/* SimpleSend - one stylesheet, no framework. Colors are tokens so dark mode is a single override. */
:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f1f3f8;
  --border: #e3e6ef;
  --text: #171a24;
  --muted: #687089;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef0ff;
  --green: #12805c;  --green-soft: #e3f6ee;
  --amber: #a65f00;  --amber-soft: #fff3df;
  --red: #c4314b;    --red-soft: #fde8ec;
  --blue: #2563eb;   --blue-soft: #e6efff;
  --sidebar: #11131c;
  --sidebar-text: #a8aec2;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f16; --surface: #151824; --surface-2: #1c2030; --border: #272c3d;
    --text: #e8eaf2; --muted: #8b92a8;
    --primary: #7c74ff; --primary-hover: #918aff; --primary-soft: #23224a;
    --green: #3ccf95; --green-soft: #12301f;  --amber: #f0aa45; --amber-soft: #33240c;
    --red: #ff6b85; --red-soft: #3a1720;      --blue: #6aa1ff; --blue-soft: #15233f;
    --sidebar: #0a0c12; --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg); color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }
h1 { font-size: 22px; font-weight: 700; }
h2 { font-size: 16px; font-weight: 650; }
h3 { font-size: 14px; font-weight: 650; }
p { margin: 0 0 .75rem; }
code { font: 12.5px ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--surface-2); padding: 1px 5px; border-radius: 5px; }
svg.i { width: 16px; height: 16px; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- layout ---------- */
.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.sidebar { background: var(--sidebar); color: var(--sidebar-text); padding: 20px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 16px; padding: 0 10px 22px; }
.brand-mark { width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(135deg, #6d63ff, #3b82f6); display: grid; place-items: center; }
.brand-mark svg.i { color: #fff; width: 17px; height: 17px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { display: flex; align-items: center; gap: 11px; padding: 9px 12px; border-radius: 8px; color: var(--sidebar-text); font-weight: 500; }
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; text-decoration: none; }
.nav a.active { background: rgba(124,116,255,.18); color: #fff; }
.nav a.active svg.i { color: #9d97ff; }
.sidebar-foot { margin-top: auto; padding: 12px 10px 0; border-top: 1px solid rgba(255,255,255,.08); font-size: 12.5px; }
.sidebar-foot .who { color: #fff; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 6px; }
.sidebar-foot a { color: var(--sidebar-text); display: inline-flex; gap: 6px; align-items: center; }
.main { padding: 28px 36px 60px; max-width: 1240px; width: 100%; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head p { color: var(--muted); margin: 4px 0 0; max-width: 680px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---------- cards & grids ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.card-head .sub { color: var(--muted); font-size: 12.5px; font-weight: 400; }
.card-body { padding: 18px; }
.card-body.flush { padding: 0; }
.grid { display: grid; gap: 16px; }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat .label { color: var(--muted); font-size: 12.5px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 6px; letter-spacing: -.02em; }
.stat .foot { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.stats { margin-bottom: 18px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; padding: 10px 18px; background: var(--surface-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 12px 18px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tr:hover td { background: color-mix(in srgb, var(--surface-2) 45%, transparent); }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.cell-main { font-weight: 600; }
.cell-sub { color: var(--muted); font-size: 12.5px; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 36px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--green); border-color: var(--green); color: #fff; }
.btn-danger { color: var(--red); }
.btn-danger:hover { background: var(--red-soft); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12.5px; border-radius: 7px; }
.btn-lg { height: 42px; padding: 0 20px; font-size: 15px; }
.btn-block { width: 100%; }
form.inline { display: inline-flex; gap: 6px; margin: 0; align-items: center; }

/* toggle switch (a submit button styled as a switch) */
.switch { display: inline-flex; align-items: center; gap: 8px; background: none; border: 0; padding: 0; cursor: pointer; font: inherit; color: var(--text); font-size: 13px; font-weight: 500; }
.switch .track { width: 36px; height: 20px; border-radius: 99px; background: var(--border); position: relative; transition: background .15s; }
.switch .track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25); transition: left .15s; }
.switch.on .track { background: var(--green); }
.switch.on .track::after { left: 18px; }

/* ---------- badges ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .8; }
.badge.plain::before { display: none; }
.badge.green, .badge.running, .badge.ok, .badge.live { background: var(--green-soft); color: var(--green); }
.badge.amber, .badge.paused, .badge.warn { background: var(--amber-soft); color: var(--amber); }
.badge.red, .badge.fail, .badge.failed, .badge.bounced, .badge.unsubscribed { background: var(--red-soft); color: var(--red); }
.badge.blue, .badge.done, .badge.ai { background: var(--blue-soft); color: var(--blue); }
.text-green { color: var(--green); } .text-amber { color: var(--amber); } .text-red { color: var(--red); } .muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field > label, .label { font-weight: 600; font-size: 13px; }
.hint { color: var(--muted); font-size: 12.5px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], input:not([type]), select, textarea {
  width: 100%; height: 38px; padding: 0 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); font: inherit;
}
textarea { height: auto; padding: 10px 12px; resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
input[type=file] { font: inherit; color: var(--muted); }
.check { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; cursor: pointer; }
.check:hover { background: var(--surface-2); }
.check input { width: 16px; height: 16px; accent-color: var(--primary); }
.form-section { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; margin: 8px 0 12px; display: flex; align-items: center; gap: 8px; }
.form-section::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.row-end { display: flex; align-items: flex-end; gap: 10px; }
.row-end .field { flex: 1; margin-bottom: 0; }

/* ---------- misc ---------- */
.alert { display: flex; gap: 10px; align-items: flex-start; padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; background: var(--primary-soft); border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent); }
.alert.warn { background: var(--amber-soft); border-color: color-mix(in srgb, var(--amber) 30%, transparent); }
.alert svg.i { margin-top: 2px; color: var(--primary); }
.alert.warn svg.i { color: var(--amber); }
.empty { text-align: center; padding: 36px 20px; color: var(--muted); }
.empty svg.i { width: 30px; height: 30px; margin-bottom: 8px; opacity: .6; }
.empty h3 { color: var(--text); margin-bottom: 4px; }
.progress { height: 6px; border-radius: 99px; background: var(--surface-2); overflow: hidden; min-width: 80px; }
.progress > span { display: block; height: 100%; background: var(--primary); border-radius: 99px; }
.progress.green > span { background: var(--green); }
.email-preview { background: var(--surface-2); border-radius: 10px; padding: 14px 16px; }
.email-preview .subj { font-weight: 650; margin-bottom: 8px; }
.email-preview pre { white-space: pre-wrap; margin: 0; font: inherit; }
.ai-note { display: flex; gap: 8px; color: var(--blue); background: var(--blue-soft); padding: 8px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; }
.check-row { display: grid; grid-template-columns: 28px 170px 1fr; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--border); align-items: start; }
.check-row:last-child { border-bottom: 0; }
.check-icon { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 800; }
.check-icon.ok { background: var(--green-soft); color: var(--green); }
.check-icon.warn { background: var(--amber-soft); color: var(--amber); }
.check-icon.fail { background: var(--red-soft); color: var(--red); }
.check-detail code { word-break: break-all; white-space: normal; }
.score { font-weight: 800; font-size: 13px; padding: 3px 10px; border-radius: 99px; }
.score.ok { background: var(--green-soft); color: var(--green); }
.score.warn { background: var(--amber-soft); color: var(--amber); }
.score.fail { background: var(--red-soft); color: var(--red); }
details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
.log-row { display: grid; grid-template-columns: 130px 100px 1fr; gap: 12px; padding: 9px 18px; border-bottom: 1px solid var(--border); font-size: 13px; }
.log-row:last-child { border-bottom: 0; }
.steps { counter-reset: s; display: grid; gap: 10px; }
.step { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; }
.step .n { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); font-weight: 700; font-size: 12.5px; flex: none; }
.step.done .n { background: var(--green-soft); color: var(--green); }
.step .t { flex: 1; }

/* ---------- login ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; background:
  radial-gradient(1000px 500px at 10% -10%, color-mix(in srgb, var(--primary) 18%, transparent), transparent),
  radial-gradient(800px 400px at 110% 110%, color-mix(in srgb, var(--blue) 14%, transparent), transparent), var(--bg); }
.auth-card { width: 100%; max-width: 400px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 32px; box-shadow: 0 10px 40px rgba(16,24,40,.08); }
.auth-card .brand { color: var(--text); padding: 0 0 24px; font-size: 18px; }
.auth-card h1 { margin-bottom: 6px; }

/* ---------- mobile ---------- */
.topbar { display: none; }
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; position: fixed; inset: 0 auto 0 0; width: 250px; z-index: 20; }
  .sidebar.open { display: flex; }
  .topbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--sidebar); color: #fff; position: sticky; top: 0; z-index: 10; }
  .topbar .brand { padding: 0; }
  .topbar button { background: none; border: 0; color: #fff; cursor: pointer; padding: 6px; }
  .main { padding: 20px 16px 48px; }
  .cols-2, .cols-3 { grid-template-columns: 1fr; }
  .cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .check-row { grid-template-columns: 28px 1fr; }
  .check-row .check-detail { grid-column: 2; }
  .log-row { grid-template-columns: 1fr; gap: 2px; }
  .table th, .table td { padding: 10px 12px; }
}