/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white: #ffffff;
  --off-white: #fafaf8;
  --ink: #1a1a1a;
  --ink-soft: #333333;
  --gray: #767676;
  --line: #e5e3df;
  --footer: #3d3631;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Shippori Mincho", "Noto Serif JP", "游明朝", "Yu Mincho", serif;
  background: var(--white);
  color: var(--ink);
  line-height: 2;
  font-size: 15.5px;
  font-weight: 400;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(26,26,26,0.15); }

/* ---------- Header ---------- */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 28px 0;
  transition: all 0.5s ease;
  background: transparent;
}
header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 18px 0;
  border-bottom: 1px solid rgba(229,227,223,0.6);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-family: "Cormorant Garamond", serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--white);
  transition: color 0.5s ease;
}
header.scrolled .logo { color: var(--ink); }

nav ul {
  display: flex;
  list-style: none;
  gap: 34px;
}
nav a {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--white);
  transition: opacity 0.3s ease, color 0.5s ease;
}
header.scrolled nav a { color: var(--ink); }
nav a:hover { opacity: 0.65; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.menu-toggle span {
  width: 22px;
  height: 1px;
  background: var(--white);
  transition: 0.3s;
}
header.scrolled .menu-toggle span { background: var(--ink); }

/* ---------- Page Hero (list page) ---------- */
.page-hero {
  position: relative;
  min-height: 58vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background: #0a0a0a;
  z-index: 1;
}
.page-hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 100px 32px 0;
  color: var(--white);
  animation: fadeUp 1.4s ease 0.3s both;
}
.page-hero-tag {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 300;
  font-size: 14px;
  letter-spacing: 0.5em;
  margin-bottom: 30px;
  opacity: 0.9;
  text-transform: uppercase;
}
.page-hero h1 {
  font-family: "Shippori Mincho", serif;
  font-weight: 400;
  font-size: clamp(26px, 4.4vw, 48px);
  letter-spacing: 0.12em;
  line-height: 1.85;
  margin-bottom: 40px;
}
.page-hero-line {
  width: 50px;
  height: 1px;
  background: rgba(255,255,255,0.7);
  margin: 0 auto 36px;
}
.page-hero-sub {
  font-size: 15px;
  line-height: 2.4;
  letter-spacing: 0.1em;
  opacity: 0.9;
  font-weight: 300;
}

/* ---------- Page Intro ---------- */
.page-intro {
  padding: 110px 0 60px;
  background: var(--white);
  text-align: center;
}
.page-intro-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 32px;
}
.page-intro-eyebrow {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--gray);
  margin-bottom: 22px;
  text-transform: uppercase;
}
.page-intro h2 {
  font-family: "Shippori Mincho", serif;
  font-weight: 400;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.14em;
  margin-bottom: 34px;
  line-height: 1.8;
}
.page-intro p {
  font-size: 16px;
  line-height: 2.45;
  color: var(--ink-soft);
  margin-bottom: 22px;
}
.page-intro p:last-child { margin-bottom: 0; }

/* ---------- Course List ---------- */
.course-list-section {
  background: var(--off-white);
  padding: 60px 0 120px;
}
.course-list-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}
.course-list-intro {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}
.course-list-intro p {
  font-size: 15.5px;
  line-height: 2.55;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.course-list-intro p:last-child { margin-bottom: 0; }

.course-grid {
  display: grid;
  gap: 26px;
}
.course-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
}
.course-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}
.course-card-num {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.35em;
  color: var(--gray);
}
.course-card-tag {
  display: inline-block;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 4px 11px;
}
.course-card h2 {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(21px, 2.5vw, 26px);
  letter-spacing: 0.1em;
  line-height: 1.85;
  margin-bottom: 18px;
  color: var(--ink);
}
.course-card-subtitle {
  font-size: 14.5px;
  color: var(--gray);
  line-height: 2;
  margin-bottom: 26px;
  letter-spacing: 0.06em;
}
.course-card-excerpt {
  font-size: 15px;
  line-height: 2.45;
  color: var(--ink-soft);
  margin-bottom: 26px;
}
.course-card-for {
  background: var(--off-white);
  border: 1px solid var(--line);
  padding: 20px 22px;
  margin-bottom: 32px;
}
.course-card-for-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gray);
  display: block;
  margin-bottom: 12px;
}
.course-card-for ul { list-style: none; }
.course-card-for li {
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink-soft);
  padding-left: 14px;
  position: relative;
  letter-spacing: 0.04em;
}
.course-card-for li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gray);
}
.course-card .btn {
  margin-top: auto;
  align-self: flex-start;
  min-width: 240px;
}

/* ---------- Course Detail Hero ---------- */
.course-hero {
  background: #0a0a0a;
  color: var(--white);
  padding: 130px 32px 80px;
  text-align: center;
}
.course-hero-inner {
  max-width: 820px;
  margin: 0 auto;
}
.course-hero-eyebrow {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.5);
  display: block;
  margin-bottom: 22px;
  text-transform: uppercase;
}
.course-hero-tag {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.32);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  padding: 4px 13px;
  margin-bottom: 28px;
  color: rgba(255,255,255,0.78);
}
.course-hero h1 {
  font-family: "Shippori Mincho", serif;
  font-weight: 400;
  font-size: clamp(26px, 4.2vw, 44px);
  letter-spacing: 0.12em;
  line-height: 1.85;
  margin-bottom: 36px;
}
.course-hero-lead {
  font-size: 15.5px;
  line-height: 2.55;
  color: rgba(255,255,255,0.72);
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* ---------- Course Section ---------- */
.course-section {
  background: var(--white);
  padding: 90px 32px;
}
.course-section.alt {
  background: var(--off-white);
}
.course-section-inner {
  max-width: 800px;
  margin: 0 auto;
}
.course-section-eyebrow {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--gray);
  display: block;
  margin-bottom: 22px;
  text-transform: uppercase;
}
.course-section h2 {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(21px, 2.8vw, 28px);
  letter-spacing: 0.12em;
  line-height: 1.85;
  margin-bottom: 36px;
  color: var(--ink);
}
.course-section p {
  font-size: 16px;
  line-height: 2.55;
  color: var(--ink-soft);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
}
.course-section p:last-child { margin-bottom: 0; }

/* ---------- For Whom List ---------- */
.for-whom-list {
  list-style: none;
  display: grid;
  gap: 12px;
}
.for-whom-list li {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 18px 22px 18px 50px;
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--ink);
  position: relative;
}
.course-section.alt .for-whom-list li {
  background: var(--white);
}
.for-whom-list li::before {
  content: '✓';
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  font-size: 13px;
}

/* ---------- See List ---------- */
.see-list {
  list-style: none;
  display: grid;
  gap: 14px;
}
.see-list li {
  font-size: 15.5px;
  line-height: 2;
  color: var(--ink-soft);
  padding-left: 26px;
  position: relative;
  letter-spacing: 0.05em;
}
.see-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gray);
}

/* ---------- Curriculum ---------- */
.curriculum-list {
  display: flex;
  flex-direction: column;
}
.curriculum-day {
  border-top: 1px solid var(--line);
  padding: 38px 0;
}
.curriculum-day:last-child {
  border-bottom: 1px solid var(--line);
}
.curriculum-day-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.35em;
  color: var(--gray);
  display: block;
  margin-bottom: 14px;
}
.curriculum-day h3 {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: 19px;
  letter-spacing: 0.1em;
  line-height: 1.85;
  margin-bottom: 22px;
  color: var(--ink);
}
.curriculum-question {
  background: var(--off-white);
  border-left: 3px solid var(--ink);
  padding: 22px 26px;
}
.course-section.alt .curriculum-question {
  background: var(--white);
}
.curriculum-question-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--gray);
  display: block;
  margin-bottom: 10px;
}
.curriculum-question p {
  font-size: 16px !important;
  font-weight: 500 !important;
  line-height: 2.1 !important;
  color: var(--ink) !important;
  margin: 0 !important;
  letter-spacing: 0.05em;
}

/* ---------- Method Block ---------- */
.method-block {
  background: var(--off-white);
  border: 1px solid var(--line);
  padding: 40px 38px;
}
.course-section.alt .method-block {
  background: var(--white);
}
.method-block p {
  font-size: 15.5px;
  line-height: 2.55;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.method-block p:last-child { margin-bottom: 0; }

/* ---------- Related Articles ---------- */
.course-related-list {
  list-style: none;
}
.course-related-list li {
  border-bottom: 1px solid var(--line);
}
.course-related-list li:first-child {
  border-top: 1px solid var(--line);
}
.course-related-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 6px;
  font-size: 15.5px;
  letter-spacing: 0.06em;
  line-height: 1.85;
  transition: opacity 0.25s ease;
  gap: 16px;
}
.course-related-list a:hover { opacity: 0.55; }

/* ---------- Next Step ---------- */
.next-step-block {
  border: 1px solid var(--line);
  padding: 48px 44px;
  background: var(--off-white);
}
.course-section.alt .next-step-block {
  background: var(--white);
}
.next-step-block p {
  font-size: 15.5px;
  line-height: 2.5;
  color: var(--ink-soft);
  margin-bottom: 20px;
}
.next-step-block p:last-of-type { margin-bottom: 34px; }
.next-step-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-width: 220px;
  padding: 16px 32px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  letter-spacing: 0.14em;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn:hover { background: var(--white); color: var(--ink); }
.btn-line {
  background: transparent;
  color: var(--ink);
}
.btn-line:hover { background: var(--ink); color: var(--white); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.7);
  color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--ink); }
.arrow { font-family: serif; font-size: 16px; }

/* ---------- Closing ---------- */
.closing {
  background: #1a1a1a;
  color: var(--white);
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}
.closing-eyebrow {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  letter-spacing: 0.35em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 30px;
}
.closing h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 400;
  letter-spacing: 0.14em;
  line-height: 2;
  margin-bottom: 34px;
}
.closing p {
  color: rgba(255,255,255,0.78);
  line-height: 2.4;
}
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 34px;
}
.closing::before {
  content: 'RE:START';
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "Cormorant Garamond", serif;
  font-weight: 300;
  font-size: clamp(120px, 22vw, 280px);
  color: rgba(255,255,255,0.03);
  letter-spacing: 0.05em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 0;
}

/* ---------- Course Hero meta (tags) ---------- */
.course-hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}
.course-hero-meta-item {
  border: 1px solid rgba(255,255,255,0.32);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  padding: 5px 13px;
  color: rgba(255,255,255,0.82);
}
.course-hero-sublead {
  font-size: 14.5px;
  line-height: 2.5;
  color: rgba(255,255,255,0.6);
  font-weight: 300;
  letter-spacing: 0.05em;
  margin: 32px auto 0;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,0.18);
  max-width: 640px;
}

/* ---------- Outcomes list (この講座で得られること) ---------- */
.outcome-list {
  list-style: none;
  display: grid;
  gap: 14px;
}
.outcome-list li {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 20px 24px 20px 52px;
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--ink);
  position: relative;
}
.course-section.alt .outcome-list li { background: var(--white); }
.outcome-list li::before {
  content: '◯';
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  font-size: 12px;
}

/* ---------- Method steps (受講の進め方) ---------- */
.method-steps {
  display: grid;
  gap: 18px;
  margin-top: 32px;
  margin-bottom: 32px;
}
.method-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 22px;
  align-items: start;
}
.method-step-num {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 22px;
  letter-spacing: 0.18em;
  color: var(--gray);
  border-top: 1px solid var(--ink);
  padding-top: 14px;
}
.method-step-body {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.method-step-body p {
  margin: 0 !important;
  font-size: 15px !important;
  line-height: 2.15 !important;
  color: var(--ink-soft) !important;
}
.method-note {
  background: var(--off-white);
  border-left: 2px solid var(--ink);
  padding: 22px 26px;
  margin-top: 28px;
}
.course-section.alt .method-note { background: var(--white); }
.method-note p {
  font-size: 14.5px !important;
  line-height: 2.15 !important;
  color: var(--ink-soft) !important;
  margin: 0 !important;
}
.method-note p + p { margin-top: 12px !important; }

/* ---------- Curriculum overview (7日間カリキュラム概要) ---------- */
.curriculum-overview-list {
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.curriculum-overview-list li { background: var(--white); }
.course-section.alt .curriculum-overview-list { background: var(--line); }
.course-section.alt .curriculum-overview-list li { background: var(--off-white); }
.curriculum-overview-list a {
  display: grid;
  grid-template-columns: 110px 1fr 24px;
  gap: 18px;
  align-items: center;
  padding: 22px 26px;
  transition: background 0.25s ease;
}
.curriculum-overview-list a:hover { background: rgba(26,26,26,0.04); }
.curriculum-overview-list .day-num {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.32em;
  color: var(--gray);
}
.curriculum-overview-list .day-title {
  font-weight: 500;
  font-size: 15.5px;
  letter-spacing: 0.06em;
  color: var(--ink);
  line-height: 1.85;
}
.curriculum-overview-list .arrow {
  color: var(--gray);
  text-align: right;
}

/* ---------- Course Day (full day block) ---------- */
.course-day-section {
  background: var(--white);
  padding: 100px 32px;
  border-top: 1px solid var(--line);
}
.course-day-section.alt { background: var(--off-white); }
.course-day-inner {
  max-width: 800px;
  margin: 0 auto;
  scroll-margin-top: 80px;
}
.course-day-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.4em;
  color: var(--gray);
  display: block;
  margin-bottom: 18px;
  text-transform: uppercase;
}
.course-day-title {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.12em;
  line-height: 1.85;
  margin-bottom: 38px;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 26px;
}
.course-day-theme {
  background: var(--off-white);
  padding: 26px 28px;
  margin-bottom: 38px;
  border-left: 2px solid var(--ink);
}
.course-day-section.alt .course-day-theme { background: var(--white); }
.course-day-theme-label,
.course-day-block-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--gray);
  display: block;
  margin-bottom: 10px;
}
.course-day-theme p {
  margin: 0 !important;
  font-size: 15.5px !important;
  line-height: 2.2 !important;
  color: var(--ink) !important;
  font-weight: 500;
}
.course-day-body { margin-bottom: 44px; }
.course-day-body p {
  font-size: 15.5px;
  line-height: 2.55;
  color: var(--ink-soft);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
}
.course-day-body p:last-child { margin-bottom: 0; }

.course-day-question,
.course-day-work,
.course-day-action {
  padding: 30px 32px;
  margin-bottom: 22px;
}
.course-day-question {
  background: var(--white);
  border: 1px solid var(--ink);
  border-left-width: 5px;
}
.course-day-section.alt .course-day-question { background: var(--white); }
.course-day-work {
  background: var(--off-white);
  border: 1px solid var(--line);
}
.course-day-section.alt .course-day-work { background: var(--white); }
.course-day-action {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--white);
}
.course-day-action .course-day-block-label { color: rgba(255,255,255,0.55); }
.course-day-action::before {
  content: '';
}

.course-day-question p,
.course-day-work p,
.course-day-action p {
  margin: 0 !important;
  font-size: 15.5px !important;
  line-height: 2.25 !important;
  letter-spacing: 0.05em;
}
.course-day-question p {
  font-weight: 500 !important;
  color: var(--ink) !important;
}
.course-day-work p { color: var(--ink-soft) !important; }
.course-day-action p { color: var(--white) !important; }

.course-day-question p + p,
.course-day-work p + p,
.course-day-action p + p {
  margin-top: 14px !important;
}

.course-day-work-list {
  list-style: none;
  margin: 18px 0 0 !important;
  padding: 0;
  display: grid;
  gap: 8px;
}
.course-day-work-list li {
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-soft);
  padding-left: 18px;
  position: relative;
  letter-spacing: 0.04em;
}
.course-day-work-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gray);
}

/* ---------- Summary Work (受講後のまとめワーク) ---------- */
.summary-work {
  background: var(--off-white);
  border: 1px solid var(--ink);
  padding: 50px 44px;
}
.course-section.alt .summary-work { background: var(--white); }
.summary-work-list {
  list-style: none;
  display: grid;
  gap: 18px;
  counter-reset: summary-counter;
  margin-top: 8px;
}
.summary-work-list li {
  font-size: 15px;
  line-height: 2.2;
  color: var(--ink);
  padding-left: 44px;
  position: relative;
  letter-spacing: 0.04em;
  counter-increment: summary-counter;
}
.summary-work-list li::before {
  content: counter(summary-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  color: var(--gray);
  font-size: 14px;
  letter-spacing: 0.2em;
}
.summary-work-close {
  margin-top: 38px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.summary-work-close p {
  margin: 0 !important;
  font-size: 15.5px !important;
  line-height: 2.3 !important;
  color: var(--ink) !important;
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* ---------- Animation ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  header {
    padding: 20px 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(14px);
  }
  body.menu-open header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .logo,
  header.scrolled .logo { color: var(--ink); }
  .menu-toggle { display: flex; z-index: 200; }
  .menu-toggle span,
  header.scrolled .menu-toggle span { background: var(--ink); }
  nav {
    position: fixed;
    inset: 0;
    background: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 150;
  }
  nav.open {
    opacity: 1;
    pointer-events: auto;
  }
  nav ul {
    flex-direction: column;
    gap: 28px;
    text-align: center;
  }
  nav a,
  header.scrolled nav a {
    color: var(--white);
    font-size: 15px;
  }
  .menu-toggle.open span { background: var(--white); }
  .menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
  .menu-toggle.open span:nth-child(2) { opacity: 0; }
  .menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

  .page-hero { min-height: 54vh; }
  .page-intro { padding: 80px 0 50px; }
  .course-list-section { padding: 50px 0 90px; }
  .course-list-inner { padding: 0 20px; }
  .course-list-intro { margin-bottom: 44px; }
  .course-card { padding: 32px 24px; }
  .course-card .btn { width: 100%; min-width: 0; }

  .course-hero { padding: 110px 20px 64px; }
  .course-section { padding: 64px 20px; }
  .course-section h2 { font-size: 21px; line-height: 1.85; }

  .for-whom-list li { padding: 16px 18px 16px 42px; font-size: 14px; }
  .for-whom-list li::before { left: 18px; }

  .curriculum-day { padding: 30px 0; }
  .curriculum-day h3 { font-size: 17px; }
  .curriculum-question { padding: 18px 20px; }

  .course-hero-meta { gap: 8px; margin-bottom: 22px; }
  .course-hero-sublead { font-size: 13.5px; line-height: 2.35; padding-top: 20px; margin-top: 22px; }
  .outcome-list li { padding: 16px 18px 16px 44px; font-size: 14.5px; }
  .outcome-list li::before { left: 18px; }
  .method-steps { gap: 14px; }
  .method-step { grid-template-columns: 56px 1fr; gap: 14px; }
  .method-step-num { font-size: 18px; padding-top: 10px; }
  .method-step-body { padding-top: 14px; }
  .method-step-body p { font-size: 14.5px !important; }
  .method-note { padding: 20px 22px; }
  .curriculum-overview-list a {
    grid-template-columns: 70px 1fr 20px;
    gap: 12px;
    padding: 18px 18px;
  }
  .curriculum-overview-list .day-num { font-size: 12.5px; letter-spacing: 0.28em; }
  .curriculum-overview-list .day-title { font-size: 14.5px; line-height: 1.75; }
  .course-day-section { padding: 64px 20px; border-top: 1px solid var(--line); }
  .course-day-title { font-size: 21px; padding-bottom: 20px; margin-bottom: 28px; }
  .course-day-theme { padding: 22px 22px; margin-bottom: 30px; }
  .course-day-theme p { font-size: 15px !important; }
  .course-day-body { margin-bottom: 32px; }
  .course-day-body p { font-size: 15px; line-height: 2.4; }
  .course-day-question,
  .course-day-work,
  .course-day-action { padding: 24px 22px; }
  .course-day-question p,
  .course-day-work p,
  .course-day-action p { font-size: 15px !important; line-height: 2.15 !important; }
  .summary-work { padding: 36px 24px; }
  .summary-work-list li { font-size: 14.5px; padding-left: 36px; }

  .method-block { padding: 28px 22px; }
  .next-step-block { padding: 32px 22px; }
  .next-step-actions { flex-direction: column; }
  .btn { width: 100%; }
  .closing { padding: 90px 0; }
  .closing-actions { flex-direction: column; }
}

@media (max-width: 480px) {
  .header-inner { padding: 0 22px; }
  .page-hero-inner { padding: 90px 22px 0; }
  .page-hero h1 { font-size: 25px; letter-spacing: 0.08em; }
  .course-hero h1 { font-size: 25px; letter-spacing: 0.08em; }
  .course-section p { font-size: 15px; line-height: 2.45; }
}

/* ---------- Footer (matches column.css pattern) ---------- */
footer {
  background: #2f2925;
  color: var(--white);
  padding: 70px 0 30px;
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 40px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand .logo {
  color: var(--white);
  display: inline-block;
  margin-bottom: 18px;
}
.footer-tag-line {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.22em;
  margin-bottom: 20px;
}
.footer-brand p,
.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  line-height: 2;
}
.footer-col h4 {
  font-family: "Cormorant Garamond", serif;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.18em;
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.45);
  font-family: "Cormorant Garamond", serif;
  font-size: 12px;
  letter-spacing: 0.18em;
  padding-top: 28px;
  text-align: center;
}
.footer-sns {
  margin-top: 24px;
}
.footer-sns-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.22em;
  display: block;
  margin-bottom: 14px;
  font-size: 13px;
}
.footer-sns-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-sns-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,0.7);
}
.footer-sns-name {
  font-family: "Cormorant Garamond", serif;
  font-size: 14px;
  letter-spacing: 0.2em;
  min-width: 90px;
}
.footer-sns-sub {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}
@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-inner { padding: 0 24px; }
}