:root {
  --navy: #0b1f3b;
  --navy-2: #12325c;
  --cyan: #00aeef;
  --cyan-dk: #0092c9;
  --orange: #f5a623;
  --ink: #16273f;
  --muted: #62748c;
  --line: #e2e8f1;
  --field: #f7f9fc;
  --ok: #12895b;
  --bad: #c0342b;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: #ffffff;
  color: var(--ink);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan-dk); }

/* ---------- public page ---------- */

.banner {
  background: #061225;
  line-height: 0;
}

.banner img {
  display: block;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  height: auto;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 20px 40px;
}

.card {
  max-width: 680px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 40px -28px rgba(11, 31, 59, 0.45);
  overflow: hidden;
}

.card::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 45%, var(--orange) 100%);
}

.card-body { padding: 30px 34px 34px; }

.eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--cyan-dk);
}

h1 {
  font-size: 24px;
  line-height: 1.25;
  margin: 8px 0 6px;
  color: var(--navy);
  letter-spacing: -0.2px;
}

.sub {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.when {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin: 0 0 24px;
  font-weight: 700;
  font-size: 14px;
  color: var(--navy);
  background: #eef8fd;
  border: 1px solid #cdeefa;
  border-radius: 999px;
  padding: 7px 14px;
}

.when .dot { color: var(--orange); }

label {
  display: block;
  margin-bottom: 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  color: #4a5c76;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  background: var(--field);
  border: 1px solid #d8e1ee;
  border-radius: 10px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  background: #fff;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 174, 239, 0.18);
}

input.bad, textarea.bad { border-color: var(--bad); background: #fff6f5; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

.hp { position: absolute; left: -9999px; height: 0; width: 0; opacity: 0; }

button {
  font: inherit;
  cursor: pointer;
  border: none;
  border-radius: 10px;
}

.btn-main {
  width: 100%;
  margin-top: 8px;
  padding: 15px 20px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: #fff;
  background: var(--cyan);
  box-shadow: 0 12px 22px -14px rgba(0, 174, 239, 0.9);
  transition: background .15s, transform .05s;
}

.btn-main:hover { background: var(--cyan-dk); }
.btn-main:active { transform: translateY(1px); }
.btn-main[disabled] { background: #9fc9dd; box-shadow: none; cursor: default; }

.err {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fdf0ef;
  border: 1px solid #f3cfcb;
  color: var(--bad);
  font-size: 13.5px;
  font-weight: 600;
}

.privacy {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.done { padding: 34px 10px 20px; text-align: center; }

.done .check {
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 27px;
  color: #fff;
  background: var(--ok);
}

.done p {
  max-width: 460px;
  margin: 0 auto;
  font-size: 16px;
  color: var(--navy);
}

.done .hint { margin-top: 14px; font-size: 13px; color: var(--muted); }

.foot {
  padding: 26px 20px 40px;
  text-align: center;
  font-size: 12px;
  color: #8d9bb0;
}

/* ---------- admin ---------- */

.topbar {
  background: var(--navy);
  color: #fff;
  padding: 16px 0;
}

.topbar .inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand { font-weight: 800; letter-spacing: 0.4px; font-size: 15px; }
.brand span { color: var(--cyan); }
.topbar .spacer { flex: 1; }

.tabs {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}

.tabs .inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 4px;
}

.tab {
  padding: 14px 16px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--muted);
  border-bottom: 3px solid transparent;
  background: none;
  border-radius: 0;
}

.tab.active { color: var(--navy); border-bottom-color: var(--cyan); }

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }

.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}

.stat .n { font-size: 26px; font-weight: 800; color: var(--navy); line-height: 1.1; }
.stat .l { font-size: 11.5px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.stat.warn .n { color: var(--bad); }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px 22px;
  margin-bottom: 20px;
}

.panel h2 { font-size: 14px; letter-spacing: 0.4px; text-transform: uppercase; color: var(--navy); margin: 0 0 14px; }
.panel h2 .hint { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--muted); font-size: 12.5px; margin-left: 8px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.btn {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: var(--navy-2);
  transition: filter .15s;
}

.btn:hover { filter: brightness(1.15); }
.btn.cyan { background: var(--cyan); }
.btn.orange { background: var(--orange); color: #3a2600; }
.btn.ghost { background: #eef2f8; color: var(--navy); }
.btn.danger { background: #fbeae8; color: var(--bad); }
.btn.sm { padding: 6px 10px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }

th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }

th {
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--muted);
  background: #f8fafd;
  white-space: nowrap;
}

tbody tr:hover { background: #fbfdff; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.badge.sent { background: #e6f6ee; color: var(--ok); }
.badge.failed { background: #fdeceb; color: var(--bad); }
.badge.none { background: #eef2f8; color: var(--muted); }

.empty { padding: 26px; text-align: center; color: var(--muted); font-size: 13.5px; }

.settings fieldset { border: none; margin: 0 0 22px; padding: 0; }
.settings legend {
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--cyan-dk);
  padding: 0 0 8px;
}
.settings label { text-transform: none; letter-spacing: 0; font-size: 12.5px; color: #46586f; font-weight: 700; }
.settings textarea { min-height: 190px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; line-height: 1.6; }
.settings .two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--navy);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 16px 30px -18px rgba(0, 0, 0, .6);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s, transform .18s;
  pointer-events: none;
  max-width: 380px;
}

.toast.show { opacity: 1; transform: translateY(0); }
.toast.bad { background: var(--bad); }

.login-wrap { max-width: 380px; margin: 8vh auto 0; }
.login-wrap .card-body { padding: 28px; }

.hidden { display: none !important; }

@media (max-width: 720px) {
  .card-body { padding: 24px 20px 26px; }
  .grid, .settings .two { grid-template-columns: 1fr; }
  h1 { font-size: 21px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .table-scroll { overflow-x: auto; }
  th, td { white-space: nowrap; }
}