:root{
  --brand:#383431;      /* sfondo scuro caldo */
  --brand-2:#2b2724;
  --gold:#C29A4C;
  --gold-d:#a7823b;
  --paper:#f6f4f1;
  --card:#ffffff;
  --ink:#2b2724;
  --muted:#8b857e;
  --line:#e7e2db;
  --ok:#2e7d54; --ok-bg:#e7f4ec;
  --warn:#b4791f; --warn-bg:#fbf1de;
  --err:#b23b3b; --err-bg:#fbe9e9;
  --radius:16px;
  --shadow:0 6px 24px rgba(30,26,22,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;
  padding-bottom:env(safe-area-inset-bottom);
}
.loading{padding:80px 20px;text-align:center;color:var(--muted)}

/* header brand */
.appbar{background:var(--brand);padding:calc(14px + env(safe-area-inset-top)) 16px 14px;position:sticky;top:0;z-index:20}
.appbar .wrap{max-width:760px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand-logo{height:38px}
.appbar .who{color:#cfc9c1;font-size:13px;text-align:right;line-height:1.2}
.appbar .who b{color:#fff;display:block;font-weight:600}
.linkbtn{background:none;border:none;color:var(--gold);font-size:13px;cursor:pointer;padding:4px}

.container{max-width:760px;margin:0 auto;padding:16px}
.tabbar{display:flex;gap:6px;overflow:auto;padding:12px 16px 0;max-width:760px;margin:0 auto;-webkit-overflow-scrolling:touch}
.tabbar button{flex:0 0 auto;background:#efe9e1;border:none;color:#6b655e;padding:9px 14px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer}
.tabbar button.active{background:var(--brand);color:#fff}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}
.card h2{margin:0 0 4px;font-size:17px}
.card .sub{color:var(--muted);font-size:13px;margin:0 0 12px}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.spread{display:flex;justify-content:space-between;align-items:center;gap:10px}
.grow{flex:1}
.muted{color:var(--muted)}
.small{font-size:13px}
.tiny{font-size:12px}
.center{text-align:center}
.mt{margin-top:12px}.mb{margin-bottom:12px}

label{display:block;font-size:13px;font-weight:600;margin:10px 0 4px;color:#4c4740}
input,select,textarea{
  width:100%;padding:12px;border:1px solid var(--line);border-radius:12px;font-size:16px;background:#fff;color:var(--ink);
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
textarea{min-height:64px;resize:vertical}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;border:none;
  padding:13px 16px;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;width:100%}
.btn:active{transform:translateY(1px)}
.btn.gold{background:var(--gold);color:#241f1a}
.btn.ghost{background:#efe9e1;color:#4c4740}
.btn.danger{background:var(--err-bg);color:var(--err)}
.btn.sm{width:auto;padding:8px 12px;font-size:13px;border-radius:10px}
.btn[disabled]{opacity:.5}

.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.pill.ok{background:var(--ok-bg);color:var(--ok)}
.pill.warn{background:var(--warn-bg);color:var(--warn)}
.pill.err{background:var(--err-bg);color:var(--err)}
.pill.gold{background:#f4ead3;color:var(--gold-d)}
.pill.grey{background:#eee9e2;color:#6b655e}

.balance{background:var(--brand);color:#fff;border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow);margin-bottom:14px}
.balance .n{font-size:44px;font-weight:800;color:var(--gold);line-height:1}
.balance .l{font-size:13px;color:#cfc9c1;letter-spacing:.5px;text-transform:uppercase;margin-top:4px}

.classitem{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:10px;background:#fff}
.classitem .day{font-weight:700}
.classitem .meta{color:var(--muted);font-size:13px;margin-top:2px}
.seatbar{height:6px;background:#eee9e2;border-radius:3px;overflow:hidden;margin-top:8px}
.seatbar i{display:block;height:100%;background:var(--gold)}

.listrow{display:flex;justify-content:space-between;align-items:center;padding:12px 4px;border-bottom:1px solid var(--line);gap:10px}
.listrow:last-child{border-bottom:none}
.listrow .name{font-weight:600}

.daygroup{margin:18px 0 6px;font-weight:800;color:#6b655e;font-size:13px;text-transform:uppercase;letter-spacing:.6px}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(20,17,15,.5);display:flex;align-items:flex-end;justify-content:center;z-index:50}
.modal{background:#fff;width:100%;max-width:520px;border-radius:20px 20px 0 0;padding:18px 18px calc(18px + env(safe-area-inset-bottom));max-height:92vh;overflow:auto}
@media(min-width:600px){.modal-bg{align-items:center}.modal{border-radius:20px}}
.modal h3{margin:0 0 12px}
.modal .x{float:right;background:none;border:none;font-size:22px;color:var(--muted);cursor:pointer}

.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:24px;background:#2b2724;color:#fff;padding:12px 18px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:100;max-width:90%}
.toast.show{opacity:1}
.toast.err{background:#8a2f2f}

.hero{min-height:100vh;background:var(--brand);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center}
.hero .brand-logo{height:56px;margin-bottom:28px}
.hero .card{width:100%;max-width:380px;text-align:left}
.hero a.small{color:var(--gold)}

.empty{text-align:center;color:var(--muted);padding:30px 10px}
hr{border:none;border-top:1px solid var(--line);margin:14px 0}
.kv{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}
.kv b{font-weight:700}