/* ===========================
   アットライフ株式会社 - CSS
   カラー：赤×黒
   =========================== */

:root {
  --red: #C9956B;          /* キャラメルブラウン（メインカラー） */
  --red-dark: #A77849;     /* ダーク */
  --red-light: #DDB088;    /* ライト */
  --red-rgb: 201, 149, 107;
  --black: #2D241C;        /* ウォームブラック（ややブラウン寄り） */
  --black-light: #3A2F25;
  --gray-900: #4A3F35;
  --gray-800: #5A4E42;
  --gray-700: #6B5F52;
  --gray-600: #8A7F73;
  --gray-400: #B5AC9F;
  --gray-300: #D4CDC1;
  --gray-200: #ECE6DC;
  --gray-100: #F8F4ED;     /* クリーム背景 */
  --white: #FFFFFF;
  --font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --transition: 0.3s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: var(--font); color: var(--gray-800); line-height: 1.8; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

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

/* ===========================
   Navigation
   =========================== */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(45,36,28,0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
#header.scrolled { background: rgba(45,36,28,0.98); }

.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.logo { display: flex; align-items: baseline; font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em; }
.logo-at { color: var(--red); }
.logo-life { color: var(--white); }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: rgba(255,255,255,0.8); font-size: 0.85rem; font-weight: 500; transition: var(--transition); letter-spacing: 0.02em; }
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--red); color: var(--white) !important; padding: 8px 20px;
  border-radius: 100px; font-weight: 700; transition: var(--transition);
}
.nav-cta:hover { background: var(--red-light); transform: translateY(-1px); }

.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); margin: 5px 0; transition: var(--transition); border-radius: 2px; }

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    linear-gradient(135deg, rgba(45,36,28,0.78) 0%, rgba(58,47,37,0.72) 50%, rgba(45,36,28,0.85) 100%),
    url("../images/empty_room.jpg") center/cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201,149,107,0.25) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(201,149,107,0.15) 0%, transparent 50%);
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content { position: relative; z-index: 2; text-align: center; padding: 0 24px; }
.hero-sub {
  color: var(--red); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; margin-bottom: 16px;
}
.hero-title {
  color: var(--white); font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 900;
  line-height: 1.3; margin-bottom: 24px; letter-spacing: -0.02em;
}
.hero-desc { color: rgba(255,255,255,0.75); font-size: 1.05rem; line-height: 1.8; margin-bottom: 40px; }
.hero-desc strong { color: var(--red-light); font-size: 1.3em; }

.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px;
  border-radius: 100px; font-size: 0.95rem; font-weight: 700; transition: var(--transition);
  cursor: pointer; border: none; font-family: var(--font);
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,149,107,0.3); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.05); }
.btn-full { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }

.hero-scroll { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); text-align: center; z-index: 2; }
.hero-scroll span { color: rgba(255,255,255,0.4); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; }
.scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent); margin: 8px auto 0; animation: scrollDown 2s infinite; }
@keyframes scrollDown { 0%,100% { opacity: 0.4; transform: scaleY(1); } 50% { opacity: 1; transform: scaleY(1.3); } }

/* ===========================
   Stats
   =========================== */
.stats { background: var(--red); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-number { font-size: 2.5rem; font-weight: 900; color: var(--white); }
.stat-unit { font-size: 1.2rem; font-weight: 700; color: rgba(255,255,255,0.9); }
.stat-label { color: rgba(255,255,255,0.85); font-size: 0.85rem; margin-top: 4px; }

/* ===========================
   Section Common
   =========================== */
.section { padding: 100px 0; }
.section-dark { background: var(--gray-100); }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; color: var(--red); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 12px;
}
.section-title { font-size: 2rem; font-weight: 900; color: var(--black); letter-spacing: -0.02em; }
.section-desc { color: var(--gray-600); margin-top: 12px; }

/* ===========================
   About
   =========================== */
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-text h3 { font-size: 1.5rem; font-weight: 900; color: var(--black); margin-bottom: 20px; line-height: 1.5; }
.about-text p { color: var(--gray-700); margin-bottom: 16px; }
.about-text strong { color: var(--red); }

.about-features { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; }
.about-feature { display: flex; align-items: center; gap: 16px; }
.feature-icon {
  width: 48px; height: 48px; background: rgba(201,149,107,0.08); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--red);
}
.about-feature strong { display: block; font-size: 0.95rem; color: var(--black); }
.about-feature span { font-size: 0.82rem; color: var(--gray-600); }

.about-image img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover;
  border-radius: 16px; box-shadow: var(--shadow-lg);
}

/* ===========================
   Services
   =========================== */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.service-card {
  background: var(--white); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition);
  border: 1px solid var(--gray-200);
  display: flex; flex-direction: column;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-image { aspect-ratio: 16/10; overflow: hidden; }
.service-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.service-card:hover .service-image img { transform: scale(1.05); }
.service-card > h3,
.service-card > p,
.service-card > .service-list { padding-left: 32px; padding-right: 32px; }
.service-card > h3 { padding-top: 24px; }
.service-card > .service-list { padding-bottom: 32px; }
.service-icon { color: var(--red); margin-bottom: 20px; }
.service-card h3 { font-size: 1.2rem; font-weight: 900; color: var(--black); margin-bottom: 12px; }
.service-card p { font-size: 0.9rem; color: var(--gray-700); margin-bottom: 20px; }
.service-list { display: flex; flex-direction: column; gap: 8px; }
.service-list li {
  font-size: 0.85rem; color: var(--gray-700); padding-left: 20px; position: relative;
}
.service-list li::before {
  content: ''; position: absolute; left: 0; top: 10px; width: 8px; height: 8px;
  background: var(--red); border-radius: 50%;
}

/* ===========================
   Price
   =========================== */
.price-category { margin-bottom: 48px; }
.price-category-title {
  display: flex; align-items: center; gap: 12px;
  font-size: 1.2rem; font-weight: 900; color: var(--black); margin-bottom: 20px;
  padding-bottom: 12px; border-bottom: 2px solid var(--red);
}
.price-category-icon { color: var(--red); display: flex; }

.price-table-wrap { overflow-x: auto; }
.price-table { width: 100%; border-collapse: collapse; }
.price-table thead { background: var(--black); }
.price-table th {
  padding: 14px 20px; color: var(--white); font-size: 0.85rem; font-weight: 700;
  text-align: left; letter-spacing: 0.05em;
}
.price-table td {
  padding: 16px 20px; border-bottom: 1px solid var(--gray-200); font-size: 0.95rem;
}
.price-table tbody tr:hover { background: rgba(201,149,107,0.03); }
.price-table td strong { color: var(--black); }
.price-note { display: block; font-size: 0.75rem; color: var(--gray-600); margin-top: 2px; }
.price-value { white-space: nowrap; }
.price-number { font-size: 1.3rem; font-weight: 900; color: var(--red); }
.price-notice { font-size: 0.82rem; color: var(--gray-600); margin-top: 24px; text-align: center; }

/* ===========================
   Flow
   =========================== */
.flow-steps { max-width: 700px; margin: 0 auto; position: relative; }
.flow-steps::before {
  content: ''; position: absolute; left: 32px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--red), var(--gray-300));
}
.flow-step { display: flex; gap: 32px; margin-bottom: 48px; position: relative; }
.flow-step:last-child { margin-bottom: 0; }
.flow-step-number {
  width: 64px; height: 64px; background: var(--red); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 1.1rem; font-weight: 900; flex-shrink: 0;
  position: relative; z-index: 1; box-shadow: 0 4px 16px rgba(201,149,107,0.3);
}
.flow-step-content { padding-top: 12px; }
.flow-step-content h3 { font-size: 1.1rem; font-weight: 900; color: var(--black); margin-bottom: 8px; }
.flow-step-content p { font-size: 0.9rem; color: var(--gray-700); }

/* ===========================
   Company
   =========================== */
.company-table-wrap { max-width: 700px; margin: 0 auto 48px; }
.company-table { width: 100%; border-collapse: collapse; }
.company-table th {
  width: 140px; padding: 16px 20px; background: var(--gray-100); font-size: 0.9rem;
  font-weight: 700; color: var(--black); text-align: left; vertical-align: top;
  border-bottom: 1px solid var(--gray-200);
}
.company-table td {
  padding: 16px 20px; font-size: 0.9rem; color: var(--gray-700);
  border-bottom: 1px solid var(--gray-200);
}
.company-table a { color: var(--red); font-weight: 500; }
.company-table a:hover { text-decoration: underline; }

.company-map { max-width: 700px; margin: 0 auto; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.company-map iframe { display: block; }

/* ===========================
   Contact
   =========================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-card {
  display: flex; gap: 20px; padding: 24px; background: var(--white);
  border-radius: 12px; box-shadow: var(--shadow);
}
.contact-card-icon {
  width: 56px; height: 56px; background: rgba(201,149,107,0.08); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--red);
}
.contact-card h4 { font-size: 0.85rem; color: var(--gray-600); margin-bottom: 4px; }
.contact-phone { font-size: 1.4rem; font-weight: 900; color: var(--black); }
.contact-phone:hover { color: var(--red); }
.contact-email { font-size: 1rem; font-weight: 700; color: var(--red); }
.contact-email:hover { text-decoration: underline; }
.contact-card p { font-size: 0.78rem; color: var(--gray-400); margin-top: 4px; }

.contact-form-wrap { background: var(--white); border-radius: 16px; padding: 40px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 700; color: var(--black); margin-bottom: 6px; }
.required { color: var(--red); font-size: 0.75rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--gray-300); border-radius: var(--radius);
  font-family: var(--font); font-size: 0.95rem; color: var(--gray-800); transition: var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(201,149,107,0.1);
}
.form-group textarea { resize: vertical; }

.form-status { margin-top: 16px; font-size: 0.9rem; text-align: center; min-height: 1.4em; }
.form-status.is-success { color: #2d7a4f; background: #e6f5ec; padding: 12px; border-radius: 8px; }
.form-status.is-error { color: #b03a2e; background: #fbeae8; padding: 12px; border-radius: 8px; }

/* ===========================
   Footer
   =========================== */
.footer { background: var(--black); padding: 48px 0 0; color: rgba(255,255,255,0.6); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand p { font-size: 0.82rem; margin-top: 12px; line-height: 1.8; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 0.85rem; transition: var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-bottom { text-align: center; padding: 20px 0; }
.footer-bottom p { font-size: 0.78rem; }

/* ===========================
   Back to Top
   =========================== */
.back-to-top {
  position: fixed; bottom: 24px; right: 24px; width: 48px; height: 48px;
  background: var(--red); color: var(--white); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(201,149,107,0.4); opacity: 0; visibility: hidden;
  transition: var(--transition); z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--red-light); transform: translateY(-2px); }

/* ===========================
   Animations
   =========================== */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===========================
   Responsive
   =========================== */
.sp-only { display: none; }

@media (max-width: 900px) {
  .sp-only { display: block; }
  .nav-links {
    display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
    background: rgba(45,36,28,0.98); flex-direction: column; align-items: center;
    justify-content: center; gap: 32px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.1rem; }
  .hamburger { display: block; }
  .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .about-content { grid-template-columns: 1fr; gap: 32px; }
  .about-image { order: -1; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-links { gap: 16px; }

  .section { padding: 72px 0; }
  .section-title { font-size: 1.6rem; }
  .hero-title { font-size: 2rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-number { font-size: 2rem; }
  .service-card { padding: 28px 24px; }
  .contact-form-wrap { padding: 24px; }
  .flow-step { gap: 20px; }
  .flow-step-number { width: 48px; height: 48px; font-size: 0.9rem; }
  .flow-steps::before { left: 23px; }
  .hero-buttons { flex-direction: column; align-items: center; }
}