/* ==========================================================================
   Amakusa Island Dolphin Safari — style.css
   ========================================================================== */

:root{
  --blue: #004e9e;
  --blue-deep: #01315f;
  --ink: #171717;
  --ink-soft: #3d3d3d;
  --paper: #ffffff;
  --sky-top: #d3edfb;
  --sky-bottom: #ffffff;
  --gold: #cca049;
  --serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --maxw: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.9;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }
h1,h2,h3,p{ margin:0; }
.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width:640px){
  .wrap{ padding: 0 20px; }
}

.reveal{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .9s ease, transform .9s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background: #062a4a;
}
.hero__bg{
  position:absolute; inset:0;
}
.hero__img{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit: cover;
  opacity:0;
  transition: opacity 2.2s ease-in-out;
}
.hero__img.is-active{ opacity:1; }

.hero__wave{
  position:absolute;
  left:0; right:0; bottom:0;
  width:100%;
  height: clamp(140px, 30vh, 340px);
  display:block;
  z-index:2;
  pointer-events:none;
}

.hero__title{
  position:absolute;
  right: calc(5% + 100px);
  bottom: max(24px, calc(8% - 100px));
  z-index:4;
  height: clamp(220px, 34vh, 400px);
  width:auto;
  filter: drop-shadow(0 2px 18px rgba(0,0,0,.35));
}
@media (max-width:640px){
  .hero__title{
    height: clamp(180px, 28vh, 300px);
    right: calc(4% + 40px);
    bottom: calc(10% - 40px);
  }
}

.hero__dots{
  position:absolute;
  left: 50%;
  bottom: 4%;
  transform: translateX(-50%);
  display:flex;
  gap:8px;
  z-index:4;
}
.hero__dots span{
  width:7px; height:7px; border-radius:50%;
  background: rgba(255,255,255,.45);
  transition: background .4s ease, transform .4s ease;
}
.hero__dots span.is-active{
  background:#fff;
  transform: scale(1.25);
}

/* ==========================================================================
   LOGO SECTION
   ========================================================================== */
.logo-section{
  position: relative;
  background: var(--sky-bottom);
  text-align:center;
  padding: 140px 24px 200px;
}
@media (max-width:640px){
  .logo-section{
    padding: 100px 24px 160px;
  }
}
.logo-section__mark{
  width: min(520px, 82vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.logo-section__note{
  margin-top: 8px;
  font-size: .85rem;
  color: var(--ink-soft);
  letter-spacing: .04em;
}

/* ==========================================================================
   HERO 2 — swirl
   ========================================================================== */
.hero2{
  position:relative;
  background:#04294a;
}
.hero2__stage{
  position:relative;
  min-height: 92vh;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero2__stage > .wrap{
  width:100%;
}
.hero2__img{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
}
.hero2__scrim{
  position:absolute; inset:0;
  background: linear-gradient(100deg, rgba(0,10,25,.55) 0%, rgba(0,10,25,.15) 42%, rgba(0,10,25,0) 60%);
}
.hero2__content{
  position:relative;
  z-index:2;
  color:#fff;
  padding: 80px 0 60px;
  max-width: 640px;
}
.hero2__title-img{
  display:block;
  height: clamp(70px, 9vw, 120px);
  width:auto;
  margin-bottom: 28px;
  filter: drop-shadow(0 2px 20px rgba(0,0,0,.4));
}
.hero2__body p{
  font-size: 1.2rem;
  line-height: 2;
  text-shadow: 0 1px 12px rgba(0,0,0,.45);
}

.hero2__banner{
  position:relative;
  z-index:2;
  background: var(--blue);
  color:#fff;
  padding: 144px 0;
}
.hero2__banner .wrap{
  display:grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items:center;
}
.hero2__banner-en{
  font-size: .9rem;
  line-height:1.9;
  opacity:.92;
}
.hero2__banner-cta{
  text-align:right;
}
.hero2__banner-img{
  width: min(819px, 100%);
  height:auto;
  margin-left:auto;
}
@media (max-width: 860px){
  .hero2__stage{ min-height: auto; padding-top: 20px;}
  .hero2__content{ padding: 60px 0 40px; }
  .hero2__banner .wrap{
    grid-template-columns: 1fr;
    text-align:left;
  }
  .hero2__banner-cta{ text-align:left; }
  .hero2__banner-img{ margin-left:0; }
}
@media (max-width: 640px){
  .hero2__title-img{
    height: clamp(126px, 16.2vw, 216px);
  }
  .hero2__body p{
    font-size: .96rem;
  }
}

/* ==========================================================================
   SECTION GENERIC
   ========================================================================== */
section{ position:relative; }
.section-pad{ padding: 96px 0; }
@media (max-width:768px){ .section-pad{ padding: 64px 0; } }

.promo-video{
  max-width: 900px;
  margin: 0 auto;
}
.promo-video__frame{
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  overflow: hidden;
  background: linear-gradient(135deg, #0a3050, #04203a);
}
.promo-video__frame iframe{
  position:absolute; inset:0;
  width:100%; height:100%;
  border:0;
}
.promo-video__placeholder{
  position:absolute; inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap: 18px;
}
.promo-video__play{
  width: 64px;
  height: 64px;
}
.promo-video__label{
  color: rgba(255,255,255,.85);
  font-size: .85rem;
  letter-spacing: .08em;
  text-align:center;
  line-height:1.8;
}

.section-title{
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight:900;
  letter-spacing: .02em;
  margin-top: 100px;
  margin-bottom: 200px;
  line-height:1.5;
}
.mobile-break{ display:none; }
@media (max-width:640px){
  .mobile-break{ display:block; }
  .section-title{ font-size: 1.65rem; line-height: 3; }
}
.block-heading{
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight:900;
  margin-bottom: 20px;
}
.block-jp{
  font-size: .96rem;
  color: var(--ink-soft);
  line-height:2;
  margin-bottom: 16px;
}
.block-en{
  font-size: .78rem;
  color: #6b6b6b;
  line-height:1.9;
}
.eyebrow-en{
  font-family: var(--serif);
  font-weight:700;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  color: var(--blue);
  margin-bottom: 10px;
}

/* ==========================================================================
   NATURE SECTION (Landscape / Service)
   ========================================================================== */
.nature-intro{
  padding-top: 88px;
}
.feature-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items:center;
  margin-bottom: 76px;
}
.feature-row__images{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.feature-row__images img{
  width:100%; height: 220px;
  object-fit:cover;
  border-radius: 2px;
}
@media (max-width: 860px){
  .feature-row{
    grid-template-columns: 1fr;
    gap: 26px;
    margin-bottom: 52px;
  }
  .feature-row__images{
    grid-template-columns: 1fr;
  }
  .feature-row__images img{ height: 280px; }
  .eyebrow-en{ font-size: 2.6rem; }
}

.port-block{
  border-top: 1px solid #e4e4e4;
  padding-top: 60px;
  display:flex;
  flex-direction: column;
  gap: 40px;
}
.transit-row{
  display:flex;
  align-items:center;
  gap: 32px;
  margin: 22px 0 24px;
}
.transit-row__map{
  flex: 0 0 auto;
  min-width: 200px;
}
@media (max-width: 760px){
  .transit-row{
    flex-direction: column;
    align-items: stretch;
  }
  .transit-row__map{ order:-1; }
}
.transit-table{
  flex: 1 1 auto;
  min-width: 0;
  border-top: 1px solid #ddd;
}
.transit-table__row{
  display:flex;
  align-items:center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid #ddd;
  font-size: .88rem;
}
.transit-table__icon{
  flex: 0 0 auto;
  display:flex;
  align-items:center;
  gap: 6px;
  width: 30px;
}
.transit-table__icon--pair{ width: 54px; }
.transit-table__icon img{
  width: 24px;
  height:24px;
  object-fit:contain;
  /* SVGs are solid black; tint them brand-blue */
  filter: invert(21%) sepia(84%) saturate(1946%) hue-rotate(196deg) brightness(94%) contrast(101%);
}
.transit-table__label{
  flex: 0 0 130px;
  font-weight:700;
  letter-spacing: .02em;
}
.transit-table__value{ color: var(--ink-soft); }

.map-box--full img{
  width:100%;
  height:auto;
  display:block;
}

.photo-grid2{
  margin-top: 70px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.photo-grid2 img{
  width:100%;
  height: 320px;
  object-fit: cover;
}
@media (max-width: 860px){
  .photo-grid2{ grid-template-columns: 1fr 1fr; }
  .photo-grid2 img{ height: 160px; }
}

/* ==========================================================================
   ONE-STAGE SECTION (Dolphins/People/Sea)
   ========================================================================== */
.stage-copy{
  padding-top: 64px;
  padding-bottom: 40px;
  margin-top: -100px;
  max-width: 760px;
}
.stage-copy h2{
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight:900;
  line-height:1.5;
  margin-bottom: 36px;
}
.stage-copy .sub{
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight:900;
  border-top: 2px solid var(--ink);
  padding-top: 18px;
  margin-bottom: 26px;
}
.stage-copy .block-jp{ font-size: 1rem; }
.stage-copy .block-en{
  font-size: .9rem;
  color: var(--ink-soft);
  margin-top: 18px;
}

.vessel-bay{
  position:relative;
  padding: 90px 0 70px;
}
.vessel-bay::before{
  content:'';
  position:absolute;
  left:50%;
  top:0;
  bottom:0;
  width:100vw;
  transform: translateX(-50%);
  background-image: url('../assets/img/bg1.png');
  background-repeat: no-repeat;
  background-position: bottom center;
  background-size: 100% auto;
  background-color: var(--sky-bottom);
  z-index:0;
}
.vessel-bay__inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:flex-end;
  gap: 0;
  flex-wrap: wrap;
}
.vessel-bay__train{
  width: 52%;
  margin-right: -6%;
  position:relative;
  z-index:1;
}
.vessel-bay__boat{
  width: 48%;
  position:relative;
  z-index:2;
}
.vessel-bay__labels{
  display:flex;
  justify-content:space-between;
  margin-top: 14px;
  font-weight:700;
  font-size: .92rem;
  position:relative;
  z-index:2;
}
@media (max-width: 768px){
  .vessel-bay__inner{ flex-direction:column; align-items:center; }
  .vessel-bay__train, .vessel-bay__boat{ width: 88%; margin-right:0; }
  .vessel-bay__labels{ flex-direction:column; gap:8px; text-align:center; width:88%; margin: 10px auto 0; }
}

.duo-photos{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 50px;
}
.duo-photos img{ width:100%; height: 280px; object-fit:cover; }
@media (max-width:768px){
  .duo-photos img{ height:180px; }
}

/* ==========================================================================
   DESIGNER SECTION
   ========================================================================== */
.designer{
  padding: 90px 0 100px;
}
.designer__intro{
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 56px;
}
.designer__intro h2{
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight:900;
  line-height:1.6;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 22px;
  margin-bottom: 22px;
}
.designer__intro h2 .en{
  display:block;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
}
.designer__card{
  display:grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items:start;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.designer__card img{
  width:100%;
  border-radius: 2px;
}
.designer__card .label{
  font-weight:700;
  margin-bottom: 14px;
  font-size: .95rem;
}
.designer__card .bio{
  font-size: .85rem;
  color: var(--ink-soft);
  line-height: 2;
}
@media (max-width:640px){
  .designer__card{ grid-template-columns: 1fr; }
  .designer__card img{ width: 180px; margin: 0 auto; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{
  background:#fff;
  padding: 90px 0 60px;
  text-align:center;
  border-top: 1px solid #eee;
}
.site-footer__badge{
  width: min(340px, 80vw);
  margin: 0 auto 30px;
}
.site-footer__company{
  font-weight:700;
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.site-footer__addr{
  font-size: .88rem;
  color: var(--ink-soft);
  line-height:1.9;
  margin-bottom: 4px;
}
.site-footer__mail{
  display:inline-block;
  font-weight:700;
  margin-top: 6px;
  margin-bottom: 40px;
}
.footer-actions{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 16px;
}
.btn-contact{
  display:inline-block;
  min-width: 240px;
  padding: 16px 40px;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  font-weight:700;
  letter-spacing: .08em;
  text-align:center;
  text-decoration:none;
  transition: background .25s ease, color .25s ease;
}
.btn-contact:hover{
  background: var(--ink);
  color: #fff;
}
.btn-contact--official{
  min-width: 280px;
  padding: 20px 48px;
  font-size: 1.1rem;
  background: var(--ink);
  color: #fff;
}
.btn-contact--official:hover{
  background: var(--blue);
  border-color: var(--blue);
}
.btn-contact--map{
  border-color: var(--blue);
  color: var(--blue);
}
.btn-contact--map:hover{
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.site-footer__disclaimer{
  margin-top: 70px;
  font-size: .72rem;
  color:#9a9a9a;
  line-height:1.8;
}