/* IT Following Payment Page Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-dark: #0B192C;
  --bg-dark-secondary: #1E3E62;
  --accent-blue: #008DDA;
  --accent-blue-hover: #0077B8;
  --accent-cyan: #41C9E2;
  --bg-light: #F8FAFC;
  --bg-light-secondary: #F1F5F9;
  
  --card-bg: #FFFFFF;
  --card-border: #E2E8F0;
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-light: #FFFFFF;

  --success-green: #10B981;
  --success-bg: #ECFDF5;
  --warning-amber: #F59E0B;
  --warning-bg: #FFFBEB;
  --danger-red: #EF4444;

  --font-main: 'Outfit', sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(11, 25, 44, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(11, 25, 44, 0.12);
  --shadow-accent: 0 10px 25px -5px rgba(0, 141, 218, 0.35);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-light);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-secondary) 100%);
  color: var(--text-light);
  padding: 18px 32px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2.5px solid var(--accent-blue);
  box-shadow: 0 0 15px rgba(0, 141, 218, 0.5);
  object-fit: cover;
  background-color: #fff;
}

.brand-info h1 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 11px;
  background: rgba(65, 201, 226, 0.15);
  color: var(--accent-cyan);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid rgba(65, 201, 226, 0.3);
}

.brand-info p {
  font-size: 13px;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.main-wrapper {
  max-width: 1280px;
  width: 100%;
  margin: 28px auto;
  padding: 0 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 18px;
  transition: var(--transition);
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 141, 218, 0.1);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.stat-details h4 {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-details .value {
  font-size: 24px;
  font-weight: 800;
  color: var(--bg-dark);
  font-family: var(--font-heading);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 992px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

.app-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--card-border);
  background: #FAFAFC;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--bg-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-body {
  padding: 28px;
  flex: 1;
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-label span.req {
  color: var(--danger-red);
}

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

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  padding-left: 44px;
  font-size: 15px;
  font-family: var(--font-main);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-light);
  color: var(--text-primary);
  transition: var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-blue);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(0, 141, 218, 0.12);
}

.form-input.no-icon {
  padding-left: 16px;
}

.amount-presets {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.preset-btn {
  background: var(--bg-light-secondary);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.preset-btn:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.quick-tags {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.tag-btn {
  font-size: 12px;
  background: #F1F5F9;
  border: 1px solid #CBD5E1;
  color: #475569;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.tag-btn:hover {
  background: #E2E8F0;
  color: var(--bg-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue) 0%, #006BB6 100%);
  color: var(--text-light);
  box-shadow: var(--shadow-accent);
  width: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -4px rgba(0, 141, 218, 0.45);
}

.btn-secondary {
  background: var(--bg-light-secondary);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn-secondary:hover {
  background: #E2E8F0;
}

.btn-outline-blue {
  background: transparent;
  color: var(--accent-blue);
  border: 1.5px solid var(--accent-blue);
}

.btn-outline-blue:hover {
  background: rgba(0, 141, 218, 0.08);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.preview-card {
  height: 100%;
  min-height: 520px;
}

.preview-frame-container {
  width: 100%;
  height: 100%;
  min-height: 480px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #F4F6F9;
  position: relative;
}

.preview-iframe {
  width: 100%;
  height: 100%;
  min-height: 480px;
  border: none;
}

.empty-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 400px;
  color: var(--text-muted);
  text-align: center;
  padding: 30px;
}

.empty-preview i {
  font-size: 54px;
  margin-bottom: 16px;
  color: #CBD5E1;
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.custom-table th {
  background: var(--bg-light-secondary);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 14px 18px;
  border-bottom: 2px solid var(--card-border);
}

.custom-table td {
  padding: 16px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-pending {
  background-color: var(--warning-bg);
  color: var(--warning-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-paid {
  background-color: var(--success-bg);
  color: var(--success-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 25, 44, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 18px;
  color: var(--bg-dark);
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
}

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

.modal-body {
  padding: 24px;
}

.app-footer {
  background: var(--bg-dark);
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
  margin-top: 40px;
  font-size: 13px;
}

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