:root{
  --gold:#b8883a; --gold-d:#8b5e1c; --cream:#fdf6ec; --ink:#333;
  --line:#e5e0d5; --bg:#f6f3ec; --danger:#c0392b; --ok:#2e7d32;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);font-size:14px}
.hidden{display:none!important}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#fdf6ec,#efe3c8 60%,#e6d3ac)}
.login-card{width:360px;background:#fff;border-radius:14px;padding:36px 32px;box-shadow:0 18px 50px rgba(91,61,28,.18);text-align:center}
.login-logo{font-size:26px;font-weight:700;color:var(--gold-d);letter-spacing:2px}
.login-sub{color:#999;margin:6px 0 26px;font-size:13px}
.login-card input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;margin-bottom:14px;outline:none}
.login-card input:focus{border-color:var(--gold)}
.login-error{color:var(--danger);font-size:13px;min-height:18px;margin-top:10px}

/* topbar */
.topbar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:56px}
.topbar-brand{font-weight:700;color:var(--gold-d);font-size:16px;letter-spacing:1px}
.topbar-actions{display:flex;align-items:center;gap:10px}
.save-status{font-size:12px;color:#999;margin-right:4px}

/* buttons */
.btn{border:1px solid transparent;border-radius:8px;padding:9px 16px;font-size:14px;cursor:pointer;transition:.15s}
.btn-gold{background:linear-gradient(90deg,var(--gold),#9a6e2e);color:#fff}
.btn-gold:hover{filter:brightness(1.06)}
.btn-gold:disabled{opacity:.45;cursor:not-allowed}
.btn-line{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--gold);color:var(--gold-d)}
.btn-danger{background:#fff;border-color:#e8c4c0;color:var(--danger)}
.btn-danger:hover{background:#fdf1f0}
.btn-mini{padding:4px 10px;font-size:12px;border-radius:6px}

/* layout */
.layout{display:flex;min-height:calc(100vh - 56px)}
.side{width:200px;background:#fff;border-right:1px solid var(--line);padding:14px 10px;flex-shrink:0}
.side-item{display:block;width:100%;text-align:left;border:none;background:transparent;padding:11px 14px;border-radius:8px;font-size:14px;color:var(--ink);cursor:pointer;margin-bottom:4px}
.side-item:hover{background:#faf6ee}
.side-item.active{background:linear-gradient(90deg,#f7ecd8,#fdf6ec);color:var(--gold-d);font-weight:600}
.content{flex:1;padding:22px 26px;max-width:1060px}
.view h2{font-size:18px;color:var(--gold-d);margin-bottom:6px}
.view .desc{color:#999;font-size:13px;margin-bottom:18px}

/* cards & forms */
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:14px}
.card h3{font-size:15px;margin-bottom:12px;color:#555}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px 16px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:12px;color:#8a7d63}
.field input,.field select,.field textarea{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px;outline:none;font-family:inherit;background:#fff}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--gold)}
.field textarea{resize:vertical;min-height:64px}

/* image slots */
.img-row{display:flex;gap:12px;flex-wrap:wrap}
.img-slot{width:180px;border:1px dashed #d8cdb6;border-radius:10px;background:#fbf8f1;overflow:hidden}
.img-slot .thumb{width:100%;height:112px;object-fit:cover;display:block;background:#eee}
.img-slot .slot-label{font-size:11px;color:#9a8d70;padding:6px 8px 2px;text-align:center}
.img-slot .slot-actions{display:flex;gap:6px;justify-content:center;padding:6px 8px 10px;flex-wrap:wrap}

/* hotel rows in trips */
.hotel-card{margin-bottom:12px}
.hotel-head{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none}
.hotel-head .title{font-weight:600;color:var(--ink);flex:1}
.hotel-head .badge{font-size:11px;color:#fff;background:var(--gold);border-radius:10px;padding:2px 8px}
.hotel-head .arrow{color:#aaa;transition:.2s}
.hotel-card.open .arrow{transform:rotate(90deg)}
.hotel-body{border-top:1px dashed var(--line);margin-top:12px;padding-top:14px}
.alt-item{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:8px;padding:6px 10px;margin-bottom:6px;background:#fdfbf6}
.alt-item .name{flex:1;font-weight:500}
.row-actions{display:flex;gap:8px;align-items:center}

/* misc */
.section-title{display:flex;align-items:center;gap:10px;margin:16px 0 10px}
.section-title h3{font-size:15px;color:var(--gold-d)}
.section-title .line{flex:1;height:1px;background:var(--line)}
.hint{font-size:12px;color:#a89a7d;margin-top:8px;line-height:1.6}
.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%);background:rgba(40,40,40,.92);color:#fff;padding:11px 20px;border-radius:24px;font-size:14px;z-index:999;opacity:0;pointer-events:none;transition:.25s}
.toast.show{opacity:1}
.route-row{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px;background:#fdfbf6;flex-wrap:wrap}
.route-row .rkey{font-size:11px;color:#aaa;font-family:monospace}
.line-block{margin-bottom:20px}
.alt-card{margin-bottom:12px}
.backup-row{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:8px;padding:8px 12px;margin-bottom:6px;background:#fdfbf6}
.backup-row .fname{flex:1;font-family:monospace;font-size:12px;color:#666}
select.trip-sel{padding:8px 10px;border:1px solid var(--line);border-radius:8px;margin-right:10px;font-size:14px}
@media (max-width:860px){
  .layout{flex-direction:column}
  .side{width:100%;display:flex;flex-wrap:wrap;gap:4px;border-right:none;border-bottom:1px solid var(--line)}
  .side-item{width:auto}
  .grid2,.grid3{grid-template-columns:1fr}
  .content{padding:16px}
}