/* ===== Variables ===== */
:root {
  --primary: #0a7fff;
  --dark: #333;
  --light: #f8f9fa;
  --shadow: rgba(0, 0, 0, 0.05);
}

/* ===== Reset & base ===== */
html {
  scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  line-height: 1.6;
  color: var(--dark);
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ===== Header ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #fff;
  box-shadow: 0 2px 4px var(--shadow);
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-weight: 600;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

.nav-links a:hover::after {
  width: 100%;
}

/* ===== Mobile menu ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--dark);
  border-radius: 2px;
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: #fff;
    display: none;
    border-top: 1px solid #eee;
    text-align: center;
    opacity: 0.8;
  }
  .nav-links.open {
    display: flex;
  }
  .menu-toggle {
    display: flex;
  }
}

/* ===== Hero ===== */
.hero {
  height: 85vh;
  background: url("https://source.unsplash.com/featured/?medical") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 1rem;
  animation: fadeIn 1s ease-out forwards;
  opacity: 0;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.cta-btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  transition: background 0.3s;
}

.cta-btn:hover {
  background: #0066d6;
}

@media (min-width: 992px) {
  .hero h1 {
    font-size: 3.5rem;
  }
  .hero p {
    font-size: 1.5rem;
  }
}

/* ===== Sections ===== */
section {
  padding: 4rem 0;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
}

section h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--primary);
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* Business grid */
.business-list {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .business-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.business-item {
  background: var(--light);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

.business-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px var(--shadow);
}

/* News */
.news-item {
  margin-bottom: 1.5rem;
}

/* Company info table */
.info-table {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

/* Footer */
footer {
  background: #f1f3f5;
  padding: 1rem 0;
  text-align: center;
  font-size: 0.875rem;
}

/* Fade-in utility */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* ===== Business grid redesigned ===== */
.business-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.business-card {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 2.75rem 1.5rem 1.75rem;
  box-shadow: 0 4px 12px var(--shadow);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 6px solid var(--primary);
  overflow: hidden;
}

.business-card:hover {
  transform: translateY(-6px);
}

.business-card .icon {
  position: absolute;
  top: -22px;
  right: -22px;
  background: var(--primary);
  color: #fff;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.business-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.business-card p {
  font-size: 0.94rem;
  color: #555;
}

/* ===== Variables & base remain unchanged ... */

/* ===== Hero with rotating background ===== */
.hero {
  position: relative;
  height: 85vh;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  animation: slideshow 20s ease-in-out infinite;
}

/* 0%,100% と 25%・50%・75% で 4 枚切替 (→5秒ごと) */
@keyframes slideshow {
  0%, 100% {
    background-image: url("./assets/32320859_m.jpg");
  }
  25% {
    background-image: url("./assets/22679594_s.jpg");
  }
  50% {
    background-image: url("./assets/22679149_s.jpg");
  }
  75% {
    background-image: url("./assets/30051024_s.jpg");
  }
}

/* --- Parallax fix & mobile fallback --- */
.parallax {
  height: 380px;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
@media (max-width: 768px) {
  .parallax { background-attachment: scroll; }
}

/* ===== Map Section ===== */
.map-section {
  padding: 0;
}

.map-section .narrow {
  padding: 3rem 1rem 1rem;
}

/* Map wrapper reused */
.map-wrapper {
  width: 100%;
  height: 450px;
  overflow: hidden;
}
.map-wrapper iframe {
  border: 0;
  width: 100%;
  height: 100%;
}

/* ===== Utility ===== */
.container.narrow {
  max-width: 900px;
  margin: 0 auto;
}

.container.small {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}