield-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--primary-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.max-w-700 {
  max-width: 720px;
  margin: 0 auto;
}

.max-w-500 {
  max-width: 480px;
  margin: 40px auto;
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.form-section {
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--slate-200);
}

.form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 10px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.section-step {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  color: var(--white);
  background: var(--slate-800);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-title h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
}

.section-title small {
  font-size: 12px;
  color: var(--slate-500);
}

.grid {
  display: grid;
  gap: 18px;
}

.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.full {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
}

input, select, textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  color: var(--navy);
  outline: none;
  transition: all 0.15s ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

input[type="file"] {
  padding: 9px;
  font-size: 12.5px;
  background: var(--slate-50);
}

input[type="file"]::file-selector-button {
  border: none;
  background: var(--slate-200);
  color: var(--navy);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12px;
  margin-right: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}

input[type="file"]::file-selector-button:hover {
  background: var(--slate-300);
}

.hint {
  font-size: 11.5px;
  color: var(--slate-500);
  line-height: 1.4;
}

/* ==========================================================================
   Live Dynamic Fee Ledger Calculator Box
   ========================================================================== */

.ledger-calculator-box {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  margin: 6px 0;
}

.ledger-calc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--slate-700);
  margin-bottom: 14px;
}

.ledger-calc-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.ledger-calc-metrics div {
  background: var(--white);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
}

.ledger-calc-metrics small {
  display: block;
  font-size: 11px;
  color: var(--slate-500);
  font-weight: 600;
}

.ledger-calc-metrics strong {
  display: block;
  font-size: 19px;
  font-family: var(--font-display);
  color: var(--navy);
  margin-top: 2px;
}

.text-primary { color: var(--primary) !important; }
.text-amber { color: var(--amber-600) !important; }
.text-emerald { color: var(--emerald-600) !important; }

/* Consent Checkbox */
.consent-box {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 24px 0;
}

.checkbox-label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--slate-700);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--primary);
}

/* Form Action Buttons */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 11px 20px;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 2px 4px rgba(30, 58, 138, 0.2);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 8px rgba(30, 58, 138, 0.3);
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--white);
  color: var(--slate-700);
  border-color: var(--slate-300);
}

.btn-secondary:hover {
  background: var(--slate-50);
  border-color: var(--slate-400);
  color: var(--navy);
}

.btn-large {
  padding: 15px 24px;
  font-size: 15.5px;
  font-weight: 700;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

.privacy-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--slate-500);
  margin: 6px 0 0;
  text-align: center;
}

/* ==========================================================================
   Badges, Status Pills & Results
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 9px;
  border-radius: 9999px;
  text-transform: uppercase;
}

.badge-primary { background: var(--primary-light); color: var(--accent); }
.badge-success { background: var(--emerald-50); color: var(--emerald-600); }
.badge-amber { background: var(--amber-50); color: var(--amber-600); }

.status-pill {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 9999px;
}

.status-pill.PENDING { background: var(--amber-50); color: var(--amber-600); border: 1px solid #fde68a; }
.status-pill.VERIFIED { background: var(--emerald-50); color: var(--emerald-600); border: 1px solid #a7f3d0; }
.status-pill.REJECTED { background: var(--red-50); color: var(--red-600); border: 1px solid #fecaca; }
.status-pill.CANCELLED { background: #f3f4f6; color: #6b7280; border: 1px solid #d1d5db; }
.status-pill.DUPLICATE { background: #fee2e2; color: #b91c1c; font-weight: 800; border: 1px solid #f87171; }

/* Submission Feedback Card */
.submission-result-card {
  margin-top: 24px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: #f0fdf4;
  border: 1px solid #86efac;
  color: #166534;
  animation: fadeIn 0.3s ease;
}

.not-a-receipt-banner {
  background: #fef2f2;
  border: 1px dashed #f87171;
  color: #991b1b;
  font-weight: 800;
  font-size: 12.5px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  text-align: center;
  letter-spacing: 0.5px;
}

.submission-ref-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 16px 0;
}

.submission-ref-grid div {
  background: var(--white);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid #bbf7d0;
}

.submission-ref-grid small {
  display: block;
  font-size: 11px;
  color: #15803d;
  font-weight: 600;
}

.submission-ref-grid code {
  font-size: 15px;
  font-weight: 700;
  color: #166534;
}

/* ==========================================================================
   Admin Console & Review Queue
   ========================================================================== */

.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--slate-200);
}

.admin-topbar h2 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--navy);
  margin: 4px 0 2px;
}

.admin-topbar-actions {
  display: flex;
  gap: 10px;
}

/* Stat Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.stat-card small {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--slate-500);
}

.stat-card strong {
  display: block;
  font-size: 24px;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--navy);
  margin-top: 4px;
}

.stat-pending strong { color: var(--amber-600); }
.stat-verified strong { color: var(--emerald-600); }
.stat-duplicate strong { color: var(--red-600); }
.stat-revenue strong { color: var(--primary); font-size: 21px; }

/* Admin Sub Navigation */
.admin-subnav {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--slate-200);
  margin-bottom: 20px;
}

.admin-subtab {
  padding: 10px 18px;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--slate-500);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s ease;
}

.admin-subtab:hover {
  color: var(--navy);
}

.admin-subtab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.admin-subpane {
  display: none;
}

.admin-subpane.active {
  display: block;
}

/* Filters Bar */
.filter-bar {
  display: grid;
  grid-template-columns: 1fr 160px 160px auto auto;
  gap: 10px;
  margin-bottom: 20px;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrap svg {
  position: absolute;
  left: 12px;
  color: var(--slate-400);
}

.search-input-wrap input {
  padding-left: 38px;
}

/* Payment Review Cards */
.payments-list {
  display: grid;
  gap: 14px;
}

.payment-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.payment-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--slate-300);
}

.payment-card.flagged {
  border-left: 5px solid var(--red-500);
}

.payment-card-main h4 {
  margin: 0 0 6px;
  font-size: 17px;
  font-family: var(--font-display);
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

.payment-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: var(--slate-600);
  margin-bottom: 8px;
}

.payment-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.payment-details-row {
  font-size: 12px;
  color: var(--slate-500);
  margin: 4px 0;
}

.payment-actions-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
}

.payment-amount {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  color: var(--navy);
}

.action-buttons {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

/* Counsellor Directory Grid */
.counsellors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.counsellor-card {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 16px;
}

.counsellor-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.counsellor-card h4 {
  margin: 0;
  font-size: 15px;
  color: var(--navy);
}

.counsellor-meta {
  font-size: 12px;
  color: var(--slate-500);
  line-height: 1.5;
}

.counsellor-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--slate-200);
}

/* Audit Log List */
.audit-list {
  display: grid;
  gap: 8px;
  font-size: 12px;
}

.audit-item {
  padding: 10px 14px;
  background: var(--slate-50);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--slate-400);
}

/* ==========================================================================
   Modals & Popups
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-large {
  max-width: 820px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--slate-200);
}

.modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-family: var(--font-display);
  color: var(--navy);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--slate-400);
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: var(--navy);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--slate-100);
}

.proof-viewer-body {
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--slate-100);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.proof-viewer-body img {
  max-width: 100%;
  max-height: 65vh;
  object-fit: contain;
}

.proof-viewer-body iframe {
  width: 100%;
  height: 65vh;
  border: none;
}

/* ==========================================================================
   Toast Alerts
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
}

.toast {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--navy);
  color: var(--white);
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.25s ease;
}

.toast-success { background: #065f46; border-left: 4px solid #34d399; }
.toast-error { background: #991b1b; border-left: 4px solid #f87171; }
.toast-info { background: #1e3a8a; border-left: 4px solid #60a5fa; }

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

/* ==========================================================================
   Verification Certificate Page (QR Destination)
   ========================================================================== */

.cert-card {
  background: var(--white);
  border: 2px solid #bbf7d0;
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 20px;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.08);
}

.cert-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #dcfce7;
}

.cert-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #dcfce7;
  color: #059669;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-title h3 {
  margin: 0;
  font-size: 18px;
  color: #065f46;
}

.cert-title p {
  margin: 2px 0 0;
  font-size: 12px;
  color: #047857;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  font-size: 13px;
}

.cert-field small {
  display: block;
  font-size: 11px;
  color: var(--slate-500);
}

.cert-field strong {
  color: var(--navy);
  font-size: 14.5px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  border-top: 1px solid var(--slate-200);
  background: var(--white);
  padding: 30px 20px;
  color: var(--slate-500);
  font-size: 12px;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.text-right {
  text-align: right;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.demo-creds-hint {
  margin-top: 16px;
  padding: 12px;
  background: var(--slate-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
  font-size: 12px;
  color: var(--slate-600);
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 900px) {
  .topbar-inner {
    height: auto;
    padding: 12px 16px;
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-tabs {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .filter-bar {
    grid-template-columns: 1fr 1fr;
  }
  .filter-bar .search-input-wrap {
    grid-column: 1 / -1;
  }
  .payment-card {
    grid-template-columns: 1fr;
  }
  .payment-actions-col {
    align-items: flex-start;
  }
  .footer-inner {
    flex-direction: column;
    text-align: left;
  }
  .text-right {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 16px 12px 40px;
  }
  .card {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }
  .two {
    grid-template-columns: 1fr;
  }
  .ledger-calc-metrics {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .submission-ref-grid {
    grid-template-columns: 1fr;
  }
  .cert-grid {
    grid-template-columns: 1fr;
  }
}