/* Lawu Tennis Fun app: green court palette from the logo, Archivo display + Figtree body. */
:root{
  --bg:#F4F8F0; --surface:#FFFFFF; --surface-2:#EEF5E9; --ink:#0E2312; --muted:#566A59;
  --court:#0B6B22; --hero:#0B5E1F; --hero-ink:#FFFFFF; --ball:#C6F400; --rule:#D8E5D3;
  --ok:#1E7B34; --ok-bg:#E3F4E5; --warn:#9A5B00; --warn-bg:#FFF1D6; --bad:#B3261E; --bad-bg:#FCE4E1;
  --info:#1F5FA8; --info-bg:#E2EDFA; --wait:#6B4FB0; --wait-bg:#EEE8FA;
  --display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --body:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  --radius:14px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#08140B; --surface:#102217; --surface-2:#15291C; --ink:#E9F2E6; --muted:#9DB39F;
  --court:#3CC155; --hero:#0A3A15; --rule:#22392A;
  --ok:#6FD38A; --ok-bg:#12321C; --warn:#F2B24B; --warn-bg:#33270F; --bad:#FF8A80; --bad-bg:#3A1714;
  --info:#8CB8F0; --info-bg:#142538; --wait:#B9A2F0; --wait-bg:#251C3A; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--body);min-height:100vh}
a{color:var(--court)}
img{max-width:100%}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--ball);outline-offset:2px;border-radius:6px}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;text-wrap:balance}
h1{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:850;font-stretch:112%}
h2{font-size:1.3rem;font-weight:800;font-stretch:108%}
h3{font-size:1.05rem;font-weight:700}
p{margin:0}
.wrap{max-width:960px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.muted{color:var(--muted)}
.small{font-size:.88rem}
.num{font-variant-numeric:tabular-nums}

/* header */
.topbar{background:var(--hero);color:var(--hero-ink);position:sticky;top:0;z-index:20;padding-top:env(safe-area-inset-top,0px)}
.topbar .wrap{display:flex;align-items:center;gap:12px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-family:var(--display);font-weight:850;font-stretch:115%;text-transform:uppercase;letter-spacing:.02em;font-size:.95rem;white-space:nowrap}
.brand img{width:36px;height:36px;border-radius:50%;background:#fff;padding:2px}
.brand small{display:block;font-family:var(--body);font-weight:500;text-transform:none;letter-spacing:0;font-size:.72rem;opacity:.75}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.nav a{color:#fff;text-decoration:none;padding:8px 12px;border-radius:999px;font-weight:600;font-size:.92rem;opacity:.85}
.nav a:hover{opacity:1;background:rgba(255,255,255,.1)}
.nav a.on{background:var(--ball);color:#0E2312;opacity:1}
@media (max-width:560px){.brand span{display:none}.nav a{padding:7px 10px;font-size:.86rem}}

main{padding-block:24px 64px}
.page-head{display:grid;gap:6px;margin-bottom:18px}

/* controls */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:700 .95rem var(--display);font-stretch:108%;padding:11px 18px;border-radius:999px;border:2px solid transparent;cursor:pointer;text-decoration:none;background:var(--court);color:#fff;transition:transform .12s ease,opacity .12s}
.btn:hover{transform:translateY(-1px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-ball{background:var(--ball);color:#0E2312}
.btn-ghost{background:transparent;border-color:var(--rule);color:var(--ink)}
.btn-danger{background:transparent;border-color:var(--bad);color:var(--bad)}
.btn-sm{padding:7px 12px;font-size:.85rem}
.btn-block{width:100%}
.row-actions{display:flex;flex-wrap:wrap;gap:8px}
.field{display:grid;gap:6px;margin-bottom:14px}
.field label{font-weight:600;font-size:.92rem}
.field .hint{font-size:.82rem;color:var(--muted)}
input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1.5px solid var(--rule);border-radius:10px;padding:11px 12px;width:100%;min-width:0}
input:focus,select:focus,textarea:focus{border-color:var(--court);outline:none;box-shadow:0 0 0 3px rgba(60,193,85,.2)}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--court)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem}
.check input{margin-top:4px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media (max-width:560px){.grid2{grid-template-columns:1fr}}

.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:18px}
.stack{display:grid;gap:12px}
.auth-card{max-width:420px;margin:12px auto}
.auth-card h1{margin-bottom:6px}

/* chips */
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;margin-bottom:10px}
.chip{flex:none;font:600 .9rem var(--body);padding:8px 14px;border-radius:999px;border:1.5px solid var(--rule);background:var(--surface);color:var(--ink);cursor:pointer;white-space:nowrap}
.chip[aria-pressed=true]{background:var(--court);border-color:var(--court);color:#fff}
.datechip{display:grid;text-align:center;line-height:1.15;padding:8px 12px;min-width:62px}
.datechip b{font-family:var(--display);font-size:1.2rem;font-stretch:108%}
.datechip small{font-size:.72rem;font-weight:600;opacity:.8}

/* session card */
.sess{display:grid;grid-template-columns:110px 1fr auto;gap:14px 18px;align-items:center}
.sess+.sess{margin-top:10px}
.sess>*{min-width:0}
.sess-time{font-family:var(--display);font-weight:800;font-stretch:108%;font-size:1.15rem;font-variant-numeric:tabular-nums;line-height:1.2}
.sess-time small{display:block;font-family:var(--body);font-weight:500;font-size:.8rem;color:var(--muted)}
.sess-main{display:grid;gap:4px}
.sess-title{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center}
.sess-title b{font-weight:700;font-size:1.02rem}
.sess-meta{color:var(--muted);font-size:.9rem}
.sess-side{display:grid;gap:8px;justify-items:end;text-align:right}
.price{font-family:var(--display);font-weight:800;font-size:1.1rem;font-variant-numeric:tabular-nums}
.cap{display:grid;gap:4px;width:150px;max-width:100%}
.cap-bar{height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.cap-bar i{display:block;height:100%;background:var(--court);border-radius:99px}
.cap.full .cap-bar i{background:var(--bad)}
.cap span{font-size:.8rem;color:var(--muted)}
@media (max-width:640px){
  .sess{grid-template-columns:1fr auto}
  .sess-time{grid-column:1/-1;display:flex;gap:10px;align-items:baseline}
  .sess-time small{display:inline}
  .sess-side{grid-column:1/-1;grid-template-columns:1fr auto;justify-items:stretch;align-items:center;text-align:left}
  .cap{width:auto}
}

/* pills */
.pill,.lv{display:inline-block;font-size:.76rem;font-weight:700;padding:3px 10px;border-radius:999px;white-space:nowrap}
.st-booked{background:var(--warn-bg);color:var(--warn)}
.st-review{background:var(--info-bg);color:var(--info)}
.st-paid{background:var(--ok-bg);color:var(--ok)}
.st-wait{background:var(--wait-bg);color:var(--wait)}
.st-cancel{background:var(--surface-2);color:var(--muted)}
.lv{border:1.5px solid currentColor;background:transparent;font-weight:600}
.lv-newbie{color:var(--warn)}.lv-beginner{color:var(--court)}.lv-upper{color:var(--wait)}.lv-private{color:var(--info)}.lv-mabar{color:var(--muted)}

/* detail */
.kv{display:grid;grid-template-columns:120px 1fr;gap:10px 14px;margin:0}
.kv dt{color:var(--muted);font-size:.9rem}
.kv dd{margin:0;font-weight:600;min-width:0}
.alert{padding:14px 16px;border-radius:12px;font-size:.95rem}
.alert b{display:block;margin-bottom:2px}
.alert-ok{background:var(--ok-bg);color:var(--ok)}
.alert-warn{background:var(--warn-bg);color:var(--warn)}
.alert-info{background:var(--info-bg);color:var(--info)}
.alert-bad{background:var(--bad-bg);color:var(--bad)}
.alert-wait{background:var(--wait-bg);color:var(--wait)}
.qris-box{display:grid;justify-items:center;gap:10px;text-align:center;padding:18px;background:#fff;border-radius:14px;border:1px solid var(--rule);color:#0E2312}
.qris-box img{width:min(100%,300px);height:auto;image-rendering:auto}
.qris-total{font-family:var(--display);font-weight:900;font-size:1.8rem;font-variant-numeric:tabular-nums}
.proof-prev{max-height:320px;border-radius:10px;border:1px solid var(--rule);justify-self:center}
.bk-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center}
.code{font-family:var(--display);font-weight:800;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.list-item{display:grid;grid-template-columns:1fr auto;gap:6px 12px;align-items:center;text-decoration:none;color:inherit}
.list-item:hover{border-color:var(--court)}
.list-item+.list-item{margin-top:10px}
.empty{text-align:center;padding:36px 16px;color:var(--muted)}
.empty img{width:120px;border-radius:16px;margin-bottom:10px}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
.split>*{min-width:0}
@media (max-width:760px){.split{grid-template-columns:1fr}}

/* dialog */
dialog{border:0;border-radius:18px;padding:0;background:var(--surface);color:var(--ink);width:min(560px,calc(100vw - 24px));max-height:calc(100vh - 32px);box-shadow:0 30px 80px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(5,20,10,.55)}
.dlg-body{padding:20px;display:grid;gap:14px;overflow:auto;max-height:calc(100vh - 32px)}
.dlg-head{display:flex;justify-content:space-between;gap:12px;align-items:start}
.x{background:none;border:0;font-size:1.6rem;line-height:1;color:var(--muted);cursor:pointer;padding:0 4px}

/* toast */
#toasts{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom,0px));display:grid;gap:8px;z-index:100;width:min(420px,calc(100vw - 32px))}
.toast{background:#0E2312;color:#fff;padding:12px 16px;border-radius:12px;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.3);animation:tin .2s ease}
.toast.bad{background:#B3261E}
@keyframes tin{from{opacity:0;transform:translateY(8px)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.loading{padding:40px 0;text-align:center;color:var(--muted)}

/* admin */
.admin-shell{display:grid;grid-template-columns:210px 1fr;min-height:calc(100vh - 60px)}
.side{background:var(--surface);border-right:1px solid var(--rule);padding:18px 12px;display:grid;align-content:start;gap:4px;position:sticky;top:60px;height:calc(100vh - 60px)}
.side a{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:600}
.side a.on{background:var(--surface-2);color:var(--court)}
.side .badge{background:var(--bad);color:#fff;font-size:.72rem;padding:1px 8px;border-radius:99px}
.admin-main{padding:24px max(16px,env(safe-area-inset-right,0px)) 64px 24px;min-width:0}
@media (max-width:860px){
  .admin-shell{grid-template-columns:1fr}
  .side{position:static;height:auto;display:flex;overflow-x:auto;border-right:0;border-bottom:1px solid var(--rule);padding:8px max(16px,env(safe-area-inset-left,0px))}
  .side a{flex:none}
  .admin-main{padding:20px max(16px,env(safe-area-inset-right,0px)) 64px max(16px,env(safe-area-inset-left,0px))}
}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}
.tile{display:grid;gap:4px}
.tile small{color:var(--muted);font-weight:600;font-size:.82rem}
.tile b{font-family:var(--display);font-weight:850;font-size:1.7rem;font-variant-numeric:tabular-nums;line-height:1.1}
.tile.alert-tile{border-color:var(--info);background:var(--info-bg)}
@media (max-width:760px){.tiles{grid-template-columns:1fr 1fr}}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin-bottom:14px}
.toolbar>*{flex:1 1 160px;min-width:0}
.toolbar .btn{flex:0 0 auto}
.tbl-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.93rem}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--surface-2);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
tbody tr.click{cursor:pointer}
tbody tr.click:hover td{background:var(--surface-2)}
td.nowrap{white-space:nowrap}
.sec-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:22px 0 10px}
.roster{margin-top:12px;border-top:1px dashed var(--rule);padding-top:10px;display:grid;gap:6px}
.roster-row{display:grid;grid-template-columns:24px 1fr auto;gap:10px;align-items:center;font-size:.92rem}
.roster-row>*{min-width:0}
.cancelled-sess{opacity:.7}
.proof-img{width:100%;border-radius:12px;border:1px solid var(--rule)}
.daygroup h3{margin:18px 0 8px;font-stretch:115%;text-transform:uppercase}