/* ====================================================
   Le Chrom – 建築診断カルテ Landing Page CSS
   Luxury Minimal Design
   ==================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --gold:        #c9a84c;
  --gold-light:  #e8d5a3;
  --gold-dark:   #a87e30;
  --black:       #1a1a1a;
  --white:       #ffffff;
  --gray-light:  #f5f5f5;
  --gray-mid:    #e8e8e8;
  --gray-text:   #777777;
  --font-base:   'Noto Serif JP', 'Noto Sans JP', serif;
  --font-sans:   'Noto Sans JP', sans-serif;
  --font-serif:  'Cormorant Garamond', 'Playfair Display', serif;
  --font-display: 'Playfair Display', 'Cormorant Garamond', serif;
  --radius:      4px;
  --transition:  0.35s ease;
  --shadow:      0 4px 30px rgba(0,0,0,0.07);
}

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

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

body {
  font-family: var(--font-base);
  font-size: 15px;
  line-height: 1.8;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: var(--font-base);
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Utility ---------- */
.nowrap { white-space: nowrap; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-white { background: var(--white); }
.section-light  { background: var(--gray-light); }

/* ---------- Section Labels ---------- */
.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-base);
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--black);
  margin-bottom: 12px;
  line-height: 1.4;
}

.title-sub {
  font-size: 0.65em;
  font-weight: 400;
  color: var(--gray-text);
  display: block;
  margin-top: 6px;
  letter-spacing: 0.1em;
}

.section-desc {
  color: var(--gray-text);
  font-size: 14px;
  margin-bottom: 60px;
  letter-spacing: 0.02em;
}

/* ---------- CTA Button ---------- */
.btn-gold {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  padding: 17px 48px;
  border-radius: 0;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  font-family: var(--font-base);
}

.btn-gold:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 76, 0.35);
}

.btn-gold:active {
  transform: translateY(0);
}

.btn-full {
  display: block;
  text-align: center;
  width: 100%;
}

/* ============================================
   HERO / FIRST VIEW
   ============================================ */
.hero {
  min-height: 100svh;
  background: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.hero::after {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.45em;
  color: var(--gold);
  margin-bottom: 52px;
  font-weight: 400;
  position: relative;
  padding-top: 36px;
}

.brand-logo::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 24px;
  background: var(--gold);
  opacity: 0.6;
}

.hero-headline {
  font-family: var(--font-base);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.4;
  color: var(--black);
  margin-bottom: 24px;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(11px, 1.3vw, 13px);
  letter-spacing: 0.22em;
  color: var(--gold);
  font-weight: 400;
  margin-bottom: 28px;
  opacity: 0.85;
  font-style: italic;
}

.hero-sub {
  font-size: clamp(14px, 2vw, 17px);
  font-weight: 300;
  color: var(--gray-text);
  letter-spacing: 0.04em;
  line-height: 1.8;
  margin-bottom: 52px;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.hero-scroll-indicator span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  margin: 0 auto;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ============================================
   SERVICE SECTION
   ============================================ */
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 24px;
  align-items: start;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  padding: 36px 28px;
  border-radius: var(--radius);
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-card-accent {
  border-color: var(--gold);
  position: relative;
}

.service-card-accent::before {
  content: '◆ Main Deliverable';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--black);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.service-card-icon {
  margin-bottom: 20px;
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 400;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-list li {
  font-size: 14px;
  color: var(--black);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.service-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 12px;
  top: 1px;
}

.service-list li small {
  display: block;
  font-size: 11px;
  color: var(--gray-text);
  margin-top: 3px;
}

.service-delivery {
  font-size: 14px;
  color: var(--black);
  line-height: 1.7;
}

.service-delivery strong {
  font-size: 20px;
  font-weight: 500;
  color: var(--gold);
  display: block;
  margin-top: 6px;
}

/* ============================================
   ABOUT YUKARI SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: center;
}

.about-image-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: 2px;
  background: var(--gray-light);
  position: relative;
}

.about-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

.about-image-placeholder:hover .about-img {
  transform: scale(1.03);
}

.about-image-caption {
  text-align: center;
  font-size: 12px;
  color: var(--gray-text);
  margin-top: 12px;
  letter-spacing: 0.05em;
}

.about-image-caption span {
  display: block;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-top: 3px;
}

.about-lead {
  font-family: var(--font-base);
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--black);
  margin-bottom: 28px;
}

.about-body {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.badge {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 5px 14px;
  border: 1px solid var(--gold);
  color: var(--gold);
  border-radius: 20px;
}

/* ============================================
   PRICE SECTION
   ============================================ */
.price-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: start;
}

.price-card {
  background: var(--white);
  border: 1px solid var(--gold);
  padding: 44px 36px;
  border-radius: var(--radius);
  text-align: center;
  position: relative;
}

.price-badge-wrap {
  margin-bottom: 8px;
}

.price-early-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 5px 18px;
  border-radius: 20px;
}

.price-period {
  font-size: 12px;
  color: var(--gray-text);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.price-main {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.01em;
  line-height: 1;
  margin-bottom: 4px;
}

.price-tax {
  font-family: var(--font-base);
  font-size: 13px;
  font-weight: 400;
  color: var(--gray-text);
}

.price-normal-row {
  font-size: 13px;
  color: var(--gray-text);
  margin-bottom: 24px;
}

.price-normal-row s {
  opacity: 0.7;
}

.price-divider {
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 24px;
}

.price-payment-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray-text);
  margin-bottom: 6px;
}

.price-payment {
  font-size: 14px;
  color: var(--black);
  margin-bottom: 28px;
}

.price-note {
  font-size: 11px;
  color: var(--gray-text);
  margin-top: 14px;
  line-height: 1.6;
}

.price-includes {
  padding: 40px 0;
}

.price-includes-title {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
  font-weight: 400;
}

.price-includes-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.price-includes-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.6;
}

.check-icon {
  color: var(--gold);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.price-includes-list li small {
  display: block;
  font-size: 12px;
  color: var(--gray-text);
  margin-top: 3px;
}

/* ============================================
   PROFILE SECTION – NEW LAYOUT (architect credentials)
   ============================================ */
.profile-new-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.profile-block-title {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
  margin-bottom: 28px;
}

.profile-certs-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* responsive */
@media (max-width: 600px) {
  .profile-new-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ============================================
   PROFILE SECTION (legacy – kept for reference)
   ============================================ */
.profile-wrap {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 60px;
  align-items: start;
}

.profile-photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: 2px;
  background: var(--gray-light);
  position: relative;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.profile-name {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.profile-title {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 36px;
}

.profile-career {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
  padding-left: 20px;
  border-left: 1px solid var(--gold-light);
}

.career-item {
  position: relative;
  padding-left: 0;
}

.career-dot {
  position: absolute;
  left: -24px;
  top: 8px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--white);
}

.career-item p {
  font-size: 14px;
  color: var(--black);
  line-height: 1.7;
}

.profile-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cert-tag {
  font-size: 11px;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  background: var(--gray-light);
  color: var(--black);
  border-radius: 2px;
  border: 1px solid var(--gray-mid);
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--gray-mid);
  margin-bottom: 64px;
}

.faq-item {
  border-bottom: 1px solid var(--gray-mid);
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  width: 100%;
  padding: 26px 0;
  text-align: left;
  background: none;
  transition: color var(--transition);
}

.faq-question:hover .faq-q-text {
  color: var(--gold);
}

.faq-q-label,
.faq-a-label {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  line-height: 1.4;
  margin-top: 1px;
}

.faq-q-text {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--black);
  line-height: 1.6;
  transition: color var(--transition);
  letter-spacing: 0.04em;
  font-family: var(--font-base);
}

.faq-icon {
  font-size: 22px;
  color: var(--gold);
  font-weight: 300;
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition);
  margin-left: auto;
  padding-left: 16px;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: flex;
  gap: 18px;
  padding: 0 0 0 0;
  align-items: flex-start;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, padding 0.4s ease;
}

.faq-answer.is-open {
  max-height: 400px;
  opacity: 1;
  padding: 0 0 26px 0;
}

.faq-answer p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.85;
  flex: 1;
}

@keyframes fadeDown {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.faq-cta {
  text-align: center;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--black);
  color: #aaaaaa;
  padding: 60px 0 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--gold);
  letter-spacing: 0.4em;
  font-weight: 400;
}

.footer-person {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #888;
}

.footer-sns {
  margin-top: 4px;
}

.footer-sns-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #888;
  letter-spacing: 0.06em;
  transition: color var(--transition);
}

.footer-sns-link:hover {
  color: var(--gold);
}

.footer-links {
  font-size: 11px;
  letter-spacing: 0.04em;
}

.footer-links a {
  color: #888;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-disclaimer {
  font-size: 11px;
  color: #555;
  max-width: 500px;
  line-height: 1.7;
}

.footer-copy {
  font-family: var(--font-display);
  font-size: 11px;
  color: #555;
  letter-spacing: 0.1em;
  margin-top: 8px;
}

/* ============================================
   RESPONSIVE – TABLET (max 768px)
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  /* Service grid */
  .service-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-card-accent {
    order: -1;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }

  .about-image-placeholder {
    max-width: 260px;
    margin: 0 auto;
  }

  .about-badges {
    justify-content: center;
  }

  /* Price */
  .price-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .price-includes {
    padding: 0;
  }

  /* Profile */
  .profile-wrap {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }

  .profile-photo-placeholder {
    max-width: 200px;
    margin: 0 auto;
  }

  .profile-career {
    text-align: left;
  }

  .profile-certs {
    justify-content: center;
  }

  /* FAQ */
  .faq-q-text {
    font-size: 13px;
  }

  /* Hero */
  .hero-headline {
    font-size: clamp(24px, 6.5vw, 36px);
  }

  .btn-gold {
    padding: 15px 32px;
    font-size: 13px;
  }
}

/* ============================================
   RESPONSIVE – MOBILE (max 480px)
   ============================================ */
@media (max-width: 480px) {
  .section { padding: 56px 0; }

  .hero {
    padding: 64px 20px 80px;
  }

  .price-card {
    padding: 32px 24px;
  }

  .faq-question {
    gap: 12px;
    padding: 20px 0;
  }

  .faq-answer {
    gap: 12px;
  }
}

/* ============================================
   IMAGE FALLBACK (when external image fails)
   ============================================ */
.img-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-light);
  border: 1px dashed var(--gold-light);
}

.img-fallback::after {
  content: '✦ Photo';
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold);
  opacity: 0.6;
}

/* ============================================
   FADE-IN ANIMATIONS (Intersection Observer)
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }