:root{
  --ink:#0f1826;          /* deep navy base */
  --ink-2:#16233a;        /* panel */
  --ink-3:#1e3050;        /* raised */
  --line:#28395a;         /* borders */
  --paper:#f5f7fb;        /* light content bg */
  --card:#ffffff;
  --text:#182338;
  --muted:#5f6b82;
  --faint:#93a0b8;
  --amber:#ffb020;        /* signal accent */
  --amber-deep:#e08a00;
  --green:#1fae82;
  --red:#e0574d;
  --blue:#3d7bf5;
  --violet:#7a6ff0;
  --radius:14px;
  --shadow:0 1px 2px rgba(16,24,38,.06),0 8px 24px rgba(16,24,38,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Inter',system-ui,sans-serif;background:var(--paper);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}

/* ---- shell ---- */
.shell{display:flex;min-height:100vh}
.rail{width:236px;background:var(--ink);color:#c6d2e8;display:flex;flex-direction:column;padding:22px 16px;position:sticky;top:0;height:100vh;flex-shrink:0}
.brand{display:flex;align-items:center;gap:11px;padding:4px 8px 22px}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--amber),var(--amber-deep));color:var(--ink);font-family:'Space Grotesk';font-weight:700;font-size:20px;display:grid;place-items:center;box-shadow:0 4px 14px rgba(255,176,32,.3)}
.brand-name{font-family:'Space Grotesk';font-weight:600;font-size:18px;color:#fff;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.14em;margin-top:1px}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;font-size:14px;font-weight:500;color:#a9b6cf;transition:.16s}
.nav-item .dot{width:6px;height:6px;border-radius:50%;background:#3a4d70;transition:.16s}
.nav-item:hover{background:var(--ink-2);color:#e4ebf7}
.nav-item.active{background:var(--ink-3);color:#fff}
.nav-item.active .dot{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.logout{margin-top:auto;padding:10px 12px;font-size:13px;color:var(--faint);border-top:1px solid var(--line);padding-top:16px}
.logout:hover{color:#e4ebf7}
.content{flex:1;padding:34px 40px 60px;max-width:1180px;margin:0 auto;width:100%}

/* ---- headers ---- */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:26px;flex-wrap:wrap;gap:14px}
.page-title{font-family:'Space Grotesk';font-size:28px;font-weight:600;letter-spacing:-.02em;margin:0}
.page-sub{color:var(--muted);font-size:14px;margin:5px 0 0}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-deep);margin-bottom:7px}

/* ---- flash ---- */
.flash{background:#fff7e6;border:1px solid #ffe2a8;color:#7a5300;padding:12px 16px;border-radius:11px;font-size:14px;margin-bottom:22px;display:flex;gap:9px;align-items:center}
.flash::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--amber-deep);flex-shrink:0}

/* ---- stat cards ---- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-bottom:26px}
.stat{background:var(--card);border:1px solid #e7ecf4;border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow)}
.stat-label{font-size:12px;color:var(--muted);font-weight:500;letter-spacing:.01em}
.stat-value{font-family:'Space Grotesk';font-size:30px;font-weight:600;letter-spacing:-.02em;margin-top:8px;line-height:1;font-feature-settings:'tnum'}
.stat-value.mono{font-family:'JetBrains Mono';font-size:24px}
.stat-foot{font-size:12px;color:var(--faint);margin-top:7px}
.stat.accent{background:linear-gradient(150deg,var(--ink),var(--ink-3));border:none;color:#fff}
.stat.accent .stat-label{color:#a9b6cf}
.stat.accent .stat-value{color:#fff}
.stat.accent .stat-foot{color:var(--amber)}

/* ---- panels ---- */
.panel{background:var(--card);border:1px solid #e7ecf4;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:22px;overflow:hidden}
.panel-head{padding:18px 22px;border-bottom:1px solid #eef1f7;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.panel-title{font-family:'Space Grotesk';font-size:17px;font-weight:600;margin:0}
.panel-body{padding:22px}
.panel-body.flush{padding:0}

/* ---- tables ---- */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;padding:11px 22px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);font-weight:600;border-bottom:1px solid #eef1f7;background:#fafbfd}
td{padding:12px 22px;border-bottom:1px solid #f1f4f9;color:var(--text)}
tr:last-child td{border-bottom:none}
tr:hover td{background:#fafbfe}
.mono{font-family:'JetBrains Mono';font-feature-settings:'tnum'}

/* ---- badges ---- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:600;letter-spacing:.01em}
.badge::before{content:'';width:5px;height:5px;border-radius:50%;background:currentColor}
.b-active,.b-running{background:#e4f7f0;color:#128063}
.b-draft{background:#eef1f7;color:#5f6b82}
.b-paused{background:#fff2d9;color:#946200}
.b-completed{background:#e8eefe;color:#2f5fd0}
.b-sent{background:#e4f7f0;color:#128063}
.b-queued{background:#eef1f7;color:#5f6b82}
.b-bounced,.b-failed,.b-invalid{background:#fce8e6;color:#b23a30}
.b-unsubscribed{background:#f2eefe;color:#5a49c9}
.b-replied{background:#e8eefe;color:#2f5fd0}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:10px;font-size:13.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.15s;font-family:inherit;background:var(--ink);color:#fff}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(15,24,38,.18)}
.btn-amber{background:linear-gradient(140deg,var(--amber),var(--amber-deep));color:var(--ink)}
.btn-ghost{background:#fff;border-color:#dce2ec;color:var(--text)}
.btn-ghost:hover{border-color:#b9c3d4;box-shadow:none;transform:none;background:#f7f9fc}
.btn-sm{padding:6px 12px;font-size:12.5px}
.btn-danger{background:#fff;border-color:#f3d3d0;color:var(--red)}
.btn-danger:hover{background:#fdeceb;box-shadow:none;transform:none}
.btn-row{display:flex;gap:9px;flex-wrap:wrap;align-items:center}

/* ---- forms ---- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}
.field .hint{font-size:12px;color:var(--faint);font-weight:400;margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{
  width:100%;padding:10px 13px;border:1px solid #dce2ec;border-radius:10px;font-size:14px;font-family:inherit;background:#fff;color:var(--text);transition:.15s}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,176,32,.16)}
textarea{resize:vertical;min-height:150px;line-height:1.6}
.mono-input{font-family:'JetBrains Mono';font-size:13px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:500;cursor:pointer;padding:10px 0}
.check input{width:17px;height:17px;accent-color:var(--amber-deep)}

/* ---- progress ---- */
.bar{height:8px;background:#eef1f7;border-radius:20px;overflow:hidden}
.bar > span{display:block;height:100%;background:linear-gradient(90deg,var(--amber),var(--amber-deep));border-radius:20px;transition:width .5s}
.meter{display:flex;gap:2px;height:8px;border-radius:20px;overflow:hidden;background:#eef1f7}
.meter i{display:block;height:100%}

/* ---- funnel row ---- */
.funnel{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid #e7ecf4;border-radius:12px;overflow:hidden}
.funnel .cell{padding:16px 18px;border-right:1px solid #eef1f7}
.funnel .cell:last-child{border-right:none}
.funnel .fl{font-size:12px;color:var(--muted);font-weight:500}
.funnel .fv{font-family:'Space Grotesk';font-size:26px;font-weight:600;margin-top:6px;line-height:1}
.funnel .fp{font-size:12px;color:var(--amber-deep);font-weight:600;margin-top:4px}

/* ---- empty ---- */
.empty{text-align:center;padding:56px 20px;color:var(--muted)}
.empty h3{font-family:'Space Grotesk';color:var(--text);font-size:18px;margin:0 0 6px}
.empty p{margin:0 0 18px;font-size:14px}

/* ---- login ---- */
.login-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(1200px 600px at 70% -10%,#1c2c49,var(--ink))}
.login-card{width:370px;background:var(--card);border-radius:20px;padding:38px 34px;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.login-mark{width:52px;height:52px;border-radius:15px;background:linear-gradient(140deg,var(--amber),var(--amber-deep));color:var(--ink);font-family:'Space Grotesk';font-weight:700;font-size:27px;display:grid;place-items:center;margin-bottom:20px}
.login-card h1{font-family:'Space Grotesk';font-size:23px;margin:0 0 4px;letter-spacing:-.02em}
.login-card p{color:var(--muted);font-size:14px;margin:0 0 24px}
.login-err{background:#fce8e6;color:#b23a30;padding:10px 14px;border-radius:10px;font-size:13px;margin-bottom:16px}

.pill-tabs{display:flex;gap:6px;flex-wrap:wrap}
.pill-tabs a{padding:7px 13px;border-radius:20px;font-size:13px;font-weight:500;color:var(--muted);border:1px solid #e4e9f1}
.pill-tabs a.on{background:var(--ink);color:#fff;border-color:var(--ink)}

.code-chip{font-family:'JetBrains Mono';font-size:12.5px;background:#f0f3f9;padding:2px 7px;border-radius:6px;color:var(--ink-3)}

@media(max-width:820px){
  .rail{position:fixed;bottom:0;top:auto;width:100%;height:auto;flex-direction:row;padding:8px;z-index:50;justify-content:space-around}
  .brand,.logout{display:none}
  .nav{flex-direction:row;gap:2px;margin:0;width:100%;justify-content:space-around}
  .nav-item{flex-direction:column;gap:4px;font-size:11px;padding:6px 4px}
  .content{padding:20px 16px 90px}
  .grid-2{grid-template-columns:1fr}
  .funnel{grid-template-columns:repeat(2,1fr)}
}