/* ── Navigation ── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 80px;
  display: flex;
  align-items: center;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav--scrolled {
  background-color: var(--nav-scrolled-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-default);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
  .nav__inner {
    padding: 0 var(--space-3xl);
  }
}

.nav__logo {
  font-family: sans-serif;
  font-size: 12px;
  box-sizing: border-box;
  display: flex;
  flex-flow: row;
  flex: none;
  place-content: center;
  align-items: center;
  gap: 6px;
  width: min-content;
  height: min-content;
  padding: 0;
  text-decoration: none;
  position: relative;
  overflow: visible;
  opacity: 1;
}

.nav__logo span {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2em;
  letter-spacing: 0em;
  color: var(--text-primary);
  white-space: pre;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__buttons {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__buttons .btn {
  height: 40px;
  padding: 8px 14px;
  font-size: 14px;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
}

/* ── Hamburger ── */

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav__hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav__hamburger-line + .nav__hamburger-line {
  margin-top: 5px;
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 767px) {
  .nav__hamburger {
    display: flex;
  }

  .nav__right {
    display: none;
  }
}

/* ── Mobile Menu Overlay ── */

.mobile-menu {
  display: none;
}

@media (max-width: 767px) {
  .mobile-menu {
    display: block;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background-color: rgba(247, 243, 234, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-default);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    max-width: var(--container-max);
    margin: 0 auto;
  }

  .mobile-menu__links {
    display: flex;
    flex-direction: column;
  }

  .mobile-menu__link {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-muted);
    transition: color 0.2s ease;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-subtle);
  }

  .mobile-menu__link:hover,
  .mobile-menu__link:active {
    color: var(--text-primary);
  }

}

/* ── Hero ── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding-top: calc(80px + var(--space-3xl));
  padding-bottom: var(--space-3xl);
}

/* "$50 in free usage" / "no credit card" trust lines (stacked) */
.trial-note {
  font-size: var(--text-sm);
  color: var(--text-dimmed);
  letter-spacing: 0.01em;
  line-height: 1.6;
}

.trial-note strong {
  display: block;
  color: var(--color-primary-strong);
  font-weight: 700;
}

.trial-note strong::before {
  content: "•";
  margin-right: 0.5em;
  color: var(--color-primary);
}

/* ── Section header ── */

.section-head {
  max-width: 760px;
  margin: 0 auto var(--space-3xl);
  text-align: center;
}

.section-head .eyebrow {
  margin-bottom: var(--space-md);
}

.section-head__title {
  font-size: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.section-head__subtitle {
  font-size: var(--text-lg);
  color: var(--text-muted);
  line-height: 1.55;
}

/* ── How it works — steps ── */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  max-width: 1120px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.step__num {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
}

.step__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.step__desc {
  font-size: var(--text-base);
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Use cases — stub grid ── */

.usecases {
  max-width: 1120px;
  margin: 0 auto;
}

.usecases__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .usecases__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 980px) {
  .usecases__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.usecase {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-lg);
  transition: box-shadow 0.15s linear, border-color 0.15s linear, transform 0.15s ease;
}

.usecase:hover {
  border-color: var(--border-accented);
  box-shadow: var(--shadow-card-lg);
  transform: translateY(-2px);
}

.usecase__tag {
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  color: var(--text-dimmed);
  background: var(--bg-surface);
}

.usecase__tag--new {
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.usecase__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.usecase__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

.usecase__more {
  margin-top: auto;
  padding-top: 6px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dimmed);
}

.usecases__note {
  text-align: center;
  margin-top: var(--space-2xl);
  font-size: var(--text-sm);
  color: var(--text-dimmed);
}

/* ── Capabilities band ── */

.caps {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl) var(--space-2xl);
}

@media (min-width: 640px) {
  .caps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 980px) {
  .caps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.cap {
  border-left: 2px solid var(--color-primary);
  padding: 2px 0 2px var(--space-lg);
}

.cap__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.cap__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Feature blocks (screenshots) ── */

.feature-block {
  max-width: 1120px;
  margin: 0 auto;
}

.feature-block + .feature-block {
  margin-top: var(--space-5xl);
  padding-top: var(--space-5xl);
  position: relative;
}

.feature-block + .feature-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-default), transparent);
}

.feature-block__title {
  font-size: clamp(1.25rem, 2vw + 0.25rem, 1.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0 0 var(--space-xl);
}

.feature-block__visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-card-lg);
  image-rendering: -webkit-optimize-contrast;
}

.feature-block--stacked .feature-block__title {
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-2xl);
}

/* ── CTA section ── */

.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-muted);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.cta-section__title {
  font-size: clamp(2rem, 3vw + 0.5rem, 2.75rem);
  margin-bottom: var(--space-md);
}

.cta-section__subtitle {
  font-size: 1.375rem;
  color: var(--text-muted);
  line-height: 1.4;
  max-width: 540px;
  margin: 0 auto var(--space-lg);
}

.cta-section__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

/* ── Footer ── */

.footer {
  border-top: 1px solid var(--border-default);
  padding: var(--space-2xl) 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  font-size: var(--text-sm);
  color: var(--text-dimmed);
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.footer__social {
  display: flex;
  gap: var(--space-lg);
}

.footer__social a {
  color: var(--text-dimmed);
  transition: color 0.2s ease;
}

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

.footer__social svg {
  width: 20px;
  height: 20px;
}