/* ============================================================
   Lien Dental Clinic — top.css
   TOPページ(index.html)専用スタイル
   ※ 先に common.css を読み込むこと
   ------------------------------------------------------------
   目次:
     01. SECTION 1 — Hero (Slideshow + Kinetic Typography)
     02. SECTION 2 — Three Strengths
     03. SECTION 3 — Menu (4 cards, hub-style)
     04. SECTION 4 — Director's Message
     05. SECTION 5 — News & Column
     06. SECTION 6 — Access (compact)
     07. SECTION 7 — Closing CTA
     08. Reduced Motion Overrides (TOP-specific)
   ============================================================ */


/* ============================================================
   01. SECTION 1 — Hero
   ============================================================ */
.hero {
  position: relative;
  height: clamp(560px, 88vh, 800px);
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.hero-slide.is-active { opacity: 1; }

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1);
  transition: transform 6.5s ease-out;
}
.hero-slide.is-active .hero-slide-bg {
  transform: scale(1.08); /* Ken Burns effect */
}
.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(184, 212, 227, 0.15) 0%, rgba(44, 62, 80, 0.35) 100%);
  pointer-events: none;
}

/* 3 slide visuals (placeholder gradients) */
.hero-slide-1 .hero-slide-bg {
  background-image:
    linear-gradient(135deg, rgba(184, 212, 227, 0.4), rgba(107, 143, 168, 0.5)),
    url('../images/top/hero-1-smile.jpg');
}
.hero-slide-2 .hero-slide-bg {
  background-image:
    linear-gradient(135deg, rgba(232, 220, 200, 0.35), rgba(74, 110, 135, 0.55)),
    url('../images/top/hero-2-interior.jpg');
}
.hero-slide-3 .hero-slide-bg {
  background-image:
    linear-gradient(135deg, rgba(245, 212, 202, 0.3), rgba(47, 74, 92, 0.55)),
    url('../images/top/hero-3-bonds.jpg');
}

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-text {
  max-width: 720px;
}

.hero-eyebrow {
  font-family: var(--font-serif-en);
  font-size: 12px;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 36px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-weight: 500;
  opacity: 0;
  animation: fadeUp 1s .2s ease forwards;
}
.hero-eyebrow::before {
  content: "";
  width: 48px;
  height: 1px;
  background: rgba(255, 255, 255, 0.7);
}

.hero-title {
  font-family: var(--font-serif-jp);
  font-weight: 500;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 2px 20px rgba(44, 62, 80, 0.18);
}

/* Kinetic typography — characters revealed in sequence (filled by common.js) */
.hero-title .word {
  display: inline-block;
  vertical-align: top;
}
.hero-title .char {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
  animation: charReveal .7s cubic-bezier(.2, .8, .2, 1) forwards;
}
@keyframes charReveal {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.hero-sub {
  margin-top: 28px;
  font-size: 15px;
  color: #fff;
  line-height: 2.1;
  max-width: 460px;
  opacity: 0;
  animation: fadeUp 1s 1.1s ease forwards;
  text-shadow: 0 2px 12px rgba(44, 62, 80, 0.15);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
  opacity: 0;
  animation: fadeUp 1s 1.4s ease forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide indicators */
.hero-indicators {
  position: absolute;
  bottom: 36px;
  right: clamp(20px, 4vw, 56px);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  animation: fadeUp 1s 1.6s ease forwards;
}
.hero-indicator {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  cursor: pointer;
  transition: color .3s ease;
}
.hero-indicator::before {
  content: "";
  width: 28px;
  height: 1px;
  background: rgba(255, 255, 255, 0.4);
  transition: width .35s ease, background .35s ease;
}
.hero-indicator.is-active { color: #fff; }
.hero-indicator.is-active::before {
  width: 56px;
  background: #fff;
}

/* Scroll hint */
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  display: none;
  align-items: center;
  flex-direction: column;
  gap: 10px;
  z-index: 3;
}
.hero-scroll::after {
  content: "";
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.6) 50%, transparent 50%);
  background-size: 1px 6px;
  animation: scrollHint 2s infinite;
}
@keyframes scrollHint {
  0% { transform: translateY(-10px); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}
@media (min-width: 900px) {
  .hero-scroll { display: flex; }
}


/* ============================================================
   02. SECTION 2 — Three Strengths
   ============================================================ */
.strengths {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
}

.strengths-head {
  text-align: center;
  margin-bottom: 64px;
}

.strengths-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 800px) {
  .strengths-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    position: relative;
  }
  .strengths-grid::before,
  .strengths-grid::after {
    content: "";
    position: absolute;
    top: 80px;
    bottom: 60px;
    width: 1px;
    background: var(--color-line);
  }
  .strengths-grid::before { left: 33.333%; }
  .strengths-grid::after { left: 66.666%; }
}

.strength-card {
  padding: 24px clamp(20px, 3vw, 40px);
  text-align: center;
}
.strength-num {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--color-primary-main);
  font-weight: 500;
  margin-bottom: 28px;
  font-style: italic;
}
.strength-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 28px;
  border-radius: 50%;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-primary-light);
  transition: transform .4s ease, background .4s ease;
}
.strength-card:hover .strength-icon {
  transform: translateY(-4px);
  background: var(--color-primary-light);
}
.strength-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-primary-dark);
  fill: none;
  stroke-width: 1.4;
}
.strength-title {
  font-family: var(--font-serif-jp);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}
.strength-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 2;
}


/* ============================================================
   03. SECTION 3 — Menu (4 cards, hub-style)
   ============================================================ */
.menu-sec {
  padding: var(--space-section) 0;
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}
.menu-sec::before {
  content: "MENU";
  position: absolute;
  top: clamp(40px, 6vw, 70px);
  right: 0;
  font-family: var(--font-serif-en);
  font-size: clamp(80px, 14vw, 180px);
  letter-spacing: 0.04em;
  color: rgba(184, 212, 227, 0.25);
  font-weight: 500;
  line-height: 1;
  pointer-events: none;
  font-style: italic;
}

.menu-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 56px;
  align-items: end;
  position: relative;
  z-index: 2;
}
@media (min-width: 900px) {
  .menu-head { grid-template-columns: 1.4fr 1fr; }
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  position: relative;
  z-index: 2;
}
@media (min-width: 700px) {
  .menu-grid { grid-template-columns: repeat(2, 1fr); }
}

.menu-card {
  position: relative;
  padding: 40px 32px 36px;
  background: #fff;
  overflow: hidden;
  transition: transform .4s cubic-bezier(.4, 0, .2, 1), box-shadow .4s ease;
  display: flex;
  flex-direction: column;
  min-height: 280px;
  border: 1px solid var(--color-line-soft);
}
.menu-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(44, 62, 80, 0.08);
}
.menu-card.is-feature {
  background: linear-gradient(135deg, #fff 0%, var(--color-bg-secondary) 100%);
}
.menu-card.is-feature::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--color-primary-main);
}
.menu-card-feature-tag {
  position: absolute;
  top: 28px;
  right: 32px;
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--color-accent-deep);
  font-style: italic;
  font-weight: 500;
}
.menu-card-num {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 28px;
}
.menu-card-title {
  font-family: var(--font-serif-jp);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--color-text-primary);
}
.menu-card-title-en {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--color-primary-main);
  font-style: italic;
  margin-bottom: 18px;
  display: block;
  font-weight: 400;
}
.menu-card-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.95;
  flex: 1;
}
.menu-card-link {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--color-primary-dark);
}
.menu-card-link .arrow {
  width: 22px;
  height: 1px;
  background: currentColor;
  position: relative;
  transition: width .3s ease;
}
.menu-card-link .arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}
.menu-card:hover .menu-card-link .arrow { width: 32px; }


/* ============================================================
   04. SECTION 4 — Director's Message
   ============================================================ */
.director {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
  overflow: hidden;
}
.director-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 900px) {
  .director-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 80px;
  }
}

.director-visual { position: relative; }
.director-img {
  aspect-ratio: 4/5;
  background:
    linear-gradient(135deg, rgba(184, 212, 227, 0.4), rgba(74, 110, 135, 0.25)),
    url('../images/staff/director-portrait.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
}
.director-img::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 20px;
  width: calc(100% - 40px);
  height: calc(100% - 40px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  pointer-events: none;
  z-index: 2;
}
.director-cred {
  position: absolute;
  bottom: -20px;
  right: -16px;
  background: #fff;
  padding: 18px 24px;
  max-width: 220px;
  box-shadow: 0 20px 50px rgba(44, 62, 80, 0.1);
  z-index: 3;
}
.director-cred .label {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--color-primary-main);
  margin-bottom: 8px;
  font-weight: 500;
}
.director-cred .text {
  font-family: var(--font-serif-jp);
  font-size: 13.5px;
  line-height: 1.6;
  font-weight: 500;
  color: var(--color-text-primary);
}

.director-text { position: relative; }

.director-title {
  margin-top: 20px;
}

.director-quote {
  font-family: var(--font-serif-jp);
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.08em;
  margin: 28px 0 32px;
  color: var(--color-text-primary);
}
.director-quote .accent {
  color: var(--color-primary-dark);
  position: relative;
  display: inline-block;
}
.director-quote .accent::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent-soft);
}
.director-bio {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 2.1;
  margin-bottom: 32px;
  max-width: 540px;
}
.director-sign {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-line);
}
.director-sign .role {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-weight: 500;
}
.director-sign .name {
  font-family: var(--font-serif-jp);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.director-sign .name-en {
  font-family: var(--font-serif-en);
  font-size: 13px;
  font-style: italic;
  color: var(--color-text-muted);
}


/* ============================================================
   05. SECTION 5 — News & Column
   ============================================================ */
.news-sec {
  padding: var(--space-section) 0;
  background: var(--gradient-soft);
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 900px) {
  .news-grid {
    grid-template-columns: 1fr 1.6fr;
    gap: 72px;
  }
}

.news-list {
  border-top: 1px solid var(--color-line);
}
.news-item {
  border-bottom: 1px solid var(--color-line);
}
.news-item a {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 4px;
  transition: padding .3s ease, background .3s ease;
}
.news-item a:hover {
  opacity: 1;
  padding-left: 16px;
  background: rgba(255, 255, 255, 0.5);
}
.news-date {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.news-cat {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--color-primary-main);
  border: 1px solid var(--color-primary-light);
  padding: 4px 10px;
  white-space: nowrap;
  background: #fff;
}
.news-title {
  font-size: 14px;
  color: var(--color-text-primary);
  line-height: 1.6;
  font-weight: 500;
}
.news-arrow {
  width: 14px;
  height: 1px;
  background: var(--color-text-muted);
  position: relative;
  transition: width .3s ease, background .3s ease;
}
.news-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
  color: var(--color-text-muted);
}
.news-item a:hover .news-arrow {
  width: 26px;
  background: var(--color-primary-dark);
}
.news-item a:hover .news-arrow::after { color: var(--color-primary-dark); }

.news-foot {
  margin-top: 32px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .news-item a {
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    gap: 8px 16px;
  }
  .news-title { grid-column: 1 / -1; }
  .news-arrow { display: none; }
}


/* ============================================================
   06. SECTION 6 — Access (compact)
   ============================================================ */
.access {
  padding: var(--space-section) 0;
  background: var(--color-bg-primary);
}

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

.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 900px) {
  .access-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: start;
  }
}

.access-map {
  width: 100%;
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 14px 32px rgba(44, 62, 80, 0.1);
}
.access-map-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.access-info > * + * { margin-top: 28px; }

.highlight-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: var(--color-accent-soft);
  font-family: var(--font-serif-jp);
  font-size: 13px;
  color: var(--color-accent-deep);
  font-weight: 500;
  letter-spacing: 0.08em;
}
.highlight-strip::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-accent-deep);
  border-radius: 50%;
}

.hours-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.hours-table th,
.hours-table td {
  padding: 12px 6px;
  text-align: center;
  border-bottom: 1px solid var(--color-line-soft);
}
.hours-table thead th {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--color-line);
}
.hours-table tbody th {
  text-align: left;
  font-weight: 500;
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding-left: 12px;
}
.hours-table td.open {
  color: var(--color-primary-dark);
  font-weight: 500;
}
.hours-table td.closed { color: var(--color-text-muted); }

.access-meta {
  display: grid;
  gap: 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}
.access-meta .row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line-soft);
}
.access-meta .row .label {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--color-text-muted);
  font-weight: 500;
  padding-top: 3px;
}
.access-meta .row .value { line-height: 1.85; }
.access-meta .row .value.is-phone {
  font-family: var(--font-serif-en);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  font-weight: 500;
}

.access-foot {
  margin-top: 36px;
  text-align: right;
}


/* ============================================================
   07. SECTION 7 — Closing CTA
   ============================================================ */
.closing {
  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-secondary);
  text-align: center;
  position: relative;
}

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

.closing-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;
}
.closing-eyebrow::before,
.closing-eyebrow::after {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--color-primary-main);
}

.closing-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.65;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
  color: var(--color-text-primary);
}
.closing-title .accent {
  color: var(--color-primary-dark);
  position: relative;
  display: inline-block;
}
.closing-title .accent::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent-soft);
}

.closing-lead {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 2.1;
  margin-bottom: 44px;
}

.closing-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 44px;
}

.closing-phone {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 26px 40px;
  background: #fff;
  border: 1px solid var(--color-line);
}
.closing-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;
}
.closing-phone .num {
  font-family: var(--font-serif-en);
  font-size: 34px;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  font-weight: 500;
}
.closing-phone .hours {
  font-size: 11.5px;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
}


/* ============================================================
   08. Reduced Motion Overrides (TOP-specific)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .hero-slide.is-active .hero-slide-bg { transform: none; }
  .hero-title .char {
    transform: none;
    opacity: 1;
    animation: none;
  }
  .hero-eyebrow,
  .hero-sub,
  .hero-ctas,
  .hero-indicators {
    opacity: 1;
    animation: none;
  }
}