:root {
  --sp-radius-sm: 0.4rem;
  --sp-radius-md: 0.8rem;
  --sp-radius-lg: 1.4rem;
  --sp-card-radius: 20px;
  --sp-card-radius-lg: 24px;
  --sp-card-radius-sm: 14px;
  --sp-card-padding: 1rem;
  --sp-card-padding-lg: 1.25rem;
  --sp-gap-sm: 0.5rem;
  --sp-gap-md: 1rem;
  --sp-gap-lg: 1.5rem;
  --sp-card-border: 1px solid rgba(255, 255, 255, 0.08);
  --sp-card-border-strong: 1px solid rgba(255, 158, 103, 0.2);
  --sp-card-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  --sp-card-surface-elevated: radial-gradient(circle at top left, rgba(255, 123, 41, 0.12), rgba(255, 255, 255, 0.03) 45%, rgba(255, 255, 255, 0.02));
  --sp-card-surface-soft: rgba(255, 255, 255, 0.03);
  --sp-card-shadow: 0 16px 38px rgba(0, 0, 0, 0.22);
  --sp-card-shadow-hover: 0 22px 48px rgba(0, 0, 0, 0.28);
  --sp-card-hover-lift: translateY(-2px);
  --sp-section-gap: 1.5rem;
  --sp-section-gap-lg: 2rem;
  --sp-heading-page: 1.6rem;
  --sp-heading-section: 1.12rem;
  --sp-heading-card: 1rem;
  --sp-helper-size: 0.9rem;
  --sp-helper-color: rgba(255, 231, 214, 0.72);
  --sp-button-height: 42px;
  --sp-button-height-sm: 34px;
  --sp-button-radius: 12px;
  --sp-button-padding-inline: 1rem;
  --sp-button-gap: 0.45rem;
  --sp-button-shadow: 0 8px 22px rgba(255, 123, 41, 0.22);
  --sp-button-shadow-hover: 0 12px 28px rgba(255, 123, 41, 0.28);
  --sp-danger-shadow: 0 8px 22px rgba(220, 38, 38, 0.24);
  --sp-input-height: 42px;
  --sp-input-radius: 12px;
  --sp-input-padding-x: 0.9rem;
  --sp-input-bg: rgba(12, 6, 8, 0.72);
  --sp-input-border: rgba(255, 255, 255, 0.1);
  --sp-focus-ring: 0 0 0 3px rgba(255, 123, 41, 0.16);
  --sp-badge-height: 30px;
  --sp-badge-radius: 999px;
  --sp-badge-padding-x: 0.78rem;
  --sp-badge-font-size: 0.76rem;
  --sp-badge-font-weight: 700;
  --sp-badge-letter-spacing: 0.05em;
  --sp-table-row-height: 58px;
  --sp-table-cell-y: 0.85rem;
  --sp-table-cell-x: 1rem;
  --sp-table-header-bg: rgba(9, 5, 6, 0.96);
  --sp-table-row-bg: rgba(255, 255, 255, 0.018);
  --sp-table-row-alt-bg: rgba(255, 120, 0, 0.035);
  --sp-table-row-hover-bg: rgba(255, 123, 41, 0.075);
  --sp-empty-radius: 16px;
  --sp-empty-bg: rgba(255, 255, 255, 0.03);
  --sp-empty-border: 1px dashed rgba(255, 255, 255, 0.14);
  --sp-glow-soft: 0 0 0 1px rgba(255, 123, 41, 0.08), 0 16px 38px rgba(0, 0, 0, 0.22);
  --sp-success: #4ade80;
  --sp-warning: #facc15;
  --sp-danger: #ff4a5c;
  --sp-info: #3ea0ff;
  --sp-success-soft: rgba(74, 222, 128, 0.12);
  --sp-warning-soft: rgba(250, 204, 21, 0.12);
  --sp-danger-soft: rgba(255, 74, 92, 0.12);
  --sp-info-soft: rgba(62, 160, 255, 0.12);
  --sp-shadow: var(--sp-card-shadow);
  --sp-quick-transition: 180ms ease;
  --sp-standard-transition: 220ms ease;
  --sp-transition: var(--sp-standard-transition);
  --sp-text-secondary: var(--sp-text-muted);
}

.sp-section {
  padding: 5rem 0;
}

.sp-section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.sp-section-header h2 {
  font-size: 2rem;
}

.sp-section-header p {
  font-size: 0.96rem;
  color: var(--sp-text-muted);
}

.sp-panel-header {
  display: grid;
  gap: 0.35rem;
  margin-bottom: var(--sp-section-gap);
  max-width: 72ch;
}

.sp-panel-header h2,
.sp-panel-header h3 {
  margin: 0;
  font-size: var(--sp-heading-page);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.sp-panel-header p,
.sp-card-subtitle,
.sp-card-note {
  margin: 0;
  font-size: var(--sp-helper-size);
  line-height: 1.6;
  color: var(--sp-helper-color);
}

.sp-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--sp-card-radius);
  border: var(--sp-card-border);
  background: var(--sp-card-surface);
  box-shadow: var(--sp-card-shadow);
  transition: transform var(--sp-quick-transition), border-color var(--sp-quick-transition), box-shadow var(--sp-standard-transition);
}

.sp-card:hover {
  transform: var(--sp-card-hover-lift);
  border-color: rgba(255, 158, 103, 0.18);
  box-shadow: var(--sp-card-shadow-hover);
}

.sp-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: var(--sp-card-padding-lg) var(--sp-card-padding-lg) 0;
}

.sp-card-header h3,
.sp-card-header h4 {
  margin: 0;
  font-size: var(--sp-heading-section);
  line-height: 1.2;
}

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

.sp-card > .sp-card-body:first-child {
  padding-top: var(--sp-card-padding-lg);
}

.sp-card-header + .sp-card-body {
  padding-top: 1rem;
}

:where(
  .sp-template-library-highlight,
  .sp-template-library-section,
  .sp-template-editor-meta,
  .sp-import-step,
  .sp-import-hero-card,
  .sp-import-section-card,
  .sp-import-results-card,
  .sp-contact-tag-toolbar,
  .sp-contacts-table-toolbar,
  .sp-contact-actions-toolbar,
  .sp-appearance-mode-card,
  .sp-branding-logo-preview-card,
  .sp-sequence-audience-builder,
  .sp-sequence-audience-card,
  .sp-system-health-overall-card,
  .sp-system-health-score-card,
  .sp-system-health-issues-card,
  .sp-system-health-card
) {
  border-radius: var(--sp-card-radius);
  box-shadow: var(--sp-card-shadow);
  transition: transform var(--sp-quick-transition), border-color var(--sp-quick-transition), box-shadow var(--sp-standard-transition);
}

:where(
  .sp-import-step:hover,
  .sp-template-card:hover,
  .sp-appearance-mode-card:hover,
  .sp-system-health-card:hover,
  .sp-contact-row:hover td,
  .sp-card:hover
) {
  box-shadow: var(--sp-card-shadow-hover);
}

.sp-btn {
  min-height: var(--sp-button-height);
  padding: 0.7rem var(--sp-button-padding-inline);
  gap: var(--sp-button-gap);
  border-radius: var(--sp-button-radius);
  border: 1px solid transparent;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1;
  transition: transform var(--sp-quick-transition), border-color var(--sp-quick-transition), background var(--sp-quick-transition), color var(--sp-quick-transition), box-shadow var(--sp-standard-transition);
}

.sp-btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.sp-btn-primary,
.sp-btn--secondary {
  background: linear-gradient(135deg, #ff7b29 0%, #ff5722 100%);
  color: #ffffff;
  box-shadow: var(--sp-button-shadow);
}

.sp-btn-primary:hover:not(:disabled),
.sp-btn--secondary:hover:not(:disabled) {
  box-shadow: var(--sp-button-shadow-hover);
}

.sp-btn-secondary,
.sp-btn-outline,
.sp-btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--sp-text);
}

.sp-btn-secondary:hover:not(:disabled),
.sp-btn-outline:hover:not(:disabled),
.sp-btn-ghost:hover:not(:disabled) {
  border-color: rgba(255, 158, 103, 0.3);
  background: rgba(255, 123, 41, 0.1);
}

.sp-btn-danger,
.sp-btn--danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: #ffffff;
  box-shadow: var(--sp-danger-shadow);
}

.sp-btn-danger:hover:not(:disabled),
.sp-btn--danger:hover:not(:disabled) {
  box-shadow: 0 12px 28px rgba(220, 38, 38, 0.32);
}

.sp-btn--small,
.sp-btn-xs {
  min-height: var(--sp-button-height-sm);
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
}

:where(
  .sp-form-field input,
  .sp-form-field select,
  .sp-form-field textarea,
  .sp-filter-input,
  .sp-filter-select,
  .sp-contact-inline-input,
  .edit-name,
  .edit-email,
  .edit-company,
  .edit-tag,
  .sp-datetime-input,
  #placeholder-select,
  .sp-sequence-audience-builder select,
  .sp-template-library-toolbar-field input,
  .sp-template-library-toolbar-field select
) {
  min-height: var(--sp-input-height);
  padding: 0.7rem var(--sp-input-padding-x);
  border-radius: var(--sp-input-radius);
  border: 1px solid var(--sp-input-border);
  background: var(--sp-input-bg);
  color: var(--sp-text);
  transition: border-color var(--sp-quick-transition), box-shadow var(--sp-quick-transition), background var(--sp-quick-transition);
}

:where(
  .sp-form-field input,
  .sp-form-field select,
  .sp-form-field textarea,
  .sp-filter-input,
  .sp-filter-select,
  .sp-contact-inline-input,
  .edit-name,
  .edit-email,
  .edit-company,
  .edit-tag,
  .sp-datetime-input,
  #placeholder-select,
  .sp-sequence-audience-builder select,
  .sp-template-library-toolbar-field input,
  .sp-template-library-toolbar-field select
):focus {
  outline: none;
  border-color: rgba(255, 143, 77, 0.58);
  box-shadow: var(--sp-focus-ring);
}

.sp-badge,
:where(
  .sp-status-badge,
  .sp-verification-status,
  .sp-system-health-pill,
  .sp-system-health-badge,
  .sp-import-badge,
  .sp-appearance-inline-badge,
  .sp-appearance-mode-badge,
  .sp-contact-date-pill,
  .sp-template-type-badge,
  .sp-template-category,
  .sp-template-folder,
  .sp-template-meta-chip,
  .sp-template-stat-chip,
  .status,
  .sp-sequence-audience-count-badge
) {
  min-height: var(--sp-badge-height);
  padding: 0.32rem var(--sp-badge-padding-x);
  border-radius: var(--sp-badge-radius);
  font-size: var(--sp-badge-font-size);
  font-weight: var(--sp-badge-font-weight);
  letter-spacing: var(--sp-badge-letter-spacing);
  text-transform: uppercase;
}

.sp-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  color: var(--sp-text);
}

.sp-badge-success {
  background: var(--sp-success-soft);
  border-color: rgba(74, 222, 128, 0.3);
  color: var(--sp-success);
}

.sp-badge-warning {
  background: var(--sp-warning-soft);
  border-color: rgba(250, 204, 21, 0.3);
  color: var(--sp-warning);
}

.sp-badge-danger {
  background: var(--sp-danger-soft);
  border-color: rgba(255, 74, 92, 0.3);
  color: var(--sp-danger);
}

.sp-badge-info {
  background: var(--sp-info-soft);
  border-color: rgba(62, 160, 255, 0.3);
  color: var(--sp-info);
}

:where(.sp-table, .sp-dns-records-table, .sp-contacts-table, .sp-sequence-steps-table) {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

:where(.sp-table thead, .sp-dns-records-table thead, .sp-contacts-table thead) {
  background: var(--sp-table-header-bg);
}

:where(.sp-table th, .sp-table td, .sp-dns-records-table th, .sp-dns-records-table td, .sp-contacts-table th, .sp-contacts-table td, .sp-sequence-steps-table th, .sp-sequence-steps-table td) {
  min-height: var(--sp-table-row-height);
  padding: var(--sp-table-cell-y) var(--sp-table-cell-x);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  vertical-align: middle;
}

.sp-table-wrapper--scrollable {
  border-radius: var(--sp-card-radius);
  border: var(--sp-card-border);
  background: rgba(8, 4, 5, 0.8);
}

.sp-table-empty td,
.sp-empty-state,
.sp-template-empty,
.sp-domain-history-empty,
.sp-analytics-empty-card,
.sp-billing-empty {
  border-radius: var(--sp-empty-radius);
  border: var(--sp-empty-border);
  background: var(--sp-empty-bg);
}

.sp-empty-state {
  padding: var(--sp-card-padding);
  text-align: center;
  color: var(--sp-text-muted);
}

.sp-empty-state strong {
  display: block;
  color: var(--sp-text);
}

.sp-empty-state p {
  margin: 0.35rem 0 0;
  color: var(--sp-text-muted);
}

@media (max-width: 900px) {
  .sp-panel-header h2,
  .sp-panel-header h3 {
    font-size: 1.38rem;
  }
}

@media (max-width: 640px) {
  .sp-card-header,
  .sp-card-body {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .sp-btn {
    width: 100%;
  }
}