/* ============================================
   MEDU LP - MAIN STYLESHEET
   Black / Deep Navy / Gold - Intellectual & Sophisticated
   ============================================ */

:root {
  --color-black: #0a0a0a;
  --color-navy: #0d1b2a;
  --color-navy-mid: #1a2f45;
  --color-navy-light: #243850;
  --color-gold: #c9a96e;
  --color-gold-light: #e8c98a;
  --color-gold-dark: #a07840;
  --color-white: #fafafa;
  --color-off-white: #f2ede8;
  --color-gray-light: #e8e4df;
  --color-gray: #9a958e;
  --color-text: #2a2520;
  --color-text-light: #6b6560;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;

  --container-max: 1080px;
  --container-pad: clamp(1.5rem, 5vw, 3rem);

  --transition: 0.3s ease;
  --radius: 4px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-black);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.75; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* ===== FADE IN ANIMATION ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.is-visible { opacity: 1; transform: none; }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  color: var(--color-white);
  line-height: 1.4;
  font-weight: 600;
  margin-bottom: 1rem;
}
.section-desc {
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.9em 2em;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-align: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--color-gold);
  color: var(--color-navy);
  border: 2px solid var(--color-gold);
}
.btn-primary:hover { background: var(--color-gold-light); border-color: var(--color-gold-light); opacity: 1; }
.btn-outline {
  background: transparent;
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
}
.btn-outline:hover { background: rgba(201,169,110,0.1); opacity: 1; }

/* Apply buttons */
.btn-apply {
  padding: 1em 2.2em;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 2px solid;
  font-weight: 700;
  transition: all var(--transition);
  letter-spacing: 0.05em;
  display: block;
  text-align: center;
}
.btn-apply-tokyo, .btn-apply-osaka {
  background: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}
.btn-apply-online {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}
/* Disabled state */
.btn-apply:disabled,
.btn-apply[disabled],
.btn-apply.disabled {
  background: #2a2520 !important;
  color: #5a5550 !important;
  border-color: #3a3530 !important;
  cursor: not-allowed;
  opacity: 0.6;
  pointer-events: none;
}
.btn-apply:not(:disabled):not(.disabled):hover { filter: brightness(1.1); opacity: 1; }

/* CTA button group */
.cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201,169,110,0.2);
}
.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0.75rem var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.header-logo { display: flex; align-items: center; }
.logo-img { height: 36px; width: auto; }
.header-nav { display: flex; align-items: center; gap: 1.5rem; }
.header-nav a {
  font-size: 0.82rem;
  color: var(--color-gray);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.header-nav a:hover { color: var(--color-gold); opacity: 1; }
.header-nav .nav-cta {
  background: var(--color-gold);
  color: var(--color-navy);
  padding: 0.45em 1.2em;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.82rem;
}
.header-nav .nav-cta:hover { background: var(--color-gold-light); opacity: 1; }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 60px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(10,10,10,0.92) 0%,
    rgba(13,27,42,0.85) 50%,
    rgba(10,10,10,0.6) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 5rem var(--container-pad) 3rem;
}
.hero-text { max-width: 600px; }

.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: block;
}
.hero-title { margin-bottom: 1.5rem; }
.hero-title-main {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.35;
}
.hero-catch {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-gold-light);
  line-height: 1.5;
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.hero-sub {
  font-size: 0.9rem;
  color: var(--color-gray);
  margin-bottom: 1.5rem;
}
.hero-book {
  font-size: 0.85rem;
  color: var(--color-off-white);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--color-gold);
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}
.badge {
  font-size: 0.75rem;
  padding: 0.3em 0.9em;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  border-radius: 2px;
  letter-spacing: 0.05em;
}
.hero-cta-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
}
.hero-cta-wrap .btn { font-size: 0.88rem; padding: 0.8em 1.6em; }

/* 法定情報ブロック（ヒーロー内） */
.legal-info-hero {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(201,169,110,0.25);
  border-left: 3px solid var(--color-gold);
  background: rgba(13,27,42,0.5);
  backdrop-filter: blur(4px);
  border-radius: var(--radius);
}
.legal-info-text {
  font-size: 0.75rem;
  color: var(--color-gray);
  line-height: 1.9;
  letter-spacing: 0.02em;
}
.legal-info-text strong { color: var(--color-off-white); }
.legal-info-text a { color: var(--color-gold); text-decoration: underline; text-underline-offset: 2px; }
.legal-info-text a:hover { color: var(--color-gold-light); opacity: 1; }

/* ===== INTRO ===== */
.intro {
  background: var(--color-navy);
  padding: 4rem 0;
  text-align: center;
  border-bottom: 1px solid rgba(201,169,110,0.15);
}
.intro-text {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--color-off-white);
  line-height: 2;
  max-width: 700px;
  margin: 0 auto;
}
.intro-text strong { color: var(--color-gold-light); }

/* ===== BENEFITS ===== */
.benefits {
  background: var(--color-black);
  padding: 5rem 0;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.benefit-card {
  background: var(--color-navy);
  border: 1px solid rgba(201,169,110,0.2);
  border-top: 3px solid var(--color-gold);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius);
  transition: transform var(--transition);
}
.benefit-card:hover { transform: translateY(-4px); }
.benefit-num {
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-gold);
  opacity: 0.5;
  margin-bottom: 0.75rem;
  line-height: 1;
}
.benefit-card p {
  font-size: 0.9rem;
  color: var(--color-off-white);
  line-height: 1.7;
}

/* ===== WHY NOW ===== */
.why-now {
  background: var(--color-navy);
  padding: 5rem 0;
}
.why-now-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3rem;
  align-items: center;
}
.why-now-img img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(10%);
}
.why-now-text .section-title { text-align: left; }
.why-now-text p {
  color: var(--color-off-white);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 1rem;
}
.why-now-text strong { color: var(--color-gold-light); }

/* ===== PROGRAM ===== */
.program {
  background: var(--color-black);
  padding: 5rem 0;
}
.program-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: center;
}
.program-list { order: 1; }
.program-img { order: 2; }
.program-img img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(10%);
}
.program-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(201,169,110,0.1);
}
.program-num {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-gold);
  font-weight: 700;
  flex-shrink: 0;
  min-width: 1.8rem;
}
.program-item p {
  color: var(--color-off-white);
  font-size: 0.95rem;
  line-height: 1.6;
}
.program-note {
  font-size: 0.85rem;
  color: var(--color-gray);
  margin-top: 1.25rem;
  font-style: italic;
}

/* ===== MID CTA ===== */
.mid-cta {
  background: var(--color-navy-mid);
  padding: 4rem 0;
  text-align: center;
  border-top: 1px solid rgba(201,169,110,0.2);
  border-bottom: 1px solid rgba(201,169,110,0.2);
}
.mid-cta-text {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-white);
  margin-bottom: 0.5rem;
}
.mid-cta-sub {
  font-size: 0.85rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

/* ===== FOR WHOM ===== */
.for-whom {
  background: var(--color-black);
  padding: 5rem 0;
}
.whom-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.whom-list li {
  color: var(--color-off-white);
  font-size: 0.95rem;
  padding: 1.1rem 0 1.1rem 1.5rem;
  border-bottom: 1px solid rgba(201,169,110,0.1);
  position: relative;
  line-height: 1.6;
}
.whom-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: 700;
}

/* ===== VENUE VALUE ===== */
.venue-value {
  background: var(--color-navy);
  padding: 5rem 0;
}
.venue-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}
.venue-text .section-title { text-align: left; }
.venue-text p {
  color: var(--color-off-white);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 1rem;
}
.venue-note {
  font-size: 0.85rem;
  color: var(--color-gold);
  padding: 0.75rem 1rem;
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: var(--radius);
  margin-top: 0.5rem !important;
}
.venue-img img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(15%);
}

/* ===== OVERVIEW ===== */
.overview {
  background: var(--color-black);
  padding: 5rem 0;
}
.overview-table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
.overview-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}
.overview-table th {
  background: var(--color-navy);
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  padding: 0.9rem 1.25rem;
  border: 1px solid rgba(201,169,110,0.2);
  text-align: left;
  font-weight: 600;
}
.overview-table td {
  padding: 1rem 1.25rem;
  border: 1px solid rgba(201,169,110,0.1);
  color: var(--color-off-white);
  font-size: 0.9rem;
  line-height: 1.6;
  background: rgba(13,27,42,0.4);
}
.venue-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25em 0.75em;
  border-radius: 2px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.venue-tag.tokyo { background: rgba(201,169,110,0.2); color: var(--color-gold); border: 1px solid var(--color-gold); }
.venue-tag.osaka { background: rgba(180,120,80,0.2); color: #e0a060; border: 1px solid #e0a060; }
.venue-tag.online { background: rgba(80,130,200,0.2); color: #80b0e8; border: 1px solid #80b0e8; }
.overview-note {
  font-size: 0.82rem;
  color: var(--color-gray);
  line-height: 2;
}

/* ===== PROFILE ===== */
.profile {
  background: var(--color-navy);
  padding: 5rem 0;
}
.profile-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
}
.profile-img img {
  width: 100%;
  border-radius: var(--radius);
  filter: grayscale(10%);
  border: 3px solid rgba(201,169,110,0.3);
}
.profile-name {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}
.profile-ruby {
  font-size: 0.85rem;
  color: var(--color-gold);
  font-family: var(--font-sans);
  font-weight: 400;
  letter-spacing: 0.05em;
}
.profile-title {
  font-size: 0.85rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}
.profile-text p {
  color: var(--color-off-white);
  font-size: 0.92rem;
  line-height: 1.9;
  margin-bottom: 1rem;
}
.profile-books {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(201,169,110,0.3);
  border-left: 3px solid var(--color-gold);
  border-radius: var(--radius);
  background: rgba(0,0,0,0.3);
}
.profile-books-label {
  font-size: 0.75rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem !important;
}
.profile-books-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-white);
  font-weight: 600;
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq {
  background: var(--color-black);
  padding: 5rem 0;
}
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(201,169,110,0.15); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 0;
  color: var(--color-off-white);
  font-size: 0.95rem;
  font-family: var(--font-serif);
  font-weight: 500;
  text-align: left;
  gap: 1rem;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--color-gold); }
.faq-icon {
  font-size: 1.25rem;
  color: var(--color-gold);
  flex-shrink: 0;
  transition: transform var(--transition);
  line-height: 1;
}
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 0 1.4rem; }
.faq-answer p {
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1.9;
}
.faq-answer.is-open { display: block; }

/* ===== APPLY SECTION ===== */
.apply {
  background: var(--color-navy);
  padding: 5rem 0;
  border-top: 1px solid rgba(201,169,110,0.2);
}
.apply-simple-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.apply-btns-simple {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.apply-btns-simple .btn-apply {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 2rem;
  text-align: center;
  transition: all var(--transition);
}
.btn-apply-venue {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  display: block;
}
.btn-apply-place {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.03em;
  display: block;
  margin-bottom: 0.1em;
}
.btn-apply-address {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 0.25em;
}
.btn-apply-details {
  font-size: 0.82rem;
  line-height: 1.6;
  opacity: 0.9;
  display: block;
}
.apply-btns-simple .btn-apply:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(201,169,110,0.3);
}


.apply-notice {
  font-size: 0.8rem;
  color: var(--color-gray);
  line-height: 1.9;
  border-top: 1px solid rgba(201,169,110,0.1);
  padding-top: 1rem;
}

/* ===== FINAL CTA ===== */
.final-cta {
  background: var(--color-black);
  padding: 6rem 0;
  text-align: center;
}
.final-cta-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.final-cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.4;
}
.final-cta-text {
  max-width: 600px;
  margin: 0 auto 1rem;
  color: var(--color-off-white);
  font-size: 0.95rem;
  line-height: 1.9;
}
.final-cta-limit {
  margin-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--color-gold);
  letter-spacing: 0.08em;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-navy);
  border-top: 1px solid rgba(201,169,110,0.2);
  padding: 3rem 0 1.5rem;
}
.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  text-align: center;
}
.footer-logo-wrap { margin-bottom: 1.5rem; }
.footer-logo { height: 44px; width: auto; margin: 0 auto; }
.footer-company {
  margin-bottom: 1.5rem;
  font-size: 0.78rem;
  color: var(--color-gray);
  line-height: 1.9;
}
.footer-company strong { color: var(--color-off-white); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.footer-nav a {
  font-size: 0.8rem;
  color: var(--color-gray);
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--color-gold); opacity: 1; }
.footer-copy {
  font-size: 0.75rem;
  color: rgba(154,149,142,0.5);
  letter-spacing: 0.05em;
}

/* ===== SP BREAK ===== */
.sp-br { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sp-br { display: block; }

  .header-nav { display: none; }
  .header-inner { justify-content: space-between; }

  /* Show only apply button on mobile */
  .header-inner::after {
    content: 'お申し込み';
    display: block;
    background: var(--color-gold);
    color: var(--color-navy);
    padding: 0.45em 1em;
    border-radius: var(--radius);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
  }

  .hero { min-height: 100svh; }
  .hero-content { padding: 5rem 1.5rem 2rem; }
  .hero-cta-wrap { flex-direction: column; }
  .hero-cta-wrap .btn { width: 100%; text-align: center; }

  .why-now-inner,
  .program-inner,
  .venue-inner,
  .profile-inner { grid-template-columns: 1fr; }

  .why-now-img img,
  .program-img img,
  .venue-img img { height: 260px; }

  .program-img { order: -1; }

  .profile-inner { gap: 2rem; }
  .profile-img img { max-width: 220px; }

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

  .cta-btns { flex-direction: column; }
  .cta-btns .btn { width: 100%; text-align: center; }

  .apply-btns { flex-direction: column; }
  .apply-btns .btn-apply { width: 100%; }
}

@media (max-width: 480px) {
  .benefits-grid { grid-template-columns: 1fr; }
  .overview-table { font-size: 0.82rem; }
  .hero-title-main { font-size: 1.6rem; }
}