:root {
  --color-navy: #00307a;
  --color-navy-dark: #001f54;
  --color-yellow: #ffd52e;
  --color-text: #101828;
  --color-muted: #667085;
  --color-line: #d7deea;
  --color-bg: #ffffff;
  --color-soft-bg: #f7f9fc;

  --content-width: 1125px;
  --side-space: clamp(20px, 5.5vw, 72px);
  --section-space: clamp(64px, 11vw, 128px);

  --font-sans:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Noto Sans JP",
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, "sans-serif";
  font-size: clamp(16px, 4.2vw, 20px);
  line-height: 1.8;
  letter-spacing: 0.03em;
 margin-bottom:80px;
}

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

img {
  height: auto;
}

a {
  color: inherit;
}

.inner {
  width: min(100%, var(--content-width));
  margin-inline: auto;
  padding-inline: var(--side-space);
}

.narrow {
  max-width: 880px;
}

/* Header */

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
}

.site-logo {
  margin: 0;
  color: var(--color-navy);
  font-size: clamp(24px, 6vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

/* Hero */

.hero {
  padding-top: 30px;
}

.hero-inner {
  display: grid;
  gap: 40px;
}

.hero-label {
  margin: 0 0 12px;
  color: var(--color-navy-dark);
  font-size: clamp(20px, 6vw, 30px);
  font-weight: 800;
  line-height: 1.4;
	text-align: center;
}

h1 {
  margin: 0;
  color: var(--color-navy);
  font-size: clamp(50px, 14vw, 104px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.02em;
	text-align: center;
}

.start-text {
  margin: 24px 0 0;
  color: var(--color-navy);
  font-size: clamp(22px, 5.6vw, 38px);
  font-weight: 800;
  line-height: 1.45;
	text-align: center;
}

.hero-text {
  margin: 24px 0 0;
  font-size: clamp(16px, 4.3vw, 24px);
  font-weight: 600;
  line-height: 1.5;
}

.hero-image {
  margin: 0 calc(var(--side-space) * -1);
}

.hero-image img {
  width: 100%;
  max-height: 720px;
  object-fit: cover;
  object-position: center;
}

/* Common Section */

.section {
  padding-block:30px;
}

.section + .section {
 
}

h2 {
  margin: 0 0 40px;
  color: var(--color-navy);
  font-size: clamp(24px, 6vw, 40px);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
}

h3 {
  margin: 0;
  color: var(--color-navy-dark);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 800;
  line-height: 1.2;
}

p {
  margin: 0;
}

/* Feature */

.feature-list {
  display: grid;
  gap: 0;
}

.feature-item {
  padding-block: 28px;
  border-bottom: 1px solid var(--color-line);
}

.feature-item:first-child {
  border-top: 1px solid var(--color-line);
}

.feature-item p {
  margin-top: 8px;
  font-weight: 600;
}

/* About */

.about p {
  font-weight: 600;
  line-height: 1.5;
	
}

/* Steps */

.step-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
	
	
}

.step-list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding-block: 28px;
  border-bottom: 1px solid var(--color-line);
	
}

.step-number {
  color: var(--color-navy);
  font-size: clamp(28px, 7vw, 48px);
  font-weight: 900;
  line-height: 1;

	
}

.step-list p {
  margin-top: 4px;
  font-weight: 600;
	line-height: 1.5;

	
}

.note {
  margin-top: 28px;
  color: var(--color-muted);
  font-size: clamp(14px, 3.8vw, 20px);
  font-weight: 600;
  text-align: center;
	
	
}

/* Info Table */

.info-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-line);
  font-size: clamp(13px, 3vw, 20px);
}

.info-table th,
.info-table td {
  padding: clamp(16px, 4.4vw, 28px);
  border: 1px solid var(--color-line);
  vertical-align: top;
  text-align: left;
}

.info-table th {
  width: 32%;
  color: var(--color-navy);
  font-weight: 800;
  background: var(--color-soft-bg);
  white-space: nowrap;
}

.info-table td {
  font-weight: 700;
}

.info-table span {
  color: var(--color-muted);
  font-weight: 600;
}

.info-table ul {
  margin: 0 0 12px;
  padding-left: 1.2em;
}

.info-table strong {
  display: block;
  color: var(--color-navy);

}

/* Access */

.map {
  width: 100%;
  height: clamp(420px, 112vw, 760px);
  overflow: hidden;
  background: #f2f4f7;
}

.map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.access-text {
  margin-top: 24px;
}

.access-text h3 {
  color: var(--color-text);
}

.access-text p {
  margin-top: 4px;
  color: var(--color-muted);
  font-weight: 600;
}

/* Instructor */

.instructor-inner {
  display: grid;
  gap: 32px;
}

.instructor-image {
  margin: 0;
  width: min(100%, 420px);
}

.instructor-image img {
  width: 100%;
}

.instructor-copy {
  align-self: center;
}

.section-label {
  margin-bottom: 8px;
  color: var(--color-navy);
  font-size: clamp(18px, 4.4vw, 24px);
  font-weight: 800;
}

.instructor-copy h2 {
  margin-bottom: 8px;
  text-align: left;
}

.rank {
  color: var(--color-navy-dark);
  font-weight: 800;
}

.instructor-copy ul {
  margin: 28px 0 0;
  padding-left: 1.2em;
  font-weight: 600;
}

/* Footer */

.site-footer {
  padding: 48px var(--side-space) 48px;
  color: #fff;
  background: var(--color-navy);
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: clamp(24px, 6vw, 40px);
  font-weight: 800;
}

/* Fixed CTA */

.fixed-cta {
  position: fixed;
  z-index: 100;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid var(--color-line);
  backdrop-filter: blur(12px);
}

.fixed-button {
  min-height: 60px;
  display: grid;
  place-items: center;
  padding: 12px 14px;
  border: 2px solid var(--color-navy);
  border-radius: 999px;
  font-size: clamp(12px, 3vw, 18px);
  font-weight: 800;
  text-decoration: none;
  line-height: 1.3;
  text-align: center;
}

.fixed-button.primary {
  color: var(--color-navy-dark);
  background: var(--color-yellow);
  border-color: var(--color-yellow);
}

.fixed-button.secondary {
  color: var(--color-navy);
  background: #fff;
}

/* Small phone adjustment */

@media (max-width: 374px) {
  :root {
    --side-space: 18px;
  }

  .step-list li {
    grid-template-columns: 56px 1fr;
    gap: 16px;
  }

  .fixed-cta {
    gap: 8px;
    padding: 10px;
  }

  .fixed-button {
    min-height: 56px;
    font-size: 13px;
  }
}

/* Tablet */

@media (min-width: 600px) {
  .feature-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .feature-item,
  .feature-item:first-child {
    border-top: 0;
    border-bottom: 0;
  }

  .feature-item + .feature-item {
    border-left: 1px solid var(--color-line);
    padding-left: 32px;
  }

  .step-list li {
    grid-template-columns: 88px 1fr;
  }

  .instructor-inner {
    grid-template-columns: 300px 1fr;
    align-items: center;
  }
}

/* Desktop */

@media (min-width: 960px) {
  body {
    font-size: 18px;
    padding-bottom: 120px;
  }

  .header-inner {
    min-height: 88px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 56px;
  }

  .hero-image {
    margin: 0;
  }

  .hero-image img {
    height: 560px;
    object-fit: cover;
  }

  .feature-list {
    gap: 48px;
  }

  .feature-item + .feature-item {
    padding-left: 48px;
  }

  .step-list li {
    grid-template-columns: 104px 1fr;
  }

  .info-table th {
    width: 240px;
  }

  .map {
    height: 620px;
  }

  .instructor-inner {
    grid-template-columns: 360px 1fr;
    gap: 56px;
  }

  .fixed-cta {
    width: min(100% - 48px, 720px);
    left: 50%;
    right: auto;
    bottom: 24px;
    transform: translateX(-50%);
    border: 1px solid var(--color-line);
    border-radius: 999px;
  }
}

/* Wide desktop */

@media (min-width: 1280px) {
  .hero-image img {
    height: 640px;
  }

  .map {
    height: 680px;
  }
}