/* ==========================================================================
   XESTUS BIZCRAFT - UI COMPONENTS & ATOMS
   Ultra-premium glassmorphism, responsive navigation, buttons, forms, toasts.
   Lighthouse 100% Accessibility & Google AdSense Compliance.
   ========================================================================== */

/* --------------------------------------------------------------------------
   SKIP TO CONTENT (Accessibility)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-500);
  color: #ffffff;
  padding: 8px 16px;
  z-index: 10000;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 700;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* --------------------------------------------------------------------------
   TOP NAVIGATION & HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-sm) var(--space-lg);
  margin-bottom: var(--space-lg);
  transition: all var(--transition-normal);
}

.header-inner {
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
  color: #ffffff;
  flex-shrink: 0;
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.brand-text span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Privacy Indicator Badge */
.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #10b981;
  letter-spacing: 0.02em;
}

@media (max-width: 680px) {
  .privacy-badge {
    display: none;
  }
}

.privacy-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* --------------------------------------------------------------------------
   MODULE TAB NAVIGATION
   -------------------------------------------------------------------------- */
.nav-tabs-wrapper {
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 4px;
  margin-bottom: var(--space-xl);
  display: flex;
  justify-content: center;
  -webkit-overflow-scrolling: touch;
}
.nav-tabs-wrapper::-webkit-scrollbar {
  display: none;
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  padding: 6px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-normal);
  position: relative;
  min-height: 44px;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.tab-btn.active {
  color: #ffffff;
  background: var(--grad-primary);
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.4);
}

.tab-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.2;
}

/* --------------------------------------------------------------------------
   GLASS CARDS & CONTAINERS
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  pointer-events: none;
}

.card-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  background: rgba(255, 255, 255, 0.015);
  flex-wrap: wrap;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.card-body {
  padding: var(--space-lg);
}

/* --------------------------------------------------------------------------
   BUTTONS (Touch friendly 44px minimum)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.2;
  min-height: 40px;
}

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

.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover {
  background: var(--grad-primary-hover);
  box-shadow: 0 6px 22px rgba(99, 102, 241, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface-2);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}
.btn-secondary:hover {
  background: var(--bg-surface-3);
  border-color: var(--border-medium);
}

.btn-emerald {
  background: var(--grad-emerald);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}
.btn-emerald:hover {
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.5);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}
.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: var(--primary-400);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.12);
  color: var(--rose-500);
  border: 1px solid rgba(244, 63, 94, 0.3);
}
.btn-danger:hover {
  background: var(--rose-500);
  color: #ffffff;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-icon:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  min-height: 34px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
  min-height: 48px;
}

/* --------------------------------------------------------------------------
   FORM CONTROLS & INPUTS
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label span.req {
  color: var(--rose-500);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  transition: all var(--transition-fast);
  outline: none;
  min-height: 42px;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: var(--bg-surface-1);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input.font-mono {
  font-family: var(--font-mono);
}

.input-addon-group {
  display: flex;
  align-items: center;
}

.input-addon-prefix {
  padding: 10px 14px;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 42px;
  display: flex;
  align-items: center;
}

.input-addon-group .form-input {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  min-height: 32px;
}
.form-checkbox-label input[type="checkbox"] {
  accent-color: var(--primary-500);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   EDITORIAL GUIDE & FAQ ACCORDION SECTION (AdSense & SEO Rank)
   -------------------------------------------------------------------------- */
.editorial-guide-section {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
}

.editorial-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-2xl);
}

.editorial-header h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.editorial-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.editorial-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}
.editorial-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
}

.editorial-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary-400);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.editorial-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.editorial-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* FAQ Accordion */
.faq-section {
  max-width: 900px;
  margin: 0 auto var(--space-3xl);
}

.faq-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  font-size: 1.8rem;
}

.faq-item {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-question {
  width: 100%;
  padding: 16px 20px;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.faq-icon {
  transition: transform var(--transition-fast);
  color: var(--primary-400);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 20px 20px;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
  border-top: 1px solid transparent;
}

.faq-item.open .faq-answer {
  display: block;
}

/* --------------------------------------------------------------------------
   COMPREHENSIVE SITE FOOTER (AdSense Trust & Compliance)
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-surface-1);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) var(--space-lg) var(--space-xl);
  margin-top: auto;
}

.footer-inner {
  max-width: 1540px;
  margin: 0 auto;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 992px) {
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}
@media (max-width: 600px) {
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand p {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 360px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a, .footer-links button {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  text-align: left;
  transition: color var(--transition-fast);
}
.footer-links a:hover, .footer-links button:hover {
  color: var(--primary-400);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-trust-badges {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.trust-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   MODAL WINDOW & TOASTS
   -------------------------------------------------------------------------- */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 300px;
  max-width: 440px;
  padding: 12px 18px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: 0.9rem;
  animation: toastSlideIn 250ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  backdrop-filter: blur(12px);
}

.toast.toast-success { border-left: 4px solid var(--emerald-500); }
.toast.toast-error { border-left: 4px solid var(--rose-500); }
.toast.toast-info { border-left: 4px solid var(--primary-500); }

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.toast.hide { animation: toastSlideOut 200ms ease forwards; }
@keyframes toastSlideOut { to { opacity: 0; transform: translateY(12px) scale(0.95); } }

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-container {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  max-width: 840px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-normal);
}

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