/* Navbar */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  backdrop-filter: blur(8px);
  transition: box-shadow var(--transition);
}
.nav--scrolled { box-shadow: 0 1px 0 var(--border); }
.nav__brand { font-weight: 800; letter-spacing: -0.02em; }
.nav__links { display: flex; gap: 1.5rem; }
.nav__link { color: var(--muted); text-decoration: none; transition: color var(--transition); }
.nav__link:hover { color: var(--fg); }
.nav__actions { display: flex; align-items: center; gap: 0.75rem; }
.nav__theme { background: none; border: 0; color: var(--fg); font-size: 1.2rem; cursor: pointer; }

/* Hero */
.hero { text-align: center; padding-top: clamp(3rem, 10vw, 7rem); }
.hero__badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}
.hero__title { font-size: clamp(2.2rem, 7vw, 4.2rem); line-height: 1.05; letter-spacing: -0.03em; margin: 0 0 1rem; }
.hero__subtitle { color: var(--muted); font-size: 1.2rem; max-width: 40ch; margin: 0 auto 2rem; }
.hero__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Feature grid */
.features__grid,
.pricing__grid,
.stats__grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms, transform 500ms;
}
.feature-card.is-visible { opacity: 1; transform: none; }
.feature-card__icon { font-size: 1.8rem; }
.feature-card__tags { display: flex; gap: 0.5rem; list-style: none; padding: 0; margin: 1rem 0 0; flex-wrap: wrap; }
.feature-card__tags li { font-size: 0.75rem; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 0.15rem 0.6rem; }

/* Stats */
.stat { text-align: center; }
.stat__value { font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 800; color: var(--accent); }
.stat__label { color: var(--muted); }

/* Pricing */
.pricing-tier { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.75rem; position: relative; }
.pricing-tier--highlight { border-color: var(--accent); box-shadow: var(--shadow); }
.pricing-tier__badge { position: absolute; top: -0.7rem; right: 1rem; background: var(--accent); color: #fff; padding: 0.2rem 0.7rem; border-radius: 999px; font-size: 0.75rem; }
.pricing-tier__price { font-size: 2rem; font-weight: 800; margin: 0.5rem 0 1rem; }
.pricing-tier__perks { list-style: none; padding: 0; margin: 0 0 1.5rem; display: grid; gap: 0.4rem; color: var(--muted); }

/* Carousel / testimonials */
.carousel { position: relative; }
.carousel__viewport { overflow: hidden; }
.carousel__track { display: flex; transition: transform 400ms ease; }
.testimonial { min-width: 100%; text-align: center; padding: 2rem; margin: 0; }
.carousel__nav { position: absolute; top: 40%; background: var(--bg-elevated); border: 1px solid var(--border); color: var(--fg); border-radius: 50%; width: 2.2rem; height: 2.2rem; cursor: pointer; }
.carousel__nav--prev { left: -0.5rem; }
.carousel__nav--next { right: -0.5rem; }
.carousel__dots { display: flex; gap: 0.5rem; justify-content: center; margin-top: 1rem; }
.carousel__dot { width: 0.6rem; height: 0.6rem; border-radius: 50%; border: 0; background: var(--border); cursor: pointer; }
.carousel__dot.is-active { background: var(--accent); }

/* Accordion / FAQ */
.accordion__row { border-bottom: 1px solid var(--border); }
.accordion__header { width: 100%; display: flex; justify-content: space-between; background: none; border: 0; color: var(--fg); font: inherit; padding: 1.1rem 0; cursor: pointer; text-align: left; }
.accordion__chevron { transition: transform var(--transition); }
.accordion__row.is-open .accordion__chevron { transform: rotate(180deg); }
.accordion__body { overflow: hidden; max-height: 0; color: var(--muted); transition: max-height var(--transition); }

/* Newsletter */
.newsletter__form { display: flex; gap: 0.75rem; max-width: 460px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.newsletter__input { flex: 1; min-width: 220px; padding: 0.8rem 1rem; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-elevated); color: var(--fg); }
.newsletter__error { color: #e5484d; width: 100%; text-align: center; min-height: 1.2em; }

/* Modal */
.modal__overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: grid; place-items: center; z-index: 100; }
.modal { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; position: relative; max-width: 520px; }
.modal__close { position: absolute; top: 0.5rem; right: 0.75rem; background: none; border: 0; color: var(--fg); font-size: 1.4rem; cursor: pointer; }

/* Cookie banner + toasts + chrome */
.cookie { position: fixed; bottom: 1rem; left: 1rem; right: 1rem; max-width: 520px; margin: 0 auto; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; display: flex; gap: 1rem; align-items: center; z-index: 90; }
.cookie.is-hidden { display: none; }
.cookie__actions { display: flex; gap: 0.5rem; margin-left: auto; }
.toast-region { position: fixed; top: 1rem; right: 1rem; display: grid; gap: 0.5rem; z-index: 110; }
.toast { background: var(--bg-elevated); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius-sm); padding: 0.7rem 1rem; box-shadow: var(--shadow); }
.toast--success { border-left-color: #34d399; }
.theme-toggle { position: fixed; bottom: 1rem; right: 1rem; width: 2.6rem; height: 2.6rem; border-radius: 50%; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--fg); cursor: pointer; z-index: 80; }
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 120; }
.scroll-progress__bar { height: 100%; width: 0; background: var(--accent); }
.back-to-top { position: fixed; bottom: 4rem; right: 1rem; width: 2.6rem; height: 2.6rem; border-radius: 50%; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--fg); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity var(--transition); z-index: 80; }
.back-to-top.is-visible { opacity: 1; pointer-events: auto; }
.countdown { display: flex; gap: 0.75rem; justify-content: center; align-items: center; color: var(--muted); }
.countdown__display { font-family: var(--font-mono); color: var(--accent); font-size: 1.2rem; }

/* Footer */
.footer { text-align: center; padding: 3rem 0; border-top: 1px solid var(--border); color: var(--muted); display: grid; gap: 0.5rem; }