/* =========================================================
   お問い合わせ（contact.html）: 社長室の場面に便箋を置き、送るとミミズクが運ぶ
   背景はヒーローの最後の場面（assets/contact/）。演出は js/contact-room.js
   確認用の草案は _lab/contact-c.html（公開しない）
   ========================================================= */
.croom { --paper: #D8C6B0; --ink: #1F1C18; --ink-sub: #3a2f22; --gold-d: #8C6A36; --err: #9a3b2e; position: relative; }

/* ---------- 部屋（画面に固定。16:9 を cover で敷く。動画は同じ位置に重ね、送ったときだけ見せる） ---------- */
.croom__scene { position: fixed; inset: 0; z-index: 0; overflow: hidden; background: var(--bg); }
.croom__stage { position: absolute; left: 50%; top: 50%; width: max(100vw, calc(177.78 * var(--vh, 1vh))); aspect-ratio: 16 / 9; transform: translate(-50%, -50%); }
@media (max-width: 767.98px) { .croom__stage { left: 45%; } }
.croom__stage > *, .croom__stage picture > img { position: absolute; }
.croom__stage picture { display: contents; }
.croom__bg { inset: 0; width: 100%; height: 100%; object-fit: cover; }
.croom__video { opacity: 0; }
.croom.is-playing .croom__video { opacity: 1; }
/* 机の上の閉じた手紙（中心 52.42% / 88.24%）。光の粒が届くとほのかに光る */
.croom__glow { left: 52.42%; top: 88.24%; width: 16%; aspect-ratio: 2.2; transform: translate(-50%, -50%); border-radius: 50%; opacity: 0; pointer-events: none; mix-blend-mode: screen;
  background: radial-gradient(closest-side, rgba(255,246,222,.85), rgba(245,214,150,.45) 40%, rgba(217,188,133,0)); }
.croom__vignette { inset: 0; pointer-events: none; background: radial-gradient(ellipse 80% 70% at 55% 45%, rgba(var(--bg-rgb),0), rgba(var(--bg-rgb),.3)); }

/* ---------- 便箋（画面の真ん中。スマホは部屋を少し見せてから） ---------- */
.croom__page { position: relative; z-index: 1; padding: calc(calc(12 * var(--vh, 1vh)) + 56px) 16px calc(16 * var(--vh, 1vh)); }
@media (max-width: 767.98px) { .croom__page { padding-top: calc(46 * var(--vh, 1vh)); } }
.croom .sheet { position: relative; width: min(560px, 100%); margin: 0 auto; padding: clamp(28px, 5vw, 52px) clamp(20px, 4.5vw, 48px);
  color: var(--ink); font-family: "Hina Mincho", "Noto Serif JP", serif; border-radius: 2px;
  background: var(--paper) url(/assets/letter/paper.webp) 0 0 / 120px auto;
  box-shadow: 0 30px 60px -24px rgba(0,0,0,.9), inset 0 0 0 1px rgba(120,92,58,.18), inset 0 0 28px rgba(110,82,48,.12); will-change: transform, opacity, filter; }
.croom .sheet__eyebrow { margin: 0; font-family: "Noto Serif JP", serif; font-size: 12px; font-weight: 400; letter-spacing: .3em; color: var(--gold-d); }
.croom .sheet__title { margin: 12px 0 0; font-weight: 400; font-size: clamp(22px, 2.4vw, 28px); line-height: 1.6; letter-spacing: .06em; word-break: keep-all; overflow-wrap: anywhere; }
.croom .sheet__lead { margin: 14px 0 28px; font-size: 14px; line-height: 2; color: var(--ink-sub); }
.croom .sheet__lead p { margin: 0; }
.croom .sheet__lead p + p { margin-top: 10px; }
.croom .sheet__lead strong { font-weight: 400; color: var(--ink); border-bottom: 1px solid rgba(140,106,54,.45); }

.croom .line { display: grid; grid-template-columns: 9.8em 1fr auto; align-items: end; gap: 10px; min-height: 46px; border-bottom: 1px dashed rgba(106,77,34,.45); }
.croom .line label { font-size: 14px; letter-spacing: .06em; color: var(--ink-sub); padding-bottom: 8px; }
.croom .line input, .croom .line select, .croom .line textarea { width: 100%; min-width: 0; border: 0; border-radius: 0; background: none; font: inherit; font-size: 17px; color: var(--ink); padding: 8px 2px; outline: none; }
.croom .line select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.croom .line--body { grid-template-columns: 1fr; align-items: start; padding-top: 12px; }
.croom .line--body label { display: flex; align-items: center; gap: 10px; }
.croom .line--body .req { margin-bottom: 0; }
.croom .line--body textarea { resize: vertical; line-height: 34px; padding: 0 2px; background-image: repeating-linear-gradient(transparent 0 33px, rgba(106,77,34,.35) 33px 34px); }
.croom .line:focus-within { border-bottom-color: var(--gold-d); }
.croom .req { font-family: "Noto Serif JP", serif; font-size: 10.5px; padding: 2px 7px; margin-bottom: 10px; border: 1px solid #6a4d22; border-radius: 999px; color: #6a4d22; white-space: nowrap; }
.croom .req--opt { border-color: rgba(106,77,34,.45); color: rgba(106,77,34,.8); }
.croom .line.is-error { border-bottom-color: var(--err); }
.croom .line.is-error label { color: var(--err); }
.croom .agree { margin: 22px 0 0; font-size: 14px; }
.croom .agree label { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.croom .agree input { width: 18px; height: 18px; accent-color: var(--gold-d); }
.croom .agree a { color: var(--ink); }
.croom .agree .req { margin: 0 0 0 8px; }
.croom .agree.is-error { color: var(--err); }
.croom .form__ts { margin-top: 18px; }
.croom .sheet__note { margin: 20px 0 0; font-family: "Noto Serif JP", serif; font-size: 12px; line-height: 1.9; color: rgba(58,47,34,.85); }
.croom .sheet__foot { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 26px; }
.croom .form__status { margin: 0; padding: 10px 14px; border-color: rgba(106,77,34,.35); color: var(--ink-sub); font-family: "Noto Serif JP", serif; text-align: center; }
.croom .form__status.is-ng { border-color: rgba(154,59,46,.45); color: var(--err); }
@media (max-width: 767.98px) { .croom .line { grid-template-columns: 1fr auto; } .croom .line label { grid-column: 1 / -1; padding: 10px 0 0; } }

/* ボタン: サイトの .btn（支給の枠 assets/button.svg）のまま。便箋の上では文字を墨色に */
.croom .btn--ink { color: var(--ink); }
.croom .btn--ink:hover { color: var(--ink); filter: drop-shadow(0 0 8px rgba(140,106,54,.35)); }
.croom .btn[disabled] { opacity: .6; cursor: wait; }

/* 光の粒（送ったとき、便箋から机の手紙へ） */
.croom-mote { position: fixed; z-index: 30; margin: -3px 0 0 -3px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(closest-side, #fffaf0, rgba(255,232,180,.9) 40%, rgba(233,200,130,0)); box-shadow: 0 0 8px 2px rgba(233,205,150,.6); mix-blend-mode: screen; }

/* 送っている間: 画面は部屋だけ（ヘッダーも隠し、スクロールさせない） */
html.is-croom-sending { overflow: hidden; }
html.is-croom-sending .header { opacity: 0; pointer-events: none; transition: opacity .6s; }
html.is-croom-sending .footer { visibility: hidden; }   /* 送信ボタンの下にフッターが見えていても、場面に重ねない */
.croom.is-sent .croom__page { visibility: hidden; }

/* ---------- 送信後（部屋がゆっくり暗くなり、真ん中に文字） ---------- */
.croom__done { position: fixed; z-index: 40; inset: 0; display: grid; place-items: center; padding: 24px 16px; text-align: center; color: var(--text-inv); }
.croom__done[hidden] { display: none; }
.croom__doneInner { width: min(520px, 100%); }
.croom__eyebrow { margin: 0; font-size: 12px; letter-spacing: .3em; color: var(--accent-l); }
.croom__title { margin: 16px 0 0; font-family: "Hina Mincho", "Noto Serif JP", serif; font-weight: 400; font-size: clamp(22px, 2.6vw, 32px); line-height: 1.6; letter-spacing: .08em; outline: none; }
.croom__text { margin: 18px 0 0; font-size: 14px; line-height: 2; color: #d9d0c0; }
.croom__btn { margin-top: 28px; }
html.is-croom-done .header { opacity: 1; pointer-events: auto; }
/* 同意の行: サイト共通の .agree（暗い地用の明るい文字）を、便箋の墨色に */
.croom .agree, .croom .agree label, .croom .agree span { color: var(--ink); }
.croom .agree.is-error, .croom .agree.is-error label, .croom .agree.is-error span { color: var(--err); }