/* health-promo — Kotolink health brand tones (teal) */
:root {
  --ink: #0f1c1c;
  --muted: #3d5252;
  --paper: #f3f5fb;
  --line: #cfd6ea;
  --brand: #3b5bdb;
  --brand-deep: #2a439f;
  --soft: #e8edfb;
  --warm: #fff3df;
  --font-display: "Figtree", "Zen Kaku Gothic New", sans-serif;
  --font-body: "Zen Kaku Gothic New", sans-serif;
  --text-base: 1.0625rem; /* 17px */
  --shadow: 0 18px 40px rgba(15, 40, 40, 0.1);
  --radius: 18px;
  --max: 68rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background:
    radial-gradient(1000px 420px at 8% -8%, #d7efef 0%, transparent 55%),
    radial-gradient(800px 360px at 100% 0%, var(--warm) 0%, transparent 48%),
    var(--paper);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand-deep);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0.75rem;
  top: 0.75rem;
}

/* mock-banner removed for production */

.mock-banner p {
  margin: 0;
  max-width: var(--max);
  margin-inline: auto;
}

.site-header {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
}

.brand {
  text-decoration: none;
  min-width: 0;
}

.brand__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-header__free {
  flex-shrink: 0;
  color: var(--brand);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.75rem 2rem;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.5rem;
}

.hero__eyebrow {
  margin: 0 0 0.55rem;
  color: var(--brand-deep);
  font-weight: 700;
  font-size: 1.05rem;
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.5vw, 2.85rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero__lead {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 34rem;
}

.hero__promise-line {
  margin: 0 0 0.75rem;
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--brand-deep);
}

.hero__promises {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.7rem;
}

.hero__promises li {
  background: var(--soft);
  color: var(--brand-deep);
  border: 1px solid #b9d7c6;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-weight: 700;
  font-size: 0.98rem;
}

.hero__cta-wrap,
.closing__cta-wrap {
  margin: 0;
}

.page-crumb {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-crumb a {
  color: var(--brand-deep);
}

.hero__promise-line + .hero__cta-wrap {
  margin-top: 1.15rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.85rem 1.45rem;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.08rem;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(26, 107, 67, 0.22);
  transition: background 0.15s ease, transform 0.15s ease;
}

.cta:hover,
.cta:focus-visible {
  background: var(--brand-deep);
  transform: translateY(-1px);
}

.hero__visual {
  margin: 0;
}

.hero__visual img,
.promise__visual img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.promise {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2.25rem;
}

.promise__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem 2rem;
  align-items: center;
}

.promise--flip .promise__visual {
  order: 2;
}

.promise--flip .promise__copy {
  order: 1;
}

.promise__visual {
  margin: 0;
}

.promise__kicker {
  margin: 0 0 0.4rem;
  color: var(--brand);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
}

.promise__copy h2,
.howto__intro h2,
.closing h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.promise__copy p,
.howto__intro p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 34rem;
}

.howto {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.5rem 1.25rem 2.75rem;
}

.howto__intro {
  margin-bottom: 1.35rem;
}

.howto__lead {
  margin: 0 0 0.55rem !important;
  color: var(--ink) !important;
  font-weight: 700;
  font-size: 1.2rem !important;
}

.howto__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.howto__steps li {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  align-items: flex-start;
  min-height: 7.5rem;
  padding: 1.1rem 1.15rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.howto__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
}

.howto__label {
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.4;
}

.features {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.25rem 1.25rem 2.75rem;
}

.screens {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.5rem 1.25rem 2.5rem;
  border-top: 1px solid var(--line);
}

.screens__intro {
  margin-bottom: 1.25rem;
}

.screens__intro h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.screens__intro p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.screens__more {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  text-align: center;
}

.features--compact {
  padding-top: 0;
  padding-bottom: 1.5rem;
}

.features--compact .features__about {
  margin-top: 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.features__intro {
  margin-bottom: 1.25rem;
}

.features__intro h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.features__intro p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 36rem;
}

.phone-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 1.75rem;
  margin: 0 0 2rem;
}

.phone-demo {
  margin: 0;
}

.phone-demo > figcaption {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--brand-deep);
}

.phone-demo__note {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.phone {
  max-width: 22rem;
  margin: 0 auto;
}

.phone__chrome {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 34rem;
}

.phone__status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  font-weight: 800;
  font-size: 0.92rem;
}

.phone__status img {
  border-radius: 8px;
}

.phone__free {
  margin-left: auto;
  color: var(--brand);
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.phone__appbar {
  padding: 0.75rem 0.9rem 0.55rem;
  background: linear-gradient(180deg, #fff, #f7fbf8);
  border-bottom: 1px solid var(--line);
}

.phone__brand {
  margin: 0;
  font-size: 0.72rem;
  color: var(--brand);
  font-weight: 700;
}

.phone__title {
  margin: 0.1rem 0 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
}

.phone__body {
  flex: 1;
  padding: 0.75rem 0.85rem 0.85rem;
  background: var(--paper);
}

.phone__progress {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 0.7rem;
}

.phone__progress p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.phone__progress-bar {
  height: 8px;
  background: #dfece5;
  border-radius: 999px;
  overflow: hidden;
}

.phone__progress-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--brand), #3aa56d);
}

.phone__items {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.phone__item {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 0.55rem;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.55rem 0.65rem;
  min-height: 3.4rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.phone__item img {
  width: 2.4rem;
  height: 2.4rem;
  object-fit: contain;
  background: #fffdf9;
  border-radius: 8px;
}

.phone__item--done {
  opacity: 0.55;
}

.phone__item--done span:last-child {
  text-decoration: line-through;
}

.phone__check {
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.phone__check--on {
  border-color: var(--brand);
  background: var(--brand);
  box-shadow: inset 0 0 0 2px #fff;
}

.phone__actions {
  display: grid;
  gap: 0.4rem;
}

.phone__btn {
  display: block;
  text-align: center;
  border-radius: 12px;
  padding: 0.65rem 0.75rem;
  font-weight: 700;
  font-size: 0.88rem;
}

.phone__btn--primary {
  background: var(--brand);
  color: #fff;
}

.phone__btn--soft {
  background: var(--soft);
  color: var(--brand-deep);
}

.phone__btn--done {
  background: var(--ink);
  color: #fff;
}

.phone__lead {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.phone__cats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-bottom: 0.7rem;
}

.phone__cat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.phone__cat-media {
  aspect-ratio: 5 / 4;
  display: grid;
  place-items: center;
  background: #fffdf9;
  border-bottom: 1px solid var(--line);
  padding: 0.35rem;
}

.phone__cat-media img {
  width: 70%;
  max-width: 4.5rem;
  aspect-ratio: 1;
  object-fit: contain;
}

.phone__cat-body {
  display: grid;
  gap: 0.05rem;
  padding: 0.45rem 0.55rem 0.55rem;
}

.phone__cat-body strong {
  font-size: 0.9rem;
}

.phone__cat-body span {
  color: var(--muted);
  font-size: 0.75rem;
}

.phone__tabbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 0.45rem 0.25rem 0.55rem;
}

.phone__tabbar span {
  text-align: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: #4a5c53;
  padding: 0.35rem 0;
}

.phone__tabbar .is-active {
  color: var(--brand);
}

.features__tabs {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.features__tabs li {
  padding: 1.05rem 1.1rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.features__tabs h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--brand-deep);
}

.features__tabs p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.features__detail,
.features__about {
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
}

.features__about {
  margin-top: 1.25rem;
}

.features__detail h3,
.features__about h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
}

.features__detail ul,
.features__about ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.features__detail li,
.features__about li {
  margin: 0.4rem 0;
}

.closing {
  max-width: var(--max);
  margin: 0 auto 2rem;
  padding: 2rem 1.25rem;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(231, 243, 236, 0.9), rgba(255, 255, 255, 0.75));
  border-block: 1px solid var(--line);
}

.closing h2 {
  margin-bottom: 1.15rem;
}

.site-footer {
  padding: 1.35rem 1.25rem 2rem;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

.site-footer p {
  margin: 0.25rem 0;
}

.site-footer a {
  color: var(--brand-deep);
  font-weight: 700;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 1.25rem;
  }

  .hero__visual {
    order: -1;
  }

  .promise__grid,
  .promise--flip .promise__grid {
    grid-template-columns: 1fr;
  }

  .promise--flip .promise__visual,
  .promise--flip .promise__copy {
    order: initial;
  }

  .howto__steps {
    grid-template-columns: 1fr;
  }

  .howto__steps li {
    min-height: 0;
    flex-direction: row;
    align-items: center;
    gap: 0.9rem;
  }

  .features__tabs {
    grid-template-columns: 1fr 1fr;
  }

  .phone-pair {
    grid-template-columns: 1fr;
  }

  .phone {
    max-width: 20rem;
  }
}

@media (max-width: 520px) {
  .features__tabs {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .hero__promises li {
    width: 100%;
    text-align: center;
  }

  .cta {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cta {
    transition: none;
  }

  .cta:hover,
  .cta:focus-visible {
    transform: none;
  }
}