:root {
  --color-ink: #383c34;
  --color-muted: #696d63;
  --color-deep-green: #3f5b4d;
  --color-green: #6d8878;
  --color-soft-green: #dfe8dc;
  --color-pale-green: #edf2e9;
  --color-cream: #f8f5ed;
  --color-white: #fffef9;
  --color-beige: #e8dfd0;
  --color-brown: #795f4b;
  --color-border: #d9d8cc;
  --shadow-soft: 0 20px 50px rgba(62, 72, 61, 0.09);
  --radius-small: 12px;
  --radius-medium: 22px;
  --radius-large: 36px;
  --container: 1160px;
  --header-height: 80px;
  --font-sans: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-white);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.035em;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid #a66b35;
  outline-offset: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--color-ink);
  color: white;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.container.narrow {
  max-width: 930px;
}

.section {
  padding: 112px 0;
}

.section-heading {
  max-width: 650px;
  margin-bottom: 52px;
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading h2 {
  margin: 0 0 20px;
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: clamp(1.9rem, 3.3vw, 2.75rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.035em;
}

.section-heading > p:last-child {
  margin: 0;
  color: var(--color-muted);
}

.section-kicker,
.eyebrow {
  margin: 0 0 14px;
  color: var(--color-deep-green);
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.section-kicker::before {
  display: inline-block;
  width: 28px;
  height: 1px;
  margin-right: 10px;
  background: var(--color-green);
  vertical-align: middle;
  content: "";
}

.button {
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  padding: 12px 27px;
  border: 1px solid var(--color-deep-green);
  border-radius: 999px;
  background: var(--color-deep-green);
  box-shadow: 0 8px 20px rgba(63, 91, 77, 0.16);
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  transition: background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  background: #31493d;
  box-shadow: 0 10px 24px rgba(63, 91, 77, 0.22);
  transform: translateY(-2px);
}

.button-small {
  min-height: 44px;
  padding: 9px 20px;
  font-size: 0.84rem;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid rgba(217, 216, 204, 0.75);
  background: rgba(255, 254, 249, 0.93);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  height: 100%;
  align-items: center;
  overflow: hidden;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 152px;
  height: auto;
  flex: 0 0 auto;
}

.global-nav,
.global-nav ul {
  display: flex;
  align-items: center;
}

.global-nav {
  gap: 28px;
}

.global-nav ul {
  gap: 25px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.global-nav ul a {
  padding: 10px 0;
  color: #4e534c;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
}

.global-nav ul a:hover {
  color: var(--color-deep-green);
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 58px 0 66px;
  background: var(--color-cream);
}

.hero::before {
  position: absolute;
  top: -180px;
  right: -180px;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(109, 136, 120, 0.16);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  display: grid;
  align-items: center;
  width: min(calc(100% - 48px), 1240px);
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.48fr);
  gap: clamp(55px, 5.5vw, 80px);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  padding: 7px 13px;
  border: 1px solid #c9d7c5;
  border-radius: 999px;
  background: rgba(255, 254, 249, 0.72);
  font-size: 0.78rem;
}

.hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: 0.015em;
}

.keep-together {
  white-space: nowrap;
}

.hero-description {
  max-width: 690px;
  margin: 0;
  color: #565c53;
  font-size: 1.03rem;
  line-height: 2;
}

.status-panel {
  width: fit-content;
  margin-top: 20px;
  padding: 15px 20px;
  border-left: 3px solid var(--color-green);
  background: rgba(255, 254, 249, 0.72);
}

.status-panel p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.status-panel .status-label {
  color: var(--color-deep-green);
  font-weight: 700;
}

.status-label span {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--color-green);
  vertical-align: 1px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 25px;
  margin-top: 24px;
}

.text-link {
  padding: 12px 2px;
  color: var(--color-deep-green);
  font-size: 0.9rem;
  font-weight: 700;
  text-underline-offset: 5px;
}

.platform-note {
  margin: 8px 0 0 13px;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.app-visual {
  position: relative;
  display: flex;
  min-height: 545px;
  align-items: center;
  justify-content: center;
}

.visual-backdrop {
  position: absolute;
  width: min(100%, 430px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--color-soft-green);
}

.screen-placeholder {
  position: relative;
  width: min(76%, 284px);
  aspect-ratio: 284 / 535;
  padding: 11px;
  overflow: hidden;
  border: 1px solid #b8beb3;
  border-radius: 42px;
  background: #fdfcf7;
  box-shadow: var(--shadow-soft);
  transform: rotate(2deg);
}

.hero-app-screen {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 32px;
  object-fit: cover;
  object-position: center top;
}

.concerns {
  padding: 92px 0 88px;
  background: var(--color-white);
}

.concern-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.concern-list li {
  display: flex;
  min-height: 104px;
  align-items: center;
  padding: 25px 28px;
  border: 1px solid rgba(205, 211, 199, 0.7);
  border-radius: var(--radius-small);
  background: #f7f7f0;
  font-weight: 600;
}

.concern-list li:nth-child(odd) {
  border-right: 1px solid rgba(205, 211, 199, 0.7);
}

.concern-list span {
  margin-right: 18px;
  color: var(--color-green);
  font-family: Georgia, serif;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.features {
  padding-top: 90px;
  background: var(--color-pale-green);
}

.feature-showcases {
  display: grid;
  gap: 28px;
}

.feature-showcase {
  display: grid;
  align-items: center;
  padding: clamp(42px, 5vw, 62px);
  border: 1px solid rgba(201, 211, 197, 0.8);
  border-radius: 28px;
  background: rgba(255, 254, 249, 0.78);
  grid-template-columns: minmax(0, 1fr) minmax(320px, 370px);
  gap: clamp(55px, 8vw, 105px);
}

.feature-showcase.is-reversed {
  grid-template-columns: minmax(320px, 370px) minmax(0, 1fr);
}

.feature-showcase.is-reversed .feature-copy {
  order: 2;
}

.feature-showcase.is-reversed .feature-media {
  order: 1;
}

.feature-copy {
  max-width: 490px;
}

@media (min-width: 721px) {
  .feature-copy {
    align-self: start;
    margin-top: clamp(72px, 7vw, 100px);
  }
}

.feature-showcase.is-reversed .feature-copy {
  justify-self: end;
}

.feature-index {
  margin: 0 0 26px;
  color: var(--color-green);
  font-family: Georgia, serif;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
}

.feature-copy h3 {
  margin: 0 0 18px;
  font-size: clamp(1.6rem, 2.7vw, 2.1rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.035em;
}

.feature-copy > p:last-child {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 2;
}

.feature-media {
  display: flex;
  min-width: 0;
  justify-content: center;
}

.feature-screen-frame {
  width: min(100%, 330px);
  aspect-ratio: 330 / 628;
  padding: 10px;
  overflow: hidden;
  border: 1px solid rgba(174, 187, 174, 0.85);
  border-radius: 28px;
  background: var(--color-white);
  box-shadow: 0 14px 34px rgba(62, 72, 61, 0.08);
}

.feature-screen-frame img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 19px;
  object-fit: cover;
  object-position: center top;
}

.feature-support-grid {
  display: grid;
  margin-top: 58px;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-support-card {
  min-height: 215px;
  padding: 30px 28px;
  border: 1px solid rgba(201, 211, 197, 0.78);
  border-radius: var(--radius-medium);
  background: rgba(248, 245, 237, 0.72);
}

.feature-support-card h3 {
  margin: 0 0 13px;
  font-size: 1rem;
  line-height: 1.65;
}

.feature-support-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.feature-support-card small {
  display: block;
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 0.72rem;
}

.safety-list h3 {
  margin: 0 0 12px;
  font-size: 1.07rem;
  line-height: 1.6;
}

.safety-list p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.89rem;
}

.how-to-use {
  background: var(--color-white);
}

.steps {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(4, 1fr);
}

.steps li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 20px;
  text-align: center;
}

.steps li:not(:last-child)::after {
  position: absolute;
  top: 25px;
  right: -12px;
  width: 24px;
  height: 10px;
  border-right: 1px solid var(--color-green);
  border-bottom: 1px solid var(--color-green);
  content: "";
  transform: rotate(-45deg);
}

.step-number {
  display: grid;
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  place-items: center;
  border: 1px solid #aabdab;
  border-radius: 50%;
  background: var(--color-pale-green);
  color: var(--color-deep-green);
  font-family: Georgia, serif;
}

.steps p {
  margin: 0 0 6px;
  font-weight: 700;
}

.steps small {
  color: var(--color-muted);
  font-size: 0.78rem;
}

.audience {
  background: var(--color-cream);
}

.audience-grid,
.safety-grid,
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.83fr) minmax(0, 1.17fr);
  gap: clamp(50px, 9vw, 120px);
}

.audience-grid .section-heading,
.safety-grid .section-heading,
.faq-grid .section-heading {
  margin-bottom: 0;
}

.audience-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience-list li {
  position: relative;
  padding: 21px 20px 21px 46px;
  border-bottom: 1px solid #d8d2c6;
  font-size: 1.03rem;
  font-weight: 600;
}

.audience-list li::before {
  position: absolute;
  top: 29px;
  left: 17px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-green);
  border-radius: 50%;
  content: "";
}

.safety {
  background: #52685b;
  color: white;
}

.safety .section-kicker,
.safety .section-heading h2 {
  color: white;
}

.safety .section-kicker::before {
  background: #cbd8c7;
}

.safety .section-heading > p:last-child {
  color: #e2e7df;
}

.safety-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.22);
}

.safety-list article {
  min-height: 210px;
  padding: 30px;
  background: #52685b;
}

.safety-list h3 {
  color: white;
}

.safety-list p {
  color: #e2e7df;
}

.pricing {
  padding-bottom: 80px;
  background: var(--color-white);
}

.test-free-banner {
  display: flex;
  max-width: 780px;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin: 0 auto 26px;
  padding: 18px 28px;
  border-radius: var(--radius-small);
  background: var(--color-soft-green);
  color: var(--color-deep-green);
}

.test-free-banner span {
  font-size: 0.85rem;
}

.pricing-grid {
  display: grid;
  align-items: stretch;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.price-card {
  display: flex;
  min-height: 160px;
  flex-direction: column;
  justify-content: center;
  padding: 28px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-white);
  text-align: center;
}

.plan-name {
  margin: 0 0 12px;
  color: var(--color-deep-green);
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 600;
}

.price-card > p:last-child {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.83rem;
}

.pricing-note {
  margin: 18px 0 0;
  color: var(--color-muted);
  font-size: 0.75rem;
  text-align: center;
}

.closed-test {
  padding-top: 70px;
  background: var(--color-white);
}

.test-panel {
  display: grid;
  padding: clamp(40px, 7vw, 78px);
  border-radius: var(--radius-large);
  background: var(--color-cream);
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(45px, 8vw, 90px);
}

.test-copy h2 {
  margin: 0 0 20px;
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 600;
  line-height: 1.45;
}

.test-copy > p:not(.section-kicker) {
  margin: 0 0 28px;
  color: var(--color-muted);
}

.test-copy small {
  display: block;
  margin: 10px 0 0 12px;
  color: var(--color-muted);
}

.test-copy .test-platform-note {
  width: fit-content;
  margin: 26px 0 0;
  padding: 7px 13px;
  border: 1px solid #c9d7c5;
  border-radius: 999px;
  color: var(--color-deep-green);
  font-size: 0.8rem;
  font-weight: 700;
}

.test-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.test-points li {
  display: flex;
  flex-direction: column;
  padding: 18px 0 18px 34px;
  border-bottom: 1px solid #d8d2c6;
}

.test-points li::before {
  position: absolute;
  margin: 7px 0 0 -31px;
  color: var(--color-green);
  content: "✓";
  font-weight: 700;
}

.test-points strong {
  font-size: 0.96rem;
}

.test-points span {
  color: var(--color-muted);
  font-size: 0.8rem;
}

.join-guide {
  margin-top: 10px;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid #ded9ce;
  border-radius: var(--radius-medium);
  background: var(--color-white);
  grid-column: 1 / -1;
}

.join-guide-heading {
  margin-bottom: 28px;
}

.join-guide-heading h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.5;
}

.join-steps {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.join-steps li {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 28px;
  border-radius: var(--radius-small);
  background: var(--color-pale-green);
}

.join-step-label {
  margin: 0 0 12px;
  color: var(--color-green);
  font-family: Georgia, serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.join-steps h4 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.join-steps li > p:not(.join-step-label) {
  margin: 0 0 22px;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.join-steps .button {
  width: 100%;
  min-height: 64px;
  flex-direction: column;
  gap: 1px;
  margin-top: auto;
}

.button-secondary {
  border-color: var(--color-deep-green);
  background: transparent;
  box-shadow: none;
  color: var(--color-deep-green);
}

.button-secondary:hover {
  background: #e3ebe0;
  color: var(--color-deep-green);
}

.external-note {
  font-size: 0.65rem;
  font-weight: 500;
  opacity: 0.82;
}

.account-note {
  margin: 22px 0 0;
  padding: 17px 20px;
  border-left: 3px solid var(--color-green);
  background: var(--color-cream);
  color: var(--color-muted);
  font-size: 0.82rem;
}

.account-note strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-deep-green);
}

.faq {
  background: var(--color-pale-green);
}

.faq-list details {
  border-bottom: 1px solid #cbd4c8;
}

.faq-list details:first-child {
  border-top: 1px solid #cbd4c8;
}

.faq-list summary {
  position: relative;
  padding: 23px 52px 23px 4px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::before,
.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 13px;
  width: 16px;
  height: 1px;
  background: var(--color-deep-green);
  content: "";
  transition: transform 180ms ease;
}

.faq-list summary::after {
  transform: rotate(90deg);
}

.faq-list details[open] summary::after {
  transform: rotate(0deg);
}

.faq-list details div {
  padding: 0 48px 22px 4px;
}

.faq-list details p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.contact {
  background: var(--color-white);
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  padding-top: 50px;
  padding-bottom: 50px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.contact h2 {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 600;
}

.contact p:not(.section-kicker) {
  margin: 0;
  color: var(--color-muted);
}

.mail-link {
  display: flex;
  min-width: 350px;
  flex-direction: column;
  padding: 22px 28px;
  border: 1px solid #b7c5b7;
  border-radius: var(--radius-small);
  color: var(--color-deep-green);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.mail-link span {
  margin-bottom: 3px;
  font-size: 0.74rem;
  font-weight: 500;
}

.mail-link:hover {
  background: var(--color-pale-green);
}

.site-footer {
  padding: 54px 0 24px;
  background: #3e4a42;
  color: white;
}

.footer-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 35px;
}

.footer-brand p {
  margin: 0 0 8px;
  font-family: "Yu Mincho", "YuMincho", serif;
  font-size: 1.3rem;
  letter-spacing: 0.12em;
}

.footer-brand small {
  color: #d7ddd8;
}

.site-footer nav {
  display: flex;
  gap: 28px;
}

.site-footer nav a {
  color: #eef1ed;
  font-size: 0.82rem;
  text-underline-offset: 5px;
}

.footer-bottom {
  margin-top: 45px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #cbd2cc;
  font-size: 0.75rem;
}

@media (min-width: 961px) {
  .screen-placeholder {
    width: min(81%, 304px);
  }
}

@media (max-width: 960px) {
  :root {
    --header-height: 72px;
  }

  .global-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    align-items: stretch;
    flex-direction: column;
    gap: 20px;
    padding: 24px;
    border-top: 1px solid var(--color-border);
    background: var(--color-white);
    box-shadow: 0 18px 30px rgba(50, 60, 52, 0.1);
  }

  .global-nav.is-open {
    display: flex;
  }

  .global-nav ul {
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .global-nav ul a {
    display: block;
    padding: 13px 4px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
  }

  .menu-button {
    display: grid;
    width: 46px;
    height: 46px;
    padding: 0;
    place-items: center;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--color-ink);
    cursor: pointer;
  }

  .menu-button:hover {
    background: var(--color-pale-green);
  }

  .menu-button-lines {
    display: flex;
    width: 23px;
    flex-direction: column;
    gap: 5px;
  }

  .menu-button-lines span {
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform 180ms ease, opacity 180ms ease;
  }

  .menu-button[aria-expanded="true"] .menu-button-lines span:first-child {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] .menu-button-lines span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] .menu-button-lines span:last-child {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.68fr);
    gap: 35px;
  }

  .hero h1 {
    font-size: clamp(2.3rem, 5.6vw, 3.2rem);
  }

  .app-visual {
    min-height: 470px;
  }

  .feature-showcase {
    padding: 36px 32px;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 310px);
    gap: 36px;
  }

  .feature-showcase.is-reversed {
    grid-template-columns: minmax(260px, 310px) minmax(0, 1fr);
  }

  .feature-screen-frame {
    width: min(100%, 290px);
  }

  .feature-support-card {
    padding: 25px 22px;
  }

  .steps {
    grid-template-columns: 1fr 1fr;
    row-gap: 42px;
  }

  .steps li:nth-child(2)::after {
    display: none;
  }

  .audience-grid,
  .safety-grid,
  .faq-grid {
    gap: 55px;
  }

  .test-panel {
    grid-template-columns: 1fr;
  }

  .test-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 24px;
  }

  .contact-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 36px), var(--container));
  }

  .section {
    padding: 80px 0;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .section-heading h2 {
    font-size: clamp(1.75rem, 8vw, 2.3rem);
  }

  .brand-logo {
    width: 144px;
  }

  .hero {
    padding: 58px 0 76px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .hero h1 {
    margin: 18px 0 26px;
    font-size: clamp(2rem, 9vw, 2.25rem);
    line-height: 1.5;
    letter-spacing: 0.02em;
  }

  .hero h1 br {
    display: none;
  }

  .hero-description {
    font-size: 0.95rem;
  }

  .desktop-break {
    display: none;
  }

  .status-panel {
    width: 100%;
    margin-top: 28px;
    padding: 14px 15px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    margin-top: 34px;
  }

  .hero-actions .text-link {
    text-align: center;
  }

  .platform-note {
    margin-top: 10px;
    margin-left: 0;
    text-align: center;
  }

  .app-visual {
    min-height: auto;
    padding: 25px 0;
  }

  .visual-backdrop {
    width: min(100%, 390px);
  }

  .screen-placeholder {
    width: min(70%, 250px);
  }

  .concern-list {
    grid-template-columns: 1fr;
  }

  .concern-list li,
  .concern-list li:nth-child(odd) {
    min-height: 88px;
    padding: 20px 18px;
    border-right: 1px solid rgba(205, 211, 199, 0.7);
  }

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

  .feature-showcases {
    gap: 20px;
  }

  .feature-showcase,
  .feature-showcase.is-reversed {
    padding: 32px 20px;
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-showcase.is-reversed .feature-copy,
  .feature-showcase.is-reversed .feature-media {
    order: initial;
  }

  .feature-copy,
  .feature-showcase.is-reversed .feature-copy {
    max-width: none;
    justify-self: stretch;
  }

  .feature-index {
    margin-bottom: 18px;
  }

  .feature-copy h3 {
    margin-bottom: 14px;
    font-size: 1.45rem;
  }

  .feature-copy > p:last-child {
    font-size: 0.9rem;
  }

  .feature-screen-frame {
    width: min(100%, 300px);
  }

  .feature-support-grid {
    margin-top: 40px;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .feature-support-card {
    min-height: 0;
    padding: 25px 22px;
  }

  .steps {
    grid-template-columns: 1fr;
    row-gap: 0;
  }

  .steps li {
    flex-direction: row;
    padding: 13px 0;
    text-align: left;
  }

  .steps li:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -4px;
    left: 22px;
    width: 9px;
    height: 9px;
    transform: rotate(45deg);
  }

  .steps li:nth-child(2)::after {
    display: block;
  }

  .step-number {
    flex: 0 0 auto;
    margin: 0 20px 0 0;
  }

  .audience-grid,
  .safety-grid,
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .safety-list {
    grid-template-columns: 1fr;
  }

  .safety-list article {
    min-height: auto;
    padding: 25px 20px;
  }

  .test-free-banner {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
    padding: 17px 20px;
  }

  .price-card {
    min-height: 140px;
    padding: 24px 20px;
  }

  .closed-test {
    padding-top: 35px;
  }

  .test-panel {
    width: min(calc(100% - 20px), var(--container));
    padding: 44px 22px;
    border-radius: 25px;
  }

  .test-copy .button {
    width: 100%;
  }

  .test-points {
    grid-template-columns: 1fr;
  }

  .join-guide {
    padding: 28px 18px;
  }

  .join-steps {
    grid-template-columns: 1fr;
  }

  .join-steps li {
    padding: 24px 18px;
  }

  .faq-list summary {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .contact-inner {
    gap: 30px;
    padding-top: 38px;
    padding-bottom: 38px;
  }

  .mail-link {
    width: 100%;
    min-width: 0;
    padding: 18px 12px;
    font-size: 0.9rem;
    overflow-wrap: anywhere;
  }

  .footer-main,
  .site-footer nav {
    flex-direction: column;
  }

  .site-footer nav {
    gap: 13px;
  }
}

@media (max-width: 380px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .hero h1 {
    font-size: 1.85rem;
  }

  .eyebrow {
    padding-inline: 10px;
    font-size: 0.7rem;
    letter-spacing: 0.07em;
  }

  .button {
    padding-inline: 18px;
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}