:root {
  color-scheme: light;
  --ink: #11213b;
  --muted: #64748b;
  --line: #b8cde8;
  --paper: #ffffff;
  --soft: #d5e8f8;
  --soft-blue: #d5e8f8;
  --navy: #061b4a;
  --blue: #0a4ea3;
  --cyan: #12a9d8;
  --gold: #d9bc44;
  --gold-soft: #fff5bd;
  --shadow: 0 18px 50px rgba(8, 27, 74, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #d5e8f8;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.9;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 48px);
  background: rgba(247, 251, 255, 0.92);
  border-bottom: 1px solid rgba(151, 178, 216, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  color: var(--navy);
  font-family: "Noto Serif JP", serif;
  font-size: 1.24rem;
  font-weight: 900;
}

.brand-copy {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.text-link {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 13px 26px;
  border-radius: 6px;
  border: 2px solid transparent;
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 24px rgba(8, 27, 74, 0.16);
}

.button-small {
  min-height: 40px;
  padding: 8px 16px;
  font-size: 0.88rem;
}

.button-line {
  color: #ffffff;
  background: #06c755;
}

.button-form {
  color: var(--navy);
  background: linear-gradient(135deg, #fff6c7, var(--gold));
  border-color: rgba(6, 27, 74, 0.1);
}

.hero {
  background:
    linear-gradient(180deg, rgba(5, 32, 88, 0.14), rgba(213, 232, 248, 1) 88%),
    radial-gradient(circle at 80% 20%, rgba(18, 169, 216, 0.22), transparent 42%),
    #d5e8f8;
}

.hero-media {
  width: min(100%, 1600px);
  margin: 0 auto;
  background: #02153d;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-copy {
  width: min(1080px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(34px, 6vw, 72px) 0 clamp(40px, 7vw, 92px);
  text-align: left;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 0.92rem;
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 22px;
  max-width: 820px;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2rem, 5vw, 3.65rem);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: 0;
}

.lead {
  max-width: 780px;
  margin: 0;
  color: #2d415f;
  font-size: clamp(1.04rem, 2vw, 1.28rem);
  font-weight: 700;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 14px;
  margin-top: 28px;
}

.section {
  padding: clamp(48px, 6vw, 78px) 0;
}

.section:nth-of-type(even) {
  background: transparent;
}

.compact-section {
  padding-top: clamp(42px, 5vw, 64px);
  padding-bottom: clamp(42px, 5vw, 64px);
}

.section.intro {
  background: #d7e9f8;
}

.section.problem {
  background: #c3dcf1;
}

.section.course {
  background: #edf6ff;
}

.section-inner {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.narrow {
  width: min(820px, calc(100% - 36px));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.72fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.support-image {
  margin: 0;
}

.small-image {
  max-width: 430px;
  justify-self: end;
}

.small-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(6, 27, 74, 0.14);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section-heading {
  max-width: 820px;
  margin: 0 0 34px;
  text-align: left;
}

h2 {
  margin: 0 0 22px;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  font-size: clamp(1.52rem, 3.1vw, 2.38rem);
  font-weight: 900;
  line-height: 1.5;
  letter-spacing: 0;
}

h3 {
  margin: 8px 0 8px;
  font-size: 1.1rem;
  line-height: 1.55;
}

.section-heading > p,
.section-inner > p,
.basic-split p {
  color: var(--muted);
  font-weight: 700;
}

.prose {
  color: #263b59;
  font-size: clamp(1rem, 1.65vw, 1.12rem);
  font-weight: 500;
}

.prose p {
  margin: 0 0 22px;
}

.prose p:last-child {
  margin-bottom: 0;
}

.center {
  margin-top: 36px;
  text-align: left;
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.roadmap-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.roadmap article,
.support-list div,
.outcomes p,
.price-panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(8, 27, 74, 0.07);
}

.roadmap article {
  min-height: 206px;
  padding: 24px;
}

.roadmap span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 10px;
  color: var(--navy);
  background: var(--gold-soft);
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 900;
}

.roadmap p,
.support-list span {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.75;
}

.section.support {
  background: #cfe5f7;
  padding-top: clamp(68px, 7vw, 96px);
  padding-bottom: clamp(60px, 7vw, 92px);
}

.support-layout .section-heading {
  max-width: 720px;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.support-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.support-list div {
  display: grid;
  gap: 5px;
  min-height: 132px;
  padding: 22px;
}

.support-list strong {
  color: var(--navy);
  font-size: 1.05rem;
}

.section.future {
  color: #ffffff;
  background:
    radial-gradient(circle at 72% 0%, rgba(22, 174, 222, 0.34), transparent 42%),
    linear-gradient(135deg, #03143d 0%, #072a6b 48%, #064f93 100%);
}

.future .section-kicker,
.future h2,
.future .prose {
  color: #ffffff;
}

.outcomes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.outcomes p {
  min-height: 92px;
  margin: 0;
  padding: 20px;
  color: #102044;
  background: rgba(255, 255, 255, 0.94);
  font-weight: 900;
  line-height: 1.65;
}

.section.price {
  background:
    linear-gradient(180deg, #dceefa, #c7def3);
}

.price-panel {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 48px);
  text-align: center;
  box-shadow: var(--shadow);
}

.price-lead {
  margin: -4px 0 28px;
  color: var(--blue);
  font-size: 1.25rem;
  font-weight: 900;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-weight: 900;
}

.price-row span {
  color: var(--muted);
}

.price-row del {
  color: #111827;
  text-decoration-color: var(--blue);
  text-decoration-thickness: 3px;
  font-size: 1.6rem;
}

.main-price strong {
  color: #d2232a;
  font-size: clamp(2.1rem, 6vw, 3.8rem);
  line-height: 1.1;
}

.note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.75;
  text-align: left;
}

.section.final-cta {
  color: #ffffff;
  background:
    radial-gradient(circle at 16% 8%, rgba(22, 174, 222, 0.32), transparent 42%),
    linear-gradient(135deg, #020d2d 0%, #061b4a 54%, #083f7d 100%);
  text-align: left;
}

.final-cta h2,
.final-cta .prose {
  color: #ffffff;
}

.center-buttons {
  justify-content: flex-start;
}

.section.other-course {
  background: #c9e0f4;
}

.section.reassurance {
  background: #d9ebf8;
}

.section.reason {
  background: #c1d9ee;
}

.section.upper-course {
  background: #d3e6f6;
}

.basic-split {
  align-items: center;
}

.strong-link {
  display: inline-flex;
  margin-top: 12px;
}

.basic-image-link {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.basic-image-link img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.upper-course {
  padding-top: 54px;
  padding-bottom: 70px;
  text-align: left;
}

.upper-course p {
  color: var(--muted);
  font-weight: 700;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 4vw, 48px);
  color: #cbd8f0;
  background: #051533;
  font-size: 0.9rem;
}

.footer p {
  margin: 0;
}

.footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer a {
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
  }

  .header-actions .text-link {
    display: none;
  }

  .split,
  .roadmap,
  .outcomes {
    grid-template-columns: 1fr;
  }

  .roadmap-four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .roadmap article,
  .support-list div,
  .outcomes p {
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 14px;
  }

  .brand {
    gap: 6px;
  }

  .brand-mark {
    font-size: 1rem;
  }

  .brand-copy {
    display: none;
  }

  .button {
    width: 100%;
    min-height: 52px;
    padding-inline: 18px;
  }

  .button-small {
    width: auto;
    min-height: 38px;
    padding-inline: 12px;
  }

  .hero-media img {
    aspect-ratio: 16 / 10;
    object-position: center top;
  }

  .hero-copy,
  .section-inner,
  .narrow {
    width: min(100% - 28px, 1120px);
  }

  h1 {
    font-size: clamp(1.9rem, 8vw, 2.55rem);
  }

  h2 {
    font-size: clamp(1.42rem, 6.2vw, 2rem);
  }

  .price-row {
    display: grid;
    gap: 4px;
    text-align: left;
  }

  .roadmap-four {
    grid-template-columns: 1fr;
  }

  .main-price strong {
    font-size: clamp(2.45rem, 14vw, 3.3rem);
  }

  .footer {
    display: grid;
  }
}