/* ===================================
   ONSHORE FISH - Main Stylesheet
=================================== */

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

:root {
  --color-navy:    #0a2342;
  --color-ocean:   #0d4f8c;
  --color-teal:    #0b7b8a;
  --color-sky:     #4db8cc;
  --color-white:   #ffffff;
  --color-light:   #f4f8fc;
  --color-gray:    #6b7280;
  --color-dark:    #1a1a2e;
  --color-accent:  #f0a500;
  --font-en: 'Georgia', 'Times New Roman', serif;
  --font-jp: 'Hiragino Sans', 'Meiryo', sans-serif;
  --transition: 0.3s ease;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0,0,0,0.12);
}

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

body {
  font-family: var(--font-jp);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover { opacity: 0.75; }

ul { list-style: none; }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.bg-light  { background: var(--color-light); }
.bg-ocean  { background: var(--color-navy); }

/* ----- Section Titles ----- */
.section-title {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-gray);
  font-size: 0.9rem;
  margin-bottom: 48px;
  letter-spacing: 0.08em;
}

.section-title.white  { color: var(--color-white); }
.section-subtitle.white { color: rgba(255,255,255,0.7); }

/* ===================================
   HEADER
=================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 35, 66, 0.2);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
}

.logo a {
  font-family: var(--font-en);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.08em;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-jp {
  font-family: var(--font-jp);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--color-sky);
}

/* デスクトップ: header右上にfixedで配置 */
.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1001; /* headerより前面 */
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.site-nav ul {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  font-weight: 500;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.site-nav a:hover {
  color: var(--color-sky);
  opacity: 1;
  border-bottom-color: var(--color-sky);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================================
   HERO
=================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: slideShow 15s infinite;
}

.hero-slide.slide1 {
  background-image: url('top1.webp');
  background-size: cover;
  background-position: center;
  animation: slideShow 10s infinite, kenburns1 10s ease-out infinite;
  animation-delay: 0s, 0s;
}

.hero-slide.slide2 {
  background-image: url('top2.avif');
  background-size: cover;
  background-position: center;
  animation: slideShow 10s infinite, kenburns2 10s ease-out infinite;
  animation-delay: 5s, 5s;
}

@keyframes kenburns1 {
  0%   { transform: scale(1)    translate(0, 0); }
  100% { transform: scale(1.08) translate(-1%, -1%); }
}

@keyframes kenburns2 {
  0%   { transform: scale(1)    translate(0, 0); }
  100% { transform: scale(1.08) translate(1%, -1%); }
}

.hero-slide.slide3 {
  display: none;
}

@keyframes slideShow {
  0%   { opacity: 0; }
  5%   { opacity: 1; }
  50%  { opacity: 1; }
  55%  { opacity: 0; }
  100% { opacity: 0; }
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(10,35,66,0.1) 0%,
    rgba(10,35,66,0.05) 50%,
    rgba(10,35,66,0.2) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
}

.hero-catch {
  font-family: var(--font-en);
  font-size: 1.1rem;
  letter-spacing: 0.25em;
  color: var(--color-sky);
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.hero-title {
  font-family: var(--font-en);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.1;
  text-shadow: 0 4px 20px rgba(0,0,0,0.5);
  margin-bottom: 12px;
}

.hero-logo-img {
  max-width: min(560px, 85vw);
  height: auto;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
}

.hero-sub {
  font-family: var(--font-en);
  font-size: 1rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.7);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  font-family: var(--font-en);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

.hero-arrow { font-size: 1.2rem; }

/* ===================================
   NEWS BAR
=================================== */
.news-bar {
  background: var(--color-ocean);
  padding: 14px 0;
  color: var(--color-white);
}

.news-bar .container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.news-label {
  background: var(--color-accent);
  color: var(--color-dark);
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 3px;
  white-space: nowrap;
}

.news-text {
  font-size: 0.9rem;
}

/* ===================================
   ABOUT
=================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-text p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.9;
}

.img-placeholder {
  background: linear-gradient(135deg, var(--color-ocean), var(--color-teal));
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  color: rgba(255,255,255,0.8);
}

.img-placeholder span { font-size: 3.5rem; }
.img-placeholder p    { font-size: 0.9rem; letter-spacing: 0.1em; }
.img-placeholder.tall { padding: 80px 20px; }

/* ===================================
   POINT
=================================== */
.point-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.point-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  color: var(--color-white);
  transition: transform var(--transition), background var(--transition);
}

.point-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.15);
}

.point-icon { font-size: 2.5rem; margin-bottom: 16px; }

.point-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.point-card p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
}

/* ===================================
   FLOW
=================================== */
.flow-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  text-align: center;
  padding: 0 16px;
}

.flow-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-ocean);
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.flow-step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-navy);
}

.flow-step p {
  font-size: 0.82rem;
  color: var(--color-gray);
  line-height: 1.7;
}

.flow-arrow {
  font-size: 1.8rem;
  color: var(--color-sky);
  padding-top: 12px;
  flex-shrink: 0;
}

/* ===================================
   PRICE
=================================== */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.price-card {
  background: var(--color-white);
  border: 2px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: box-shadow var(--transition);
}

.price-card:hover {
  box-shadow: var(--shadow);
}

.price-card.featured {
  border-color: var(--color-ocean);
  box-shadow: 0 8px 32px rgba(13,79,140,0.2);
}

.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-dark);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.price-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-navy);
}

.price-target {
  font-size: 0.8rem;
  color: var(--color-gray);
  margin-bottom: 20px;
}

.price-amount {
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-ocean);
  margin-bottom: 20px;
  line-height: 1;
}

.price-amount span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gray);
}

.price-includes {
  text-align: left;
  margin-bottom: 24px;
}

.price-includes li {
  font-size: 0.85rem;
  padding: 5px 0;
  border-bottom: 1px solid #f0f0f0;
  color: var(--color-gray);
}

.price-note {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-gray);
}

/* ===================================
   BOAT
=================================== */
.boat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.boat-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.boat-info { padding: 24px; }

.boat-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-navy);
}

.boat-spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.boat-spec th,
.boat-spec td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.boat-spec th {
  width: 30%;
  color: var(--color-ocean);
  font-weight: 700;
  white-space: nowrap;
}

/* ===================================
   ACCESS
=================================== */
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.access-dl dt {
  font-weight: 700;
  color: var(--color-ocean);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-top: 16px;
}

.access-dl dd {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-dark);
  margin-top: 4px;
}

.tel-link {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-ocean);
  letter-spacing: 0.05em;
}

.map-placeholder {
  background: linear-gradient(135deg, #d0e8f2, #b0d4e8);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 24px;
  text-align: center;
}

.map-placeholder span { font-size: 3rem; }
.map-placeholder p    { font-size: 0.9rem; color: var(--color-gray); }

/* ===================================
   CONTACT
=================================== */
.contact-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.contact-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  color: var(--color-white);
  display: block;
  transition: background var(--transition), transform var(--transition);
}

.contact-card:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-3px);
  opacity: 1;
}

.contact-icon  { font-size: 2rem; margin-bottom: 12px; }

.contact-card h3 {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.1em;
}

.contact-info { font-size: 0.95rem; margin-bottom: 4px; }

.contact-note {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
}

/* Contact Form */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 40px;
}

.form-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 28px;
  text-align: center;
  letter-spacing: 0.05em;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 6px;
  font-weight: 500;
}

.required {
  background: #e74c3c;
  color: #fff;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 5px;
  font-size: 0.95rem;
  font-family: var(--font-jp);
  color: var(--color-dark);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-sky);
  box-shadow: 0 0 0 3px rgba(77,184,204,0.3);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--color-accent);
  color: var(--color-dark);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: all var(--transition);
  font-family: var(--font-jp);
}

.btn-submit:hover {
  background: #d4920a;
  transform: translateY(-1px);
}

/* ===================================
   BUTTONS
=================================== */
.btn {
  display: inline-block;
  padding: 10px 28px;
  border-radius: 5px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--color-ocean);
  color: var(--color-white);
  border: 2px solid var(--color-ocean);
}

.btn-primary:hover {
  background: var(--color-navy);
  border-color: var(--color-navy);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: var(--color-ocean);
  border: 2px solid var(--color-ocean);
}

.btn-outline:hover {
  background: var(--color-ocean);
  color: var(--color-white);
  opacity: 1;
}

.btn.small { padding: 7px 18px; font-size: 0.82rem; }

/* ===================================
   FOOTER
=================================== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.8);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 0.75rem;
  color: var(--color-sky);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-sky);
  margin-bottom: 16px;
  font-family: var(--font-en);
}

.footer-links ul { display: flex; flex-direction: column; gap: 8px; }

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}

.footer-links a:hover { color: var(--color-sky); opacity: 1; }

.footer-contact p {
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.footer-contact a { color: rgba(255,255,255,0.8); }

.footer-sns {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.sns-link {
  font-size: 0.78rem;
  padding: 4px 12px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
}

.sns-link:hover {
  border-color: var(--color-sky);
  color: var(--color-sky);
  opacity: 1;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

/* ===================================
   BACK TO TOP
=================================== */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 900;
  width: 44px;
  height: 44px;
  background: var(--color-ocean);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--color-navy);
  opacity: 1;
}

/* ===================================
   RESPONSIVE
=================================== */
@media (max-width: 900px) {
  .point-grid            { grid-template-columns: repeat(2, 1fr); }
  .price-grid            { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto 24px; }
  .boat-grid             { grid-template-columns: 1fr; }
  .access-grid           { grid-template-columns: 1fr; }
  .contact-methods       { grid-template-columns: 1fr; }
  .footer-grid           { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  /* Header */
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    height: calc(100vh - 64px);
    z-index: 999;
    background: rgba(10, 35, 66, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: block;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

  .site-nav.open { transform: translateX(0); }

  .site-nav ul {
    display: block;
    width: 100%;
    padding: 24px 0 40px;
  }

  .site-nav ul li {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.15);
  }

  .site-nav ul li:first-child {
    border-top: 1px solid rgba(255,255,255,0.15);
  }

  .site-nav a {
    display: block;
    font-size: 1.1rem;
    padding: 20px 0;
    letter-spacing: 0.2em;
    color: var(--color-white);
  }

  /* Sections */
  .section { padding: 56px 0; }
  .section-title { font-size: 2rem; }

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

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

  .flow-steps {
    flex-direction: column;
    align-items: center;
  }

  .flow-arrow { transform: rotate(90deg); }

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

  .contact-form { padding: 24px 16px; }

  .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
}