/* ============================================================
   白羽海宛郵便取扱所 — 見た目
   表向きは「古い公共サイト」。手紙のページだけ紙と鉛筆。
   ============================================================ */
:root{
  --paper:#F7F9FB;        /* 少し青い白 */
  --paper-2:#FFFFFF;
  --ink:#2A3034;
  --ink-2:#6B7378;
  --pencil:#5C6368;
  --rule:#D8DFE3;
  --sea:#3E7C86;
  --sea-soft:#E4EEF0;
  --error:#8A3B3B;
  --sans:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  --serif:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.85;transition:background .8s}
body.deep-night{background:#EEF1F3}
.wrap{max-width:44rem;margin:0 auto;padding-inline:clamp(16px,5vw,40px)}
a{color:var(--sea)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--sea);outline-offset:2px}
h1{font-weight:700;font-size:1.25rem;margin:0 0 1rem;letter-spacing:.02em}
h1 small{font-weight:400;color:var(--ink-2);font-size:.8rem;margin-left:.6em}
h2{font-size:1rem;margin:1.6rem 0 .3rem}
.muted{color:var(--ink-2);font-size:.9rem}
.error{color:var(--error);border-left:2px solid var(--error);padding-left:.8em;font-size:.9rem}
.ok{color:var(--sea)}
.lead{margin:0 0 1.5rem}
.table-wrap{overflow-x:auto}

/* 広告帯(規約上、上部に置く) */
.ad-slot{background:var(--paper-2);border-bottom:1px solid var(--rule);text-align:center;padding:.4rem 16px;min-height:2.2rem;font-size:.8rem;color:var(--ink-2)}
.ad-placeholder{opacity:.7}

/* ヘッダー・ナビ */
.site-head{background:var(--paper-2);border-bottom:1px solid var(--rule)}
.site-head .wrap{display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem 1.5rem;padding-block:1rem}
.brand{color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:.04em}
.brand small{font-weight:400;color:var(--ink-2);margin-left:.6em;font-size:.8rem}
.site-nav{display:flex;flex-wrap:wrap;gap:.2rem 1.2rem;font-size:.85rem}
.site-nav a{color:var(--ink-2);text-decoration:none;border-bottom:1px solid transparent}
.site-nav a:hover{color:var(--sea);border-color:var(--sea)}
main{padding-block:2.5rem 4rem;min-height:60vh}
.bare-main{display:flex;align-items:center;justify-content:center;min-height:80vh;padding-block:3rem}
.site-foot{border-top:1px solid var(--rule);font-size:.8rem;color:var(--ink-2)}
.site-foot .wrap{padding-block:1.2rem}
.site-foot .sep{margin:0 .5em}

/* アンケート */
.survey-heading{font-family:var(--serif);font-weight:500;font-size:1.4rem;letter-spacing:.06em}
.survey-heading.plain{font-family:var(--sans);font-weight:700;font-size:1.25rem;letter-spacing:.02em}
.deep-night-only{display:none;margin:-.6rem 0 1.4rem}
body.deep-night .deep-night-only{display:block}
.survey-form{display:flex;flex-direction:column;gap:1.4rem}
fieldset.q{border:1px solid var(--rule);background:var(--paper-2);padding:1rem 1.2rem 1.1rem;margin:0}
fieldset.q legend{padding:0 .4em;font-weight:500}
.qn{display:inline-block;font-size:.75rem;letter-spacing:.1em;color:var(--sea);margin-right:.4em}
.opt{display:block;padding:.2rem 0}
.opt input{margin-right:.5em}
input.text,textarea,input[type=text],input[type=email],input[type=password]{width:100%;font:inherit;color:var(--ink);background:var(--paper-2);border:1px solid var(--rule);padding:.5rem .7rem;border-radius:2px}
textarea{resize:vertical}
.note{margin:.5rem 0 0;font-size:.8rem;color:var(--ink-2)}
.actions{display:flex;gap:1rem;justify-content:flex-end}
.btn{font:inherit;font-size:.95rem;padding:.55rem 1.6rem;background:var(--sea);color:#fff;border:1px solid var(--sea);border-radius:2px;cursor:pointer;letter-spacing:.08em}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink-2)}
.btn.ghost:hover{border-color:var(--ink)}
.btn.small{padding:.25rem .8rem;font-size:.8rem}
.inline{display:inline}

/* 一問ずつ出る */
.step[hidden]{display:none}
.step.reveal{animation:step-in .7s ease both}
@keyframes step-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.step.done{opacity:.72}
.step.done:hover,.step.done:focus-within{opacity:1}
.row{display:flex;gap:.6rem;align-items:stretch}
.row input.text{flex:1;min-width:0}
.btn.next{padding:.45rem 1rem;font-size:.85rem;white-space:nowrap}
.actions.step{transition:opacity .6s}

/* 鉛筆の字は薄くなる(JS が .fading を付ける) */
.pencil{color:var(--pencil);transition:color 2.4s ease, opacity 2.4s ease}
.pencil.fading{color:#B7BEC3}

/* お前ですか? / 着地 / 選択 */
.omae,.thanks,.choose{text-align:center;font-family:var(--serif)}
.omae-q{font-size:1.1rem;letter-spacing:.2em;margin:0 0 2.2rem}
.omae-form,.choose-form{display:flex;gap:2rem;justify-content:center}
.thanks-line{font-size:1.05rem;letter-spacing:.08em;margin:0}
.thanks-pre{color:var(--ink-2);margin:0 0 1.4rem;letter-spacing:.08em}
.thanks-back{margin-top:3rem;font-size:.85rem;font-family:var(--sans)}
.thanks-back a{color:var(--ink-2)}
.choose-text{letter-spacing:.14em;line-height:2.4;margin:1.4rem 0 2.4rem}
.bell{background:none;border:0;color:var(--ink-2);cursor:pointer;padding:.4rem;transition:transform .4s}
.bell:hover{color:var(--ink)}
.bell.rung{transform:scale(var(--bell-scale,1))}

/* まだ、いますか? */
.still-here{position:fixed;left:0;right:0;bottom:1.2rem;text-align:center;margin:0;font-family:var(--serif);letter-spacing:.2em;color:var(--ink-2);opacity:0;transition:opacity 3s;pointer-events:none}
.still-here.show{opacity:1}

/* フィクション表記 */
.fiction-note{text-align:center;font-size:.72rem;color:var(--ink-2);margin:0;padding:1rem 16px 3.4rem;letter-spacing:.04em}
.bare .fiction-note{position:fixed;left:0;right:0;bottom:0;padding-bottom:.9rem;background:transparent}

/* END と曲 */
.the-end{font-family:var(--sans);text-align:center;letter-spacing:.5em;color:var(--ink-2);font-size:.85rem;margin:3rem 0 1.5rem;-webkit-mask-image:none;mask-image:none}
.ending-audio{text-align:center;margin:0 0 1rem}
.ending-audio audio{width:100%;max-width:26rem;display:block;margin:0 auto .8rem}
.ending-audio-title{font-family:var(--sans);font-size:.85rem;color:var(--ink-2);margin:0 0 .6rem;-webkit-mask-image:none;mask-image:none}

/* 進行度(右下) */
.progress{position:fixed;right:.9rem;bottom:.8rem;font-family:var(--serif);font-size:.85rem;letter-spacing:.12em;color:var(--ink-2);background:var(--paper-2);border:1px solid var(--rule);padding:.25rem .7rem;font-variant-numeric:tabular-nums;z-index:5}
.progress-label{font-size:.7rem;margin-right:.3em}

/* 消印 */
#postmark{position:fixed;top:.6rem;right:.6rem;width:72px;height:72px;opacity:0;pointer-events:none;transition:opacity 1.5s}
body.stamped #postmark{opacity:.55}

/* 手紙 */
.page-letter{background:#F4F7FA}
.letter{font-family:var(--serif);color:var(--pencil);font-size:1.02rem;line-height:2.2;max-width:38rem;margin:0 auto;background:var(--paper-2);padding:3rem clamp(1.2rem,5vw,3rem) 3.4rem;box-shadow:0 1px 0 var(--rule), 0 10px 30px -22px rgba(42,48,52,.35)}
.letter-no{font-family:var(--sans);font-size:.75rem;letter-spacing:.16em;color:var(--ink-2);margin:0 0 1.6rem}
.letter h1{font-family:var(--serif);font-weight:500;font-size:1.25rem;letter-spacing:.1em;color:var(--ink);margin:0 0 2.2rem}
.letter p{margin:0 0 1.4em;-webkit-mask-image:linear-gradient(90deg,#000 88%,rgba(0,0,0,.55));mask-image:linear-gradient(90deg,#000 88%,rgba(0,0,0,.55))}
.letter ::selection{background:#fff;color:#fff}
.letter-nav{display:flex;justify-content:space-between;gap:1rem;font-family:var(--sans);font-size:.85rem;margin-top:2.5rem;padding-top:1rem;border-top:1px dashed var(--rule)}
.letter-nav a{color:var(--ink-2)}
.post-index p{margin:.4rem 0}
.intro{max-width:34rem}
.intro-go{text-align:center;margin-top:2.5rem}
.intro-go .btn{text-decoration:none;font-family:var(--sans)}
.page-intro .progress{display:none}
.fragment{margin:0;padding:1.6rem 1.8rem}

/* お問い合わせ = 封筒。背景に白いポスト */
.page-contact{position:relative}
.contact{position:relative;z-index:1}
.envelope{position:relative;background:#fff;border:1px solid var(--rule);padding:2.4rem 1.6rem 1.4rem;display:flex;flex-direction:column;gap:1rem;transition:transform 1s cubic-bezier(.4,0,1,1),opacity 1s;box-shadow:0 12px 30px -24px rgba(42,48,52,.5)}
.envelope.sinking{transform:translateY(120px);opacity:0}
.env-flap{position:absolute;left:0;right:0;top:0;height:2rem;background:linear-gradient(180deg,#F1F4F6,#fff);border-bottom:1px solid var(--rule);clip-path:polygon(0 0,100% 0,50% 100%)}
.env-row{display:grid;grid-template-columns:7.5em 1fr;gap:.6rem;align-items:start}
.env-row span{font-size:.85rem;color:var(--ink-2);padding-top:.5rem}
@media (max-width:560px){.env-row{grid-template-columns:1fr}}
.env-stamp{position:absolute;top:1rem;right:1rem;width:2.6rem;height:3.2rem;border:1px dashed var(--rule);background:#fff}
.postbox{position:absolute;right:clamp(8px,4vw,60px);top:6rem;width:110px;opacity:.28;pointer-events:none}
.postbox-body{height:140px;background:#fff;border:1px solid var(--rule);border-radius:16px 16px 6px 6px;position:relative}
.postbox-slot{position:absolute;left:18px;right:18px;bottom:16px;height:8px;border:1px solid var(--rule);border-radius:4px}
.postbox-legs{display:flex;justify-content:space-around;padding:0 10px}
.postbox-legs i{display:block;width:6px;height:34px;background:#fff;border:1px solid var(--rule);border-top:0}
@media (max-width:700px){.postbox{display:none}}

/* 職員用窓口 */
.login-form{display:flex;flex-direction:column;gap:1rem;max-width:22rem}
.login-form label{display:flex;flex-direction:column;gap:.3rem;font-size:.85rem;color:var(--ink-2)}
.kotoba-link{margin-top:2.5rem;font-size:.8rem}
.kotoba-link a{color:var(--ink-2)}
.ledger-note{font-family:var(--serif);color:var(--ink-2);font-size:.9rem;margin:-.6rem 0 1.2rem;letter-spacing:.06em}
.ledger{border-collapse:collapse;font-family:var(--serif);font-size:.92rem;min-width:100%;background:var(--paper-2)}
.ledger th,.ledger td{border-bottom:1px solid var(--rule);padding:.5em .8em;text-align:left;white-space:nowrap;vertical-align:top}
.ledger th{font-weight:500;color:var(--ink-2);font-size:.8rem;letter-spacing:.06em}
.ledger tr.faded td{filter:blur(2.2px);opacity:.35;user-select:none}
.ledger tr.target td{color:var(--ink);font-weight:500}
.ledger tr.unstamped td{color:var(--ink-2);font-style:normal}
.margin-notes{margin-top:2rem;font-family:var(--serif);color:var(--pencil)}
.margin-head{font-size:.8rem;color:var(--ink-2);letter-spacing:.06em;margin:0 0 .4rem}
.margin-line{margin:0;line-height:2}
.envelope-keep{margin-top:2rem;display:inline-flex;flex-direction:column;align-items:center;gap:.3rem;cursor:not-allowed}
.env-mini{width:120px;height:74px;background:#fff;border:1px solid var(--rule);position:relative;box-shadow:0 6px 16px -14px rgba(42,48,52,.6)}
.env-mini::before{content:"";position:absolute;inset:0;clip-path:polygon(0 0,100% 0,50% 55%);background:#F1F4F6;border-bottom:1px solid var(--rule)}
.env-addr{position:absolute;right:12px;bottom:8px;font-family:var(--serif);color:var(--pencil)}
.op-table{border-collapse:collapse;font-size:.8rem}
.op-table th,.op-table td{border-bottom:1px solid var(--rule);padding:.3em .6em;text-align:left;vertical-align:top}

/* 取扱所について・規約 */
.info{display:grid;grid-template-columns:7em 1fr;gap:.4rem 1rem;margin:0 0 1.5rem}
.info dt{color:var(--ink-2);font-size:.85rem}
.info dd{margin:0}
.terms p{margin:.2rem 0 .8rem}
.terms .indent{padding-left:1.5em}

/* 印刷すると「海宛て」だけ */
.print-only{display:none}
@media print{
  body *{display:none !important}
  body{display:block !important;background:#fff}
  .print-only{display:block !important;font-family:var(--serif);font-size:2rem;text-align:center;margin-top:40vh;letter-spacing:.4em}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}