/* ==========================================================================
   Component Styles: Buttons, Cards, Modals, Forms, Tabs & Interactive Elements
   ========================================================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  line-height: 1.25;
  transition: all var(--transition-normal);
  text-decoration: none;
  border: 1.5px solid transparent;
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary-600);
  color: #ffffff;
  border-color: var(--primary-600);
  box-shadow: 0 4px 14px rgba(8, 57, 159, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-700);
  border-color: var(--primary-700);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(8, 57, 159, 0.35);
  transform: translateY(-2px);
}

.btn-accent, .btn-secondary-brand {
  background-color: var(--secondary-500);
  color: #ffffff;
  border-color: var(--secondary-500);
  box-shadow: 0 4px 14px rgba(1, 167, 85, 0.25);
}

.btn-accent:hover, .btn-secondary-brand:hover {
  background-color: var(--secondary-600);
  border-color: var(--secondary-600);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(1, 167, 85, 0.35);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--navy-900);
  color: #ffffff;
  border-color: var(--navy-900);
  box-shadow: 0 4px 14px rgba(13, 27, 42, 0.2);
}

.btn-secondary:hover {
  background-color: var(--navy-800);
  border-color: var(--navy-800);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--accent-400), var(--accent-500));
  color: #0d1b2a;
  border-color: var(--accent-400);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(201, 151, 50, 0.35);
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--accent-300), var(--accent-400));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 151, 50, 0.45);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--primary-600);
  color: var(--primary-600);
}

.btn-outline:hover {
  background-color: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-700);
}

.btn-outline-white {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-white {
  background-color: #ffffff;
  color: var(--navy-900);
  border-color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background-color: #f8fafc;
  color: var(--primary-700);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 0.95rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.9rem 1.85rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* --- Cards --- */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-normal);
  position: relative;
}

.card-hover {
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-emerald {
  background-color: var(--primary-100);
  color: var(--primary-700);
}

.badge-navy {
  background-color: var(--navy-100);
  color: var(--navy-800);
}

.badge-gold {
  background-color: var(--accent-100);
  color: var(--accent-700);
}

.badge-rate {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: #ffffff;
  padding: 0.4rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(8, 57, 159, 0.25);
  border: 1px solid var(--secondary-400);
}

/* --- Tab Filters --- */
.filter-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-10);
  padding: 0.35rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  width: fit-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.filter-btn {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-btn:hover {
  color: var(--primary-700);
  background-color: var(--primary-50);
}

.filter-btn.active {
  background-color: var(--primary-600);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(8, 57, 159, 0.25);
}

/* --- Forms & Inputs --- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 0.4rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: #ffffff;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary-600);
  box-shadow: 0 0 0 3.5px rgba(8, 57, 159, 0.15);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* --- Range Sliders (Calculator) --- */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: #e2e8f0;
  outline: none;
  margin: 1rem 0;
  cursor: pointer;
  transition: background 0.2s;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-600);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(8, 57, 159, 0.4);
  cursor: grab;
  transition: transform 0.15s, background 0.15s;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: var(--primary-700);
}

.range-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-600);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(8, 57, 159, 0.4);
  cursor: grab;
}

/* --- Modals --- */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(7, 13, 21, 0.72);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.modal-dialog {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow-y: auto;
  transform: translateY(24px) scale(0.96);
  transition: transform var(--transition-normal);
  z-index: 2;
  display: flex;
  flex-direction: column;
}

.modal.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  background: linear-gradient(135deg, var(--bg-subtle), #ffffff);
  position: sticky;
  top: 0;
  z-index: 5;
  flex-shrink: 0;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1.4;
  flex: 1;
}

.modal-close {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  background: #ffffff;
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
}

.modal-close:hover {
  background-color: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-200);
}

.modal-body {
  padding: 1.75rem;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.modal-footer {
  padding: 1.25rem 1.75rem;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

@media (max-width: 576px) {
  .toast-container {
    bottom: 1rem !important;
    right: 1rem !important;
    left: 1rem !important;
    align-items: stretch !important;
  }
  .toast {
    max-width: 100% !important;
  }
}

.toast {
  pointer-events: auto;
  background-color: var(--navy-900);
  color: #ffffff;
  padding: 1rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.5;
  border-left: 4px solid var(--accent-500);
  animation: slideInRight 0.3s ease-out forwards;
  max-width: min(420px, 92vw);
}

.toast-success {
  border-left-color: var(--secondary-500, #01a755);
}

.toast-error {
  border-left-color: var(--brand-red, #dc2626);
}

.toast-info {
  border-left-color: var(--brand-cyan, #00acf1);
}

.ui-icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.ui-icon {
  width: 1.5rem;
  height: 1.5rem;
  display: inline-block;
  flex: 0 0 auto;
  vertical-align: middle;
  color: var(--brand-blue, #08399f);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ui-icon-inline {
  width: 1.05rem;
  height: 1.05rem;
  margin-inline-end: 0.3rem;
}

.ui-icon-small {
  width: 0.95rem;
  height: 0.95rem;
}

.ui-icon-stat {
  width: 2rem;
  height: 2rem;
  color: var(--brand-green, #08783e);
}

.ui-icon-document {
  width: 1.8rem;
  height: 1.8rem;
}

.gateway-icon .ui-icon,
.home-notice-icon-circle .ui-icon,
.contact-icon-wrapper .ui-icon,
.affiliation-icon {
  width: 1.65rem;
  height: 1.65rem;
  color: currentColor;
}

.home-notice-item-time,
.marquee-link,
.marquee-sep,
.product-tab-btn,
.calc-tab-btn,
.btn-calc-jump,
.btn-download-doc {
  display: inline-flex;
  align-items: center;
}

.notice-meta-divider {
  width: 1px;
  height: 0.9rem;
  margin-inline: 0.65rem;
  background: var(--border-light, #dbe3ee);
}

.photo-credits {
  margin: 1rem auto 1.25rem;
  max-width: 62rem;
  color: var(--text-muted, #64748b);
  font-size: 0.72rem;
  line-height: 1.6;
  text-align: center;
}

.photo-credits a {
  color: var(--brand-blue, #08399f);
  text-decoration: underline;
  text-underline-offset: 0.16rem;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Rate table cell colors (work with i18n-driven content) */
.scheme-table tbody td:nth-child(3) { color: var(--brand-green); font-weight: 700; }
.scheme-table tbody tr:nth-child(4) td:nth-child(3) { color: #1d4ed8; }
.scheme-table tbody tr:nth-child(5) td:nth-child(3),
.scheme-table tbody tr:nth-child(6) td:nth-child(3),
.scheme-table tbody tr:nth-child(7) td:nth-child(3) { color: #b45309; }