:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fb;
  --color-text: #14151a;
  --color-text-muted: #5b5f6d;
  --color-border: #e6e8ee;
  --color-primary: #4f46e5;
  --color-primary-dark: #4338ca;
  --color-primary-light: #eef0fe;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(20, 21, 26, 0.06);
  --container: 1160px;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

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

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-bg-alt);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  gap: 24px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-primary);
}

.nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  display: block;
}

/* Hero */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #fff 100%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero__content h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.hero__note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero__image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Logos */
.logos {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.logos__title {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.logos__row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  color: var(--color-text-muted);
  font-weight: 700;
  opacity: 0.6;
}

/* Section heading */
.section-heading {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.section-heading h2,
.about__content h2,
.cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-heading p {
  color: var(--color-text-muted);
}

/* Features */
.features {
  padding: 96px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: 12px;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* About */
.about {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about__image-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about__content p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-weight: 500;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  font-weight: 800;
}

/* Stats */
.stats {
  padding: 64px 0;
  background: var(--color-primary);
  color: #fff;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
  gap: 24px;
}

.stat__number {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: 0.9rem;
  opacity: 0.85;
}

/* Testimonials */
.testimonials {
  padding: 96px 0;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}

.testimonial-card p {
  margin-bottom: 20px;
  font-size: 1rem;
}

.testimonial-card footer strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-card footer span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Pricing */
.pricing {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.price-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
}

.price-card--highlight {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
  transform: scale(1.03);
}

.price-card__tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
}

.price-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.price-card__price {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.price-card__price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.price-card ul {
  margin-bottom: 28px;
  text-align: left;
}

.price-card li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.price-card .btn {
  width: 100%;
}

/* FAQ */
.faq {
  padding: 96px 0;
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 18px 22px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--color-text-muted);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* CTA */
.cta {
  padding: 96px 0;
  background: var(--color-primary);
  color: #fff;
  text-align: center;
}

.cta h2 {
  color: #fff;
}

.cta p {
  opacity: 0.9;
  margin-bottom: 32px;
}

.cta__form {
  display: flex;
  justify-content: center;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.cta__form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 18px;
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  background: #14151a;
  color: #b6b8c3;
  padding: 64px 0 24px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}

.footer .logo {
  color: #fff;
}

.footer__brand p {
  margin-top: 12px;
  font-size: 0.9rem;
}

.footer__col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer__col a {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: #b6b8c3;
}

.footer__col a:hover {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero__inner,
  .about__inner {
    grid-template-columns: 1fr;
  }

  .hero__content {
    order: 1;
  }

  .hero__media {
    order: 2;
  }

  .features__grid,
  .testimonials__grid,
  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

  .price-card--highlight {
    transform: none;
  }
}

@media (max-width: 640px) {
  .nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    transition: transform 0.2s ease;
  }

  .nav.is-open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .header__inner .btn--sm {
    display: none;
  }

  .features__grid,
  .testimonials__grid,
  .pricing__grid {
    grid-template-columns: 1fr;
  }

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

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