/* メラボコマインド — クリーム × 深緑（チャット形式） */
:root{
  --cream:#f7f2e8; --paper:#fffdf8; --ink:#1d2b27; --green:#163f37; --green2:#24584d;
  --gold:#b98a3e; --line:#e3dbc8; --muted:#6b7a74; --err:#b3361f; --ok:#1f7a4d;
  --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.7 "Hiragino Sans","Yu Gothic UI","Meiryo",system-ui,sans-serif;display:flex;flex-direction:column;height:100dvh;overflow:hidden}
.hide{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
a{color:var(--green2)}
button{font:inherit;cursor:pointer}
button:disabled{opacity:.5;cursor:not-allowed}

.top{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--line);background:var(--paper)}
.wordmark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--green);white-space:nowrap}
.mark{font:700 26px/1 Georgia,serif;background:var(--green);color:var(--cream);border-radius:12px;padding:6px 10px 8px}
.mark span{color:var(--gold)}
.wordmark>span:last-child{display:flex;flex-direction:column;font-weight:700;letter-spacing:.18em;font-size:14px;line-height:1.2}
.wordmark small{font-size:9px;letter-spacing:.3em;color:var(--muted);font-weight:500}
.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pill{border:1px solid var(--line);background:var(--paper);color:var(--green);border-radius:999px;padding:6px 14px;font-size:13px;white-space:nowrap}
.pill:hover{border-color:var(--green2)}
.pill.accent{background:var(--green);color:var(--cream);border-color:var(--green)}
.pill .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#c9c2b0;margin-right:6px}
.pill.on .dot{background:#2ea36b}

.chat{flex:1;display:flex;flex-direction:column;min-height:0;width:100%;max-width:820px;margin:0 auto}
.thread{flex:1;overflow-y:auto;padding:24px 20px 12px}
.welcome{text-align:center;padding:20px 0 8px}
.orbit{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;border:1px solid var(--gold);display:grid;place-items:center;color:var(--gold);font-size:22px;box-shadow:0 0 0 8px rgba(185,138,62,.08)}
.eyebrow{display:block;font-size:10px;letter-spacing:.32em;color:var(--gold);margin:0 0 8px;font-weight:600}
h1{font:600 clamp(28px,6vw,40px)/1.3 "Hiragino Mincho ProN","Yu Mincho",Georgia,serif;margin:0 0 10px;color:var(--green)}
h1 em{font-style:normal;color:var(--gold)}
h2{font:600 22px/1.4 "Hiragino Mincho ProN","Yu Mincho",Georgia,serif;margin:4px 0 8px;color:var(--green)}
.intro{color:var(--muted);margin:0 auto 22px;max-width:34em;font-size:15px}
.starters{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:left}
.starter{display:flex;flex-direction:column;gap:2px;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius);padding:14px 16px;color:var(--ink);text-align:left;transition:.15s}
.starter:hover{border-color:var(--green2);transform:translateY(-2px);box-shadow:0 6px 18px rgba(22,63,55,.08)}
.starter span{color:var(--gold);font-size:18px}
.starter strong{color:var(--green)}
.starter small{color:var(--muted);font-size:12px}

.message{margin:14px 0;max-width:100%}
.message.user{display:flex;justify-content:flex-end}
.message.user .text{background:var(--green);color:var(--cream);border-radius:var(--radius) var(--radius) 4px var(--radius);padding:10px 16px;max-width:88%;white-space:pre-wrap;overflow-wrap:anywhere}
.message.assistant{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius) var(--radius) var(--radius) 4px;padding:12px 18px 10px}
.speaker{font-size:10px;letter-spacing:.3em;color:var(--gold);font-weight:700}
.message.assistant .text{white-space:pre-wrap;overflow-wrap:anywhere}
.copy{margin-top:6px;border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:999px;padding:2px 12px;font-size:12px}
.message.pending .text::after{content:"…";animation:blink 1.1s infinite;color:var(--gold)}
@keyframes blink{0%,100%{opacity:.2}50%{opacity:1}}

.composer-area{padding:8px 20px 12px;background:var(--cream)}
.composer{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:10px 14px;box-shadow:0 8px 28px rgba(22,63,55,.08)}
.composer:focus-within{border-color:var(--green2)}
.composer-top{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:4px}
select{border:1px solid var(--line);border-radius:999px;background:var(--cream);padding:4px 12px;font:inherit;font-size:13px;color:var(--green)}
.toggle{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--green);border:1px solid var(--line);border-radius:999px;padding:3px 12px;background:var(--cream);cursor:pointer}
textarea,input[type=email],input[type=password]{width:100%;font:inherit;color:var(--ink);background:transparent;border:0;outline:0;resize:none}
#input{min-height:56px;max-height:220px;padding:6px 2px}
.composer-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.send-side{display:flex;gap:10px;align-items:center;margin-left:auto}
.plain{border:0;background:transparent;color:var(--green2);font-size:13px;padding:4px 2px}
.plain:hover{text-decoration:underline}
.btn{border-radius:999px;border:1px solid var(--line);padding:8px 20px;background:var(--paper);color:var(--green)}
.btn.primary{background:var(--green);border-color:var(--green);color:var(--cream);font-weight:600}
.btn.primary:hover:not(:disabled){background:var(--green2)}
.btn.ghost{background:transparent}
.msg{font-size:13px;color:var(--muted)}
.msg.err{color:var(--err)}
.msg.ok{color:var(--ok)}
.under-composer{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);padding:6px 6px 0}

.site-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-top:8px;padding-top:8px;border-top:1px solid var(--line)}
.brand-footer{display:flex;align-items:center;gap:12px}
.brand-footer img{width:40px;height:40px;object-fit:contain;border-radius:10px}
.brand-footer span{display:block;font-size:9px;letter-spacing:.3em;color:var(--muted);line-height:1.3}
.brand-footer strong{display:block;letter-spacing:.2em;color:var(--green);line-height:1.2}
.brand-footer small{display:block;font-size:10px;color:var(--muted);line-height:1.3}
.brand-text{font-weight:700;color:var(--green)}
.foot-note{margin:0;font-size:11px;color:var(--muted)}

dialog{border:0;border-radius:24px;padding:26px 28px;max-width:min(560px,calc(100vw - 28px));width:100%;background:var(--paper);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.25);max-height:92dvh;overflow:auto}
dialog::backdrop{background:rgba(22,63,55,.45)}
.muted{color:var(--muted);font-size:14px;margin:0 0 12px}
.label{display:block;font-size:13px;color:var(--green);margin:12px 0 4px;font-weight:600}
dialog input[type=email],dialog input[type=password],dialog textarea{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--cream)}
.row{display:flex;gap:10px;margin-top:16px;align-items:center}
.row.end{justify-content:flex-end}.row.between{justify-content:space-between;flex-wrap:wrap}
.btns{display:flex;gap:8px}
.steps{padding-left:1.3em;margin:8px 0}.steps li{margin:8px 0}
.note{font-size:13px;color:var(--muted);background:var(--cream);border-radius:12px;padding:10px 14px}
.preview{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--cream);border:1px solid var(--line);border-radius:12px;padding:12px;max-height:40vh;overflow:auto;font:inherit;font-size:14px;margin:8px 0}
.chk{display:flex;gap:8px;align-items:flex-start;font-size:14px;margin:10px 0}
.price-card{background:var(--cream);border-radius:16px;padding:14px 18px;margin:8px 0}
.price{font:700 26px/1.3 Georgia,serif;color:var(--green)}.price small{font-size:12px;color:var(--muted);margin-left:6px}
.price-card ul{margin:8px 0 0;padding-left:1.2em;font-size:14px}

@media(max-width:640px){
  .top{padding:8px 12px}
  .thread{padding:14px 14px 8px}
  .composer-area{padding:6px 12px 8px}
  .starters{grid-template-columns:1fr}
  .starter{flex-direction:row;align-items:center;gap:10px;padding:10px 14px}
  .starter small{display:none}
  .intro{font-size:14px;margin-bottom:14px}
  .orbit{width:48px;height:48px;margin-bottom:8px}
  .under-composer span,.foot-note{display:none}
  dialog{padding:20px 18px}
}

/* 自分のAPIキー */
button.toggle{font:inherit;font-size:13px}
.notice{background:#fff6e0;border:1px solid #ecd9a4;border-radius:12px;padding:10px 14px;font-size:13px;margin:6px 0 10px;color:#5b4a1a}
select.wide{width:100%;padding:8px 12px}
.keyrow{display:flex;gap:8px;align-items:center}
.keyrow input{flex:1;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--cream)}
input.boxed{border:1px solid var(--line);border-radius:12px;padding:8px 12px;background:var(--cream);margin-top:8px;width:100%;font:inherit}
.small{font-size:12px}
.howto{margin-top:12px;background:var(--cream);border-radius:12px;padding:8px 14px;font-size:14px}
.howto summary{cursor:pointer;color:var(--green);font-weight:600}
.howto ol{padding-left:1.3em;margin:8px 0}.howto li{margin:6px 0}
.keyrow .btn{white-space:nowrap;padding:8px 14px}

/* 件（履歴） */
#caseBtn{max-width:220px}
#caseLabel{display:inline-block;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}
.recent{margin-top:26px;text-align:left}
.recent-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.recent-item{display:flex;flex-direction:column;gap:2px;border:1px dashed var(--line);background:transparent;border-radius:14px;padding:10px 14px;text-align:left;color:var(--ink)}
.recent-item:hover{border-color:var(--green2);background:var(--paper)}
.recent-item strong{color:var(--green);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.recent-item small{color:var(--muted);font-size:11px}
.casebox{border:1px solid #ecd9a4;background:#fff6e0;border-radius:12px;padding:8px 14px 10px;margin:10px 0}
.casebox legend{font-size:13px;font-weight:700;color:#5b4a1a;padding:0 6px}
.casebox label{display:flex;gap:8px;align-items:flex-start;font-size:14px;margin:6px 0;cursor:pointer}
.notice.slim{margin:0 0 10px;font-size:12px}
#histList{max-height:42vh;overflow:auto;margin:6px 0 4px}
.hist-row{display:flex;gap:8px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:8px 2px}
.hist-open{flex:1;min-width:0;text-align:left;border:0;background:transparent;padding:2px 0;color:var(--ink)}
.hist-open strong{display:block;color:var(--green);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hist-open small{color:var(--muted);font-size:11px}
.hist-row input{flex:1;border:1px solid var(--line);border-radius:10px;padding:6px 10px;background:var(--cream)}
.plain.danger{color:var(--err)}
@media(max-width:640px){.recent-list{grid-template-columns:1fr}#caseLabel{max-width:110px}}

/* ヘッダーのロゴ・ホームへ戻る・アバター */
.brandbar{display:flex;align-items:center;gap:10px}
.logo-link{display:block;line-height:0;flex:none}
.brand-logo{width:40px;height:40px;object-fit:contain;border-radius:50%;background:#fff;box-shadow:0 0 0 1px var(--line)}
.pill.home{text-decoration:none;display:inline-flex;align-items:center}
.avatar{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--green);color:var(--cream);font:700 12px/1 Georgia,"Hiragino Sans",sans-serif;margin-right:6px;text-transform:uppercase}
.pill .avatar + .dot{display:none}
.orbit #orbitMark.initial{font:600 28px/1 Georgia,"Hiragino Mincho ProN",serif;color:var(--green);text-transform:uppercase}
.orbit.mine{background:var(--paper)}
@media(max-width:640px){.brandbar .wordmark small{display:none}}