/* app.css — light, clean, no framework. */
:root{
  --bg:#f5f6f8; --panel:#fff; --ink:#1d2330; --muted:#6b7280;
  --line:#e5e7eb; --brand:#2563eb; --brand-ink:#fff;
  --ok:#047857; --ok-bg:#ecfdf5; --err:#b91c1c; --err-bg:#fef2f2;
  --safe:#047857; --safe-bg:#ecfdf5; --burn:#b91c1c; --burn-bg:#fef2f2;
  --radius:10px;
}
*{box-sizing:border-box}
html{background:var(--bg)}              /* no white flash between page loads */
body{margin:0;font:15px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}

/* layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:#0f172a;color:#cbd5e1;display:flex;flex-direction:column;
  padding:18px 0;flex-shrink:0}
.sidebar .brand{font-weight:700;color:#fff;font-size:18px;padding:0 20px 16px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{color:#cbd5e1;padding:9px 20px;border-left:3px solid transparent}
.sidebar nav a:hover{background:#1e293b;text-decoration:none}
.sidebar nav a.active{background:#1e293b;border-left-color:var(--brand);color:#fff}
.sidebar-foot{padding:14px 20px 0;border-top:1px solid #1e293b;display:flex;
  flex-direction:column;gap:6px;font-size:13px}
.sidebar-foot a{color:#93c5fd}
.content{flex:1;padding:28px 34px;max-width:1100px}
.page-title{margin:0 0 18px;font-size:24px}

/* cards + grid */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.card.stat{display:block;text-decoration:none;color:inherit}
.card.stat:hover{border-color:var(--brand)}
.stat-num{font-size:30px;font-weight:700}
.stat-label{color:var(--muted);font-size:13px}
.card.hint{background:#eff6ff;border-color:#bfdbfe}

/* tables */
table{width:100%;border-collapse:collapse;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px}
th{background:#f9fafb;font-weight:600}
tr:last-child td{border-bottom:none}

/* badges */
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}
.badge.safe{color:var(--safe);background:var(--safe-bg)}
.badge.burn{color:var(--burn);background:var(--burn-bg)}

/* forms */
form label{display:block;margin:0 0 12px;font-size:14px;font-weight:500}
form input,form select,form textarea{display:block;width:100%;margin-top:4px;padding:9px 10px;
  border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
textarea{min-height:120px;font-family:ui-monospace,Menlo,Consolas,monospace}
button,.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);border:0;
  padding:10px 16px;border-radius:8px;font:inherit;font-weight:600;cursor:pointer}
button:hover,.btn:hover{filter:brightness(1.05);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:var(--err)}
button.linklike{background:none;border:0;color:var(--err);padding:0;font:inherit;cursor:pointer}
button.linklike:hover{text-decoration:underline}
code{background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:13px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row > *{flex:1;min-width:160px}

/* flash */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.err{background:var(--err-bg);color:var(--err)}

/* filter / inline bars */
.filterbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.filterbar input,.filterbar select{width:auto;margin-top:0;flex:0 1 auto}
.filterbar input[type=text]{min-width:220px}

/* checkbox grids in forms */
fieldset{border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin:0 0 14px}
legend{font-weight:600;font-size:13px;padding:0 6px}
.checkgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:6px}
.chk{font-weight:400;margin:0;display:flex;gap:6px;align-items:center}
.chk input{width:auto;margin:0}

/* list tree */
.tree{list-style:none;margin:0;padding-left:0}
.tree .tree{padding-left:22px;border-left:1px solid var(--line);margin-left:6px}
.tree li{padding:2px 0}
.treerow{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:6px 8px;border-radius:6px}
.treerow:hover{background:#f9fafb}
.treeacts{font-size:13px;white-space:nowrap}

/* tags */
.taglist{display:flex;flex-wrap:wrap;gap:8px}
.tagchip{background:#eef2ff;color:#3730a3;border-radius:999px;padding:3px 10px;font-size:13px;
  display:inline-flex;align-items:center;gap:4px}
.tagchip .linklike{color:#3730a3}

/* pager */
.pager{margin-top:14px}
.pager a{padding:5px 10px;border:1px solid var(--line);border-radius:6px;margin-right:4px;display:inline-block}
.pager a.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* builder */
.builder{display:flex;gap:18px;align-items:flex-start}
.builder-left{flex:1;min-width:0}
.builder-right{width:420px;flex-shrink:0;position:sticky;top:18px}
.palette{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.palette .btn{padding:6px 10px;font-size:13px}
.block-card{padding:12px 14px}
.block-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.block-acts button{background:#fff;border:1px solid var(--line);border-radius:6px;
  cursor:pointer;font-size:13px;padding:2px 8px;margin-left:4px}
.block-acts .linklike{border:0}
#preview{width:100%;height:560px;border:1px solid var(--line);border-radius:8px;margin-top:10px;background:#fff}
@media(max-width:900px){.builder{flex-direction:column}.builder-right{width:100%;position:static}}

/* docs / help page */
.docs{max-width:820px}
.docs .card h2{margin-top:0;font-size:19px}
.docs h2[id]{scroll-margin-top:14px}
.docs ul,.docs ol{margin:8px 0;padding-left:22px}
.docs li{margin:4px 0}
.docs .card:first-child a{margin-right:4px;white-space:nowrap}

/* compose */
.compose{max-width:780px}
.seg{display:inline-flex;background:#eef0f4;border-radius:999px;padding:3px;gap:2px;margin:4px 0 12px}
.seg button{background:transparent;color:var(--muted);border:0;padding:7px 18px;border-radius:999px;
  font-size:13px;font-weight:600;cursor:pointer}
.seg button:hover{filter:none;color:var(--ink)}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(15,23,42,.12)}
.wys-toolbar{display:flex;flex-wrap:wrap;gap:4px;padding:8px;background:#f9fafb;
  border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0}
.wys-toolbar button{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:6px;
  padding:5px 10px;font-size:13px;font-weight:500;min-width:34px}
.wys-toolbar button:hover{border-color:var(--brand);color:var(--brand);filter:none}
.wys{min-height:300px;max-height:560px;overflow:auto;padding:16px 18px;background:#fff;
  border:1px solid var(--line);border-radius:0 0 8px 8px;font-size:15px;line-height:1.6}
.wys:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.wys p{margin:0 0 10px}
.wys h2{font-size:20px;margin:14px 0 8px}
.wys blockquote{margin:10px 0;padding:6px 14px;border-left:3px solid var(--line);color:var(--muted)}
.wys a{color:var(--brand);text-decoration:underline}
.wys hr{border:0;border-top:1px solid var(--line);margin:14px 0}
.compose-opts{display:flex;flex-direction:column;gap:8px;margin-top:14px;padding-top:14px;
  border-top:1px solid var(--line)}
.msg-preview{width:100%;height:520px;border:0;background:#f4f4f7;border-radius:8px}

/* sequences */
.seq-timeline{position:relative;margin:6px 0 0;padding-left:46px}
.seq-timeline::before{content:"";position:absolute;left:17px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(37,99,235,.12))}
.seq-step{position:relative;margin-bottom:14px}
.seq-step .card{margin-bottom:0;transition:box-shadow .12s ease, border-color .12s ease}
.seq-step:hover .card{border-color:var(--brand);box-shadow:0 2px 10px rgba(15,23,42,.07)}
.seq-num{position:absolute;left:-46px;top:14px;width:36px;height:36px;border-radius:999px;
  background:#fff;border:2px solid var(--brand);color:var(--brand);font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:15px}
.seq-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:8px;font-size:13px}
.chip{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}
.chip-wait{background:#eef2ff;color:#3730a3}
.chip-always{background:#f1f5f9;color:#475569}
.chip-noopen{background:#fffbeb;color:#b45309}
.chip-noclick{background:#eff6ff;color:#1d4ed8}
.chip-active{background:var(--ok-bg);color:var(--ok)}
.chip-paused{background:#f1f5f9;color:#475569}
.chip-done{background:#eff6ff;color:#1d4ed8}
.chip-stopped{background:var(--err-bg);color:var(--err)}
.funnel{display:flex;height:10px;border-radius:999px;overflow:hidden;background:#eef0f4;
  min-width:160px;flex:1;max-width:320px}
.funnel span{display:block;height:100%}
.funnel .f-sent{background:#bfdbfe}
.funnel .f-open{background:#60a5fa}
.funnel .f-click{background:var(--brand)}
.funnel-row{display:flex;align-items:center;gap:12px;font-size:13px;margin:4px 0}
.funnel-row .muted{white-space:nowrap}

/* bare (setup/login) */
.bare{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.bare-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:30px;width:100%;max-width:380px}
.bare-card h1{margin:0 0 6px;font-size:22px}
.bare-card button{width:100%;margin-top:6px}