:root{
  --bg:#f6f4fb;--panel:#ffffff;--ink:#1c1530;--mut:#6f6785;--line:#e6e1f1;--soft:#f1edf9;
  --acc:#5b2a9a;--acc-ink:#ffffff;--acc-soft:#ece4fa;
  --ok:#13774a;--ok-bg:#e0f4e9;--warn:#8f5b00;--warn-bg:#fdf0d3;--bad:#b0243a;--bad-bg:#fde4e8;
  --c1:#5b2a9a;--c2:#22a99b;--c3:#e0a100;
  --radius:12px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0f0a1a;--panel:#181126;--ink:#f0eafa;--mut:#a595c4;--line:#2f2446;--soft:#201733;
    --acc:#a98be0;--acc-ink:#140c22;--acc-soft:#2a1e45;
    --ok:#6fd7a0;--ok-bg:#12301f;--warn:#f1c76b;--warn-bg:#3a2b0d;--bad:#ff8fa3;--bad-bg:#3b1620;
    --c1:#a98be0;--c2:#3cc9ba;--c3:#f0b72f;color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0f0a1a;--panel:#181126;--ink:#f0eafa;--mut:#a595c4;--line:#2f2446;--soft:#201733;
  --acc:#a98be0;--acc-ink:#140c22;--acc-soft:#2a1e45;
  --ok:#6fd7a0;--ok-bg:#12301f;--warn:#f1c76b;--warn-bg:#3a2b0d;--bad:#ff8fa3;--bad-bg:#3b1620;
  --c1:#a98be0;--c2:#3cc9ba;--c3:#f0b72f;color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.5 Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
h1{font-size:24px;margin:0;letter-spacing:-.01em}
h2{font-size:17px;margin:0}
h3{font-size:15px;margin:0 0 8px}
a{color:var(--acc)}
small,.small{font-size:12.5px}
.mut{color:var(--mut)}
.hint{color:var(--mut);font-size:13px;margin:6px 0 0}
.row{display:flex;align-items:center}.gap{gap:10px}.end{justify-content:flex-end}.wrap{flex-wrap:wrap}.between{justify-content:space-between}

/* layout */
.app{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100vh}
.side{background:var(--panel);border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;padding:0 8px}
.brand.big{font-size:24px;justify-content:center;padding:0}
.logo{width:32px;height:32px;border-radius:9px;background:var(--acc);color:var(--acc-ink);display:inline-grid;place-items:center;font-weight:800}
.nav{display:flex;flex-direction:column;gap:2px}
.nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--ink);text-decoration:none;font-weight:600;font-size:14.5px}
.nav a:hover{background:var(--soft)}
.nav a.on{background:var(--acc-soft);color:var(--acc)}
.nav svg{width:18px;height:18px;flex:none}
.side-foot{margin-top:auto;font-size:12.5px;color:var(--mut);padding:0 8px}
.main{min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 28px;border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:5}
.cosel{display:flex;align-items:center;gap:10px}
.cosel label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--mut);font-weight:700}
.cosel select{min-width:200px}
.view{padding:28px;max-width:1180px;width:100%}
.loading{color:var(--mut);padding:40px 0;text-align:center}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.page-head p{margin:4px 0 0;color:var(--mut)}

/* cards and grids */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card.err{color:var(--bad);background:var(--bad-bg);border-color:transparent}
.grid{display:grid;gap:14px}
.kpis{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));margin-bottom:18px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.kpi .l{font-size:12.5px;color:var(--mut);font-weight:600}
.kpi .v{font-size:28px;font-weight:700;letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.kpi .s{font-size:12.5px;color:var(--mut)}
.cols2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}

/* forms */
label{display:block;font-weight:600;font-size:13.5px;margin:0 0 14px}
label>small{font-weight:400;color:var(--mut)}
input,select,textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--ink);font:inherit;font-weight:400}
input[type=checkbox],input[type=radio]{display:inline-block;width:auto;margin:0 8px 0 0}
input[type=color]{padding:2px;height:40px;width:70px}
input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid var(--acc);outline-offset:1px}
textarea{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.5;resize:vertical}
fieldset{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:0 0 14px}
legend{font-weight:600;font-size:13.5px;padding:0 6px}
.check{display:flex;align-items:center;font-weight:500;margin:4px 0;font-size:14px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font:inherit;font-weight:600;font-size:14px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--soft)}
.btn.primary{background:var(--acc);color:var(--acc-ink);border-color:var(--acc)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{color:var(--bad)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.sm{padding:5px 10px;font-size:13px}
.btn.full{width:100%}
.btn:disabled{opacity:.5;cursor:default}
.err-text{color:var(--bad);font-size:13.5px;min-height:20px;margin-bottom:8px}

/* tables */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--mut);font-weight:700;padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
tbody tr.click{cursor:pointer}
tbody tr.click:hover{background:var(--soft)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.empty{padding:36px;text-align:center;color:var(--mut)}
.empty h3{color:var(--ink)}

/* badges */
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:700;background:var(--soft);color:var(--mut)}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.badge.acc{background:var(--acc-soft);color:var(--acc)}
.bar{height:8px;border-radius:99px;background:var(--soft);overflow:hidden}
.bar>i{display:block;height:100%;background:var(--acc);border-radius:99px;transition:width .4s}

/* chart */
.chart{width:100%;height:auto;display:block}
.chart text{fill:var(--mut);font-size:11px}
.chart line{stroke:var(--line)}
.legend{display:flex;gap:16px;font-size:13px;color:var(--mut);margin-top:6px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}

/* checklist */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.steps li{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:10px}
.steps .n{width:26px;height:26px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-weight:700;font-size:13px;flex:none}
.steps li.done .n{background:var(--ok-bg);color:var(--ok)}
.steps li.done span.t{text-decoration:line-through;color:var(--mut)}
.steps a{margin-left:auto;font-weight:600;font-size:13.5px}

/* campaign editor */
.editor{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:start}
.sticky{position:sticky;top:76px}
.prev-head{font-weight:700;margin-bottom:10px}.prev-head span{font-weight:400;color:var(--mut);font-size:13px}
iframe.prev{width:100%;height:640px;border:1px solid var(--line);border-radius:10px;background:#fff}
.starters{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0;font-weight:400;font-size:13px;align-items:center}
.test-row{display:flex;gap:8px}.test-row input{margin-top:0}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.tab{padding:6px 12px;border-radius:99px;border:1px solid var(--line);background:var(--panel);font-size:13px;font-weight:600;cursor:pointer;color:var(--ink)}
.tab.on{background:var(--acc);color:var(--acc-ink);border-color:var(--acc)}
.tpls{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.tpl{border:1px solid var(--line);border-radius:10px;padding:10px;cursor:pointer;font-weight:600;font-size:13px;text-align:center;background:var(--panel);color:var(--ink)}
.tpl.on{border-color:var(--acc);background:var(--acc-soft);color:var(--acc)}
.sigprev{background:#fff;color:#222;border:1px solid var(--line);border-radius:10px;padding:20px;min-height:160px;overflow:auto}

/* modal and toast */
.overlay{position:fixed;inset:0;background:rgba(10,5,20,.55);display:flex;align-items:flex-start;justify-content:center;padding:max(24px,env(safe-area-inset-top,0px)) 16px 24px;overflow-y:auto;z-index:50}
.modal{background:var(--panel);border-radius:14px;width:100%;max-width:560px;border:1px solid var(--line);margin:auto 0}
.modal.wide{max-width:1000px}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-body{padding:20px}
.x{border:0;background:transparent;font-size:26px;line-height:1;color:var(--mut);cursor:pointer;padding:0 6px}
#toasts{position:fixed;right:16px;bottom:16px;display:grid;gap:8px;z-index:80;max-width:min(380px,calc(100vw - 32px))}
.toast{padding:12px 16px;border-radius:10px;background:var(--ink);color:var(--bg);font-weight:600;font-size:14px;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.toast.bad{background:var(--bad);color:#fff}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:16px}
.login-card{width:100%;max-width:400px;padding:30px}

/* mailbox colour dot */
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:0}

@media (max-width:900px){
  .app{grid-template-columns:minmax(0,1fr)}
  .side{min-width:0;position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;padding:10px 14px;gap:8px}
  .nav{flex-direction:row;overflow-x:auto;width:100%;order:3}
  .nav a{white-space:nowrap;padding:8px 10px}
  .side-foot{display:none}
  .top{padding:10px 14px;position:static}
  .view{padding:16px}
  .editor{grid-template-columns:1fr}
  .sticky{position:static}
  .two{grid-template-columns:1fr}
  .cosel select{min-width:0;max-width:52vw}
}

/* signature designer */
.sigwrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start}
@media (max-width:900px){.sigwrap{grid-template-columns:1fr}}

/* Write with AI */
.ai-btn{border-color:var(--acc);color:var(--acc);font-weight:700}
.ai-opts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ai-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}
.ai-card{border:1px solid var(--line);border-radius:10px;padding:10px;display:flex;flex-direction:column;gap:8px;min-width:0;background:var(--panel)}
.ai-card iframe{width:100%;height:340px;border:1px solid var(--line);border-radius:8px;background:#fff}
.ai-name{font-weight:700;font-size:13px;color:var(--acc)}
.ai-meta{font-size:13px;line-height:1.35;overflow-wrap:anywhere}
.ai-wait{padding:26px;text-align:center;color:var(--mut)}
.spin{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--acc);border-radius:50%;animation:sp .8s linear infinite;vertical-align:-2px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}
@media (max-width:760px){.ai-opts,.ai-grid{grid-template-columns:minmax(0,1fr)}}