:root {
  --teal-blue: #0e7490;
  --teal-bright: #0891b2;
  --teal-soft: #ecfeff;
  --red: #c81d25;
  --red-soft: #fff1f2;
  --black: #0b0f14;
  --ink: #111111;
  --muted: #5b6570;
  --line: #e6eaee;
  --paper: #f4f7f8;
  --white: #ffffff;
  --danger: #b42318;
  --side: 248px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
a { color: var(--teal-blue); }
h1 { margin: 0 0 8px; font-size: 2.35rem; letter-spacing: -0.04em; line-height: 1.1; }
h2 { margin: 0 0 6px; font-size: 1.05rem; }
p { line-height: 1.55; }
.muted { color: var(--muted); }
.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--teal-blue);
  color: var(--white);
  font-weight: 800;
  letter-spacing: 0.04em;
  flex: none;
}
.brand { color: var(--white); text-decoration: none; font-weight: 800; display: flex; gap: 12px; align-items: center; }
.brand small { display: block; margin-top: 2px; font-weight: 500; color: #d1d5db; font-size: 0.78rem; }
.top { background: var(--black); border-bottom: 4px solid var(--red); }
.top-row { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; gap: 16px; }
.main { padding: 28px 0 64px; }
.btn, .btn-ghost, .top button, .side button, .btn.light {
  border-radius: 10px;
  padding: 11px 16px;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  border: 0;
  font-weight: 700;
}
.btn, .top button, .side button { background: var(--teal-blue); color: var(--white); }
.btn:hover, .top button:hover, .side button:hover { background: var(--teal-bright); }
.btn.light, .btn-ghost { background: var(--white); color: var(--black); border: 1px solid #d5dde3; }
.btn.light:hover, .btn-ghost:hover { border-color: var(--teal-blue); color: var(--teal-blue); }
.card, .directory, .stat, .work {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(11, 15, 20, 0.04);
}
.card { padding: 22px; }
.narrow { max-width: 460px; margin: 12px auto; }
.narrow.wide { max-width: 680px; }
.btn-red { background: var(--red); color: var(--white); }
.btn-red:hover { background: #a3161d; }
.badge.unknown { background: var(--red-soft); color: var(--red); }
.badge.verified { background: var(--teal-soft); color: var(--teal-blue); }
.badge.blocked { background: var(--black); color: var(--white); }
.checks { display: flex; gap: 16px; flex-wrap: wrap; margin: 8px 0 16px; }
.checks label { display: inline-flex; align-items: center; margin: 0; }
.device-list { display: flex; flex-direction: column; gap: 14px; }
.device-head, .device-actions { display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.device-actions { align-items: end; margin-top: 12px; flex-wrap: wrap; }
.block-form { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.device-card h2 { margin-top: 8px; }
.eyebrow { margin: 0 0 8px; color: var(--teal-blue); font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.75rem; }
.eyebrow.on-dark { color: #67e8f9; }
.landing { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; align-items: center; }
.landing-copy h1 { font-size: 3.1rem; max-width: 12ch; }
.landing-actions { margin: 22px 0 18px; }
.dept-row { display: flex; gap: 8px; flex-wrap: wrap; }
.dept-row span, .badge, .steps span {
  border-radius: 999px;
  padding: 6px 12px;
  background: var(--teal-soft);
  color: var(--teal-blue);
  font-size: 0.85rem;
  font-weight: 700;
}
.directory { padding: 8px; }
.directory-head, .member { display: flex; align-items: center; gap: 12px; }
.directory-head { justify-content: space-between; padding: 12px 12px 8px; }
.directory-head span, .member em { color: var(--muted); font-style: normal; font-size: 0.85rem; }
.member { padding: 12px; border-radius: 12px; }
.member + .member { border-top: 1px solid var(--line); border-radius: 0; }
.member div { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.member strong { font-size: 0.98rem; }
.member span { color: var(--muted); font-size: 0.86rem; }
.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--teal-soft);
  color: var(--teal-blue);
  font-weight: 800;
  flex: none;
}
.avatar.dark { background: var(--black); color: var(--white); }
.how { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
.how article { background: var(--white); border-radius: 16px; padding: 18px; border: 1px solid var(--line); }
.how span { color: var(--red); font-weight: 800; }
.member em { color: var(--red); font-weight: 800; font-style: normal; }
.in-app { display: grid; grid-template-columns: var(--side) 1fr; min-height: 100vh; }
.side {
  background: var(--black);
  color: var(--white);
  border-right: 4px solid var(--red);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-height: 100vh;
}
.side-nav { display: flex; flex-direction: column; gap: 6px; }
.side-nav a { color: var(--white); text-decoration: none; padding: 10px 12px; border-radius: 10px; font-weight: 700; background: var(--teal-blue); }
.side-nav a.quiet { background: #1f2937; }
.side-nav a:hover { background: #17202a; color: #67e8f9; }
.side-user { margin-top: auto; display: flex; gap: 10px; align-items: center; }
.side-user div { display: flex; flex-direction: column; }
.side-user span { color: #d1d5db; font-size: 0.82rem; }
.side form { margin: 0; }
.workspace { min-width: 0; }
.workspace-inner { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 56px; }
.banner {
  background: linear-gradient(135deg, var(--black) 0%, #12343d 100%);
  color: var(--white);
  border-radius: 20px;
  border-bottom: 4px solid var(--red);
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
}
.banner p { color: #d7e3e8; margin: 0; max-width: 46ch; }
.banner h1 { color: var(--white); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 16px 0 8px; }
.stat { padding: 18px 20px; }
.stat strong { display: block; font-size: 1.7rem; letter-spacing: -0.03em; }
.stat span { color: var(--muted); }
.split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 16px; align-items: start; }
.section-title { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin: 22px 0 10px; }
.directory.flat { padding: 6px; }
.work-list { display: flex; flex-direction: column; gap: 10px; }
.work { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 16px 18px; }
.work form { margin: 0; }
.badge.medium { background: #f3f4f6; color: var(--black); }
.badge.high { background: var(--black); color: var(--white); }
.badge.critical, .badge.excel { background: var(--red); color: var(--white); }
.work.critical, .work.high { box-shadow: inset 4px 0 0 var(--red); }
.change-note { background: var(--red-soft); border-radius: 12px; padding: 12px 14px; }
.sheet { margin: 16px 0; }
.badge.low { background: var(--white); color: var(--black); border: 1px solid var(--black); }
label { display: block; font-weight: 650; margin: 14px 0 6px; }
input[type="checkbox"] { width: auto; margin-right: 8px; }
input, textarea, select {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
  background: var(--white);
  color: var(--black);
}
.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; }
.flash.error { background: #fee4e2; color: var(--danger); }
.flash.status { background: var(--teal-soft); color: var(--teal-blue); }
.table-wrap { overflow-x: auto; background: var(--white); border: 1px solid var(--line); border-radius: 16px; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--black); color: var(--white); font-weight: 650; }
tr:last-child td { border-bottom: 0; }
.phone {
  width: min(320px, 100%);
  margin: 12px auto;
  border: 10px solid var(--black);
  border-radius: 28px;
  padding: 22px 16px;
  background: var(--white);
  text-align: center;
}
.code { font-size: 2rem; letter-spacing: 0.28em; font-weight: 800; color: var(--teal-blue); }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
pre { white-space: pre-wrap; background: var(--black); color: var(--white); border-radius: 12px; padding: 14px; }
.note { font-size: 0.92rem; }
@media (max-width: 900px) {
  .landing, .how, .split, .stats { grid-template-columns: 1fr; }
  .landing-copy h1 { font-size: 2.3rem; max-width: none; }
  .in-app { grid-template-columns: 1fr; }
  .side { position: static; height: auto; }
  .banner, .work, .top-row { flex-direction: column; align-items: flex-start; }
}