@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
  /* Color Palette */
  --color-main: #4A90D9; /* ミディアムブルー */
  --color-sub1: #EBF4FF; /* アイスブルー */
  --color-sub2: #C5DCEF; /* ライトスカイブルー */
  --color-accent: #1E5A96; /* ディープブルー（濃いめだが暗すぎない） */
  --color-text: #1C2F45; /* ダークネイビーグレー */
  --color-bg: #F4F9FE; /* ペールブルーホワイト */
  --color-white: #FFFFFF;
  
  /* Typography */
  --font-base: 'Noto Sans JP', sans-serif;
  --line-height-base: 1.8;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
  --transition-fast: 0.3s ease;
}

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

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

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-height);
}

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

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

ul, ol {
  list-style: none;
}

/* Utility Classes */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }

.section-padding {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
  font-size: 1.1rem;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background-color: var(--color-main);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(61, 107, 80, 0.2);
}

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

.btn-secondary:hover {
  background-color: var(--color-sub1);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.site-header .container {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 1px;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--color-main);
}

/* Navigation */
.main-nav ul {
  display: flex;
  gap: 24px;
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover {
  color: var(--color-main);
}

.nav-cta {
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  padding: 8px 20px;
  border-radius: 20px;
  transition: background-color var(--transition-fast);
}

.nav-cta:hover {
  background-color: var(--color-main);
}

/* Hamburger Menu (Mobile) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  position: absolute;
  left: 0;
  transition: all var(--transition-fast);
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 11px; }
.menu-toggle span:nth-child(3) { top: 22px; }

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg);
  top: 11px;
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg);
  top: 11px;
}

/* Footer */
.site-footer {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-info h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.footer-parent-info {
  font-size: 0.9rem;
  color: var(--color-sub2);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.footer-nav a:hover {
  color: var(--color-main);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  font-size: 0.85rem;
  color: var(--color-sub2);
}

/* CTA Banner (Global) */
.cta-banner {
  background-color: var(--color-main);
  padding: 60px 0;
  text-align: center;
  color: var(--color-white);
}

.cta-banner h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: 1px solid var(--color-sub1);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border-color: var(--color-sub2);
}

.card-icon {
  width: 60px;
  height: 60px;
  background-color: var(--color-sub1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
  font-size: 1.5rem;
}

.card-title {
  font-size: 1.15rem;
  color: var(--color-accent);
  margin-bottom: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-feature-settings: "palt";
}

.card-text {
  font-size: 0.95rem;
  color: var(--color-text);
}

/* Property Slider */
.property-slider-wrapper {
  position: relative;
  max-width: 100%;
}

.slider-btn {
  position: absolute;
  top: calc(50% - 20px);
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-white);
  color: var(--color-accent);
  border: 1px solid var(--color-sub2);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
}

.slider-btn:hover {
  background-color: var(--color-main);
  color: var(--color-white);
  border-color: var(--color-main);
}

.slider-btn-prev {
  left: -22px;
}

.slider-btn-next {
  right: -22px;
}

.property-slider {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 40px) / 3);
  overflow-x: auto;
  gap: 20px;
  padding-bottom: 20px;
  -webkit-overflow-scrolling: touch;
  
  /* スクロールバーを隠す（IE, Edge, Firefox用） */
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* スクロールバーを隠す（Chrome, Safari用） */
.property-slider::-webkit-scrollbar {
  display: none;
}

.property-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid var(--color-sub1);
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.property-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-sub2);
}

.property-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: #f8f9fa;
}

.recommend-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: #e74c3c;
  color: white;
  padding: 5px 12px;
  font-size: 0.9rem;
  font-weight: bold;
  border-radius: 4px;
  z-index: 10;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.property-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.property-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.property-info h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--color-accent);
}

.property-info .price {
  font-size: 1.2rem;
  font-weight: bold;
  color: #e74c3c;
  margin-bottom: 15px;
}

.property-info .detail {
  font-size: 0.9rem;
  margin-bottom: 5px;
}

.property-info .detail:last-child {
  margin-bottom: 0;
}

.property-info .detail i {
  margin-right: 5px;
  color: var(--color-main);
  width: 16px;
  text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .property-slider {
    grid-auto-columns: calc((100% - 20px) / 2);
  }
}

@media (max-width: 768px) {
  .section-padding { padding: 50px 0; }
  .section-title { font-size: 1.75rem; }
  
  .menu-toggle { display: block; }
  
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    padding: 20px;
    box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 999;
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: 15px;
  }
  
  .main-nav a {
    display: block;
    width: 100%;
    text-align: center;
    padding: 10px 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .property-slider {
    grid-auto-columns: 85%;
  }
  
  .slider-btn {
    display: none;
  }
  
  .cta-banner h2 {
    font-size: 1.4rem;
  }
}