:root {
  --bg: #f5f2ea;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --text: #141826;
  --muted: #5f687e;
  --line: rgba(20, 24, 38, 0.12);
  --primary: #2862ff;
  --primary-2: #7d3cff;
  --accent: #ff5f7b;
  --shadow: 0 28px 80px rgba(15, 19, 36, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(40, 98, 255, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(125, 60, 255, 0.14), transparent 24%),
    linear-gradient(180deg, #fefcf7 0%, #f4f0e6 100%);
}

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

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 18px auto 30px;
}

.topbar,
.hero-card,
.info-card,
.plan-card,
.notice-card,
.cta-card,
.footer {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 14px 40px rgba(18, 23, 38, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  color: #2551ef;
  letter-spacing: 0.02em;
  font-size: 1.06rem;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  border: 2px solid currentColor;
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 6px 18px rgba(18, 23, 38, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: #344052;
  font-weight: 600;
  font-size: 0.97rem;
}

.nav-support {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  cursor: pointer;
}

.menu-button span {
  width: 18px;
  height: 2px;
  background: #1c2537;
  border-radius: 2px;
}

.section {
  margin-top: 22px;
}

.hero {
  position: relative;
  min-height: 540px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 34px;
}

.hero-background {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 11, 28, 0.38), rgba(8, 12, 28, 0.74)),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.12), transparent 34%),
    linear-gradient(120deg, #111826, #242a46 46%, #0f1220);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(16px);
  opacity: 0.75;
}

.hero::before {
  width: 380px;
  height: 380px;
  background: rgba(125, 60, 255, 0.24);
  top: -120px;
  right: -70px;
}

.hero::after {
  width: 320px;
  height: 320px;
  background: rgba(40, 98, 255, 0.2);
  left: -80px;
  bottom: -110px;
}

.hero-card {
  position: relative;
  z-index: 1;
  width: min(860px, calc(100% - 44px));
  text-align: center;
  color: #fff;
  padding: 56px 34px 50px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  background: rgba(10, 15, 28, 0.26);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-block;
  padding: 8px 14px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #cdd8ff;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  line-height: 0.95;
  font-weight: 900;
  text-wrap: balance;
}

.hero p {
  margin: 18px auto 0;
  max-width: 680px;
  font-size: clamp(1.06rem, 2vw, 1.3rem);
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.84);
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--primary), #1d4ee8 45%, var(--primary-2));
  color: #fff;
  box-shadow: 0 18px 40px rgba(40, 98, 255, 0.3);
}

.button-secondary,
.button-outline {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.button-outline {
  color: var(--text);
  border-color: rgba(40, 98, 255, 0.18);
  background: rgba(40, 98, 255, 0.05);
}

.section-heading {
  text-align: center;
  margin: 28px auto 28px;
  max-width: 760px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.05;
  font-weight: 900;
}

.section-heading p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.features-grid,
.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.features-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.plan-card,
.notice-card,
.cta-card,
.footer {
  border: 1px solid rgba(20, 24, 38, 0.08);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.info-card {
  padding: 22px;
  border-radius: var(--radius-md);
}

.info-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(40, 98, 255, 0.12), rgba(125, 60, 255, 0.12));
  color: #2551ef;
  font-size: 1.2rem;
}

.info-card h3 {
  margin: 16px 0 10px;
  font-size: 1.18rem;
}

.info-card p,
.plan-card li,
.notice-card p,
.cta-card p,
.footer p {
  color: var(--muted);
  line-height: 1.6;
}

.plans-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  border-radius: 26px;
  min-height: 100%;
}

.featured {
  border-color: rgba(125, 60, 255, 0.22);
  box-shadow: 0 24px 60px rgba(92, 69, 207, 0.14);
}

.badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.plan-top {
  text-align: center;
}

.plan-top h3 {
  margin: 18px 0 12px;
  font-size: 1.6rem;
}

.plan-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.plan-meta span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(40, 98, 255, 0.08);
  color: #39445b;
  font-size: 0.88rem;
  font-weight: 600;
}

.plan-price {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.plan-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.plan-card li {
  position: relative;
  padding-left: 26px;
}

.plan-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 900;
}

.plan-card .button {
  width: 100%;
  margin-top: auto;
}

.notice-card,
.cta-card {
  border-radius: 28px;
}

.notice {
  padding-top: 10px;
}

.notice-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 26px;
}

.notice-card p {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.testimonials {
  padding-top: 6px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px;
  border: 1px solid rgba(20, 24, 38, 0.08);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(40, 98, 255, 0.08), transparent 32%),
    rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.testimonial-avatar {
  width: 84px;
  height: 84px;
  padding: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(40, 98, 255, 0.18), rgba(125, 60, 255, 0.18));
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.testimonial-header h3 {
  margin: 0;
  font-size: 1.08rem;
}

.testimonial-header p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.testimonial-stars {
  color: #f5b301;
  letter-spacing: 0.08em;
  font-size: 0.92rem;
  font-weight: 900;
  white-space: nowrap;
}

.testimonial-card > p {
  margin: 0;
  color: var(--text);
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid rgba(20, 24, 38, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
}

.faq-icon {
  font-size: 1.4rem;
  color: var(--primary);
}

.faq-panel {
  display: none;
  padding: 0 20px 18px;
  color: var(--muted);
  margin-top: -4px;
  line-height: 1.65;
}

.faq-item[aria-expanded="true"] + .faq-panel {
  display: block;
}

.cta {
  padding-bottom: 6px;
}

.cta-card {
  text-align: center;
  padding: 42px 24px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.22), transparent 28%),
    linear-gradient(135deg, #3f5cff, #6b38ff 55%, #9a3cff);
  color: #fff;
}

.cta-card h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
}

.cta-card p {
  max-width: 760px;
  margin: 14px auto 24px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
}

.footer {
  margin-top: 22px;
  padding: 28px;
  border-radius: 28px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 24px;
}

.footer h3 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.footer a {
  display: block;
  color: var(--muted);
  padding: 6px 0;
}

.brand-footer {
  margin-bottom: 14px;
}

.footer p {
  margin: 0;
  max-width: 360px;
}

@media (max-width: 1080px) {
  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .plans-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 18px, 1200px);
    margin-top: 10px;
  }

  .topbar {
    border-radius: 24px;
    padding: 14px 16px;
  }

  .menu-button {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 40px rgba(18, 23, 38, 0.12);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 12px 10px;
    border-radius: 14px;
  }

  .nav-support {
    border-left: 0;
    padding-left: 10px;
  }

  .hero {
    min-height: 510px;
  }

  .hero-card {
    width: calc(100% - 24px);
    padding: 34px 18px 30px;
  }

  .hero h1 {
    font-size: clamp(2rem, 9vw, 3.1rem);
  }

  .features-grid,
  .plans-grid,
  .testimonials-grid,
  .footer {
    grid-template-columns: 1fr;
  }

  .notice-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .cta-card {
    padding: 34px 18px;
  }
}