/* フェローAI — わかりやすいデザイン */
*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#212121;--bg2:#171717;--bg3:#2f2f2f;--border:#3a3a3a;--text:#ececec;--text2:#b4b4b4;--text3:#777;--accent:#10a37f;--accent2:#0d8c6d;--green:#10a37f;--red:#ef4444;--radius:12px}
body.light{--bg:#f5f5f5;--bg2:#ffffff;--bg3:#e8e8e8;--border:#d5d5d5;--text:#1a1a1a;--text2:#555;--text3:#999;--accent:#10a37f;--accent2:#0d8c6d}
body{font-family:'Noto Sans JP','Inter',sans-serif;background:var(--bg);color:var(--text);height:100vh;display:flex;overflow:hidden;transition:background 0.3s,color 0.3s}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background:var(--text3);border-radius:3px}

/* ---------- サイドバー ---------- */
.side{width:260px;min-width:260px;background:var(--bg2);display:flex;flex-direction:column;padding:12px;border-right:1px solid var(--border)}
.side-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding:4px 4px}
.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--text)}
.icon-btn{width:32px;height:32px;border:none;border-radius:8px;background:transparent;color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s}
.icon-btn:hover{background:var(--bg3);color:var(--text)}
.new-chat-btn{background:var(--bg3)}
.new-chat-btn:hover{background:var(--accent);color:#fff}
.side-section{margin-bottom:8px;display:flex;flex-direction:column}
.side-label{font-size:12px;font-weight:600;color:var(--text3);margin-bottom:8px;padding-left:8px}
.hist-item{display:flex;align-items:center;width:100%;padding:10px 12px;border-radius:10px;margin-bottom:3px;transition:.15s;cursor:pointer;color:var(--text2);font-size:13px;text-align:left}
.hist-item:hover{background:var(--bg3);color:var(--text)}
.hist-item.on{background:var(--bg3);color:var(--text);font-weight:600}
.hist-txt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:8px}
.hist-actions{display:none;gap:4px}
.hist-item:hover .hist-actions{display:flex}
.hist-actions button{background:none;border:none;color:var(--text3);padding:4px;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:.15s}
.hist-actions button:hover{background:rgba(255,255,255,0.1);color:var(--text)}
.t-ico{font-size:16px;flex-shrink:0}
.side-bottom{margin-top:auto;padding:12px 4px 4px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.user-row{display:flex;align-items:center;gap:10px}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}
#uname{font-size:13px;font-weight:600;color:var(--text)}

/* ---------- メイン ---------- */
.main{flex:1;display:flex;flex-direction:column;position:relative}
.menu-btn{display:none;position:absolute;top:12px;left:12px;z-index:20;border:none;background:var(--bg3);color:var(--text);width:36px;height:36px;border-radius:8px;font-size:18px;cursor:pointer}

/* ---------- ようこそ画面 ---------- */
.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px}
.welcome.hide{display:none}
.w-logo{width:64px;height:64px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:20px;box-shadow:0 8px 24px rgba(16,163,127,0.3)}
.welcome h2{font-size:24px;font-weight:700;margin-bottom:8px;color:var(--text)}
.w-sub{color:var(--text2);font-size:15px;margin-bottom:32px;text-align:center;line-height:1.6}
.w-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:560px;width:100%}
.w-card{display:flex;gap:12px;padding:16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:.15s;align-items:flex-start}
.w-card:hover{border-color:var(--accent);background:var(--bg3);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.2)}
.w-icon{font-size:24px;flex-shrink:0}
.w-card strong{font-size:14px;display:block;margin-bottom:4px;color:var(--text)}
.w-card p{font-size:12px;color:var(--text2);margin:0;line-height:1.4}

/* ---------- メッセージ ---------- */
.msgs{flex:1;overflow-y:auto;display:none}
.msgs.on{display:block}
.msg{display:flex;gap:14px;padding:20px 32px;max-width:800px;margin:0 auto;width:100%;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.msg-r{flex-direction:row-reverse}
.msg-av{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.msg-av-ai{background:var(--accent);color:#fff}
.msg-av-u{background:#9a5ce5;color:#fff}
.msg-body{flex:1;font-size:15px;line-height:1.75;min-width:0}
.msg-body-ai{color:var(--text)}
.msg-body-u .bubble{background:var(--bg3);border-radius:20px;padding:12px 18px;color:var(--text);display:inline-block}
.msg-body-ai .bubble{padding:0}

/* ---------- 生成中インジケーター ---------- */
.generating-indicator{display:flex;align-items:center;gap:10px;padding:12px 0;color:var(--text2);font-size:14px;font-weight:500}
.generating-indicator .spinner{width:18px;height:18px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 0.7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 思考（非表示だが互換性のため残す） ---------- */
.think{margin:8px 0 12px;border:1px solid rgba(16,163,127,0.15);border-radius:12px;background:rgba(16,163,127,0.03);overflow:hidden}
.think-h{padding:10px 16px;font-size:12px;font-weight:600;color:var(--accent);cursor:pointer;display:flex;align-items:center;gap:8px;user-select:none;transition:.2s}
.think-h:hover{background:rgba(16,163,127,0.06)}
.think-h::before{content:'💭';font-size:14px}
.think-c{padding:14px 18px;font-size:13px;color:var(--text2);line-height:1.7;display:none;background:rgba(16,163,127,0.02)}
.think-c.open{display:block;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ---------- マークダウン ---------- */
.msg-body pre{background:#1a1a1a;border:1px solid var(--border);border-radius:10px;padding:16px;overflow-x:auto;font-family:'JetBrains Mono',monospace;font-size:13px;line-height:1.6;margin:12px 0}
.msg-body code{font-family:'JetBrains Mono',monospace;font-size:13px;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:4px}
.msg-body pre code{background:0;padding:0}
.msg-body h1,.msg-body h2,.msg-body h3{font-weight:600;margin:16px 0 8px;color:var(--text)}
.msg-body h1{font-size:18px}.msg-body h2{font-size:16px}.msg-body h3{font-size:14.5px}
.msg-body p{margin-bottom:10px}.msg-body ul,.msg-body ol{margin-left:24px;margin-bottom:10px}
.msg-body a{color:var(--accent);text-decoration:none}.msg-body a:hover{text-decoration:underline}
.msg-body table{border-collapse:collapse;margin:12px 0;width:100%}
.msg-body th,.msg-body td{border:1px solid var(--border);padding:8px 12px;font-size:13px}
.msg-body th{background:var(--bg3);font-weight:600;color:var(--text)}

/* ---------- カーソル ---------- */
.cursor::after{content:'';display:inline-block;width:2px;height:18px;background:var(--accent);animation:blink 1s step-end infinite;margin-left:2px;vertical-align:text-bottom}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

/* ---------- 入力欄 ---------- */
.input-wrap{padding:12px 32px 16px;max-width:800px;margin:0 auto;width:100%}
.input-box{display:flex;align-items:flex-end;gap:8px;background:var(--bg3);border:1px solid var(--border);border-radius:24px;padding:8px 16px;transition:.2s}
.input-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(16,163,127,0.1)}
#inp{flex:1;border:0;background:0;color:var(--text);font-family:inherit;font-size:15px;resize:none;outline:0;min-height:24px;max-height:160px;padding:8px 0;line-height:1.5}
#inp::placeholder{color:var(--text3)}
.input-actions{display:flex;align-items:center}
#send-btn{width:36px;height:36px;border:0;border-radius:50%;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s;flex-shrink:0}
#send-btn:hover{background:var(--accent2);transform:scale(1.05)}
#send-btn:disabled{background:var(--text3);cursor:default;transform:none;opacity:0.5}

/* ---------- ツール用ボタン ---------- */
.domain-btn,.tool-btn{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;border:none;background:0;color:var(--text2);font-family:inherit;font-size:13px;font-weight:500;text-align:left;border-radius:8px;cursor:pointer;transition:.15s;margin-bottom:2px}
.domain-btn:hover,.tool-btn:hover{background:var(--bg3);color:var(--text)}
.domain-btn.on{background:var(--bg3);color:var(--text);font-weight:600}

/* ---------- ポップアップ ---------- */
.modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:100;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-box{background:var(--bg2);border:1px solid var(--border);border-radius:16px;width:100%;max-width:560px;max-height:85vh;overflow-y:auto;padding:32px;box-shadow:0 16px 40px rgba(0,0,0,0.4)}
.modal-box h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.m-label{font-size:13px;font-weight:600;color:var(--text2);margin-bottom:8px;display:block}
.m-input{width:100%;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:10px;color:var(--text);font-family:inherit;font-size:14px;outline:0;margin-bottom:16px;transition:.2s}
.m-input:focus{border-color:var(--accent)}
textarea.m-input{min-height:100px;resize:vertical;line-height:1.5}
.m-btn{padding:14px 28px;border:0;border-radius:12px;background:var(--accent);color:#fff;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:.15s}
.m-btn:hover{background:var(--accent2);transform:translateY(-1px)}
.m-btn:disabled{opacity:.5;transform:none}
.m-btn.danger{background:var(--bg);border:1px solid var(--red);color:var(--red)}
.m-btn.danger:hover{background:rgba(239,68,68,0.1)}
.result-box{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:16px;font-size:13px;line-height:1.6;margin-top:16px;white-space:pre-wrap;max-height:300px;overflow-y:auto}
.attempt{border:1px solid var(--border);border-radius:10px;margin-bottom:10px;overflow:hidden}
.attempt-h{padding:10px 14px;font-size:12px;font-weight:600;display:flex;justify-content:space-between}
.attempt-h.ok{background:rgba(16,163,127,.1);color:var(--green)}
.attempt-h.ng{background:rgba(239,68,68,.1);color:var(--red)}
.attempt pre{margin:0;font-size:12px;border:0;border-radius:0;background:#1a1a1a}
.map-wrap{margin:16px 0;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,0.2);border:1px solid var(--border)}
.map-wrap iframe{display:block}

/* ---------- ライトモード追加対応 ---------- */
body.light .msg-body pre{background:#f0f0f0}
body.light .msg-body-u .bubble{background:#e0e0e0;color:#1a1a1a}
body.light .map-wrap iframe{filter:none}

/* ---------- スマホ対応 ---------- */
@media(max-width:768px){
  .side{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);transition:.3s cubic-bezier(0.4,0,0.2,1)}
  .side.open{transform:translateX(0)}
  .menu-btn{display:block}
  .w-grid{grid-template-columns:1fr}
  .msg{padding-left:16px;padding-right:16px}
  .input-wrap{padding:12px 16px 12px}
}