/* ============================================================
   Left Field Estate — Brand stylesheet
   Design tokens from brand-kit.jsx, ported to a single CSS.
   ============================================================ */

:root {
  --paper:     #f6f5f0;
  --paper-alt: #e7e3d6;
  --paper-dk:  #d9d4c2;
  --ink-deep:  #0e1813;
  --ink:       #16221c;
  --ink-soft:  #5d6b62;
  --ink-mute:  #8a948c;
  --forest:    #1f4d3a;
  --forest-dk: #13322a;
  --line:      rgba(22, 34, 28, 0.133); /* #16221c22 */

  /* コンテンツ最大幅。広い画面ではこの幅を超えた分を左右に振り分けて中央寄せ */
  --content-max: 1280px;

  --font-jp:      'Shippori Mincho', 'Noto Serif JP', serif;
  --font-jp-body: 'Noto Sans JP', sans-serif;
  --font-en:      'Cormorant Garamond', 'Times New Roman', serif;
  --font-mono:    'Courier Prime', ui-monospace, monospace;
}

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-jp-body);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }
input, textarea, select { font-family: inherit; }
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--forest);
  outline-offset: 2px;
}
a { color: inherit; }

/* ---- Layout primitives ---- */
.lf-pad     { padding-inline: clamp(20px, 5vw, 56px); }
.lf-section { padding-block:  clamp(60px, 9vw, 130px); }

/* ---- 最大幅コンテナ（全ページ適用）----
   背景帯はセクションいっぱい（端から端まで）のまま、中身だけを
   --content-max の中央カラムに収める。左右の余白は
   「通常の clamp ガター」と「画面超過分の半分」の大きい方を採用。
   .lf-pad は header / pagehero / 各 section / footer すべてに付くため、
   このルール1つで全ページのコンテンツが中央寄せになる。 */
.lf-pad {
  padding-inline: max(clamp(20px, 5vw, 56px), calc((100% - var(--content-max)) / 2));
}
/* ヒーローは絶対配置。中央カラムに合わせて配置し直す */
body.home .lf-hero-content {
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--content-max);
  padding-inline: clamp(20px, 5vw, 56px);
}
/* ヒーロー右下の SCROLL 表示も中央カラムの右端に揃える */
body.home .lf-hero-scroll {
  padding-inline: max(clamp(20px, 5vw, 56px), calc((100% - var(--content-max)) / 2));
}

/* ---- Typography scale ---- */
.lf-h1 { font-size: clamp(40px, 6.5vw, 84px); line-height: 1.1;  letter-spacing: 0.01em; margin: 0; }
.lf-h2 { font-size: clamp(28px, 4vw, 48px);   line-height: 1.15; margin: 0; }
.lf-h3 { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.25; margin: 0; }
.lf-eyebrow {
  font-family: var(--font-mono);
  font-size: clamp(10px, 0.9vw, 11px);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-block;
}
.lf-eyebrow.is-paper { color: var(--paper); opacity: 0.6; }
.lf-eyebrow.is-forest { color: var(--forest); }

/* Heading helpers */
.lf-jp-heading { font-family: var(--font-jp); font-weight: 500; color: var(--ink); }
.lf-en-italic  { font-family: var(--font-en); font-style: italic; font-weight: 400; }
.lf-accent     { color: var(--forest); }

/* ---- Grids ---- */
.lf-grid-3      { display: grid; gap: clamp(20px, 2.6vw, 36px); grid-template-columns: repeat(3, 1fr); }
.lf-grid-2      { display: grid; gap: clamp(20px, 2.6vw, 36px); grid-template-columns: 1fr 1fr; }
.lf-grid-info   { display: grid; gap: clamp(28px, 4vw, 80px);  grid-template-columns: 260px 1fr; align-items: start; }
.lf-grid-form   { display: grid; gap: clamp(28px, 4vw, 80px);  grid-template-columns: 1fr 1.4fr; align-items: start; }
.lf-grid-msg    { display: grid; gap: clamp(28px, 4vw, 70px);  grid-template-columns: minmax(260px, 380px) 1fr; align-items: start; }
.lf-grid-loc    { display: grid; gap: clamp(20px, 2.6vw, 36px); grid-template-columns: repeat(3, 1fr); }
.lf-hero-grid   { display: grid; gap: clamp(24px, 4vw, 64px);  grid-template-columns: 1.4fr 1fr; align-items: end; }
.lf-philosophy  { display: grid; gap: clamp(28px, 4vw, 80px);  grid-template-columns: 1fr 2fr; }
.lf-portfolio   { display: grid; gap: clamp(20px, 2.6vw, 36px); grid-template-columns: 1.4fr 1fr; }
.lf-criteria    { display: grid; gap: clamp(28px, 4vw, 80px);  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.3fr); align-items: start; }
.lf-footer-grid { display: grid; gap: clamp(24px, 3vw, 40px);  grid-template-columns: 1.4fr 1fr 1fr 1fr; }

/* ラベル + 値 の表組み行（about / group / contact）。SP では縦積み */
.lf-row-info {
  display: grid;
  grid-template-columns: minmax(120px, 200px) 1fr;
  gap: clamp(16px, 3vw, 32px);
  padding-block: clamp(16px, 2vw, 22px);
  align-items: baseline;
}
.lf-row-info > .lf-row-info-label {
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.1em;
}
.lf-row-info > .lf-row-info-value {
  font-family: var(--font-jp-body);
  font-size: 14px;
  color: var(--ink);
  line-height: 1.85;
  white-space: pre-line;
}

@media (max-width: 980px) {
  .lf-grid-3, .lf-grid-2, .lf-grid-info, .lf-grid-form, .lf-grid-msg,
  .lf-grid-loc, .lf-hero-grid, .lf-philosophy, .lf-portfolio,
  .lf-criteria, .lf-footer-grid {
    grid-template-columns: 1fr;
  }
  .lf-nav-desktop { display: none !important; }
  .lf-hero-meta { flex-direction: column; align-items: flex-start; gap: 18px; }
}
@media (max-width: 720px) {
  .lf-row-info {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-block: 18px;
  }
  .lf-row-info > .lf-row-info-label {
    color: var(--ink-soft);
    font-size: 12px;
    letter-spacing: 0.18em;
  }
}
@media (max-width: 720px) {
  .lf-hide-sm   { display: none !important; }
  .lf-stack-sm  { flex-direction: column !important; align-items: flex-start !important; }
  .lf-info-table{ font-size: 13px; }
}

/* ---- Header ---- */
.lf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 26px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.lf-header.is-overlay {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  background: transparent;
  border-bottom: none;
}

/* ---- フローティングヘッダー（JS が複製・制御。PC のみ表示）---- */
.lf-header-float {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding-block: 14px;            /* 先頭ヘッダー(26px)よりやや薄く */
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 18px rgba(14, 24, 19, 0.07);
  transform: translateY(-100%);   /* 既定は画面外に隠す */
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.lf-header-float.is-visible { transform: translateY(0); }
@media (max-width: 980px) {
  /* モバイルはナビ非表示のため、フローティングも出さない */
  .lf-header-float { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .lf-header-float { transition: none; }
}
.lf-nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 32px);
}
.lf-nav-links a {
  font-family: var(--font-jp-body);
  font-weight: 500;
  font-size: 13;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink);
  opacity: 0.85;
  text-decoration: none;
  cursor: pointer;
  padding-bottom: 4px;
}
.lf-nav-links a.is-current {
  color: var(--forest);
  opacity: 1;
  border-bottom: 1px solid var(--forest);
}
.lf-header.is-overlay .lf-nav-links a { color: var(--paper); }
.lf-header.is-overlay .lf-nav-links a.is-current {
  color: var(--paper);
  border-bottom: 1px solid var(--paper);
}
.lf-nav-divider {
  width: 1px; height: 14px; background: var(--ink); opacity: 0.4;
}
.lf-header.is-overlay .lf-nav-divider { background: var(--paper); }
.lf-lang {
  font-family: var(--font-jp-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  opacity: 0.85;
}
.lf-header.is-overlay .lf-lang { color: var(--paper); }
.lf-lang .lf-en-mute {
  opacity: 0.5;
  font-family: var(--font-en);
  font-style: italic;
}

/* ---- Wordmark ---- */
.lf-wordmark {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--ink);
}
.lf-wordmark.is-compact { gap: 12px; }
.lf-wordmark .lf-wm-text { line-height: 1; }
.lf-wordmark .lf-wm-en {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: inherit;
}
.lf-wordmark.is-compact .lf-wm-en { font-size: 18px; }
.lf-wordmark .lf-wm-jp {
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: inherit;
  opacity: 0.7;
  margin-top: 6px;
}
.lf-wordmark.is-compact .lf-wm-jp { font-size: 9px; }
.lf-header.is-overlay .lf-wordmark { color: var(--paper); }
.lf-wordmark .lf-mark { flex-shrink: 0; }

/* ---- PageHero ---- */
.lf-pagehero {
  background: var(--paper);
  padding-block: clamp(60px, 8vw, 110px);
  border-bottom: 1px solid var(--line);
}
.lf-pagehero .lf-h1 { color: var(--ink); text-wrap: balance; }
.lf-pagehero .lf-lead {
  font-family: var(--font-jp-body);
  font-size: clamp(14px, 1.25vw, 17px);
  line-height: 2.0;
  color: var(--ink);
  opacity: 0.78;
  margin: 0;
  padding-bottom: 16px;
  letter-spacing: 0.04em;
  max-width: 480px;
}

/* ---- Photo placeholder (radial gradients) ---- */
.lf-photo {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
}
.lf-photo[data-ratio="4/3"] { aspect-ratio: 4 / 3; }
.lf-photo[data-ratio="4/5"] { aspect-ratio: 4 / 5; }
.lf-photo::after {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 8px);
  pointer-events: none;
}
.lf-photo[data-tone="warm"] {
  background:
    radial-gradient(ellipse at 30% 20%, #9a8d72 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, #5e553f 0%, transparent 60%),
    linear-gradient(180deg, #7a6e58 0%, #5e553f 100%);
}
.lf-photo[data-tone="cool"] {
  background:
    radial-gradient(ellipse at 30% 20%, #7a8a86 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, #3f4e4a 0%, transparent 60%),
    linear-gradient(180deg, #5e6f6a 0%, #3f4e4a 100%);
}
.lf-photo[data-tone="deep"] {
  background:
    radial-gradient(ellipse at 30% 20%, #324a40 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, #13322a 0%, transparent 60%),
    linear-gradient(180deg, #23362e 0%, #13322a 100%);
}
.lf-photo[data-tone="paper"] {
  background:
    radial-gradient(ellipse at 30% 20%, #cfc9b5 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, #9a937e 0%, transparent 60%),
    linear-gradient(180deg, #b8b09c 0%, #9a937e 100%);
}
.lf-photo .lf-photo-label {
  position: absolute;
  left: 16px; bottom: 14px;
  color: var(--paper);
  opacity: 0.85;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  z-index: 1;
}
.lf-photo .lf-photo-label .lf-photo-sub {
  display: block;
  margin-top: 2px;
  opacity: 0.7;
  text-transform: none;
  letter-spacing: 0.3em;
}

/* ---- Buttons ---- */
.lf-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 16px 24px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.lf-btn-primary  { background: var(--paper);   color: var(--ink); }
.lf-btn-ghost    { background: transparent;    color: var(--paper); border: 1px solid var(--paper); }
.lf-btn-dark     { background: var(--ink);     color: var(--paper); padding: 18px 28px; }
.lf-btn-darkghost{ background: transparent;    color: var(--ink);   border: 1px solid var(--ink); padding: 18px 28px; }
.lf-btn-disabled { opacity: 0.5; pointer-events: none; }

/* ---- Footer ---- */
.lf-footer {
  background: var(--forest-dk);
  color: var(--paper);
  padding-block: 70px 30px;
}
.lf-footer .lf-wordmark { color: var(--paper); }
.lf-footer .lf-footer-desc {
  font-family: var(--font-jp-body);
  font-size: 12px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.65;
  margin-top: 22px;
  max-width: 320px;
}
.lf-footer-col-title {
  font-family: var(--font-mono);
  font-size: clamp(10px, 0.9vw, 11px);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--paper);
  opacity: 0.6;
  display: inline-block;
}
.lf-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lf-footer-col a, .lf-footer-col li {
  font-family: var(--font-jp-body);
  font-size: 12px;
  color: var(--paper);
  opacity: 0.85;
  text-decoration: none;
  cursor: pointer;
}
.lf-footer-col a:hover { opacity: 1; }
.lf-footer-bottom {
  border-top: 1px solid rgba(246, 245, 240, 0.13);
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--paper);
  opacity: 0.55;
}

/* ---- Form ---- */
.lf-input, .lf-textarea, .lf-select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-family: var(--font-jp-body);
  font-size: 14px;
  color: var(--ink);
}
.lf-textarea { resize: vertical; }
.lf-field { display: flex; flex-direction: column; gap: 8px; }
.lf-field-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.1em;
}
.lf-required {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--forest);
}
.lf-hint {
  font-family: var(--font-jp-body);
  font-size: 11px;
  color: var(--ink-mute);
}

/* Radio-style chip group */
.lf-chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.lf-chip {
  display: inline-block;
  font-family: var(--font-jp-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}
.lf-chip input { display: none; }
.lf-chip:has(input:checked),
.lf-chip.is-active {
  background: var(--ink);
  color: var(--paper);
}

/* ---- Hero (HOME) ---- */
.lf-hero {
  position: relative;
  min-height: min(820px, 92vh);
  color: var(--paper);
  overflow: hidden;
  background: var(--forest-dk);
}
.lf-hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 25% 30%, #2c5847 0%, transparent 60%),
    radial-gradient(ellipse at 80% 70%, #0a1f17 0%, transparent 55%),
    linear-gradient(180deg, #1a3329 0%, #0a1812 100%);
}
/* 動画は .lf-hero-bg の上に重ねる。動画ファイルが無いときは背景グラデが透けて見える */
.lf-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  pointer-events: none;
}
.lf-hero-grain {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
}
.lf-hero-vignette {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0) 30%, rgba(0,0,0,0.55) 100%);
}
.lf-hero-content {
  position: absolute;
  bottom: clamp(70px, 10vw, 130px);
  left: clamp(20px, 5vw, 56px);
  right: clamp(20px, 5vw, 56px);
  max-width: 820px;
  z-index: 2;
}
.lf-hero-h1 {
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: clamp(42px, 7.2vw, 92px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 20px 0 0;
  color: var(--paper);
}
.lf-hero-lead {
  font-family: var(--font-jp-body);
  font-size: clamp(13px, 1.1vw, 15px);
  line-height: 1.9;
  max-width: 560px;
  margin-top: 24px;
  color: var(--paper);
  opacity: 0.85;
}
.lf-hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.lf-hero-scroll {
  position: absolute;
  left: 0; right: 0; bottom: 32px;
  padding-inline: clamp(20px, 5vw, 56px);
  display: flex;
  justify-content: flex-end;
  color: var(--paper);
  z-index: 2;
}
.lf-hero-scroll-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0.7;
}
.lf-hero-scroll-line {
  display: inline-block;
  width: 1px; height: 28px;
  background: var(--paper);
}

/* ---- Modal (Coming Soon) ---- */
.lf-modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(14, 24, 19, 0.78);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  animation: lfFadeIn 0.4s ease;
}
.lf-modal[hidden] { display: none; }
.lf-modal-panel {
  background: var(--paper);
  color: var(--ink);
  max-width: 560px;
  width: 100%;
  padding: clamp(40px, 6vw, 72px) clamp(28px, 5vw, 64px);
  position: relative;
  animation: lfRise 0.5s ease;
  border: 1px solid var(--ink);
}
.lf-modal-close {
  position: absolute; top: 16px; right: 16px;
  background: transparent; border: none; cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink);
  padding: 8px 12px;
}
@keyframes lfFadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes lfRise   { from { opacity: 0; transform: translateY(20px) } to { opacity: 1; transform: translateY(0) } }

/* ---- Property cards ---- */
.lf-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.lf-status-dot {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--forest);
}
.lf-status-dot.is-soft { color: var(--ink-soft); }

/* ---- Helpers ---- */
.lf-divider { border-top: 1px solid var(--line); }
.lf-divider-ink { border-top: 1px solid var(--ink); }
.lf-text-jpbody { font-family: var(--font-jp-body); }
.lf-text-mono   { font-family: var(--font-mono); }
.lf-text-en     { font-family: var(--font-en); }
.lf-text-soft   { color: var(--ink-soft); }
.lf-text-mute   { color: var(--ink-mute); }
.lf-text-paper  { color: var(--paper); }

/* center container helpers */
.lf-center { text-align: center; }
.lf-mx-auto { margin-inline: auto; }

/* spacing helpers */
.lf-mt-4  { margin-top: 16px; }
.lf-mt-5  { margin-top: 20px; }
.lf-mt-6  { margin-top: 24px; }
.lf-mt-8  { margin-top: 32px; }
.lf-mt-10 { margin-top: 40px; }