:root{
  --bg:#f5f6fa;--card:#fff;--text:#1d2130;--muted:#6b7185;--line:#e4e6ee;
  --primary:#4f46e5;--primary-d:#4338ca;--primary-soft:#eef0ff;
  --ok:#0f9d58;--ok-soft:#e6f6ee;--warn:#b7791f;--warn-soft:#fdf5e6;--err:#d93025;--err-soft:#fdecea;
  --radius:12px;--shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
  --gutter:16px;--topbar:60px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;display:flex;flex-direction:column;min-height:100vh;min-height:100dvh;overflow-x:hidden}
img{max-width:100%}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:clamp(1.3rem,1.1rem + 1vw,1.6rem);margin:0 0 .25rem;line-height:1.25}
h2{font-size:clamp(1.05rem,1rem + .3vw,1.2rem);margin:0 0 .75rem}
h3{font-size:1rem;margin:0 0 .5rem}
p{margin:.25rem 0 .75rem}
code{word-break:break-word}
[hidden]{display:none!important}
.wrap{max-width:1100px;margin:0 auto;padding-left:max(var(--gutter),env(safe-area-inset-left));padding-right:max(var(--gutter),env(safe-area-inset-right));width:100%}
@media(min-width:1440px){.wrap{max-width:1240px}}
.main{flex:1;padding-top:24px;padding-bottom:40px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.break{word-break:break-word;overflow-wrap:anywhere}
.inline{display:inline}
.right{text-align:right}
.center{text-align:center}
.mt{margin-top:16px}.mb{margin-bottom:16px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.row-tight{gap:6px}
.row-center{justify-content:center}
.row > form{margin:0}
.grow{flex:1 1 200px;min-width:0}
.auto{width:auto!important}
.spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:960px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.grid-2,.grid-3{grid-template-columns:1fr}}
@media(max-width:360px){.grid-4{grid-template-columns:1fr}}
.sep{border:0;border-top:1px solid var(--line);margin:20px 0}

/* Topbar */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;padding-top:env(safe-area-inset-top)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:var(--topbar);gap:12px}
.brand{font-weight:700;font-size:1.1rem;color:var(--text);display:flex;align-items:center;gap:8px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand:hover{text-decoration:none}
.brand-mark{display:inline-grid;place-items:center;flex:0 0 30px;width:30px;height:30px;border-radius:8px;background:var(--primary);color:#fff;font-weight:800}
.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--muted);font-weight:500}
.nav a.on,.nav a:hover{color:var(--text);text-decoration:none}
.nav-guest{gap:12px}
.coin-pill{background:var(--warn-soft);color:#8a5a00;padding:4px 10px;border-radius:999px;font-weight:600;font-size:.9rem;white-space:nowrap}
.coin-pill-mobile{display:none}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;line-height:1;cursor:pointer;padding:8px;margin-right:-8px;color:var(--text)}
@media(max-width:860px){
  .nav-toggle{display:block}
  .coin-pill-mobile{display:inline-block;margin-left:auto}
  .nav:not(.nav-guest){display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:8px var(--gutter) 16px;border-bottom:1px solid var(--line);gap:0;box-shadow:0 8px 16px rgba(16,24,40,.08);max-height:calc(100dvh - var(--topbar));overflow-y:auto}
  .nav:not(.nav-guest) a,.nav:not(.nav-guest) form{padding:12px 4px;border-bottom:1px solid var(--line)}
  .nav:not(.nav-guest) .coin-pill{display:none}
  .nav:not(.nav-guest) form{border-bottom:0}
  .nav-open .nav:not(.nav-guest){display:flex}
  .topbar{position:sticky}
  .topbar-inner{position:relative}
}

/* Cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;min-width:0}
.card + .card{margin-top:16px}
.grid > .card + .card{margin-top:0}
.card-flat{padding:0;overflow:hidden}
.card-head{padding:16px 18px}
.card-head h2{margin:0}
.card-head p{margin:4px 0 0}
.stat{display:flex;flex-direction:column;gap:4px}
.stat b{font-size:1.5rem;overflow-wrap:anywhere}
.stat b.stat-sm{font-size:1.1rem}
@media(max-width:600px){.card{padding:16px}.card-head{padding:14px 16px}.stat b{font-size:1.25rem}}

/* Forms */
label{display:block;font-weight:600;margin:0 0 6px;font-size:.9rem}
.field{margin-bottom:14px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=tel],select,textarea{
  width:100%;max-width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff;color:inherit;min-height:42px}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-soft);border-color:var(--primary)}
input:disabled{background:#f3f4f8;color:var(--muted)}
.hint{font-size:.82rem;color:var(--muted);margin-top:4px}
.input-group{display:flex;align-items:stretch;min-width:0}
.input-group input{border-top-right-radius:0;border-bottom-right-radius:0;min-width:0;flex:1 1 auto}
.input-group select,.input-group .addon{border-top-left-radius:0;border-bottom-left-radius:0;border-left:0;width:auto;min-width:0;max-width:55%;flex:0 1 auto}
.addon{display:flex;align-items:center;padding:0 12px;background:#f0f1f5;border:1px solid var(--line);border-radius:10px}
.check{display:flex;gap:8px;align-items:flex-start;font-weight:500}
.check input{margin-top:3px;flex:0 0 auto}
.check-grid{gap:10px}
.check-card{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:0;background:#fff}
/* Hindari zoom otomatis iOS saat fokus ke input (butuh font ≥16px) */
@media(max-width:860px){input,select,textarea{font-size:16px!important}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--primary);color:#fff;border:0;border-radius:10px;padding:10px 16px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;min-height:42px;touch-action:manipulation}
.btn:hover{background:var(--primary-d);text-decoration:none}
.btn-sm{padding:6px 12px;font-size:.88rem;min-height:34px}
.btn-block{width:100%}
@media(max-width:600px){.btn-block-sm{width:100%}}
.btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{background:#f3f4f8}
.btn-danger{background:var(--err)}
.btn-danger:hover{background:#b3261e}
.btn-ok{background:var(--ok)}
.btn-ok:hover{background:#0b7a44}
.btn:disabled{opacity:.5;cursor:not-allowed}
button.link{background:none;border:0;color:var(--muted);font:inherit;font-weight:500;cursor:pointer;padding:0;text-align:left}
button.link:hover{color:var(--err)}

/* Alerts & badges */
.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px;border:1px solid transparent;overflow-wrap:anywhere}
.alert-success{background:var(--ok-soft);color:#0b6b3c;border-color:#bfe6d0}
.alert-error{background:var(--err-soft);color:#9b1c14;border-color:#f5c2bd}
.alert-warning{background:var(--warn-soft);color:#7a5200;border-color:#f1dcae}
.alert-info{background:var(--primary-soft);color:#3730a3;border-color:#d6d9ff}
.alert a{font-weight:600}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.78rem;font-weight:600;background:#eef0f4;color:var(--muted);white-space:nowrap}
.badge-ok{background:var(--ok-soft);color:#0b6b3c}
.badge-warn{background:var(--warn-soft);color:#7a5200}
.badge-err{background:var(--err-soft);color:#9b1c14}
.badge-info{background:var(--primary-soft);color:#3730a3}

/* Tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#fafbfc;white-space:nowrap}
tr:last-child td{border-bottom:0}
/* Tabel bertumpuk (kartu) di layar kecil: <table class="stack">, label diisi app.js dari header */
@media(max-width:700px){
  table.stack,table.stack tbody,table.stack tr,table.stack td{display:block;width:100%}
  table.stack tr:first-child:has(th),table.stack thead{display:none}
  table.stack tr.stack-head{display:none}
  table.stack tr{border-bottom:1px solid var(--line);padding:8px 16px}
  table.stack tr:last-child{border-bottom:0}
  table.stack td{border:0;padding:6px 0 6px calc(34% + 10px);position:relative;text-align:left;min-height:32px;overflow-wrap:anywhere}
  table.stack td::before{content:attr(data-label);position:absolute;left:0;top:8px;width:34%;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);line-height:1.3}
  table.stack td[colspan]{padding-left:0;text-align:center}
  table.stack td[colspan]::before{content:none}
  table.stack td:not([data-label]),table.stack td[data-label=""]{padding-left:0}
  table.stack td:not([data-label])::before,table.stack td[data-label=""]::before{content:none}
  table.stack td.td-actions{padding-left:0;padding-top:26px}
  table.stack td.td-actions::before{top:6px;width:auto}
  table.stack td input[type=number],table.stack td input[type=text]{width:100%!important}
}

/* Mailbox list */
.mb-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.mb-item > div:first-child{flex:1 1 240px;min-width:0}
.mb-item:last-child{border-bottom:0}
.mb-addr{font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;word-break:break-all}
.mb-addr-lg{font-size:clamp(1rem,.9rem + 1vw,1.25rem)}
.copy-btn{cursor:pointer}
@media(max-width:600px){.mb-item{padding:14px 16px}}

/* Inbox */
.msg-list a{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr) auto;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line);color:var(--text)}
.msg-list a:last-child{border-bottom:0}
.msg-list a:hover{background:#fafbff;text-decoration:none}
.msg-list a.unread{font-weight:700}
.msg-list .from,.msg-list .subj{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg-list .date{color:var(--muted);font-size:.85rem;white-space:nowrap}
@media(max-width:700px){
  .msg-list a{grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;padding:12px 16px}
  .msg-list .subj{grid-column:1/-1;grid-row:2;font-size:.92rem}
}
.empty{padding:40px 18px;text-align:center;color:var(--muted)}
.msg-frame{display:block;width:100%;border:0;min-height:160px;height:300px;background:#fff;border-radius:8px}
.msg-head{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}
.msg-head h1{overflow-wrap:anywhere}
.msg-text{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;margin:0}
.att{display:inline-flex;gap:6px;align-items:center;padding:6px 10px;border:1px solid var(--line);border-radius:8px;margin:4px 6px 0 0;font-size:.88rem;max-width:100%;overflow-wrap:anywhere}
.fwd-select{width:auto;min-width:200px;max-width:100%}
@media(max-width:600px){.fwd-form{width:100%}.fwd-form .fwd-select{flex:1 1 100%;min-width:0}.fwd-form .btn{flex:1 1 auto}}

/* Packages & payment methods */
.pkg{border:2px solid var(--line);border-radius:var(--radius);padding:16px;cursor:pointer;display:block;background:#fff;transition:border-color .15s,background .15s;margin:0;font-weight:400;min-width:0}
.pkg:hover{border-color:#c7cbe0}
.pkg input{position:absolute;opacity:0;pointer-events:none}
.pkg.is-checked,.pkg:has(input:checked){border-color:var(--primary);background:var(--primary-soft)}
.pkg:focus-within{outline:2px solid var(--primary-soft);outline-offset:2px}
.pkg .pkg-title{font-weight:700;overflow-wrap:anywhere}
.pkg .pkg-price{font-size:1.2rem;font-weight:700;margin-top:4px}
@media(max-width:600px){.pkg{padding:12px}.pkg .pkg-price{font-size:1.05rem}}
.pay-method-row{display:flex;align-items:center;gap:10px}
.pay-method-row img{width:44px;height:28px;object-fit:contain;flex:0 0 44px}
.pay-method-off{display:none;color:var(--err);margin-top:4px}
.pay-method.is-off{opacity:.55;cursor:not-allowed;background:#fafbfc}
.pay-method.is-off .pay-method-off{display:block}

/* Invoice */
.pay-box{max-width:460px;margin:0 auto}
.pay-box > .card + .card{margin-top:16px}
.big-icon{font-size:3rem;line-height:1.2}
.qris-frame{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;display:inline-block;width:100%;max-width:320px}
.qris-title{font-weight:800;letter-spacing:2px;margin-bottom:6px}
#qrcode img{display:block;margin:0 auto;width:100%;max-width:288px;height:auto;image-rendering:pixelated}
.code-box{background:#fafbfc;border:1px dashed #c7cbe0;border-radius:12px;padding:14px}
.code-value{font-size:clamp(1.2rem,1rem + 2vw,1.6rem);font-weight:800;letter-spacing:1px;margin:4px 0 8px;overflow-wrap:anywhere}
.amount-big{font-size:clamp(1.6rem,1.3rem + 2vw,2.1rem);font-weight:800;letter-spacing:.5px}
.countdown{font-weight:700}
details.guide{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px}
details.guide summary{cursor:pointer;font-weight:600}
details.guide ol{margin:8px 0 0;padding-left:20px}

/* Hero */
.hero{text-align:center;padding:clamp(16px,5vw,40px) 0 24px}
.hero h1{font-size:clamp(1.6rem,1.1rem + 2.6vw,2.4rem);line-height:1.2}
.hero p{font-size:clamp(1rem,.95rem + .3vw,1.1rem);color:var(--muted);max-width:620px;margin:12px auto 24px}
@media(max-width:480px){.hero h1 br{display:none}.hero .row .btn{flex:1 1 100%}}
.features .card h3{display:flex;gap:8px;align-items:center}
.auth-box{max-width:420px;margin:24px auto}
@media(max-width:480px){.auth-box{margin:8px auto}}

/* Admin */
.admin-tabs{display:flex;gap:6px;margin-bottom:20px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-bottom:2px}
.admin-tabs::-webkit-scrollbar{display:none}
.admin-tabs a{padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500;white-space:nowrap;flex:0 0 auto}
.admin-tabs a.on{background:var(--primary);border-color:var(--primary);color:#fff}
.admin-tabs a:hover{text-decoration:none}
pre.code{background:#0f172a;color:#e2e8f0;padding:12px 14px;border-radius:10px;overflow-x:auto;font-size:.85rem;white-space:pre-wrap;word-break:break-all}

.footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:.85rem;padding-top:20px;padding-bottom:max(20px,env(safe-area-inset-bottom));border-top:1px solid var(--line)}

@media print{.topbar,.footer,.nav-toggle{display:none}}