:root {
  --bg: #121212;
  --text: #e0e0e0;
  --accent: #00bfa5;
  --accent-dark: #00665b;
  --card-bg: #1e1e1e;
  --border: #333;
  --max-width: 1200px;
  --spacing: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}
.header__logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
}
.nav {
  display: flex;
  align-items: center;
}
.nav__list {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin-left: 2rem;
}
.nav__link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.nav__link:hover {
  color: var(--accent);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
  color: #fff;
}
.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  filter: brightness(0.8);
}
.hero__content {
  position: relative;
  max-width: 600px;
  z-index: 1;
}
.hero__title {
  font-size: 2.75rem;
  margin-bottom: 0.5rem;
}
.hero__subtitle {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: background-color 0.2s;
}
.btn:hover {
  background-color: var(--accent-dark);
}

/* Section titles */
.section-title {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  color: var(--accent);
}

/* Features */
.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}
.feature-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}
.feature-card__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}
.feature-card__title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
}
.feature-card__desc {
  font-size: 0.95rem;
  color: #bbb;
}

/* Pricing */
.pricing__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.pricing-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.pricing-card--highlight {
  transform: scale(1.03);
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}
.pricing-card__price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}
.pricing-card__month {
  font-size: 0.875rem;
  color: #bbb;
  margin-bottom: 1rem;
}
.pricing-card__list {
  text-align: left;
  margin: 1rem 0;
  padding-left: 1.5rem;
}
.pricing-card__list li {
  margin-bottom: 0.5rem;
}
.pricing-card__cta {
  width: 100%;
  margin-top: 1rem;
}

/* Testimonials */
.testimonial {
  background-color: var(--card-bg);
  border-left: 4px solid var(--accent);
  padding: 1.5rem 2rem;
  margin-top: 1.5rem;
  font-style: italic;
}
.testimonial cite {
  display: block;
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--accent);
}

/* Contact */
.contact a {
  display: block;
  text-align: center;
  margin-top: 2rem;
}

/* Footer */
.footer {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.9rem;
}
.footer__nav {
  margin-top: 0.5rem;
}
.footer__link {
  color: #bbb;
  margin: 0 0.75rem;
  text-decoration: none;
}
.footer__link:hover {
  color: var(--accent);
}

/* Animation for scroll */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .hero__title {
    font-size: 2rem;
  }
  .hero__subtitle {
    font-size: 1rem;
  }
  .hero__content {
    max-width: 90%;
  }
}

/* Utility */
a { text-decoration: none; }
ul { list-style: none; }