/* ==========================================================================
   COMPONENTS - AUREA DENTAL STUDIO (Production Polish & Precision Alignment)
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: height var(--transition-smooth), background-color var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.site-header.is-scrolled {
  height: var(--header-height-scrolled);
  background-color: rgba(250, 248, 245, 0.98);
  box-shadow: 0 4px 24px rgba(22, 22, 20, 0.04);
}

.header-container {
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Brand Logo */
.brand-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text-main);
  transition: opacity var(--transition-fast);
}

.brand-logo:hover {
  opacity: 0.85;
}

.logo-main {
  font-family: var(--font-serif);
  font-size: 1.625rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--text-main);
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-olive);
  margin-top: 0.25rem;
}

/* Discreet Portfolio Tag */
.portfolio-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-family: var(--font-sans);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
  padding: 0 0 0.65rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--border-medium);
}

/* Nav Menu */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.2vw, 2.5rem);
}

.nav-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--accent-olive);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.nav-link.is-active {
  color: var(--text-main);
  font-weight: 600;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-white);
  background-color: var(--text-main);
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--text-main);
  transition: background-color var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-header-cta:hover {
  background-color: var(--accent-olive);
  border-color: var(--accent-olive);
  transform: translateY(-1px);
}

/* Mobile Nav Toggle */
.btn-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 8px;
  z-index: 1100;
}

.toggle-line {
  display: block;
  height: 1.5px;
  background-color: var(--text-main);
  transition: transform var(--transition-fast), width var(--transition-fast), opacity var(--transition-fast);
}

.toggle-line:nth-child(1) { width: 24px; }
.toggle-line:nth-child(2) { width: 18px; }
.toggle-line:nth-child(3) { width: 22px; }

.btn-nav-toggle.is-open .toggle-line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
  width: 24px;
}
.btn-nav-toggle.is-open .toggle-line:nth-child(2) {
  opacity: 0;
  width: 0;
}
.btn-nav-toggle.is-open .toggle-line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
  width: 24px;
}

/* --------------------------------------------------------------------------
   02. BUTTONS & EDITORIAL LINKS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1rem 1.85rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  position: relative;
}

.btn-primary {
  background-color: var(--text-main);
  color: var(--text-white);
  border: 1px solid var(--text-main);
}

.btn-primary:hover {
  background-color: var(--accent-olive);
  border-color: var(--accent-olive);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(22, 22, 20, 0.15);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-medium);
}

.btn-outline:hover {
  background-color: var(--text-main);
  color: var(--text-white);
  border-color: var(--text-main);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--text-white);
  border: 1px solid var(--border-dark);
}

.btn-outline-white:hover {
  background-color: var(--text-white);
  color: var(--text-main);
  border-color: var(--text-white);
}

.btn.is-loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn.is-loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #FFFFFF;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
  margin-left: 0.5rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Editorial Text Link with arrow */
.link-editorial {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 0.5rem 0;
  transition: color var(--transition-fast), gap var(--transition-fast);
  cursor: pointer;
}

.link-editorial svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.link-editorial:hover {
  color: var(--accent-olive);
  gap: 0.9rem;
}

.link-editorial:hover svg {
  transform: translateX(4px);
}

.link-editorial-light {
  color: var(--text-white);
}

.link-editorial-light:hover {
  color: var(--accent-gold);
}

/* --------------------------------------------------------------------------
   03. EDITORIAL SERVICE INDEX (Clean Vertical List)
   -------------------------------------------------------------------------- */
.service-index {
  position: relative;
  width: 100%;
  border-top: 1px solid var(--border-subtle);
}

.service-row {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1.4fr) minmax(0, 1.6fr) 48px;
  align-items: center;
  padding: clamp(1.75rem, 3vw, 2.75rem) 0;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background-color var(--transition-fast), padding-left var(--transition-fast);
}

.service-row::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0%;
  height: 1.5px;
  background-color: var(--text-main);
  transition: width var(--transition-smooth);
}

.service-row:hover,
.service-row:focus-visible {
  padding-left: 1rem;
}

.service-row:hover::before,
.service-row:focus-visible::before {
  width: 100%;
}

.service-row:focus-visible {
  outline: 2px solid var(--accent-olive);
  outline-offset: 4px;
}

.service-num {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.service-name {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.4vw, 2.3rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--text-main);
  transition: color var(--transition-fast);
}

.service-row:hover .service-name,
.service-row:focus-visible .service-name {
  color: var(--accent-olive);
}

.service-desc {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
  padding-right: 1.5rem;
}

.service-action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.service-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.service-row:hover .service-arrow,
.service-row:focus-visible .service-arrow {
  background-color: var(--text-main);
  border-color: var(--text-main);
  color: var(--text-white);
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   04. REFINED 3D PLANNING STUDIO BADGE (Non-SaaS)
   -------------------------------------------------------------------------- */
.feature-badge-studio {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  background-color: rgba(22, 22, 20, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-dark);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-gold);
  z-index: 5;
}

.feature-badge-studio::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent-gold);
}

/* --------------------------------------------------------------------------
   05. INTERACTIVE BEFORE / AFTER SLIDER (Single Source of Truth: --compare-position)
   -------------------------------------------------------------------------- */
.before-after-wrapper {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
}

.before-after-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  user-select: none;
  touch-action: pan-y;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-elevated);
  background-color: var(--bg-secondary);
  line-height: 0;
  font-size: 0;
  --compare-position: 50%;
  cursor: ew-resize;
}

.before-after-container:focus-visible {
  outline: 3px solid var(--accent-olive);
  outline-offset: 4px;
}

.ba-image-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  pointer-events: none;
}

.ba-image-layer picture,
.ba-image-layer img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
}

/* Base layer (Before) */
.ba-layer-before {
  z-index: 1;
}

/* Reveal layer (After) clipped via --compare-position with NO animation lag */
.ba-layer-after {
  z-index: 2;
  clip-path: polygon(var(--compare-position, 50%) 0%, 100% 0%, 100% 100%, var(--compare-position, 50%) 100%);
  -webkit-clip-path: polygon(var(--compare-position, 50%) 0%, 100% 0%, 100% 100%, var(--compare-position, 50%) 100%);
  will-change: clip-path;
}

/* Single vertical hairline divider line positioned at --compare-position */
.ba-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--compare-position, 50%);
  width: 2px;
  background-color: #FFFFFF;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  transform: translateX(-50%);
  z-index: 8;
  pointer-events: none;
  will-change: left;
}

/* Draggable Handle centered on --compare-position */
.ba-handle {
  position: absolute;
  top: 50%;
  left: var(--compare-position, 50%);
  width: 48px;
  height: 48px;
  transform: translate(-50%, -50%);
  z-index: 10;
  cursor: ew-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  user-select: none;
  will-change: left;
}

.ba-handle:focus-visible {
  outline: none;
}

.ba-handle:focus-visible .ba-handle-button {
  outline: 3px solid var(--accent-olive);
  outline-offset: 3px;
}

.ba-handle-button {
  position: relative;
  width: 44px;
  height: 44px;
  background-color: #FFFFFF;
  color: var(--text-main);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.ba-handle:hover .ba-handle-button {
  transform: scale(1.08);
  background-color: var(--bg-primary);
}

.ba-handle-button svg {
  width: 12px;
  height: 12px;
}

/* Labels on images */
.ba-tag {
  position: absolute;
  bottom: 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #FFFFFF;
  background-color: rgba(22, 22, 20, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  z-index: 5;
  pointer-events: none;
  line-height: 1.4;
}

.ba-tag-before { left: 1.25rem; }
.ba-tag-after { right: 1.25rem; }

/* Metadata below slider */
.ba-meta-footer {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0 0.5rem;
}

.ba-case-info {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
}

.ba-disclaimer {
  font-size: 0.78rem;
  color: var(--text-subtle);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   06. APPOINTMENT BOOKING FORM & INLINE VALIDATION
   -------------------------------------------------------------------------- */
.booking-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  padding: clamp(2rem, 4vw, 3.5rem);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-subtle);
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
}

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

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-main);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.95rem 1.15rem;
  border-radius: var(--radius-xs);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-olive);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(59, 70, 58, 0.12);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-error);
  background-color: var(--color-error-bg);
}

.form-input.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.15);
}

.form-error {
  display: none;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-error);
  margin-top: 0.2rem;
}

.form-group.has-error .form-error {
  display: block;
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23575550' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-muted);
  cursor: pointer;
}

.form-checkbox {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  margin-top: 2px;
  flex-shrink: 0;
  display: grid;
  place-content: center;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.form-checkbox.is-invalid {
  border-color: var(--color-error);
}

.form-checkbox::before {
  content: '';
  width: 10px;
  height: 10px;
  transform: scale(0);
  background-color: var(--accent-olive);
  border-radius: 1px;
  transition: transform var(--transition-fast);
}

.form-checkbox:checked {
  border-color: var(--accent-olive);
}

.form-checkbox:checked::before {
  transform: scale(1);
}

.form-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-actions .btn {
  width: 100%;
}

/* Fast Direct Actions: WhatsApp & Tel */
.direct-channels {
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.channel-link svg {
  width: 18px;
  height: 18px;
  color: var(--accent-olive);
}

.channel-link:hover {
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   07. MODAL DIALOGS (Demo Submission & Legal Demo)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(22, 22, 20, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-smooth), visibility 0s linear 0.45s;
}

.modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--transition-smooth), visibility 0s linear 0s;
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 560px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  padding: clamp(2rem, 5vw, 3.25rem);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-elevated);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-smooth);
  text-align: left;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-backdrop.is-active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

.modal-badge-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-olive);
  background-color: var(--accent-olive-light);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  margin-bottom: 1.25rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.modal-text {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

/* Demo Receipt Summary Box */
.demo-receipt-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

.demo-receipt-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.35rem;
}

.demo-receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  color: var(--text-muted);
}

.demo-receipt-row strong {
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   08. MOBILE STICKY BOTTOM BAR (Conversion driver)
   -------------------------------------------------------------------------- */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  padding: 0.85rem 1.25rem;
  z-index: 900;
  transform: translateY(100%);
  transition: transform var(--transition-smooth);
}

.mobile-bottom-bar.is-visible {
  transform: translateY(0);
}

.mobile-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto;
}

.mobile-bar-tel {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-medium);
  color: var(--text-main);
  flex-shrink: 0;
}

.mobile-bar-cta {
  flex-grow: 1;
  height: 48px;
  font-size: 0.8125rem;
  padding: 0 1rem;
}