:root{
  --paper:#F6F6F3;
  --card:#FFFFFF;
  --ink:#16171A;
  --slate:#6B6F76;
  --rule:#DFDFD8;
  --ledger:#1F6F4A;
  --ledger-soft:#E8F2EC;
  --amber:#B07D16;
  --amber-soft:#FBF2DF;
  --sans:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --serif:"IBM Plex Serif",Georgia,serif;
}
*{box-sizing:border-box}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:14px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--ledger);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---------- shell ---------- */
.app{display:grid;grid-template-columns:212px 1fr;min-height:100vh}

.side{
  background:var(--ink);color:#E7E7E2;padding:20px 14px;
  display:flex;flex-direction:column;gap:26px;
}
.wordmark{font-family:var(--serif);font-weight:700;font-size:19px;letter-spacing:-.01em;padding:0 8px}
.wordmark span{color:#7FB79A}
.navgroup{display:flex;flex-direction:column;gap:2px}
.navlabel{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:#75787E;padding:0 8px 6px;
}
.navbtn{
  background:none;border:0;text-align:left;padding:8px 10px;border-radius:5px;
  color:#B9BAB6;display:flex;justify-content:space-between;align-items:center;
  transition:background .12s,color .12s;
}
.navbtn:hover{background:#242629;color:#F2F2EE}
.navbtn[aria-current="true"]{background:#2C2F33;color:#fff;font-weight:500}
.navbtn em{font-family:var(--mono);font-style:normal;font-size:11px;color:#75787E}
.sidefoot{margin-top:auto;padding:0 8px;font-size:11px;color:#75787E;line-height:1.6}

.main{display:flex;flex-direction:column;min-width:0}

/* ---------- the meter (signature) ---------- */
.meter{
  background:var(--card);border-bottom:1px solid var(--rule);
  padding:12px 26px;display:flex;align-items:center;gap:26px;flex-wrap:wrap;
}
.meter-title{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}
.meter-figs{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap}
.fig{display:flex;flex-direction:column;gap:1px}
.fig b{font-family:var(--mono);font-size:19px;font-weight:600;letter-spacing:-.02em}
.fig small{font-size:11px;color:var(--slate)}
.fig.total b{color:var(--ledger)}
.gauge{flex:1;min-width:150px;height:5px;background:var(--rule);border-radius:3px;overflow:hidden}
.gauge i{display:block;height:100%;background:var(--ledger);width:24%;transition:width .3s}

/* ---------- content ---------- */
/* In the mockup all five screens lived in one file and were toggled with JS.
   Here each screen is its own page, so a screen is simply always shown. */
.screen{padding:26px;display:block;max-width:1080px}
h1{font-family:var(--serif);font-size:25px;font-weight:700;margin:0 0 4px;letter-spacing:-.015em}
.sub{color:var(--slate);margin:0 0 22px;max-width:60ch}

.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:1.35fr 1fr}
.card{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:16px}
.stat b{display:block;font-family:var(--mono);font-size:24px;font-weight:600;letter-spacing:-.02em;margin-bottom:2px}
.stat span{font-size:11px;color:var(--slate);text-transform:uppercase;letter-spacing:.08em;font-family:var(--mono)}

.compare{background:var(--ledger-soft);border:1px solid #C6DED2;border-radius:8px;padding:16px 18px;margin-top:14px}
.compare h3{margin:0 0 10px;font-size:13px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ledger)}
.crow{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed #C6DED2;font-size:13px}
.crow:last-child{border:0}
.crow b{font-family:var(--mono)}
.crow.us b{color:var(--ledger)}
.crow.them b{color:var(--slate);text-decoration:line-through}

h2{font-size:13px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin:26px 0 10px;font-weight:500}

table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--rule);border-radius:8px;overflow:hidden}
th{
  text-align:left;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--slate);font-weight:500;padding:9px 14px;border-bottom:1px solid var(--rule);background:#FAFAF8;
}
td{padding:10px 14px;border-bottom:1px solid #EFEFEA;font-size:13px}
tr:last-child td{border-bottom:0}
td.num{font-family:var(--mono)}
.tag{display:inline-block;background:#F0F0EB;border:1px solid var(--rule);border-radius:3px;padding:1px 6px;font-size:11px;font-family:var(--mono);margin-right:3px}
.pill{font-family:var(--mono);font-size:11px;padding:2px 7px;border-radius:3px}
.pill.live{background:var(--ledger-soft);color:var(--ledger)}
.pill.draft{background:#F0F0EB;color:var(--slate)}
.pill.warn{background:var(--amber-soft);color:var(--amber)}

.segs{display:flex;flex-direction:column;gap:3px}
.seg{
  background:none;border:1px solid transparent;border-radius:5px;padding:8px 10px;text-align:left;
  display:flex;justify-content:space-between;align-items:center;
}
.seg:hover{background:#EFEFEA}
.seg[aria-pressed="true"]{background:var(--card);border-color:var(--ledger);font-weight:500}
.seg em{font-family:var(--mono);font-style:normal;font-size:12px;color:var(--slate)}

/* composer */
.field{margin-bottom:13px}
.field label{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin-bottom:5px}
.field input,.field select{
  width:100%;padding:8px 10px;border:1px solid var(--rule);border-radius:5px;
  font:inherit;background:var(--card);
}
.preview{background:var(--card);border:1px solid var(--rule);border-radius:8px;overflow:hidden}
.preview-bar{background:#FAFAF8;border-bottom:1px solid var(--rule);padding:7px 12px;font-family:var(--mono);font-size:11px;color:var(--slate)}
.preview-body{padding:20px}
.preview-body h4{font-family:var(--serif);font-size:18px;margin:0 0 8px}
.preview-body p{margin:0 0 10px;font-size:13px;color:#3A3D42}
.fakebtn{display:inline-block;background:var(--ink);color:#fff;padding:8px 14px;border-radius:4px;font-size:13px}

.cost{
  border:1px solid var(--ledger);background:var(--ledger-soft);border-radius:8px;padding:14px;margin-top:14px;
}
.cost .big{font-family:var(--mono);font-size:27px;font-weight:600;color:var(--ledger);letter-spacing:-.02em}
.cost .brk{font-family:var(--mono);font-size:11px;color:#3F6B57;margin-top:5px;line-height:1.7}

/* automation flow */
.flow{display:flex;flex-direction:column;gap:0;max-width:520px}
.node{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:13px 15px;position:relative}
.node b{display:block;font-size:13px;margin-bottom:2px}
.node span{font-size:12px;color:var(--slate)}
.node .kind{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);display:block;margin-bottom:5px}
.node.host{border-color:var(--ledger);background:var(--ledger-soft)}
.node.host .kind{color:var(--ledger)}
.link{height:20px;width:1px;background:var(--rule);margin-left:26px}

.filecard{display:flex;align-items:center;gap:11px;padding:11px;border:1px solid var(--rule);border-radius:6px;background:#FAFAF8;margin-top:9px}
.filecard .ext{font-family:var(--mono);font-size:10px;background:var(--ink);color:#fff;padding:4px 6px;border-radius:3px}
.filecard small{color:var(--slate);font-size:11px;display:block}

/* forms */
.formprev{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:22px;max-width:340px}
.formprev h4{font-family:var(--serif);font-size:17px;margin:0 0 5px}
.formprev p{font-size:12px;color:var(--slate);margin:0 0 13px}
.formprev .inp{border:1px solid var(--rule);border-radius:5px;padding:8px 10px;font-size:12px;color:#9A9E9E;margin-bottom:8px}
.formprev .sub{background:var(--ink);color:#fff;text-align:center;padding:9px;border-radius:5px;font-size:13px;margin:0}

.note{font-size:12px;color:var(--slate);margin-top:11px;font-style:italic}
.bar{height:6px;background:#EFEFEA;border-radius:3px;overflow:hidden;margin-top:5px}
.bar i{display:block;height:100%;background:var(--ink)}

@media(max-width:840px){
  .app{grid-template-columns:1fr}
  .side{flex-direction:row;align-items:center;gap:14px;overflow-x:auto;padding:12px}
  .navgroup{flex-direction:row}
  .navlabel,.sidefoot,.navbtn em{display:none}
  .g4,.g2{grid-template-columns:1fr}
  .screen{padding:18px}
}

/* ==========================================================================
   App additions — everything above this line came from plainsend-mockup.html.
   These are the pieces a working app needs that a static mockup did not:
   real links, buttons, forms, and messages.
   ========================================================================== */

/* Sidebar items are real links now, not buttons. */
a.navbtn{text-decoration:none}

.btn{
  display:inline-block;background:var(--ink);color:#fff;border:1px solid var(--ink);
  padding:9px 15px;border-radius:5px;font-size:13px;text-decoration:none;font-weight:500;
}
.btn:hover{background:#2C2F33}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.ghost{background:none;color:var(--ink);border-color:var(--rule)}
.btn.ghost:hover{background:#EFEFEA}
.btn.go{background:var(--ledger);border-color:var(--ledger)}
.btn.go:hover{background:#175838}

.field textarea{
  width:100%;padding:10px;border:1px solid var(--rule);border-radius:5px;
  font:inherit;background:var(--card);min-height:190px;resize:vertical;line-height:1.6;
}
.field input[type=file]{padding:7px;background:var(--card)}
.hint{font-size:11px;color:var(--slate);margin-top:4px}

.flash{
  border-radius:6px;padding:11px 14px;margin-bottom:16px;font-size:13px;
  border:1px solid var(--rule);background:var(--card);
}
.flash.ok{background:var(--ledger-soft);border-color:#C6DED2;color:#1B4F36}
.flash.warn{background:var(--amber-soft);border-color:#E7D3A4;color:#6E4E0C}
.flash b{display:block;margin-bottom:2px}

.empty{
  background:var(--card);border:1px dashed var(--rule);border-radius:8px;
  padding:26px;text-align:center;color:var(--slate);
}
.empty b{display:block;color:var(--ink);margin-bottom:4px;font-size:14px}

.rowsplit{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.actions{display:flex;gap:8px;align-items:center;margin-top:16px;flex-wrap:wrap}
.pill.fail{background:#FBE9E7;color:#A33A22}
.stat b.quiet{color:var(--slate)}

/* ---------- public pages (unsubscribe) ----------
   Seen by recipients rather than by the account owner, so they have no
   sidebar, no meter, and nothing to sign in to. */
body.public{
  display:flex;align-items:center;justify-content:center;
  min-height:100vh;padding:24px;
}
.publiccard{
  background:var(--card);border:1px solid var(--rule);border-radius:10px;
  padding:34px;max-width:460px;width:100%;
}
.publiccard h1{font-size:22px;margin-bottom:12px}
.publiccard .lead{font-size:14px;line-height:1.6;margin:0 0 20px}
.publiccard .fineprint{font-size:12px;color:var(--slate);line-height:1.6;margin:18px 0 0}
.publiccard form{margin:0}

/* Signed-in identity and sign-out, at the foot of the sidebar. */
.signedin{margin-top:12px;padding-top:12px;border-top:1px solid #2C2F33}
.signedin span{
  display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:#9A9C98;margin-bottom:5px;
}
.signedin form{margin:0}
.signedin button{
  background:none;border:1px solid #3A3D42;border-radius:4px;color:#B9BAB6;
  padding:4px 9px;font-size:11px;
}
.signedin button:hover{background:#2C2F33;color:#fff}
@media(max-width:840px){
  .signedin{margin-top:0;padding-top:0;border-top:0;margin-left:auto}
  .signedin span{display:none}
}