/* ============================================================
   Lien Dental Clinic — first.css
   初めての方ページ(first.html)専用スタイル
   ※ 先に common.css を読み込むこと
   ------------------------------------------------------------
   目次:
     01. Page Hero
     02. Page Intro + 3 Promises
     03. Step Flow (4ステップ詳細)
     04. Counseling Content
     05. Bring & Wear (持ち物・服装)
     06. FAQ
     07. Access Info
     08. Page CTA
   ============================================================ */


/* ============================================================
   01. Page Hero
   ============================================================ */
.first-hero {
  position: relative;
  padding: clamp(120px, 18vw, 200px) 0 clamp(60px, 9vw, 100px);
  color: #fff;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(184, 212, 227, 0.45) 0%, rgba(44, 62, 80, 0.65) 100%),
    url('../images/hero/first-hero.jpg') center/cover;
}

.first-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.first-hero-eyebrow {
  font-family: var(--font-serif-en);
  font-size: 12px;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-weight: 500;
}
.first-hero-eyebrow::before {
  content: "";
  width: 48px;
  height: 1px;
  background: rgba(255, 255, 255, 0.7);
}

.first-hero-title {
  font-family: var(--font-serif-jp);
  font-weight: 500;
  font-size: clamp(28px, 4.6vw, 52px);
  line-height: 1.55;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 2px 20px rgba(44, 62, 80, 0.25);
}
.first-hero-title .small-en {
  display: block;
  font-family: var(--font-serif-en);
  font-size: clamp(14px, 1.8vw, 18px);
  letter-spacing: 0.22em;
  font-style: italic;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 20px;
}

.first-hero-sub {
  margin-top: 28px;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 2.1;
  max-width: 540px;
  text-shadow: 0 2px 12px rgba(44, 62, 80, 0.18);
}


/* ============================================================
   02. Page Intro + 3 Promises
   ============================================================ */
.first-intro {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
}

.first-intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
@media (min-width: 900px) {
  .first-intro-grid {
    grid-template-columns: 1fr 1.3fr;
    gap: 72px;
  }
}

.first-intro-body {
  font-size: 14.5px;
  color: var(--color-text-secondary);
  line-height: 2.15;
}
.first-intro-body p + p {
  margin-top: 1.4em;
}

/* 3 Promises */
.welcome-promise {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 800px) {
  .welcome-promise {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

.promise-card {
  background: var(--color-bg-secondary);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: background .35s ease, transform .35s ease;
}
.promise-card:hover {
  background: #fff;
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(44, 62, 80, 0.08);
}

.promise-num {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--color-primary-main);
  font-weight: 500;
  font-style: italic;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: block;
}

.promise-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .35s ease;
}
.promise-card:hover .promise-icon {
  background: var(--color-primary-light);
}
.promise-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-primary-dark);
  fill: none;
  stroke-width: 1.5;
}

.promise-title {
  font-family: var(--font-serif-jp);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-primary);
  margin-bottom: 14px;
  line-height: 1.55;
}

.promise-desc {
  font-size: 12.5px;
  color: var(--color-text-secondary);
  line-height: 2;
}


/* ============================================================
   03. Step Flow (4ステップ詳細)
   ============================================================ */
.step-flow-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}
.step-flow-section::before {
  content: "FLOW";
  position: absolute;
  top: clamp(40px, 6vw, 70px);
  right: -10px;
  font-family: var(--font-serif-en);
  font-size: clamp(80px, 14vw, 180px);
  letter-spacing: 0.04em;
  color: rgba(184, 212, 227, 0.22);
  font-weight: 500;
  line-height: 1;
  pointer-events: none;
  font-style: italic;
  user-select: none;
}

.step-flow-head {
  margin-bottom: 72px;
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.step-flow {
  display: grid;
  gap: clamp(72px, 10vw, 120px);
  position: relative;
  z-index: 2;
}

.step-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  position: relative;
}
@media (min-width: 900px) {
  .step-item {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .step-item.is-reverse .step-item-visual {
    order: 2;
  }
}

.step-item-visual {
  position: relative;
}
.step-num {
  position: absolute;
  top: -22px;
  left: -10px;
  font-family: var(--font-serif-en);
  font-size: clamp(70px, 10vw, 120px);
  font-weight: 500;
  color: var(--color-primary-light);
  font-style: italic;
  line-height: 1;
  z-index: 2;
  letter-spacing: -0.02em;
  pointer-events: none;
}
.step-img {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  position: relative;
}

.step-item-body { }

.step-tag {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--color-primary-main);
  font-weight: 500;
  font-style: italic;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}

.step-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-primary);
  margin-bottom: 20px;
  line-height: 1.5;
}

.step-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 2.1;
  margin-bottom: 24px;
}

.step-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}
@media (min-width: 500px) {
  .step-meta {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

.step-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.step-meta-label {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--color-text-muted);
  font-weight: 500;
  font-style: italic;
  text-transform: uppercase;
}
.step-meta-value {
  font-family: var(--font-serif-jp);
  font-size: 14px;
  color: var(--color-text-primary);
  letter-spacing: 0.04em;
  font-weight: 500;
}


/* ============================================================
   04. Counseling Content
   ============================================================ */
.counseling-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
}

.counseling-head {
  margin-bottom: 56px;
  max-width: 760px;
}

.counseling-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 900px) {
  .counseling-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

.counseling-block {
  background: var(--color-bg-secondary);
  padding: 36px 32px;
  border-top: 2px solid var(--color-primary-light);
}
.counseling-block.is-feature {
  border-top-color: var(--color-accent-deep);
}

.counseling-block-tag {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--color-primary-main);
  font-style: italic;
  margin-bottom: 14px;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
}
.counseling-block.is-feature .counseling-block-tag {
  color: var(--color-accent-deep);
}

.counseling-block-title {
  font-family: var(--font-serif-jp);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  margin-bottom: 28px;
  line-height: 1.6;
}

.counseling-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: counseling-li;
}
.counseling-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line-soft);
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.85;
  display: flex;
  gap: 16px;
  counter-increment: counseling-li;
}
.counseling-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.counseling-list li::before {
  content: counter(counseling-li, decimal-leading-zero);
  font-family: var(--font-serif-en);
  font-size: 13px;
  font-style: italic;
  color: var(--color-primary-main);
  flex-shrink: 0;
  min-width: 28px;
  font-weight: 500;
  padding-top: 2px;
}
.counseling-block.is-feature .counseling-list li::before {
  color: var(--color-accent-deep);
}


/* ============================================================
   05. Bring & Wear (持ち物・服装)
   ============================================================ */
.bring-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-secondary);
}

.bring-head {
  margin-bottom: 48px;
  max-width: 760px;
}

.bring-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 700px) {
  .bring-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

.bring-card {
  background: #fff;
  padding: 36px 32px;
  border: 1px solid var(--color-line-soft);
}

.bring-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.bring-card-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-primary-dark);
  fill: none;
  stroke-width: 1.5;
}

.bring-card-title {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}
.bring-card-title-en {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-text-muted);
  font-style: italic;
  text-transform: uppercase;
  display: block;
  margin-bottom: 22px;
}

.bring-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.bring-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line-soft);
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.85;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.bring-list li:last-child {
  border-bottom: none;
}
.bring-list li::before {
  content: "—";
  color: var(--color-primary-main);
  flex-shrink: 0;
  font-family: var(--font-serif-en);
  font-style: italic;
}


/* ============================================================
   06. FAQ
   ============================================================ */
.first-faq {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
}

.first-faq-head {
  margin-bottom: 48px;
}

.first-faq-list {
  max-width: 920px;
  margin: 0 auto;
  border-top: 1px solid var(--color-line);
}

.first-faq-item {
  border-bottom: 1px solid var(--color-line);
}

.first-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 28px 60px 28px 8px;
  position: relative;
  font-family: var(--font-serif-jp);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--color-text-primary);
  transition: color .3s ease;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.first-faq-item summary::-webkit-details-marker { display: none; }
.first-faq-item summary:hover {
  color: var(--color-primary-dark);
}

.first-faq-q-label {
  font-family: var(--font-serif-en);
  font-size: 22px;
  font-style: italic;
  color: var(--color-primary-main);
  line-height: 1;
  flex-shrink: 0;
  font-weight: 500;
}

.first-faq-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.first-faq-toggle::before,
.first-faq-toggle::after {
  content: "";
  position: absolute;
  background: var(--color-primary-main);
  transition: transform .3s ease;
}
.first-faq-toggle::before {
  width: 14px;
  height: 1px;
}
.first-faq-toggle::after {
  width: 1px;
  height: 14px;
}
.first-faq-item[open] .first-faq-toggle::after {
  transform: scaleY(0);
}

.first-faq-content {
  padding: 0 8px 28px 46px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 2.05;
}
.first-faq-a-label {
  font-family: var(--font-serif-en);
  font-size: 22px;
  font-style: italic;
  color: var(--color-accent-deep);
  line-height: 1;
  flex-shrink: 0;
  font-weight: 500;
  margin-left: -30px;
}


/* ============================================================
   07. Access Info
   ============================================================ */
.access-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-secondary);
}

.access-head {
  margin-bottom: 56px;
}

.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 900px) {
  .access-grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    align-items: start;
  }
}

.access-map {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 4px 18px rgba(44, 62, 80, 0.08);
}
.access-map-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.access-detail {
  background: #fff;
  padding: 36px 32px;
}

.access-name {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}
.access-name-en {
  font-family: var(--font-serif-en);
  font-size: 12px;
  font-style: italic;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  display: block;
}

.access-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.access-info-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line-soft);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  align-items: baseline;
}
.access-info-list li:last-child {
  border-bottom: none;
}
.access-info-label {
  font-family: var(--font-serif-en);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--color-text-muted);
  font-style: italic;
  text-transform: uppercase;
  font-weight: 500;
}
.access-info-value {
  font-size: 13.5px;
  color: var(--color-text-primary);
  line-height: 1.85;
  font-family: var(--font-sans-jp);
}
.access-info-value strong {
  color: var(--color-primary-dark);
  font-weight: 500;
}

.access-hours-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}
.access-hours-table th,
.access-hours-table td {
  padding: 8px 4px;
  font-size: 12.5px;
  border-bottom: 1px solid var(--color-line-soft);
  text-align: center;
}
.access-hours-table th {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
  font-weight: 500;
  font-style: italic;
}
.access-hours-table td.is-closed {
  color: var(--color-text-muted);
}
.access-hours-table td.is-open {
  color: var(--color-primary-dark);
  font-weight: 500;
}


/* ============================================================
   08. Page CTA
   ============================================================ */
.page-cta {
  padding: clamp(80px, 12vw, 130px) 0;
  background:
    radial-gradient(ellipse 60% 60% at 20% 80%, rgba(184, 212, 227, 0.35), transparent 70%),
    radial-gradient(ellipse 60% 60% at 85% 20%, rgba(245, 212, 202, 0.25), transparent 70%),
    var(--color-bg-primary);
  text-align: center;
}

.page-cta-content {
  max-width: 720px;
  margin: 0 auto;
}

.page-cta-eyebrow {
  font-family: var(--font-serif-en);
  font-size: 12px;
  letter-spacing: 0.36em;
  color: var(--color-primary-main);
  margin-bottom: 24px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-transform: uppercase;
}
.page-cta-eyebrow::before,
.page-cta-eyebrow::after {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--color-primary-main);
}

.page-cta-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.65;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  color: var(--color-text-primary);
}
.page-cta-title .accent {
  color: var(--color-primary-dark);
  position: relative;
  display: inline-block;
}
.page-cta-title .accent::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent-soft);
}

.page-cta-lead {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 2.1;
  margin-bottom: 40px;
}

.page-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 32px;
}

.page-cta-phone {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 18px 32px;
  background: #fff;
  border: 1px solid var(--color-line);
}
.page-cta-phone .label {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
}
.page-cta-phone .num {
  font-family: var(--font-serif-en);
  font-size: 28px;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  font-weight: 500;
}
.page-cta-phone .hours {
  font-size: 11px;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
}