/* Custom CSS for FAMILIA SLIM MAISON Teaser Site */

/* ==========================================
   1. Global Variables & Color Theme
   ========================================== */
:root {
  /* Color Theme */
  --color-bg-light: #FBFaf7;        /* 上品なサンドベージュ系白 */
  --color-dark: #1F2220;            /* ブラックに近いディープオリーブグレー */
  --color-gold: #B89C65;            /* 落ち着いたゴールド */
  --color-gold-light: #DFD3BC;      /* 薄いゴールド（枠線・背景用） */
  --color-brown: #8b572a;
  --color-text: #333333;
  --dark-bg: #212529;               /* Bootstrap's bg-dark */
  --light-gold-bg: #fdfaf5;

  /* Typography */
  --font-serif-ja: 'Noto Serif JP', serif;
  --font-serif-en: 'Cormorant Garamond', serif;
  --font-sans: 'Montserrat', sans-serif;
}

/* ==========================================
   2. Base Styles & Typography
   ========================================== */
body {
  font-family: var(--font-sans), var(--font-serif-ja);
  color: var(--color-text);
  background-color: var(--color-bg-light);
  letter-spacing: 0.08em;
  line-height: 2.1;
  overflow-x: hidden;
}

h1, h2, h3, h4, .serif {
  font-family: var(--font-serif-ja);
  font-weight: 400;
}

.en-serif {
  font-family: var(--font-serif-en);
  letter-spacing: 0.15em;
}

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

/* Helper Utility Classes */
.text-gold {
  color: var(--color-gold) !important;
}
.text-gold-light {
  color: var(--color-gold-light) !important;
}
.text-brown {
  color: var(--color-brown) !important;
}
.bg-light-gold {
  background-color: var(--light-gold-bg) !important;
}

/* ==========================================
   3. Keyframe Animations
   ========================================== */
/* ヒーロー背景画像のフェードイン */
@keyframes heroBgFadeIn {
  0% {
    opacity: 0;
    transform: scale(1.08);
  }
  100% {
    opacity: 1;
    transform: scale(1.0);
  }
}

/* テキスト・要素の浮き上がりフェードイン */
@keyframes fadeUpElegant {
  0% {
    opacity: 0;
    transform: translateY(25px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ゴールド発光パルスアニメーション */
@keyframes goldPulse {
  0% {
    box-shadow: 0 0 15px rgba(184, 156, 101, 0.2);
  }
  50% {
    box-shadow: 0 0 30px rgba(184, 156, 101, 0.45);
  }
  100% {
    box-shadow: 0 0 15px rgba(184, 156, 101, 0.2);
  }
}

.fade-up {
  opacity: 0;
  animation: fadeUpElegant 1.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.delay-1 { animation-delay: 0.5s; }
.delay-2 { animation-delay: 1.1s; }
.delay-3 { animation-delay: 1.7s; }
.delay-4 { animation-delay: 2.3s; }

/* ==========================================
   4. Header & Navbar
   ========================================== */
.navbar-brand {
  letter-spacing: 1px;
}

.btn-outline-light {
  border-color: #fff;
  color: #fff;
  border-width: 2px;
}
.btn-outline-light:hover {
  background-color: #fff;
  color: var(--dark-bg);
}

/* ==========================================
   5. Hero Section
   ========================================== */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-dark);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../img/bg.jpg') no-repeat center center / cover;
  z-index: 0;
  opacity: 0;
  animation: heroBgFadeIn 2.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(31,34,32,0.45) 0%, rgba(31,34,32,0.65) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: #ffffff;
  text-align: center;
  max-width: 900px;
}

.hero-logo-img {
  max-width: 320px;
  width: 80%;
  height: auto;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.hero-title {
  font-size: clamp(1.4rem, 3vw, 2.3rem);
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 2rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* Hero Badge Style */
.hero-badge {
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  padding: 1rem 3rem;
  color: var(--color-gold-light);
  border: 1px solid var(--color-gold);
  background: rgba(31, 34, 32, 0.65);
  backdrop-filter: blur(6px);
  box-shadow: 0 0 20px rgba(184, 156, 101, 0.25);
  letter-spacing: 0.25em;
  transition: all 0.4s ease;
}

.hero-badge-pulse {
  animation: goldPulse 3.5s infinite ease-in-out;
}

/* Pre-Open Container (キャッチコピー風拡張) */
.pre-open-container {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 3rem;
  border: 1px solid var(--color-gold);
  background: rgba(15, 17, 16, 0.85);
  box-shadow: 0 0 30px rgba(184, 156, 101, 0.3);
}

.pre-open-label {
  font-family: var(--font-serif-en);
  font-size: 0.85rem;
  color: var(--color-gold);
  letter-spacing: 0.3em;
  margin-bottom: 0.3rem;
}

.pre-open-date {
  font-family: var(--font-serif-en);
  font-size: 1.8rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.15em;
  line-height: 1.2;
}

.pre-open-sub {
  font-size: 0.8rem;
  color: var(--color-gold-light);
  margin-top: 0.8rem;
  margin-bottom: 0;
  letter-spacing: 0.2em;
}

/* ==========================================
   6. Common Section Elements
   ========================================== */
.section-padding {
  padding: 8rem 0;
}

.section-title-en {
  color: var(--color-gold);
  font-size: 1rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title-ja {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  color: var(--color-dark);
  margin-bottom: 3rem;
  position: relative;
}

.divider-gold {
  width: 50px;
  height: 1px;
  background-color: var(--color-gold);
  margin: 2rem auto;
}

/* ==========================================
   7. Concept Section
   ========================================== */
.concept .img-fluid,
.greeting .img-fluid {
  height: 450px;
}

.concept-text {
  font-size: 1.05rem;
  color: #4A4A4A;
}

.img-frame {
  position: relative;
  padding: 15px;
  background: #ffffff;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}

.img-frame::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 1px solid var(--color-gold-light);
  pointer-events: none;
}

/* ==========================================
   8. Features Section
   ========================================== */
.bg-dark-luxury {
  background-color: var(--color-dark);
  color: #ffffff;
}

.features .card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.features .card:hover {
  transform: translateY(-5px);
  box-shadow: 0 1rem 3rem rgba(0,0,0,.1) !important;
}

.feature-box {
  padding: 3rem 2rem;
  border: 1px solid rgba(223, 211, 188, 0.2);
  height: 100%;
  transition: all 0.5s ease;
  background: rgba(255,255,255,0.02);
}

.feature-box:hover {
  border-color: var(--color-gold);
  background: rgba(255,255,255,0.05);
}

.feature-number {
  font-family: var(--font-serif-en);
  color: var(--color-gold);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: block;
}

/* ==========================================
   9. Message & Representative Section
   ========================================== */
.message-box {
  background-color: #ffffff;
  padding: 4rem 3rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.03);
  border-left: 3px solid var(--color-gold);
}

/* ==========================================
   10. Footer
   ========================================== */
.footer {
  background-color: #151716;
  color: #888888;
  padding: 5rem 0 3rem;
  border-top: 1px solid #2a2d2a;
}

.footer-logo-img {
  max-width: 220px;
  width: 60%;
  height: auto;
  opacity: 0.85;
}

/* ==========================================
   11. Responsive Adjustments
   ========================================== */
@media (min-width: 768px) {
  .concept .col-md-6,
  .greeting .col-md-6 {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 5rem 0;
  }
  .message-box {
    padding: 2.5rem 1.5rem;
  }
  .hero-logo-img {
    max-width: 240px;
  }
}