:root {
  --spark-primary: #0b181b;
  --spark-bg: #f5f5fa;
  --spark-bg-secondary: #e9e9f3;
  --spark-border: rgb(217 216 227);
  --spark-border-secondary: rgb(193 192 204);
  --spark-text-primary: rgb(35 35 43);
  --spark-text-secondary: rgb(120 119 135);
  --spark-text-tertiary: rgb(193 192 204);
  --spark-accent-savings: rgb(11 181 57);
  --spark-accent-purple: rgb(88 35 243);
  --spark-white: #ffffff;
  --spark-radius-sm: 8px;
  --spark-radius-md: 12px;
  --spark-radius-lg: 16px;
  --spark-shadow-xs: 0px 1px 4px rgba(16, 16, 20, 0.05);
  --spark-shadow-sm: 0px 1px 10px rgba(16, 16, 20, 0.10), 0px 1px 2px rgba(16, 16, 20, 0.06);
  --spark-shadow-md: 0px 4px 14px -2px rgba(16, 16, 20, 0.10), 0px 2px 8px -2px rgba(16, 16, 20, 0.04);
  --spark-gradient-primary: linear-gradient(104.99deg, #ffc555 -21.89%, #fb4ab9 87.44%);
  --spark-gradient-savings: radial-gradient(155.75% 155.75% at 50% 155.75%, #ffef79 0%, #00c2a1 100%);
  --spark-font-sans: "Inter var", ui-sans-serif, system-ui, sans-serif;
  --spark-font-roobert: "Roobert", ui-sans-serif, system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.spark-page {
  min-height: 100vh;
  background-color: var(--spark-bg);
  font-family: var(--spark-font-sans);
  color: var(--spark-text-primary);
  overflow-x: hidden;
}

.spark-page-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--spark-border);
  box-shadow: var(--spark-shadow-xs);
}

.spark-page-header-inner {
  max-width: 1312px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.spark-page-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--spark-text-primary);
  font-family: var(--spark-font-roobert);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.25rem;
  letter-spacing: -0.005em;
}

.spark-page-logo img {
  height: 32px;
  width: auto;
  display: block;
}

.spark-page-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.spark-page-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--spark-radius-sm);
  font-family: var(--spark-font-roobert);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1rem;
  color: var(--spark-text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  background-color: var(--spark-white);
  box-shadow: var(--spark-shadow-xs);
}

.spark-page-nav-link:hover {
  color: var(--spark-text-primary);
  border-color: var(--spark-border);
  background-color: #f8f8fc;
}

.spark-page-nav-link.spark-active {
  color: var(--spark-text-primary);
  border-color: var(--spark-border-secondary);
  background-color: var(--spark-white);
  box-shadow: var(--spark-shadow-sm);
}

.spark-home-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--spark-radius-sm);
  font-family: var(--spark-font-roobert);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1rem;
  color: #ffffff;
  text-decoration: none;
  background-color: rgb(35 35 43);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--spark-shadow-xs);
  cursor: pointer;
}

.spark-home-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--spark-gradient-primary);
  z-index: -1;
  transition: opacity 0.15s ease;
}

.spark-home-btn:hover {
  background-color: rgb(26, 26, 32);
}

.spark-home-btn:hover::after {
  opacity: 0;
}

.spark-page-main {
  max-width: 1312px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.spark-page-hero {
  margin-bottom: 48px;
}

.spark-page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background-color: var(--spark-white);
  border: 1px solid var(--spark-border);
  box-shadow: var(--spark-shadow-xs);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--spark-font-roobert);
  color: var(--spark-text-secondary);
  margin-bottom: 16px;
  letter-spacing: 0;
  line-height: 1rem;
}

.spark-page-hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-image: var(--spark-gradient-savings);
  flex-shrink: 0;
}

.spark-page-h1 {
  font-family: var(--spark-font-roobert);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 2.625rem;
  letter-spacing: -0.01em;
  color: var(--spark-text-primary);
  margin: 0 0 12px;
}

@media (min-width: 640px) {
  .spark-page-h1 {
    font-size: 3rem;
    line-height: 3.75rem;
  }
}

.spark-page-subtitle {
  font-family: var(--spark-font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5rem;
  color: var(--spark-text-secondary);
  max-width: 64ch;
  margin: 0;
}

@media (min-width: 640px) {
  .spark-page-subtitle {
    font-size: 1.125rem;
    line-height: 1.75rem;
  }
}

.spark-divider {
  height: 1px;
  background-color: var(--spark-border);
  border: none;
  margin: 0;
}

.spark-section {
  margin-bottom: 48px;
}

.spark-section-title {
  font-family: var(--spark-font-roobert);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--spark-text-primary);
  margin: 0 0 24px;
}

@media (min-width: 640px) {
  .spark-section-title {
    font-size: 1.5rem;
    line-height: 1.75rem;
  }
}

.spark-card {
  background-color: var(--spark-white);
  border: 1px solid var(--spark-border);
  border-radius: var(--spark-radius-sm);
  box-shadow: var(--spark-shadow-xs);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.spark-card:hover {
  box-shadow: var(--spark-shadow-sm);
  border-color: var(--spark-border-secondary);
}

.spark-card-question {
  font-family: var(--spark-font-roobert);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.125rem;
  letter-spacing: -0.005em;
  color: var(--spark-text-primary);
  margin: 0 0 12px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

@media (min-width: 640px) {
  .spark-card-question {
    font-size: 1.125rem;
    line-height: 1.375rem;
  }
}

.spark-card-question-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--spark-bg);
  border: 1px solid var(--spark-border);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--spark-font-roobert);
  color: var(--spark-text-secondary);
  flex-shrink: 0;
  margin-top: 1px;
  line-height: 1;
}

.spark-card-answer {
  font-family: var(--spark-font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.25rem;
  color: var(--spark-text-secondary);
  margin: 0;
  padding-left: 34px;
}

@media (min-width: 640px) {
  .spark-card-answer {
    font-size: 1rem;
    line-height: 1.5rem;
  }
}

.spark-card-answer a {
  color: rgb(106 77 255);
  text-decoration: none;
  background-image: var(--spark-gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: filter 0.15s ease;
}

.spark-card-answer a:hover {
  filter: brightness(0.85);
}

.spark-qa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .spark-qa-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .spark-qa-grid-lg {
    grid-template-columns: repeat(2, 1fr);
  }
}

.spark-inline-link {
  color: rgb(106 77 255);
  text-decoration: none;
  background-image: var(--spark-gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 500;
  transition: filter 0.15s ease;
}

.spark-inline-link:hover {
  filter: brightness(0.85);
}

.spark-team-sections {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .spark-team-sections {
    grid-template-columns: repeat(2, 1fr);
  }
}

.spark-section-card {
  background-color: var(--spark-white);
  border: 1px solid var(--spark-border);
  border-radius: var(--spark-radius-sm);
  box-shadow: var(--spark-shadow-xs);
  padding: 28px 28px 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.spark-section-card:hover {
  box-shadow: var(--spark-shadow-sm);
  border-color: var(--spark-border-secondary);
}

.spark-section-card-full {
  grid-column: 1 / -1;
}

.spark-section-card-h2 {
  font-family: var(--spark-font-roobert);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--spark-text-primary);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (min-width: 640px) {
  .spark-section-card-h2 {
    font-size: 1.25rem;
    line-height: 1.5rem;
  }
}

.spark-section-card-h2-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background-color: var(--spark-bg);
  border: 1px solid var(--spark-border);
  flex-shrink: 0;
}

.spark-section-card-h2-icon svg {
  width: 14px;
  height: 14px;
  color: var(--spark-text-secondary);
}

.spark-section-card-body {
  font-family: var(--spark-font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.25rem;
  color: var(--spark-text-secondary);
  margin: 0;
}

@media (min-width: 640px) {
  .spark-section-card-body {
    font-size: 1rem;
    line-height: 1.5rem;
  }
}

.spark-section-card-body + .spark-section-card-body {
  margin-top: 10px;
}

.spark-section-card-body a {
  color: rgb(106 77 255);
  text-decoration: none;
  background-image: var(--spark-gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 500;
  transition: filter 0.15s ease;
}

.spark-section-card-body a:hover {
  filter: brightness(0.85);
}

.spark-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spark-list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-family: var(--spark-font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.25rem;
  color: var(--spark-text-secondary);
}

@media (min-width: 640px) {
  .spark-list-item {
    font-size: 1rem;
    line-height: 1.5rem;
  }
}

.spark-list-item::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-image: var(--spark-gradient-savings);
  flex-shrink: 0;
  margin-top: 7px;
}

.spark-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 10px;
}

@media (min-width: 640px) {
  .spark-stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.spark-stat-item {
  background-color: var(--spark-bg);
  border: 1px solid var(--spark-border);
  border-radius: var(--spark-radius-sm);
  padding: 16px;
  text-align: center;
}

.spark-stat-value {
  font-family: var(--spark-font-roobert);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.75rem;
  letter-spacing: -0.01em;
  color: var(--spark-text-primary);
  margin: 0 0 4px;
  background-image: var(--spark-gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media (min-width: 640px) {
  .spark-stat-value {
    font-size: 2rem;
    line-height: 2.5rem;
  }
}

.spark-stat-label {
  font-family: var(--spark-font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1rem;
  color: var(--spark-text-secondary);
  margin: 0;
}

.spark-page-footer {
  border-top: 1px solid var(--spark-border);
  background-color: var(--spark-white);
  padding: 32px 20px;
  margin-top: 0;
}

.spark-page-footer-inner {
  max-width: 1312px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

@media (min-width: 640px) {
  .spark-page-footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.spark-page-footer-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

@media (min-width: 640px) {
  .spark-page-footer-nav {
    justify-content: flex-start;
  }
}

.spark-page-footer-link {
  font-family: var(--spark-font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.25rem;
  color: var(--spark-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.spark-page-footer-link:hover {
  color: var(--spark-text-primary);
}

.spark-page-footer-copy {
  font-family: var(--spark-font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1rem;
  color: var(--spark-text-tertiary);
  margin: 0;
}

.spark-return-btn-wrap {
  display: flex;
  justify-content: center;
  padding: 40px 0 0;
}

.spark-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 6px;
  background-color: var(--spark-bg);
  border: 1px solid var(--spark-border);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--spark-font-roobert);
  color: var(--spark-text-secondary);
  line-height: 1.25rem;
  white-space: nowrap;
}

.spark-tag-savings {
  background-color: rgb(219 251 227);
  border-color: rgb(11 181 57 / 0.3);
  color: rgb(6 162 63);
}

.spark-tag-purple {
  background-color: rgb(240 240 255);
  border-color: rgb(88 35 243 / 0.3);
  color: rgb(106 77 255);
}

.spark-notice {
  background-color: rgb(240 240 255);
  border: 1px solid rgb(170 168 255 / 0.5);
  border-radius: var(--spark-radius-sm);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}

.spark-notice-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: rgb(106 77 255);
  margin-top: 1px;
}

.spark-notice-text {
  font-family: var(--spark-font-sans);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--spark-text-primary);
  margin: 0;
}

.spark-notice-text a {
  color: rgb(106 77 255);
  font-weight: 500;
  text-decoration: none;
}

.spark-notice-text a:hover {
  text-decoration: underline;
}

.spark-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.spark-breadcrumb-item {
  font-family: var(--spark-font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1rem;
  color: var(--spark-text-tertiary);
}

.spark-breadcrumb-item a {
  color: var(--spark-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.spark-breadcrumb-item a:hover {
  color: var(--spark-text-primary);
}

.spark-breadcrumb-sep {
  color: var(--spark-text-tertiary);
  font-size: 0.75rem;
  user-select: none;
}

.spark-breadcrumb-current {
  color: var(--spark-text-primary);
  font-weight: 500;
  font-family: var(--spark-font-roobert);
  font-size: 0.75rem;
  line-height: 1rem;
}

@media (max-width: 639px) {
  .spark-page-main {
    padding: 28px 16px 60px;
  }

  .spark-card {
    padding: 16px;
  }

  .spark-section-card {
    padding: 20px 16px;
  }

  .spark-page-header-inner {
    padding: 0 16px;
  }

  .spark-page-footer {
    padding: 24px 16px;
  }
}

@media (min-width: 1024px) {
  .spark-page-main {
    padding: 56px 64px 96px;
  }

  .spark-page-header-inner {
    padding: 0 64px;
  }

  .spark-page-footer {
    padding: 32px 64px;
  }
}

@media (min-width: 1280px) {
  .spark-qa-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}