/* =========================================================
   MONO estate — LP draft
   Design tone (設計指示書 5.1): 暖色系ラグジュアリー
   （ベージュ・タープ・木の質感）/ ミニマル・余白重視
   ========================================================= */

:root {
  --color-cream:      #F6F1E9;
  --color-cream-soft: #EFE7D8;
  --color-taupe:       #B7A489;
  --color-taupe-dark:  #8C7A62;
  --color-brown:       #4A3B2D;
  --color-ink:         #2B241D;
  --color-gold:         #A9824A;
  --color-white:       #FFFFFF;

  --font-serif: "Shippori Mincho", "Noto Serif JP", serif;
  --font-sans:  "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-wordmark: "Cormorant Garamond", "Shippori Mincho", serif;

  --max-width: 1160px;
  --section-pad: clamp(64px, 10vw, 128px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-cream);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-brown);
  margin: 0;
  letter-spacing: 0.02em;
}

p { margin: 0 0 1em; }

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

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

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-pad) 0; }

.section-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--color-gold);
  margin-bottom: 12px;
  font-weight: 600;
}

.section-lead {
  max-width: 640px;
  color: var(--color-taupe-dark);
  margin-top: 16px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 2px;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
}

.btn-primary {
  background: var(--color-brown);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-ink); }

.btn-outline {
  background: transparent;
  border-color: var(--color-brown);
  color: var(--color-brown);
}
.btn-outline:hover { background: var(--color-brown); color: var(--color-white); }

.btn-ghost {
  background: transparent;
  border-color: var(--color-taupe);
  color: var(--color-taupe-dark);
  opacity: 0.6;
  cursor: not-allowed;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(246, 241, 233, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(74, 59, 45, 0.08);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-wordmark);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-brown);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.logo span {
  color: var(--color-gold);
  font-weight: 500;
  font-size: 0.7em;
  letter-spacing: 0.2em;
  margin-left: 2px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 3px;
  flex-shrink: 0;
}

.logo--framed {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-brown);
  padding: 10px 26px 14px;
  position: relative;
  line-height: 1.3;
  gap: 0;
}
.logo--framed::before,
.logo--framed::after {
  content: "";
  position: absolute;
  bottom: -1px;
  height: 2px;
  width: 12%;
  background: var(--color-gold);
}
.logo--framed::before { left: 30%; }
.logo--framed::after { left: 58%; }

.footer-logo.logo--framed { border-color: var(--color-cream); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.9rem;
}

.main-nav a { color: var(--color-brown); position: relative; }
.main-nav a:not(.nav-cta):after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 1px;
  background: var(--color-gold);
  transition: width 0.25s ease;
}
.main-nav a:not(.nav-cta):hover:after { width: 100%; }

.nav-cta {
  border: 1px solid var(--color-brown);
  padding: 8px 18px;
  border-radius: 2px;
}
.nav-cta:hover { background: var(--color-brown); color: var(--color-white); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-taupe-dark);
}
.lang-switch button {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-sans); font-size: 0.75rem;
  color: var(--color-taupe-dark); padding: 2px;
}
.lang-current { color: var(--color-brown); font-weight: 700; }
.lang-item[disabled] { opacity: 0.4; cursor: not-allowed; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  display: block; height: 1px; width: 100%;
  background: var(--color-brown);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(43, 36, 29, 0.6) 0%, rgba(43, 36, 29, 0.4) 45%, rgba(246, 241, 233, 1) 100%),
    radial-gradient(circle at 20% 20%, rgba(169, 130, 74, 0.25), transparent 55%),
    url("../assets/images/hero.jpg") center 60% / cover no-repeat;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 140px 24px 0;
  color: var(--color-white);
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--color-cream-soft);
  margin-bottom: 20px;
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.35;
  margin-bottom: 24px;
}

.hero-lead {
  max-width: 520px;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 40px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero .btn-outline { border-color: var(--color-white); color: var(--color-white); }
.hero .btn-outline:hover { background: var(--color-white); color: var(--color-brown); }

.scroll-cue {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-cue span {
  display: block;
  width: 1px; height: 48px;
  background: rgba(255,255,255,0.6);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.about-media {
  aspect-ratio: 4 / 5;
  border-radius: 2px;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.12), transparent 60%),
    url("../assets/images/about.jpg") center / cover no-repeat;
}

.about-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about-points li {
  padding-left: 28px;
  position: relative;
  color: var(--color-brown);
}
.about-points li:before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 14px; height: 1px;
  background: var(--color-gold);
}

/* ===== Areas ===== */
.areas { background: var(--color-cream-soft); }

.area-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.area-card {
  background: var(--color-white);
  padding-bottom: 24px;
  border-radius: 2px;
  overflow: hidden;
}

.area-media {
  aspect-ratio: 1 / 1;
  margin-bottom: 20px;
}
.area-media--tokyo     { background: url("../assets/images/area-tokyo.jpg") center / cover no-repeat; }
.area-media--hokkaido  { background: url("../assets/images/area-hokkaido.jpg") center / cover no-repeat; }
.area-media--karuizawa { background: url("../assets/images/area-karuizawa.jpg") center / cover no-repeat; }
.area-media--other     { background: url("../assets/images/area-other.jpg") center / cover no-repeat; }

.area-card h3 { padding: 0 20px; margin-bottom: 8px; font-size: 1.15rem; }
.area-card p { padding: 0 20px; margin: 0; color: var(--color-taupe-dark); font-size: 0.92rem; }

/* ===== Properties ===== */
.property-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.property-card {
  background: var(--color-white);
  border: 1px solid rgba(74,59,45,0.08);
}

.property-media {
  aspect-ratio: 4 / 3;
  position: relative;
}
.property-media--1 { background: url("../assets/images/property-1.jpg") center / cover no-repeat; }
.property-media--2 { background: url("../assets/images/property-2.jpg") center / cover no-repeat; }
.property-media--3 { background: url("../assets/images/property-3.jpg") center 78% / cover no-repeat; }

.property-tag {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(255,255,255,0.92);
  color: var(--color-brown);
  font-size: 0.75rem;
  padding: 6px 14px;
  letter-spacing: 0.05em;
}

.property-body { padding: 24px; }

.property-price {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-gold);
  margin-bottom: 8px;
}

.property-body h3 { font-size: 1.1rem; margin-bottom: 8px; }

.property-meta { color: var(--color-taupe-dark); font-size: 0.9rem; margin-bottom: 16px; }

.property-link { color: var(--color-brown); font-size: 0.9rem; border-bottom: 1px solid var(--color-gold); padding-bottom: 2px; }

.properties-more { margin-top: 48px; text-align: center; }

/* ===== Portal ===== */
.portal { background: var(--color-brown); }
.portal h2 { color: var(--color-white); }
.portal .section-eyebrow { color: var(--color-taupe); }
.portal-copy { max-width: 640px; color: rgba(255,255,255,0.85); }
.portal-note { font-size: 0.85rem; color: rgba(255,255,255,0.6); }
.portal .btn-outline { border-color: rgba(255,255,255,0.6); color: var(--color-white); }
.portal .btn-outline:hover { background: var(--color-white); color: var(--color-brown); }

.portal-dashboard { max-width: none; }
.portal-dashboard .property-grid { margin-top: 40px; }

/* ===== Login Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(43, 36, 29, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay[hidden] { display: none; }

.modal {
  position: relative;
  background: var(--color-cream);
  max-width: 440px;
  width: 100%;
  padding: 40px;
  border-radius: 2px;
}

.login-modal .section-eyebrow { margin-bottom: 8px; }
.login-modal h2 { margin-bottom: 24px; }

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-taupe-dark);
}
.modal-close:hover { color: var(--color-brown); }

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.login-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-brown);
}
.login-form input {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid rgba(74,59,45,0.25);
  background: var(--color-white);
  border-radius: 2px;
  color: var(--color-ink);
}
.login-form input:focus {
  outline: none;
  border-color: var(--color-gold);
}
.login-form .btn { align-self: flex-start; }

.form-error {
  font-size: 0.85rem;
  color: #A8433A;
  margin: -8px 0 0;
}
.form-error[hidden] { display: none; }

/* ===== Contact ===== */
.contact { position: relative; overflow: hidden; }
.contact-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-soft) 100%);
  z-index: 0;
}
.contact-inner { position: relative; z-index: 1; }
.contact-lead { margin-bottom: 40px; }

.contact-form {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-brown);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid rgba(74,59,45,0.25);
  background: var(--color-white);
  border-radius: 2px;
  color: var(--color-ink);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}

.form-full { grid-column: 1 / -1; }

.contact-form .btn { align-self: flex-start; }

.form-note { font-size: 0.75rem; color: var(--color-taupe-dark); }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.7);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}

.footer-logo { color: var(--color-white); margin-bottom: 12px; }
.footer-desc { font-size: 0.9rem; max-width: 280px; }

.footer-col h4 {
  font-family: var(--font-sans);
  color: var(--color-white);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.65);
}
.footer-col a:hover { color: var(--color-gold); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}
.footer-legal-links a:hover { color: var(--color-gold); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-media { aspect-ratio: 16 / 9; order: -1; }
  .area-grid { grid-template-columns: repeat(2, 1fr); }
  .property-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav, .lang-switch { display: none; }
  .nav-toggle { display: flex; }

  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-cream);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(74,59,45,0.1);
  }

  .form-row { grid-template-columns: 1fr; }
  .area-grid { grid-template-columns: 1fr 1fr; }
  .property-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}