/* ===== Navbar ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.nav__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--color-ink);
}

.nav__brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
  flex: none;
}

.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  cursor: pointer;
}

.nav__toggle-bar {
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-ink);
  border-radius: 2px;
}

.nav__links {
  position: fixed;
  inset: 64px 0 auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-4) var(--space-5) var(--space-6);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.nav.is-open .nav__links {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav__link {
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-ink-soft);
  font-weight: 500;
  border-bottom: 1px solid var(--color-line);
}

.nav__actions {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-4);
}

.nav__actions .btn {
  flex: 1;
}

.btn-sm {
  padding: 0.7rem 1.15rem;
}

@media (min-width: 900px) {
  .nav__toggle {
    display: none;
  }

  .nav__links {
    position: static;
    flex-direction: row;
    align-items: center;
    background: transparent;
    border: none;
    padding: 0;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    gap: var(--space-6);
  }

  .nav__link {
    padding: 0;
    border-bottom: none;
    font-size: var(--step-small);
  }

  .nav__actions {
    padding-top: 0;
    margin-left: var(--space-3);
  }

  .nav__actions .btn {
    flex: none;
  }
}

/* ===== Hero ============================================================ */
.hero {
  padding-block: var(--space-8) var(--space-9);
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 65%);
}

.hero__grid {
  display: grid;
  gap: var(--space-7);
}

.hero__copy {
  max-width: 42rem;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-h1);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin-block: var(--space-4) var(--space-5);
}

.hero__lead {
  font-size: var(--step-lead);
  color: var(--color-ink-soft);
  max-width: 38rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.hero__pulse {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-accent);
  padding: var(--space-6) var(--space-5) var(--space-5);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero__pulse::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto auto;
  width: 60%;
  height: 160%;
  background: radial-gradient(closest-side, rgba(166, 240, 209, 0.25), transparent);
}

.pulse-line {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--color-accent);
  opacity: 0.9;
}

.pulse-line path {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw-pulse 3.6s var(--ease-out) infinite;
}

@keyframes draw-pulse {
  0% {
    stroke-dashoffset: 1400;
  }
  55% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: -1400;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pulse-line path {
    animation: none;
    stroke-dashoffset: 0;
  }
}

.hero__pulse-caption {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-white);
  background: rgba(20, 12, 41, 0.35);
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-pill);
  width: fit-content;
}

.hero__pulse-caption .badge-dot {
  background: var(--color-accent);
}

@media (min-width: 960px) {
  .hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .hero__pulse {
    min-height: 280px;
  }
}

/* ===== Role switch ====================================================== */
.roles {
  padding-block: var(--space-8);
}

.roles__eyebrow {
  margin-bottom: var(--space-4);
}

.roles__grid {
  display: grid;
  gap: var(--space-5);
}

.role-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.role-card--doctor {
  background: var(--color-bg-soft);
}

.role-card__title {
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 600;
  color: var(--color-ink);
}

.role-card__body {
  color: var(--color-ink-soft);
}

.role-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-block: var(--space-2) var(--space-3);
}

.role-card__list li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--step-small);
  color: var(--color-ink-soft);
}

.role-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

@media (min-width: 760px) {
  .roles__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== Trust strip ======================================================= */
.trust {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-soft);
}

.trust__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5) var(--space-7);
  padding-block: var(--space-5);
}

.trust__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.trust__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
}

/* ===== How it works ====================================================== */
.how {
  padding-block: var(--space-9);
}

.how__head {
  max-width: 32rem;
  margin-bottom: var(--space-6);
}

.how__title {
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 600;
  margin-top: var(--space-2);
}

.how__steps {
  display: grid;
  gap: var(--space-5);
  counter-reset: none;
}

.how__step {
  padding: var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.how__step-n {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.how__step-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.how__step-body {
  color: var(--color-ink-soft);
  font-size: var(--step-small);
}

@media (min-width: 760px) {
  .how__steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== Doctor panel ======================================================= */
.doctor-panel {
  background: var(--color-primary);
  color: var(--color-white);
  padding-block: var(--space-9);
}

.eyebrow--inverted {
  color: var(--color-accent);
}

.doctor-panel__inner {
  display: grid;
  gap: var(--space-6);
}

.doctor-panel__title {
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 600;
  margin-top: var(--space-2);
  margin-bottom: var(--space-3);
}

.doctor-panel__lead {
  color: rgba(255, 255, 255, 0.82);
  max-width: 30rem;
  margin-bottom: var(--space-5);
}

.doctor-panel__grid {
  display: grid;
  gap: var(--space-4);
}

.doctor-feature {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.doctor-feature__title {
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.doctor-feature__body {
  font-size: var(--step-small);
  color: rgba(255, 255, 255, 0.78);
}

@media (min-width: 760px) {
  .doctor-panel__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1080px) {
  .doctor-panel__inner {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }
}

/* ===== Final CTA ========================================================== */
.final-cta {
  padding-block: var(--space-9);
  background: var(--color-bg-soft);
}

.final-cta__inner {
  text-align: center;
  max-width: 34rem;
  margin-inline: auto;
}

.final-cta__title {
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 600;
}

.final-cta__body {
  color: var(--color-ink-soft);
  margin-top: var(--space-3);
}

.final-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.btn-ghost--on-dark {
  border-color: var(--color-primary-line);
}

/* ===== Footer ============================================================== */
.footer {
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-8);
}

.footer__grid {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
}

.footer__tagline {
  color: var(--color-ink-soft);
  font-size: var(--step-small);
  margin-top: var(--space-3);
  max-width: 20rem;
}

.footer__heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-3);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col a {
  text-decoration: none;
  color: var(--color-ink-soft);
  font-size: var(--step-small);
}

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

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border-top: 1px solid var(--color-line);
  padding-block: var(--space-5);
  font-size: 0.8rem;
  color: var(--color-ink-faint);
}

@media (min-width: 760px) {
  .footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}