/* =========================================================================
   ParentLedger — marketing site stylesheet
   Design tokens + responsive layout for the static landing page, login /
   register bridges, and legal documents. All public copy lives in HTML.
   ========================================================================= */

:root {
  --pl-bg: #f6f8fb;
  --pl-bg-elevated: #ffffff;
  --pl-bg-soft: #eef3fa;
  --pl-text: #0f172a;
  --pl-text-muted: #4b5563;
  --pl-text-dim: #6b7280;
  --pl-border: #e5e9f0;
  --pl-border-strong: #d3dae4;

  --pl-primary: #1f4f9e;
  --pl-primary-strong: #173d7b;
  --pl-primary-soft: #e3eaf6;
  --pl-accent: #0d8a7d;
  --pl-accent-soft: #e0f2ef;
  --pl-warm: #c97a4f;

  --pl-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --pl-shadow-md: 0 6px 18px rgba(15, 23, 42, 0.07);
  --pl-shadow-lg: 0 18px 48px rgba(15, 23, 42, 0.12);

  --pl-radius-sm: 10px;
  --pl-radius-md: 16px;
  --pl-radius-lg: 24px;

  --pl-container: 1180px;
  --pl-nav-height: 72px;

  --pl-font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --pl-font-display: "Inter", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--pl-nav-height) + 12px);
}

body {
  margin: 0;
  font-family: var(--pl-font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--pl-text);
  background: var(--pl-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--pl-primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  font-family: var(--pl-font-display);
  color: var(--pl-text);
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.1rem, 4vw + 1rem, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
h2 {
  font-size: clamp(1.6rem, 2.4vw + 0.8rem, 2.4rem);
  line-height: 1.2;
}
h3 {
  font-size: 1.15rem;
  line-height: 1.35;
}
p {
  margin: 0 0 1em;
  color: var(--pl-text-muted);
}

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

.section {
  padding: 88px 0;
}
.section--muted {
  background: var(--pl-bg-elevated);
}
.section--soft {
  background: linear-gradient(180deg, var(--pl-bg) 0%, var(--pl-bg-soft) 100%);
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pl-primary);
  background: var(--pl-primary-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow--accent {
  color: var(--pl-accent);
  background: var(--pl-accent-soft);
}

/* --- buttons ----------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  font-family: inherit;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease,
    background 120ms ease, color 120ms ease;
  white-space: nowrap;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}
.btn--primary {
  background: linear-gradient(120deg, var(--pl-primary) 0%, #2c6acb 100%);
  color: #ffffff;
  box-shadow: var(--pl-shadow-md);
}
.btn--primary:hover {
  box-shadow: var(--pl-shadow-lg);
  color: #ffffff;
}
.btn--ghost {
  background: transparent;
  color: var(--pl-text);
  border-color: var(--pl-border-strong);
}
.btn--ghost:hover {
  background: var(--pl-bg-soft);
  color: var(--pl-text);
}
.btn--accent {
  background: var(--pl-accent);
  color: #ffffff;
  box-shadow: var(--pl-shadow-md);
}
.btn--accent:hover {
  background: #0c7a6e;
  color: #ffffff;
}
.btn--lg {
  padding: 16px 26px;
  font-size: 1.02rem;
}
.btn--block {
  width: 100%;
}

/* --- navigation -------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
.nav.is-scrolled {
  border-color: var(--pl-border);
  box-shadow: var(--pl-shadow-sm);
}
.nav__inner {
  height: var(--pl-nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--pl-text);
  letter-spacing: -0.01em;
}
.nav__brand:hover {
  text-decoration: none;
  color: var(--pl-text);
}
.nav__brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--pl-primary), var(--pl-accent));
  display: grid;
  place-items: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 0.96rem;
  letter-spacing: 0.02em;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav__links a {
  color: var(--pl-text-muted);
  font-weight: 500;
  font-size: 0.96rem;
}
.nav__links a:hover {
  color: var(--pl-text);
  text-decoration: none;
}
.nav__cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav__toggle {
  display: none;
  background: none;
  border: 0;
  padding: 6px;
  cursor: pointer;
  color: var(--pl-text);
}
.nav__toggle svg {
  width: 26px;
  height: 26px;
}
.nav__mobile {
  display: none;
  border-top: 1px solid var(--pl-border);
  background: var(--pl-bg-elevated);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 18px;
}
.nav__mobile a {
  color: var(--pl-text);
  font-weight: 500;
}
.nav__mobile.is-open {
  display: flex;
}

/* --- hero -------------------------------------------------------------- */

.hero {
  position: relative;
  padding: 96px 0 80px;
  background: radial-gradient(
      ellipse at top right,
      rgba(31, 79, 158, 0.08) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse at bottom left,
      rgba(13, 138, 125, 0.06) 0%,
      transparent 50%
    ),
    linear-gradient(180deg, #ffffff 0%, var(--pl-bg) 100%);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 60px;
}
.hero__copy h1 {
  margin-bottom: 18px;
}
.hero__lead {
  font-size: 1.15rem;
  color: var(--pl-text-muted);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.92rem;
  color: var(--pl-text-dim);
}
.hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero__meta svg {
  width: 16px;
  height: 16px;
  color: var(--pl-accent);
}

/* phone mockup --------- */

.mockup {
  position: relative;
  margin: 0 auto;
  max-width: 360px;
  aspect-ratio: 9 / 18.5;
  border-radius: 44px;
  background: linear-gradient(160deg, #0f172a 0%, #1f2937 100%);
  padding: 14px;
  box-shadow: var(--pl-shadow-lg),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}
.mockup::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 28px;
  background: #0a0e1a;
  border-radius: 999px;
  z-index: 2;
}
.mockup__screen {
  position: relative;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, var(--pl-bg-soft) 100%);
  display: flex;
  flex-direction: column;
}
.mockup__topbar {
  padding: 56px 22px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--pl-text-dim);
}
.mockup__hello {
  font-size: 0.92rem;
  color: var(--pl-text);
  font-weight: 600;
}
.mockup__cards {
  padding: 0 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}
.mockup__card {
  background: #ffffff;
  border: 1px solid var(--pl-border);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  font-size: 0.86rem;
}
.mockup__card-title {
  font-weight: 600;
  color: var(--pl-text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.mockup__card-meta {
  color: var(--pl-text-dim);
  font-size: 0.78rem;
}
.mockup__pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--pl-accent-soft);
  color: var(--pl-accent);
  margin-left: auto;
}
.mockup__pill--blue {
  background: var(--pl-primary-soft);
  color: var(--pl-primary);
}
.mockup__pill--warm {
  background: #fdecd9;
  color: var(--pl-warm);
}
.mockup__week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-top: 8px;
}
.mockup__week span {
  text-align: center;
  font-size: 0.66rem;
  font-weight: 600;
  border-radius: 8px;
  padding: 8px 0;
  background: var(--pl-bg-soft);
  color: var(--pl-text);
}
.mockup__week span.is-mom {
  background: var(--pl-primary);
  color: #ffffff;
}
.mockup__week span.is-dad {
  background: var(--pl-accent);
  color: #ffffff;
}

/* --- section heading --------------------------------------------------- */

.section__head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section__head h2 {
  margin-bottom: 14px;
}
.section__head p {
  font-size: 1.05rem;
}
.section__head--left {
  margin-left: 0;
  text-align: left;
}

/* --- features grid ----------------------------------------------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature {
  background: var(--pl-bg-elevated);
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-md);
  padding: 26px 24px;
  transition: transform 160ms ease, box-shadow 160ms ease,
    border-color 160ms ease;
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--pl-shadow-md);
  border-color: var(--pl-border-strong);
}
.feature__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--pl-primary-soft);
  color: var(--pl-primary);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.feature__icon svg {
  width: 22px;
  height: 22px;
}
.feature--accent .feature__icon {
  background: var(--pl-accent-soft);
  color: var(--pl-accent);
}
.feature--warm .feature__icon {
  background: #fdecd9;
  color: var(--pl-warm);
}
.feature h3 {
  margin-bottom: 6px;
}
.feature p {
  margin: 0;
  font-size: 0.95rem;
}

/* --- why list ---------------------------------------------------------- */

.why {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.why__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.why__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
}
.why__num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--pl-primary);
  color: #ffffff;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.why__item h3 {
  margin-bottom: 4px;
}
.why__item p {
  margin: 0;
  font-size: 0.96rem;
}

/* --- pricing ----------------------------------------------------------- */

.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}
.plan {
  position: relative;
  background: var(--pl-bg-elevated);
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-lg);
  padding: 32px 28px 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.plan--featured {
  border-color: var(--pl-primary);
  box-shadow: 0 0 0 4px rgba(31, 79, 158, 0.08), var(--pl-shadow-md);
  transform: translateY(-6px);
}
.plan--featured::after {
  content: "Best value";
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--pl-primary);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.plan__name {
  font-weight: 700;
  font-size: 1.05rem;
}
.plan__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.plan__price .amount {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--pl-text);
  letter-spacing: -0.02em;
}
.plan__price .unit {
  color: var(--pl-text-dim);
  font-weight: 500;
}
.plan__hint {
  color: var(--pl-text-dim);
  font-size: 0.92rem;
  margin: -6px 0 0;
}
.plan__features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.plan__features li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 0.96rem;
  color: var(--pl-text-muted);
}
.plan__features svg {
  width: 18px;
  height: 18px;
  color: var(--pl-accent);
  margin-top: 4px;
}
.plan__cta {
  margin-top: auto;
}

/* --- security ---------------------------------------------------------- */

.security {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.security__item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: start;
  padding: 20px;
  background: var(--pl-bg-elevated);
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-md);
}
.security__item svg {
  width: 22px;
  height: 22px;
  color: var(--pl-accent);
}
.security__item h3 {
  margin-bottom: 4px;
}
.security__item p {
  margin: 0;
  font-size: 0.95rem;
}

/* --- download / beta --------------------------------------------------- */

.download {
  background: linear-gradient(
    135deg,
    var(--pl-primary) 0%,
    var(--pl-primary-strong) 100%
  );
  color: #ffffff;
  border-radius: var(--pl-radius-lg);
  padding: 56px 44px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--pl-shadow-lg);
}
.download h2,
.download h3 {
  color: #ffffff;
}
.download p {
  color: rgba(255, 255, 255, 0.86);
}
.download__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #ffffff;
  border-radius: 14px;
  text-align: left;
  line-height: 1.15;
  text-decoration: none;
  cursor: pointer;
}
a.store-badge:hover {
  text-decoration: none;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.28);
}
.store-badge:hover {
  text-decoration: none;
  color: #ffffff;
}
.store-badge svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}
.store-badge small {
  display: block;
  font-size: 0.7rem;
  opacity: 0.78;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.store-badge strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 600;
}

/* --- contact ----------------------------------------------------------- */

.contact-card {
  background: var(--pl-bg-elevated);
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 580px;
  margin: 0 auto;
  box-shadow: var(--pl-shadow-sm);
}
.contact-card h2 {
  margin-bottom: 12px;
}
.contact-email {
  display: inline-block;
  margin-top: 4px;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* --- footer ------------------------------------------------------------ */

.footer {
  background: #0f172a;
  color: rgba(255, 255, 255, 0.72);
  padding: 48px 0 32px;
  margin-top: 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.footer__brand {
  color: #ffffff;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer__brand:hover {
  text-decoration: none;
  color: #ffffff;
}
.footer__brand .nav__brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  font-size: 0.86rem;
}
.footer p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
  margin: 0 0 12px;
}
.footer h4 {
  color: #ffffff;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.footer a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.96rem;
}
.footer a:hover {
  color: #ffffff;
}
.footer__bottom {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.55);
}

/* --- legal pages ------------------------------------------------------- */

.legal {
  background: var(--pl-bg-elevated);
  padding: 64px 0 80px;
}
.legal__inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}
.legal h1 {
  margin-bottom: 8px;
}
.legal__meta {
  color: var(--pl-text-dim);
  font-size: 0.92rem;
  margin-bottom: 32px;
}
.legal h2 {
  margin: 36px 0 12px;
  font-size: 1.4rem;
}
.legal h3 {
  margin: 24px 0 8px;
  font-size: 1.1rem;
}
.legal p,
.legal li {
  color: #1f2937;
  font-size: 1rem;
  line-height: 1.7;
}
.legal ul {
  padding-left: 22px;
}
.legal ul li {
  margin-bottom: 8px;
}
.legal hr {
  border: 0;
  border-top: 1px solid var(--pl-border);
  margin: 32px 0;
}
.legal__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  font-weight: 500;
}

/* --- bridge pages (login / register) ----------------------------------- */

.bridge {
  min-height: calc(100vh - var(--pl-nav-height));
  display: flex;
  align-items: center;
  padding: 56px 0 80px;
  background: linear-gradient(180deg, #ffffff 0%, var(--pl-bg) 100%);
}
.bridge__card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--pl-bg-elevated);
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-lg);
  padding: 40px;
  box-shadow: var(--pl-shadow-md);
}
.bridge__card h1 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}
.bridge__card p {
  margin-bottom: 18px;
}
.bridge__steps {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  counter-reset: step;
  display: grid;
  gap: 14px;
}
.bridge__steps li {
  position: relative;
  padding: 14px 16px 14px 52px;
  border: 1px solid var(--pl-border);
  border-radius: var(--pl-radius-sm);
  background: var(--pl-bg);
  color: var(--pl-text);
  font-size: 0.96rem;
  counter-increment: step;
}
.bridge__steps li::before {
  content: counter(step);
  position: absolute;
  top: 50%;
  left: 14px;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--pl-primary);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.86rem;
}
.bridge__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- responsive -------------------------------------------------------- */

@media (max-width: 960px) {
  .hero {
    padding: 64px 0 48px;
  }
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero__cta,
  .hero__meta {
    justify-content: center;
  }
  .hero__lead {
    margin-left: auto;
    margin-right: auto;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .pricing {
    grid-template-columns: 1fr;
  }
  .plan--featured {
    transform: none;
  }
  .download {
    grid-template-columns: 1fr;
    padding: 40px 28px;
    text-align: center;
  }
  .download__buttons {
    justify-content: center;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .nav__links,
  .nav__cta .btn--ghost {
    display: none;
  }
  .nav__toggle {
    display: inline-flex;
  }
  .section {
    padding: 64px 0;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .security {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .legal {
    padding: 40px 0 56px;
  }
  .bridge__card {
    padding: 28px 22px;
  }
}

@media (max-width: 420px) {
  .btn {
    padding: 12px 18px;
    font-size: 0.94rem;
  }
  .btn--lg {
    padding: 14px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .feature,
  .btn {
    transition: none;
  }
}