@charset "utf-8";

/* ==========================================================================
   arune Brand Design System - Strong Point & Plan Detail
   ========================================================================== */

:root {
  /* Brand Color Palette */
  --color-primary: #232628;
  --color-primary-light: #44494d;
  --color-accent-yellow: #f5dc00;
  --color-accent-yellow-dark: #deb800;
  --color-accent-soft: #fffde0;
  
  /* Backgrounds & Neutrals */
  --color-bg-base: #fbfbf9;
  --color-bg-card: #ffffff;
  --color-bg-subtle: #f5f4ef;
  --color-border: #eae8e1;
  --color-border-subtle: #f0eee8;
  
  /* Text */
  --color-text-main: #282a2c;
  --color-text-sub: #5f6368;
  --color-text-muted: #888d92;
  
  /* Elevation Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 8px 24px rgba(35, 38, 40, 0.06);
  --shadow-lg: 0 16px 40px rgba(35, 38, 40, 0.09);
  --shadow-hover: 0 14px 32px rgba(35, 38, 40, 0.12);
  
  /* Transitions & Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Outfit", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
  line-height: 1.8;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 0; /* パースを隅々まで見やすくするため角丸を完全排除 */
}

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

/* --------------------------------------------------------------------------
   Container & Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

/* --------------------------------------------------------------------------
   Top Brand Header Bar
   -------------------------------------------------------------------------- */
.brand-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 36px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-logo .logo-txt {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.brand-logo .logo-txt img {
  height: 32px;
  width: auto;
  display: block;
}

.brand-logo .logo-sub {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.brand-badge {
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background-color: var(--color-accent-soft);
  border: 1px solid #fae65a;
  padding: 5px 14px;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Hero Section (Header & Facade)
   -------------------------------------------------------------------------- */
.header {
  background-color: var(--color-bg-card);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  margin-bottom: 36px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.header .title {
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.title-top {
  margin-bottom: 24px;
}

.estate-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-transform: lowercase; /* 「arune」を大文字にせず小文字で統一 */
  margin-bottom: 8px;
}

h1 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

h1 span {
  font-family: "Outfit", sans-serif;
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  line-height: 1;
}

h1 small {
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  background: var(--color-primary);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

/* Specs / Overview Grid */
.overview {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.overview li {
  background-color: var(--color-bg-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-left: 3px solid var(--color-accent-yellow);
}

.overview li strong {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.overview li .spec-val {
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: right;
}

.overview li.price-item {
  background-color: #fffef2;
  border-left: 3px solid #deb800;
}

.overview li.price-item .spec-val {
  font-size: 1.35rem;
  color: #c9402e;
}

.overview li.price-item .spec-val .tax-note {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-muted);
  display: block;
}

/* Facade Image (角丸なしでフル表示) */
.facade {
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-subtle);
  min-height: 280px;
  border-radius: 0;
}

.facade img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0; /* 角丸なし */
  transition: var(--transition);
}

.facade:hover img {
  transform: scale(1.02);
}

.facade-tag {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background-color: rgba(35, 38, 40, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Point Badges (上段3つ、下段3つの2段構成)
   -------------------------------------------------------------------------- */
.point {
  max-width: 860px;
  margin: 0 auto 48px;
}

.point ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3列構成（3つ×2段） */
  gap: 12px 18px;
}

.point ul li {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  color: var(--color-primary);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.point ul li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-yellow);
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(245, 220, 0, 0.35);
  flex-shrink: 0;
}

/* hover効果なし（ボタンと誤認防止） */

/* --------------------------------------------------------------------------
   Main Content & Section Titles
   -------------------------------------------------------------------------- */
main {
  margin-top: 20px;
}

.section-head {
  text-align: center;
  margin-bottom: 24px;
  position: relative;
}

h2 {
  font-family: "Outfit", sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
}

h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background-color: var(--color-accent-yellow);
  margin-top: 8px;
  border-radius: 2px;
}

.section-sub {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Catch Copy Box */
.catch-box {
  background: linear-gradient(135deg, #ffffff 0%, #fffef7 100%);
  border: 1px solid #fae65a;
  border-left: 5px solid var(--color-accent-yellow);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 0 auto 36px;
  box-shadow: var(--shadow-sm);
}

.catch {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.catch-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.7;
}

.catch-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: var(--color-accent-yellow);
  color: var(--color-primary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 900;
  line-height: 1;
  position: relative;
  top: 1px;
}

/* Floor Plan (Madori) Frame - パースを見やすく直角に */
.madori-frame {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 0; /* 角丸なし */
  padding: 32px;
  box-shadow: var(--shadow-md);
  margin-bottom: 56px;
  text-align: center;
  position: relative;
}

.madori-tag {
  display: inline-block;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-sub);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.madori {
  max-width: 100%;
  width: auto;
  height: auto;
  margin: 0 auto;
  border-radius: 0; /* 間取り図も角丸なし */
}

/* --------------------------------------------------------------------------
   Swipe Guide Hint (PCでは非表示、スマホで表示)
   -------------------------------------------------------------------------- */
.swipe-guide {
  display: none;
}

/* --------------------------------------------------------------------------
   Content Cards Grid (Points 1 - 6) - パースは角を丸くせず見やすさ重視
   -------------------------------------------------------------------------- */
.content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

dl {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 0; /* パース欠け防止のためカードも直角 */
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

dl:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #d8d5cb;
}

/* Card Header (Title & Number) */
dt {
  padding: 18px 20px 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--color-border-subtle);
}

dt em {
  font-family: "Outfit", sans-serif;
  background-color: var(--color-accent-yellow);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 0.95rem;
  font-weight: 800;
  border-radius: 50%;
  font-style: normal;
  line-height: 1;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(245, 220, 0, 0.4);
}

/* Card Body */
dd {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

dd p {
  padding: 16px 20px;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-text-sub);
  flex-grow: 1;
}

.img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-bg-subtle);
  margin-top: auto;
  border-radius: 0; /* 角丸なし */
}

dd img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0; /* 角を丸くしない */
  transition: transform 0.45s ease;
}

dl:hover dd img {
  transform: scale(1.04);
}

/* スライダー用要素のデフォルト（PCでは非表示・無効化） */
.slider-viewport {
  width: 100%;
}
.slider-track {
  display: contents;
}
.slider-dots {
  display: none;
}

/* --------------------------------------------------------------------------
   Footer Action & Close Button
   -------------------------------------------------------------------------- */
.footer-action {
  text-align: center;
  padding: 40px 0 20px;
  border-top: 1px solid var(--color-border);
}

.btn-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 48px;
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.btn-close::after {
  content: "✕";
  font-size: 0.8rem;
  font-weight: 900;
  opacity: 0.7;
  transition: var(--transition);
}

.btn-close:hover {
  background-color: var(--color-accent-yellow);
  color: var(--color-primary);
  border-color: var(--color-accent-yellow);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245, 220, 0, 0.45);
}

.btn-close:hover::after {
  opacity: 1;
  transform: rotate(90deg);
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .content {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .header {
    grid-template-columns: 1fr;
  }
  
  .facade {
    min-height: 240px;
    order: -1;
  }
}

/* スマートフォン対応 (max-width: 640px) */
@media (max-width: 640px) {
  .container {
    padding: 0 16px 40px;
  }
  
  .brand-bar {
    padding: 16px 0 12px;
    margin-bottom: 24px;
  }
  
  .header .title {
    padding: 24px 20px;
  }
  
  h1 span {
    font-size: 2.4rem;
  }
  
  .point {
    margin-bottom: 36px;
  }
  
  .point ul {
    grid-template-columns: repeat(2, 1fr); /* スマホは2列×3段 */
    gap: 10px;
  }
  
  .point ul li {
    font-size: 0.82rem;
    padding: 10px 12px;
  }
  
  .catch-box {
    padding: 20px 18px;
    margin-bottom: 28px;
  }
  
  .catch-item {
    font-size: 0.94rem;
    gap: 10px;
  }
  
  .madori-frame {
    padding: 20px 16px;
    margin-bottom: 36px;
  }
  
  /* スワイプガイドヒント表示（カードの上部） */
  .swipe-guide {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: none;
    border: none;
    padding: 4px 0;
    border-radius: 0;
    margin: 0 auto 16px;
    width: fit-content;
    box-shadow: none;
    letter-spacing: 0.04em;
  }

  .swipe-guide .arrow-icon {
    display: inline-block;
    font-size: 0.9rem;
    animation: swipeBounce 1.5s infinite ease-in-out;
  }

  @keyframes swipeBounce {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
  }

  /* スマホ版 content：JSタッチスライダーによる無限ループカルーセル */
  .content {
    display: block;
    margin-left: -16px;
    margin-right: -16px;
    padding: 0;
    margin-bottom: 40px;
    position: relative;
  }

  .slider-viewport {
    width: 100%;
    overflow: hidden;
    position: relative;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    padding-bottom: 4px;
  }

  .slider-viewport:active {
    cursor: grabbing;
  }

  .slider-track {
    display: flex;
    will-change: transform;
    align-items: stretch;
  }

  .slider-track dl {
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(35, 38, 40, 0.08);
    margin-bottom: 0;
  }

  /* ドットインジケーター */
  .slider-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
  }

  .slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #dedbd3;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: var(--transition);
  }

  .slider-dot.is-active {
    width: 24px;
    border-radius: var(--radius-full);
    background-color: var(--color-accent-yellow);
    box-shadow: 0 2px 6px rgba(245, 220, 0, 0.45);
  }

  dt {
    font-size: 1rem;
    padding: 16px 18px 12px;
  }
  
  dd p {
    font-size: 0.9rem;
    padding: 14px 18px;
  }
  
  .btn-close {
    width: 100%;
    max-width: 300px;
  }
}