/* 提案ページ（vexia の入口）。配色は vexia（~/vexia/src/styles/index.css）に合わせる。暗い暖色の地に橙 */
:root {
  --bg: #140d0a; --bg-2: #1a110c; --surface: #160f0b; --surface-2: #1d130d; --surface-deep: #0f0a07;
  --primary: #ff6a3d; --primary-hover: #ff8551; --secondary: #ffd166;
  --ink-strong: #fbf3ec; --ink: #f6ede5; --ink-muted: #a89386; --ink-faint: #8a7064;
  --border: rgba(255, 160, 110, .16); --border-strong: rgba(255, 160, 110, .28);
  --on-primary: #1a0d06;
  --font-display: "Space Grotesk", "Zen Kaku Gothic New", sans-serif;
  --font-sans: "Zen Kaku Gothic New", -apple-system, "Hiragino Kaku Gothic ProN", sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: var(--bg); -webkit-text-size-adjust: 100%; line-break: strict; }
@supports (word-break: auto-phrase) { html, body { word-break: auto-phrase; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-sans); font-weight: 400;
  line-height: 1.9; letter-spacing: .02em; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
.wrap { width: 100%; max-width: 1080px; margin-inline: auto; padding-inline: 20px; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
img { max-width: 100%; display: block; }

.eyebrow { font-family: var(--font-display); font-size: 11px; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; color: var(--primary); margin: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.45; text-wrap: balance; margin: 0; }

.lp-head { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px) saturate(120%); border-bottom: 1px solid var(--border); }
.lp-head .wrap { display: flex; align-items: center; justify-content: space-between; padding-block: 14px; }
.vx { font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: .14em; text-decoration: none; color: var(--ink-strong); }
.vx b { color: var(--primary); }
.tag { font-family: var(--font-display); font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase; color: var(--ink-muted); }

.hero { padding-block: clamp(40px, 7vw, 72px); }
.hero-grid { display: grid; gap: 32px; }
@media (min-width: 860px) { .hero-grid { grid-template-columns: 1.5fr .85fr; align-items: center; gap: 48px; } }
.hero h1 { font-size: clamp(26px, 4.6vw, 40px); margin: 16px 0 0; color: var(--ink-strong); }
.hero h1 .u { color: var(--primary); }
.lede { margin: 18px 0 0; max-width: 46em; font-size: clamp(15px, 2vw, 16.5px); }
.hero-cta { margin: 24px 0 0; }
.facts { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 8px 4px; }
.facts ul { margin: 0; padding: 0; }
.facts li { list-style: none; display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding: 13px 18px; border-bottom: 1px solid var(--border); }
.facts li:last-child { border-bottom: 0; }
.facts b { font-family: var(--font-display); color: var(--ink-strong); font-weight: 600; font-size: 17px; }
.facts span { color: var(--ink-muted); font-size: 13px; letter-spacing: .06em; text-align: right; }

.gallery-sec { padding-bottom: clamp(36px, 6vw, 64px); }
.gallery-head h2 { font-size: clamp(21px, 3.6vw, 28px); margin-top: 8px; color: var(--ink-strong); }
.gallery-head .note { color: var(--ink-muted); font-size: 13.5px; margin: 8px 0 24px; }
.gallery { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .gallery { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .gallery { grid-template-columns: repeat(3, 1fr); } }

.ecard { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; min-width: 0; }
.ecard:hover { border-color: var(--border-strong); }
.ecard.feat { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.thumb { display: block; position: relative; width: 100%; aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-deep);
  border: 0; border-bottom: 1px solid var(--border); cursor: pointer; padding: 0; }
.thumb .pc { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.thumb .sp { position: absolute; right: 5%; bottom: -14%; width: 23%; aspect-ratio: 390 / 844; height: auto; object-fit: cover; object-position: top;
  border-radius: 10px; border: 3px solid #0f0a07; box-shadow: 0 12px 28px -8px rgba(0, 0, 0, .7); }
.thumb .zoom { position: absolute; left: 12px; bottom: 12px; background: color-mix(in srgb, var(--surface-deep) 85%, transparent);
  color: var(--ink); border: 1px solid var(--border-strong); border-radius: 999px; font-size: 11px; letter-spacing: .08em; padding: 4px 11px; opacity: 0; transition: opacity .25s ease; }
.thumb:hover .zoom, .thumb:focus-visible .zoom { opacity: 1; }
@media (hover: none) { .thumb .zoom { opacity: 1; } }
.badge { position: absolute; top: 12px; left: 12px; background: var(--primary); color: var(--on-primary); font-size: 11px; font-weight: 700;
  letter-spacing: .1em; padding: 4px 10px; border-radius: 999px; }
.ebody { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.ek { font-size: 12px; letter-spacing: .04em; color: var(--primary); margin: 0; }
.en { font-size: 20px; color: var(--ink-strong); font-weight: 700; }
.ed { font-size: 13.5px; color: var(--ink-muted); line-height: 1.8; margin: 0; }
.eopen { margin-top: auto; padding-top: 10px; font-size: 14px; letter-spacing: .04em; color: var(--ink); text-decoration: none; font-weight: 500; }
.eopen span { color: var(--primary); }
.eopen:hover { color: var(--ink-strong); }

.btn { display: inline-flex; align-items: center; gap: .4em; font-size: 14px; letter-spacing: .04em; text-decoration: none; font-family: inherit;
  background: var(--primary); color: var(--on-primary); padding: 10px 18px; border-radius: 999px; font-weight: 700; border: 1px solid var(--primary); cursor: pointer; }
.btn:hover { background: var(--primary-hover); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); font-weight: 500; }

.think { padding-block: clamp(46px, 8vw, 78px); background: var(--bg-2); border-block: 1px solid var(--border); }
.think h2 { font-size: clamp(21px, 3.6vw, 28px); margin: 8px 0 6px; color: var(--ink-strong); }
.think .sub { color: var(--ink-muted); font-size: 14px; margin: 0 0 24px; }
.rows { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.row { display: grid; grid-template-columns: 1fr; gap: 6px; background: var(--surface); padding: 18px 20px; }
@media (min-width: 720px) { .row { grid-template-columns: 180px 1fr; gap: 24px; align-items: baseline; } }
.row .q { color: var(--primary); font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.row .a { color: var(--ink); font-size: 14.5px; }
.row .a b { color: var(--ink-strong); font-weight: 700; }

.lp-foot { border-top: 1px solid var(--border); padding-block: 38px 52px; }
.lp-foot .wrap { display: flex; flex-direction: column; gap: 18px; }
.disc { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; color: var(--ink-muted); font-size: 13px; line-height: 1.8; margin: 0; }
.disc b { color: var(--ink); }
.sig { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: baseline; justify-content: space-between; }
.sig .vx { font-size: 18px; }
.sig .who { font-size: 12px; color: var(--ink-muted); letter-spacing: .06em; }

/* プレビュー（iframe でサンプルをそのまま動かす） */
.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 12px; }
.modal-back { position: absolute; inset: 0; background: rgba(8, 5, 3, .78); backdrop-filter: blur(4px); }
.modal-card { position: relative; z-index: 1; width: min(1100px, 100%); max-height: calc(100dvh - 24px); display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 16px; overflow: hidden; box-shadow: 0 40px 90px -30px #000; }
.modal-x { position: absolute; top: 10px; right: 10px; z-index: 2; width: 36px; height: 36px; border-radius: 50%;
  background: var(--surface-deep); color: var(--ink); border: 1px solid var(--border-strong); cursor: pointer; font-size: 18px; line-height: 1; }
.modal-frame { background: #2a201b; border-bottom: 1px solid var(--border); display: flex; justify-content: center; flex: 1; min-height: 0; }
.modal-frame iframe { display: block; width: 100%; height: min(68dvh, 680px); border: 0; background: #fff; }
.modal-frame[data-view="sp"] iframe { width: min(390px, 100%); }
.modal-body { padding: 14px 20px 18px; display: flex; flex-direction: column; gap: 4px; }
.modal-actions { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-top: 6px; }
.seg { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 999px; overflow: hidden; }
.seg button { appearance: none; border: 0; background: transparent; color: var(--ink-muted); font: inherit; font-size: 13px; padding: 7px 14px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--ink-strong); }
@media (max-width: 600px) {
  .modal { padding: 0; }
  .modal-card { max-height: 100dvh; height: 100dvh; border-radius: 0; }
  .modal-frame iframe { height: 100%; }
  .seg { display: none; }
  .modal-body .ed { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }