:root {
  --bg: #f6f9ff;
  --paper: rgba(255, 255, 255, 0.9);
  --card: #ffffff;
  --card-strong: #eef5ff;
  --text: #0f172a;
  --muted: #5b6679;
  --line: rgba(37, 99, 235, 0.12);
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --green: #0f766e;
  --shadow: 0 24px 70px rgba(37, 99, 235, 0.14);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(147, 197, 253, 0.4), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(191, 219, 254, 0.34), transparent 22%),
    linear-gradient(180deg, #fbfdff 0%, #edf4ff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 56px;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 248, 238, 0.76);
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 36px rgba(86, 61, 33, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.26);
}

.brand-mark svg {
  width: 20px;
  height: 20px;
}

.brand-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text {
  font-size: 1.15rem;
}

.brand-subtext {
  color: var(--muted);
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: none;
}

.site-nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff8ef;
  box-shadow: 0 14px 28px rgba(201, 111, 45, 0.24);
}

.button-secondary {
  background: var(--green);
  color: #f8f4ec;
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 26px;
  padding: 54px 0 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.cta-copy h2 {
  margin: 0;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero-text,
.section-heading p,
.cta-copy p,
.panel-copy p,
.audience-card p,
.price-card p,
.hero-points,
.feature-list {
  color: var(--muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 20px;
}

.hero-points {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-points li::before,
.feature-list li::before {
  content: "•";
  margin-right: 10px;
  color: var(--accent);
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.hero-card,
.mode-panel,
.audience-card,
.price-card,
.cta-card,
.dialog-body {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 26px;
}

.hero-card-primary {
  background:
    linear-gradient(180deg, rgba(239, 246, 255, 0.98), rgba(255, 255, 255, 0.94)),
    var(--paper);
}

.hero-card-secondary {
  background:
    linear-gradient(180deg, rgba(240, 249, 255, 0.98), rgba(255, 255, 255, 0.94)),
    var(--paper);
}

.card-tag,
.audience-type,
.plan-name {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-card h2,
.panel-copy h3,
.audience-card h3,
.cta-card h3,
.dialog-body h3 {
  margin: 0 0 12px;
  font-size: 1.45rem;
  line-height: 1.28;
}

.signal-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 8px 0 22px;
}

.signal-bar div {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
}

.signal-bar strong,
.signal-bar span {
  display: block;
}

.signal-bar strong {
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.signal-bar span {
  color: var(--muted);
}

.section {
  padding: 56px 0 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-heading h2,
.cta-copy h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.mode-switch {
  display: inline-flex;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.72);
}

.mode-tab {
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.mode-tab.is-active {
  background: var(--text);
  color: #fff9f0;
}

.mode-panels {
  margin-top: 20px;
}

.mode-panel {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
  padding: 26px;
}

.feature-list {
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.panel-steps {
  display: grid;
  gap: 12px;
  align-content: start;
}

.panel-steps span {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.64);
  font-family: "Manrope", sans-serif;
  font-weight: 700;
}

.audience-grid,
.pricing-grid,
.cta-section {
  display: grid;
  gap: 18px;
}

.audience-grid {
  grid-template-columns: repeat(3, 1fr);
}

.audience-grid-two {
  grid-template-columns: repeat(2, 1fr);
}

.audience-card,
.price-card {
  padding: 22px;
}

.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
}

.price-card.featured {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.09), rgba(255, 255, 255, 0.96)),
    var(--paper);
}

.plan-price {
  display: block;
  margin-bottom: 12px;
  font-family: "Manrope", sans-serif;
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.cta-section {
  grid-template-columns: 1fr 0.95fr;
  align-items: start;
}

.cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.cta-card {
  display: grid;
  gap: 14px;
  padding: 26px;
}

.cta-card-button {
  width: 100%;
}

[hidden] {
  display: none !important;
}

@media (max-width: 980px) {
  .site-header,
  .hero,
  .mode-panel,
  .audience-grid,
  .pricing-grid,
  .cta-section,
  .signal-bar {
    grid-template-columns: 1fr;
  }

  .site-header {
    border-radius: 30px;
  }

  .site-nav {
    display: none;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
    padding-top: 12px;
  }

  .site-header {
    flex-wrap: wrap;
    justify-content: center;
    padding: 14px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero h1,
  .section-heading h2,
  .cta-copy h2 {
    line-height: 1.03;
  }

  .hero-card,
  .mode-panel,
  .audience-card,
  .price-card,
  .cta-card {
    border-radius: 22px;
  }

  .hero-actions,
  .cta-links {
    flex-direction: column;
  }
}