:root {
  --zenn-50: #f2f9fd;
  --zenn-100: #e8f4fb;
  --zenn-200: #dceef8;
  --zenn-300: #cae4f2;
  --zenn-500: #3ea8ff;
  --zenn-600: #0f83fd;
  --zenn-canvas: #e8f3fa;
  --zenn-border: #c2dce8;
  --zenn-muted: #65717b;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --white: #ffffff;
  --shadow-zenn-card: 0 0 0 1px rgba(150, 163, 179, 0.1), 0 8px 28px -4px rgba(150, 163, 179, 0.3);
  --shadow-zenn-card-hover: 0 0 0 1px rgba(150, 163, 179, 0.12), 0 12px 36px -4px rgba(150, 163, 179, 0.35);
  --radius-card: 14px;
  --radius-lp: 24px;
  --radius-pill: 999px;
  --container: 1100px;
  /* セクション帯：上白 → 中央に淡い水色 → 下白 */
  --section-stripe: linear-gradient(
    180deg,
    var(--white) 0%,
    var(--zenn-50) 38%,
    var(--zenn-100) 50%,
    var(--zenn-50) 62%,
    var(--white) 100%
  );
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* 固定ヘッダー下にアンカー先が隠れないようにする */
main[id],
section[id],
#instructor,
#price {
  scroll-margin-top: 80px;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--slate-800);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding-left: 1.15rem;
}

li + li {
  margin-top: 8px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 0;
  background: rgba(252, 253, 255, 0.94);
  border-bottom: 1px solid rgba(190, 218, 232, 0.75);
  box-shadow: 0 1px 12px rgba(62, 130, 170, 0.06);
  backdrop-filter: blur(16px);
}

.site-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  min-height: 64px;
  padding: 10px clamp(20px, 4vw, 40px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-text-block {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
}

.brand-title-line {
  display: block;
  font-size: clamp(14px, 2.8vw, 18px);
  font-weight: 800;
  line-height: 1.3;
}

.brand-title-accent {
  color: var(--zenn-600);
}

.brand-title-rest {
  color: var(--slate-900);
}

.brand-tagline {
  display: block;
  color: var(--zenn-muted);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--zenn-500);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.4;
  box-shadow: 0 14px 32px -14px rgba(62, 168, 255, 0.9);
  transition: background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.button:hover {
  background: var(--zenn-600);
  box-shadow: 0 18px 40px -16px rgba(15, 131, 253, 0.9);
  transform: translateY(-1px);
}

.button:focus-visible {
  outline: 3px solid rgba(62, 168, 255, 0.35);
  outline-offset: 3px;
}

/* ヘッダーCTA：本文のプライマリボタンと同じトーン（サイズのみ調整） */
.button.header-cta {
  flex-shrink: 0;
  min-height: 44px;
  padding: 0 24px;
  font-size: 14px;
}

.button-small {
  min-height: 40px;
  padding: 0 16px;
  font-size: 13px;
}

.button-secondary {
  background: #fff;
  color: var(--slate-700);
  border-color: var(--zenn-border);
  box-shadow: var(--shadow-zenn-card);
}

.button-secondary:hover {
  background: rgba(225, 241, 250, 0.85);
  color: var(--zenn-600);
  border-color: rgba(62, 168, 255, 0.35);
  box-shadow: var(--shadow-zenn-card-hover);
}

.button-secondary-light {
  color: var(--slate-700);
  border-color: var(--zenn-border);
}

.section {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
  padding: 72px 0;
}

/* セクションごと：白 → 淡い水色 → 白（ビューポート全幅の帯） */
main > section {
  position: relative;
  isolation: isolate;
}

main > section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 100vw;
  transform: translateX(-50%);
  z-index: -1;
  pointer-events: none;
  background: var(--section-stripe);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  align-items: center;
  gap: 48px;
  min-height: min(720px, calc(100vh - 64px));
  padding-top: 58px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--zenn-500);
  font-family: Inter, "Noto Sans JP", system-ui, sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  color: var(--slate-900);
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

h1 .hero-title-tag {
  margin-right: 0.18em;
  color: var(--zenn-600);
}

h1 .hero-title-main {
  display: inline;
}

.hero-subhead {
  margin-bottom: 16px;
  color: var(--slate-700);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.02em;
}

h2 {
  margin-bottom: 16px;
  color: var(--slate-900);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 8px;
  color: var(--slate-900);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
}

.lead {
  margin-bottom: 28px;
  color: var(--slate-700);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badges span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 13px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, #ffffff 0%, var(--zenn-50) 100%);
  color: var(--slate-700);
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 5px 18px -12px rgba(100, 116, 139, 0.55);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-meta li {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: linear-gradient(165deg, #ffffff 0%, var(--zenn-50) 100%);
}

.hero-meta span {
  display: block;
  margin-bottom: 4px;
  color: var(--zenn-500);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.hero-meta strong {
  display: block;
  color: var(--slate-900);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.5;
}

.hero-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--zenn-border);
  border-radius: 28px;
  background:
    radial-gradient(circle at 16% 18%, rgba(160, 210, 240, 0.35), transparent 15rem),
    radial-gradient(circle at 82% 78%, rgba(190, 226, 248, 0.28), transparent 16rem),
    linear-gradient(145deg, #ffffff 0%, var(--zenn-100) 100%);
  box-shadow: var(--shadow-zenn-card);
}

.hero-video,
.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: inherit;
  pointer-events: none;
}

.image-placeholder {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  border: 1.5px dashed rgba(62, 168, 255, 0.42);
  border-radius: var(--radius-lp);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(240, 247, 255, 0.9)),
    repeating-linear-gradient(135deg, rgba(62, 168, 255, 0.08) 0 8px, transparent 8px 16px);
  color: var(--zenn-muted);
  text-align: center;
}

.image-placeholder strong {
  max-width: 82%;
  color: var(--slate-900);
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 900;
  line-height: 1.35;
}

.image-placeholder small {
  color: var(--zenn-muted);
  font-size: 12px;
  font-weight: 800;
}

.image-placeholder span {
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.image-placeholder-hero {
  position: absolute;
  inset: 38px;
  min-height: 440px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.placeholder-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.visual-card {
  position: absolute;
  z-index: 2;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-zenn-card);
  backdrop-filter: blur(12px);
}

.visual-card-main {
  left: 50%;
  top: 50%;
  display: flex;
  width: min(84%, 430px);
  min-height: 236px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  transform: translate(-50%, -50%);
}

.visual-card-main strong {
  margin: 12px 0 10px;
  color: var(--slate-900);
  font-size: clamp(28px, 3.2vw, 36px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.04em;
}

.visual-card-main span:last-child,
.visual-card-small span,
.metric-label {
  color: var(--zenn-muted);
  font-size: 13px;
  font-weight: 800;
}

.visual-card-small {
  right: 32px;
  bottom: 42px;
  display: grid;
  gap: 2px;
  padding: 18px 20px;
}

.visual-card-small strong {
  color: var(--zenn-600);
  font-size: 27px;
  line-height: 1.2;
}

.proof-strip {
  width: min(100% - 40px, var(--container));
  margin: -26px auto 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.proof-strip div {
  padding: 20px 24px;
}

.proof-strip div + div {
  border-left: 1px solid #e2e8f0;
}

.proof-strip span {
  display: block;
  margin-bottom: 4px;
  color: var(--zenn-500);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.proof-strip strong {
  color: var(--slate-900);
  font-size: 16px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  color: var(--zenn-muted);
  font-size: 16px;
}

.problem-figure {
  margin: 0 auto 36px;
  max-width: min(100%, 780px);
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
  overflow: hidden;
}

.problem-figure img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.weapons-figure {
  margin: 0 auto 36px;
  max-width: min(100%, 820px);
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
  overflow: hidden;
}

.weapons-figure img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.problem-section,
.level-section,
.overview-section,
.curriculum-section,
.program-details-section {
  width: 100%;
  max-width: none;
  padding-right: max(20px, calc((100vw - var(--container)) / 2));
  padding-left: max(20px, calc((100vw - var(--container)) / 2));
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.card,
.concept-grid article,
.mini-card,
.level-track article,
.step-card,
.outcomes-grid article,
.instructor-card,
.instructor-section blockquote,
.overview-grid article,
.plan-card,
details {
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.card,
.outcomes-grid article,
.plan-card,
.level-track article,
.step-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card {
  min-height: 220px;
  padding: 22px;
}

.card.card--text-only {
  min-height: 0;
}

.card.card--text-only .card-number {
  margin-bottom: 14px;
}

.image-placeholder-card {
  width: 100%;
  min-height: 132px;
  margin-bottom: 18px;
  border-radius: 12px;
}

.card:hover,
.outcomes-grid article:hover,
.plan-card:hover,
.level-track article:hover,
.step-card:hover {
  border-color: rgba(62, 168, 255, 0.35);
  box-shadow: var(--shadow-zenn-card-hover);
  transform: translateY(-2px);
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  border-radius: 50%;
  background: var(--zenn-500);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.card p,
.concept-grid p,
.mini-card p,
.step-card p,
.outcomes-grid li,
.plan-card p,
.faq-list p {
  color: var(--zenn-muted);
  font-size: 15px;
}

.summary-line {
  max-width: 820px;
  margin: 34px auto 0;
  padding: 20px 24px;
  border: 1px solid rgba(62, 168, 255, 0.22);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, var(--zenn-100) 100%);
  color: var(--slate-800);
  font-size: 16px;
  font-weight: 800;
  text-align: center;
}

.dark-showcase {
  width: min(100% - 40px, var(--container));
  max-width: var(--container);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 22px;
  padding: 0;
  background: transparent;
}

.dark-content,
.concept-grid article {
  padding: 28px;
}

.dark-content {
  border: 1px solid rgba(62, 168, 255, 0.2);
  border-radius: var(--radius-lp);
  background:
    radial-gradient(circle at 92% 12%, rgba(170, 215, 242, 0.35), transparent 16rem),
    linear-gradient(165deg, #ffffff 0%, var(--zenn-50) 100%);
  box-shadow: var(--shadow-zenn-card);
}

.dark-showcase h2,
.dark-showcase h3,
.dark-showcase .eyebrow,
.final-cta h2,
.final-cta .eyebrow {
  color: var(--slate-900);
}

.dark-showcase p,
.final-cta p {
  color: var(--slate-700);
}

.concept-grid {
  display: grid;
  gap: 16px;
}

.concept-grid span,
.step-kicker,
.case-label {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.split-section {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: stretch;
  gap: 22px;
}

.split-visual {
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  padding: 34px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background:
    radial-gradient(circle at 12% 16%, rgba(170, 215, 242, 0.32), transparent 15rem),
    linear-gradient(145deg, #ffffff, var(--zenn-100));
  box-shadow: var(--shadow-zenn-card);
}

.image-placeholder-demo {
  min-height: 230px;
  border-radius: 18px;
}

.split-visual h2,
.split-visual p {
  color: var(--slate-900);
}

.split-visual p {
  color: var(--slate-700);
}

.split-copy {
  display: grid;
  gap: 16px;
}

.mini-card {
  padding: 24px;
}

.mini-card-blue,
.plan-card-featured {
  background: var(--zenn-50);
  border-color: rgba(62, 168, 255, 0.32);
}

.comparison-section {
  padding-top: 32px;
}

.comparison-table {
  overflow-x: auto;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.comparison-row {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1.4fr;
  min-width: 720px;
}

.comparison-row > div {
  padding: 17px 18px;
  border-bottom: 1px solid #e2e8f0;
  color: var(--slate-700);
  font-size: 14px;
}

.comparison-row > div + div {
  border-left: 1px solid #e2e8f0;
}

.comparison-row:last-child > div {
  border-bottom: 0;
}

.comparison-head > div {
  background: rgba(62, 168, 255, 0.08);
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.level-track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.level-track article {
  position: relative;
  min-height: 238px;
  padding: 26px;
  overflow: hidden;
}

.level-track article::after {
  content: "";
  position: absolute;
  right: -54px;
  bottom: -54px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(62, 168, 255, 0.1);
}

.level-track span {
  color: var(--zenn-500);
  font-size: 30px;
  font-weight: 900;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.step-card {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  justify-content: space-between;
  padding: 26px;
}

.image-placeholder-step {
  min-height: 150px;
  margin-bottom: 18px;
  border-radius: 12px;
}

.step-figure {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: 18px;
  border: 1px solid var(--zenn-border);
  border-radius: 12px;
  background: #fff;
  object-fit: contain;
  object-position: center;
}

.step-card strong {
  color: var(--zenn-600);
  font-size: 14px;
}

.layer-points {
  margin: 0 0 4px;
  padding-left: 1.2rem;
  color: var(--zenn-muted);
  font-size: 15px;
  line-height: 1.75;
}

.layer-points li + li {
  margin-top: 10px;
}

.step-card .layer-points {
  flex: 1;
  margin-top: 4px;
}

.curriculum-steps {
  display: flex;
  max-width: var(--container);
  flex-direction: column;
  gap: 40px;
  margin: 16px auto 0;
}

.curriculum-step-how {
  min-width: 0;
}

.curriculum-dual-stack--in-step {
  margin-top: 0;
}

.curriculum-dual-copy .curriculum-step-title {
  margin: 0 0 8px;
  color: var(--slate-800);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.curriculum-dual-copy .curriculum-step-blocks {
  margin-top: 10px;
}

.curriculum-step-blocks > .curriculum-step-block:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.curriculum-step-blocks > .curriculum-step-block:not(:first-of-type) {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(226, 232, 240, 0.95);
}

.curriculum-dual-copy .curriculum-step-block .curriculum-syllabus {
  margin-top: 10px;
}

.curriculum-dual-copy .curriculum-step-block .layer-points {
  margin-top: 8px;
}

.curriculum-dual-copy .curriculum-syllabus {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.curriculum-dual-copy .curriculum-syllabus li + li {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(226, 232, 240, 0.9);
}

.curriculum-dual-copy .curriculum-syllabus strong {
  display: block;
  margin-bottom: 6px;
  color: var(--slate-800);
  font-size: 16px;
  font-weight: 800;
}

.curriculum-dual-copy .curriculum-syllabus p {
  margin: 0;
  color: var(--zenn-muted);
  font-size: 15px;
  line-height: 1.75;
}

.curriculum-dual-copy .curriculum-step-subhead {
  margin: 0 0 10px;
  color: var(--slate-800);
  font-size: clamp(15px, 1.65vw, 18px);
  font-weight: 800;
  line-height: 1.35;
}

.curriculum-dual-stack {
  display: flex;
  max-width: var(--container);
  flex-direction: column;
  gap: 40px;
  margin: 16px auto 0;
}

.curriculum-dual-row {
  display: grid;
  align-items: stretch;
  padding: 28px 28px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
  gap: 32px 48px;
  grid-template-columns: minmax(0, 1.12fr) minmax(260px, 0.78fr);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.curriculum-dual-row--visual-lg {
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.22fr);
}

.curriculum-dual-row:hover {
  border-color: rgba(62, 168, 255, 0.35);
  box-shadow: var(--shadow-zenn-card-hover);
  transform: translateY(-2px);
}

.curriculum-dual-copy {
  min-width: 0;
  padding: 4px 0;
}

.curriculum-dual-copy h3 {
  margin-bottom: 12px;
}

.curriculum-dual-row .step-kicker {
  margin-bottom: 10px;
}

.curriculum-dual-row .layer-points {
  margin-bottom: 0;
}

.curriculum-dual-visual {
  display: flex;
  min-width: 0;
  margin: 0;
  flex-direction: column;
  gap: 16px;
  /* 画像の実寸のアスペクト比で高さが決まるよう、行全体の高さに合わせて引き伸ばさない */
  align-self: start;
}

.curriculum-dual-placeholder.image-placeholder-step {
  flex: 1;
  width: 100%;
  min-height: 220px;
  margin-bottom: 0;
  align-self: stretch;
}

.curriculum-dual-image {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--zenn-border);
  border-radius: 12px;
  background: #fff;
  object-fit: contain;
  object-position: center top;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.outcomes-grid article {
  padding: 26px;
}

.outcomes-grid h3::before {
  content: "";
  display: block;
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  border-radius: 12px;
  background: rgba(62, 168, 255, 0.15);
  box-shadow: inset 0 0 0 1px rgba(214, 227, 237, 0.8);
}

.target-section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 36px;
  align-items: center;
}

.target-copy p:not(.eyebrow) {
  color: var(--zenn-muted);
  font-size: 16px;
}

.target-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.instructor-section {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  gap: 18px;
}

.instructor-card,
.instructor-section blockquote {
  margin: 0;
  padding: 28px;
}

.instructor-card {
  display: grid;
  grid-template-columns: 116px 1fr;
  gap: 24px;
  align-items: center;
}

.portrait {
  display: grid;
  width: 116px;
  height: 116px;
  place-items: center;
  border: 1px solid rgba(62, 168, 255, 0.32);
  border-radius: 28px;
  background: var(--zenn-50);
  color: var(--zenn-600);
  font-size: 32px;
  font-weight: 900;
}

.portrait span {
  color: var(--zenn-600);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.instructor-section blockquote {
  display: flex;
  align-items: center;
  background: rgba(240, 247, 255, 0.95);
  color: var(--slate-800);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.85;
}

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

.overview-grid article {
  padding: 20px;
}

.overview-grid span,
.plan-card span {
  display: block;
  margin-bottom: 7px;
  color: var(--zenn-muted);
  font-size: 13px;
  font-weight: 800;
}

.overview-grid strong {
  color: var(--slate-900);
  font-size: 15px;
}

.plan-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.plan-card {
  padding: 26px;
}

.faq-section {
  max-width: 880px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  overflow: hidden;
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  color: var(--slate-900);
  font-weight: 800;
  list-style: none;
}

summary:focus-visible {
  outline: 3px solid rgba(62, 168, 255, 0.35);
  outline-offset: -3px;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  float: right;
  color: var(--zenn-500);
  font-size: 22px;
  line-height: 1;
}

details[open] summary::after {
  content: "-";
}

details p {
  margin: -4px 22px 22px;
}

.final-cta {
  width: min(100% - 40px, var(--container));
  margin-bottom: 64px;
  padding: 72px clamp(24px, 5vw, 58px);
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: center;
}

.final-cta .hero-actions {
  justify-content: center;
  margin-bottom: 0;
}

.final-cta p {
  max-width: 620px;
  margin-right: auto;
  margin-bottom: 26px;
  margin-left: auto;
  font-size: 16px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 4vw, 40px);
  border-top: 1px solid var(--zenn-border);
  background: linear-gradient(180deg, #fbfdff 0%, var(--zenn-100) 100%);
  color: var(--zenn-muted);
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

.reasons-section {
  width: min(100% - 40px, var(--container));
}

.reason-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.reason-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.reason-card:hover {
  border-color: rgba(62, 168, 255, 0.35);
  box-shadow: var(--shadow-zenn-card-hover);
  transform: translateY(-2px);
}

.image-placeholder-reason {
  width: 100%;
  min-height: 168px;
  margin-bottom: 18px;
  border-radius: 14px;
}

.reason-index {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.reason-card h3 {
  font-size: 19px;
  line-height: 1.45;
}

.reason-card p {
  flex: 1;
  margin-bottom: 16px;
  color: var(--zenn-muted);
  font-size: 15px;
}

.reason-card strong {
  color: var(--zenn-600);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.demo-section {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 32px;
}

.demo-copy h2 {
  margin-bottom: 18px;
}

.demo-copy p {
  color: var(--zenn-muted);
  font-size: 16px;
}

.demo-copy .case-note {
  margin-top: 12px;
  color: var(--zenn-600);
  font-size: 13px;
  font-weight: 700;
}

.demo-points {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.demo-points li {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 14px;
  align-items: center;
  margin: 0;
  padding: 14px 18px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: #fff;
  color: var(--slate-700);
  font-size: 15px;
}

.demo-points strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  border-radius: var(--radius-pill);
  background: rgba(62, 168, 255, 0.12);
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.demo-visual {
  position: relative;
  min-height: 460px;
  padding: 24px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background:
    radial-gradient(circle at 14% 14%, rgba(170, 215, 242, 0.35), transparent 16rem),
    linear-gradient(145deg, #ffffff, var(--zenn-100));
  box-shadow: var(--shadow-zenn-card);
}

.demo-image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--zenn-border);
  border-radius: 18px;
  background: #fff;
}

.demo-floating {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 2px;
  padding: 16px 20px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.demo-floating span {
  color: var(--zenn-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.demo-floating strong {
  color: var(--zenn-600);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.2;
}

.demo-floating small {
  color: var(--slate-700);
  font-size: 12px;
  font-weight: 800;
}

.weapons-section {
  width: min(100% - 40px, var(--container));
}

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

.role-benefits-section {
  padding-top: 24px;
}

.role-benefit-card {
  padding: 22px;
  border: 1px solid rgba(62, 168, 255, 0.22);
  border-radius: var(--radius-card);
  background: linear-gradient(165deg, #ffffff 0%, var(--zenn-100) 100%);
}

.role-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  margin-bottom: 16px;
  border-radius: 12px;
  object-fit: cover;
  object-position: center 20%;
  background: #fff;
}

.role-label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  margin-bottom: 10px;
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.role-benefit-card h3 {
  font-size: 18px;
  line-height: 1.45;
}

.role-benefit-card p {
  color: var(--slate-700);
  font-size: 14px;
}

.weapon-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.weapon-card {
  padding: 24px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.weapon-card:hover {
  border-color: rgba(62, 168, 255, 0.35);
  box-shadow: var(--shadow-zenn-card-hover);
  transform: translateY(-2px);
}

.image-placeholder-weapon {
  width: 100%;
  min-height: 132px;
  margin-bottom: 18px;
  border-radius: 14px;
}

.weapon-card h3 {
  font-size: 17px;
  line-height: 1.5;
}

.weapon-card h3 small {
  display: block;
  margin-top: 4px;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.weapon-card p {
  color: var(--zenn-muted);
  font-size: 15px;
}

.weapon-card p + p {
  margin-top: 12px;
}

.spinout-section {
  width: min(100% - 40px, var(--container));
}

.spinout-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.spinout-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  margin: 0;
  padding: 22px 24px;
  border: 1px solid rgba(62, 168, 255, 0.2);
  border-radius: var(--radius-card);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.92) 0%, var(--zenn-100) 100%);
  color: var(--slate-800);
  font-size: 15px;
  line-height: 1.7;
}

.spinout-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--zenn-500);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.policy-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
}

.policy-copy p:not(.eyebrow) {
  color: var(--zenn-muted);
  font-size: 16px;
}

.policy-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.policy-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
  margin: 0;
  padding: 24px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.policy-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(62, 168, 255, 0.14);
  color: var(--zenn-600);
  font-size: 13px;
  font-weight: 900;
}

.policy-list h3 {
  margin-bottom: 6px;
  font-size: 17px;
}

.policy-list p {
  color: var(--zenn-muted);
  font-size: 15px;
}

.commit-line {
  max-width: 720px;
  margin: 28px auto 0;
  padding: 22px 26px;
  border: 1px solid rgba(62, 168, 255, 0.22);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, #ffffff 0%, var(--zenn-100) 100%);
  color: var(--slate-800);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.85;
  text-align: center;
}

.instructor-role {
  margin-bottom: 14px;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.instructor-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.instructor-stats li {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, #ffffff 0%, var(--zenn-50) 100%);
  text-align: center;
}

.instructor-stats strong {
  display: block;
  color: var(--zenn-600);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.2;
}

.instructor-stats span {
  display: block;
  margin-top: 2px;
  color: var(--zenn-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.button-large {
  min-height: 56px;
  padding: 0 32px;
  font-size: 16px;
}

/* ヒーロー主CTA：サイズのみ強調（背景・文字・シャドウは .button の青系） */
.hero-copy .hero-actions > .button.button-large {
  min-height: 60px;
  padding: 0 38px;
  font-size: 17px;
}

.price-band {
  width: 100%;
  padding: 56px max(20px, calc((100vw - var(--container)) / 2)) 80px;
  background: transparent;
  color: var(--slate-800);
  border-top: none;
}

.price-band-inner {
  width: min(100% - 32px, 880px);
  margin: 0 auto;
  text-align: center;
}

.price-band .eyebrow {
  color: var(--zenn-600);
}

.price-title {
  margin-bottom: 22px;
  color: var(--slate-900);
  font-size: clamp(28px, 4vw, 40px);
}

.price-amount {
  display: grid;
  gap: 4px;
  margin: 0 0 28px;
}

.price-amount strong {
  color: var(--slate-900);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.price-amount span {
  color: var(--zenn-muted);
  font-size: 13px;
  font-weight: 700;
}

.price-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: var(--slate-700);
  font-size: 13px;
  font-weight: 800;
}

.price-meta li {
  margin: 0;
  padding: 6px 12px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.72);
}

/* 受講案内・認定フローなど */
.section-emoji {
  margin-right: 0.2em;
}

.cert-flow-list {
  list-style: none;
  margin: 0 auto 48px;
  padding: 0;
  max-width: 720px;
  counter-reset: cert-step;
}

.cert-flow-item {
  position: relative;
  margin: 0;
  padding: 20px 22px 20px 58px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.cert-flow-item + .cert-flow-item {
  margin-top: 14px;
}

.cert-flow-item::before {
  counter-increment: cert-step;
  content: counter(cert-step, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 22px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--zenn-500);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
}

.cert-flow-title {
  display: block;
  margin-bottom: 8px;
  color: var(--slate-900);
  font-size: 17px;
  font-weight: 800;
}

.cert-flow-desc {
  margin: 0;
  color: var(--zenn-muted);
  font-size: 15px;
  line-height: 1.75;
}

.cert-flow-desc strong {
  color: var(--slate-800);
}

.program-detail-block {
  margin: 0 auto 40px;
  max-width: 800px;
  padding: 28px 28px 8px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-lp);
  background: #fff;
  box-shadow: var(--shadow-zenn-card);
}

.program-detail-block--notice {
  background: linear-gradient(180deg, #fff 0%, var(--zenn-50) 100%);
  border-color: rgba(62, 168, 255, 0.22);
}

.program-detail-heading {
  margin: 0 0 20px;
  color: var(--slate-900);
  font-size: clamp(20px, 2.5vw, 24px);
  font-weight: 900;
  line-height: 1.35;
}

.requirements-sub {
  margin-bottom: 24px;
}

.requirements-subtitle {
  margin: 0 0 12px;
  color: var(--zenn-600);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.requirements-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--slate-700);
  font-size: 15px;
}

.requirements-list li + li {
  margin-top: 14px;
}

.program-detail-text {
  margin: 0;
  color: var(--zenn-muted);
  font-size: 15px;
  line-height: 1.85;
}

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

.notice-points li {
  margin: 0;
  padding: 18px 0;
  border-top: 1px solid var(--zenn-border);
  color: var(--slate-700);
  font-size: 15px;
  line-height: 1.8;
}

.notice-points li:first-child {
  border-top: 0;
  padding-top: 0;
}

.program-price-callout {
  margin: 0 auto 40px;
  max-width: 560px;
  padding: 28px 32px;
  border: 1px solid rgba(62, 168, 255, 0.28);
  border-radius: var(--radius-lp);
  background: linear-gradient(165deg, #fff 0%, var(--zenn-50) 100%);
  text-align: center;
}

.program-price-callout-title {
  margin: 0 0 10px;
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.program-price-callout-amount {
  margin: 0 0 8px;
  color: var(--slate-900);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 900;
  line-height: 1.1;
}

.program-price-callout-amount span {
  font-size: 16px;
  font-weight: 800;
}

.program-price-callout-note {
  margin: 0;
  color: var(--zenn-muted);
  font-size: 14px;
}

.format-summary-table {
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: 20px;
}

.format-summary-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.35fr) 1fr;
  gap: 0;
}

.format-summary-row--head .format-summary-cell {
  background: rgba(62, 168, 255, 0.08);
  color: var(--zenn-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.format-summary-cell {
  padding: 14px 16px;
  border-bottom: 1px solid #e2e8f0;
  color: var(--slate-700);
  font-size: 14px;
  line-height: 1.65;
}

.format-summary-cell:first-child {
  border-right: 1px solid #e2e8f0;
  font-weight: 800;
  color: var(--slate-900);
}

.format-summary-row:last-child .format-summary-cell {
  border-bottom: 0;
}

.program-detail-block--instructor {
  padding-bottom: 28px;
}

.program-details-section .program-detail-block--instructor-lead {
  margin: 0 auto 32px;
}

.program-details-section .program-detail-block--instructor-lead + .section-heading {
  margin-bottom: 28px;
}

.program-instructor-name {
  margin: 0 0 16px;
  color: var(--slate-900);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 900;
}

.program-instructor-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.program-instructor-stats li {
  margin: 0;
  padding: 14px 12px;
  border: 1px solid var(--zenn-border);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, #fff 0%, var(--zenn-50) 100%);
  text-align: center;
}

.program-instructor-stats strong {
  display: block;
  color: var(--zenn-600);
  font-size: 22px;
  font-weight: 900;
}

.program-instructor-stats span {
  display: block;
  margin-top: 4px;
  color: var(--zenn-muted);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.35;
}

@media (max-width: 768px) {
  .format-summary-row {
    grid-template-columns: 1fr;
  }

  .format-summary-cell:first-child {
    border-right: 0;
    padding-bottom: 8px;
    background: var(--zenn-50);
  }

  .format-summary-row--head {
    display: none;
  }

  .format-summary-row .format-summary-cell {
    border-bottom: 1px solid #e2e8f0;
  }

  .format-summary-row:last-child .format-summary-cell:last-child {
    border-bottom: 0;
  }

  .program-instructor-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .hero,
  .dark-showcase,
  .split-section,
  .target-section,
  .instructor-section,
  .demo-section,
  .policy-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 430px;
  }

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

  .level-track,
  .step-grid,
  .outcomes-grid,
  .reason-list,
  .weapon-list,
  .role-benefits {
    grid-template-columns: 1fr;
  }

  .curriculum-dual-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .curriculum-dual-placeholder.image-placeholder-step {
    min-height: 200px;
  }

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

  .hero-meta,
  .instructor-stats,
  .proof-strip {
    grid-template-columns: 1fr;
  }

  .proof-strip div + div {
    border-left: 0;
    border-top: 1px solid #e2e8f0;
  }

  .demo-visual {
    min-height: 360px;
  }
}

@media (max-width: 768px) {
  .site-header-top {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .button.header-cta {
    min-height: 42px;
    padding: 0 18px;
    font-size: 13px;
    margin-left: auto;
  }

  .button-small {
    padding-right: 14px;
    padding-left: 14px;
    font-size: 12px;
  }

  .section {
    width: min(100% - 32px, var(--container));
    padding: 52px 0;
  }

  .hero {
    gap: 30px;
    padding-top: 38px;
  }

  .hero-actions,
  .final-cta .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 350px;
    border-radius: 22px;
  }

  .visual-card-main {
    width: 82%;
    min-height: 204px;
    padding: 22px;
  }


  .visual-card-small {
    right: 16px;
    bottom: 22px;
  }

  .problem-section,
  .level-section,
  .overview-section,
  .curriculum-section,
  .program-details-section {
    padding-right: 16px;
    padding-left: 16px;
  }

  .curriculum-steps {
    gap: 28px;
  }

  .curriculum-dual-row {
    padding: 22px 18px;
  }

  .cards-grid,
  .overview-grid,
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    border-radius: var(--radius-card);
  }

  .instructor-card {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  .lead {
    font-size: 16px;
  }

  .split-visual {
    border-radius: 20px;
  }

  .split-visual {
    min-height: 330px;
    padding: 24px;
  }

  .instructor-section blockquote {
    font-size: 17px;
  }
}