:root {
  color-scheme: dark;
  --bg: #080b10;
  --surface: #10151d;
  --surface-raised: #151c26;
  --surface-soft: #0d1219;
  --line: #27313e;
  --line-bright: #354354;
  --text: #edf2f8;
  --muted: #8a96a7;
  --faint: #566274;
  --blue: #79a8ff;
  --blue-deep: #264a80;
  --green: #6fe0a6;
  --red: #ff7883;
  --yellow: #eac66e;
  font-family: "Segoe UI", "Microsoft YaHei UI", sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); background: var(--bg); background-image: linear-gradient(#ffffff03 1px, transparent 1px), linear-gradient(90deg, #ffffff03 1px, transparent 1px), radial-gradient(ellipse at 10% -10%, #193259 0, transparent 36%); background-size: 44px 44px, 44px 44px, auto; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled { opacity: .55; cursor: wait; }
main { width: min(1240px, calc(100% - 64px)); margin: 0 auto; padding: 42px 0 80px; }
h1, h2, p { margin: 0; }
h1 { font-size: 28px; line-height: 1; letter-spacing: -.045em; font-weight: 720; }
h2 { font-size: 18px; line-height: 1.1; letter-spacing: -.02em; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 72px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.brand-lockup, .header-meta, .header-meta, .status, .intro-note, .list-heading, .section-heading { display: flex; align-items: center; }
.brand-lockup { gap: 13px; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid #5479b4; border-radius: 11px; background: linear-gradient(145deg, #274b80, #15253e); color: #c9ddff; font: 800 20px/1 Georgia, serif; box-shadow: 0 9px 24px #12274866; }
.eyebrow, .section-index { color: var(--blue); font: 700 10px/1 monospace; letter-spacing: .16em; }
.eyebrow { margin-bottom: 7px; }
.header-meta { gap: 19px; }
.server-label { color: var(--faint); font: 700 9px/1 monospace; letter-spacing: .08em; }
.server-label b { color: var(--green); margin: 0 4px; }
.status { gap: 7px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 10px; }
.status i, .pulse { display: block; width: 6px; height: 6px; border-radius: 50%; background: var(--faint); }
.status.online { border-color: #2b6049; color: var(--green); }
.status.online i, .pulse { background: var(--green); box-shadow: 0 0 10px #6fe0a688; }
.panel { border: 1px solid var(--line); background: #10151ddd; box-shadow: 0 22px 60px #00000035; }
.login-panel { display: grid; grid-template-columns: 1fr minmax(340px, 1fr); align-items: center; gap: 45px; max-width: 800px; margin-top: 58px; padding: 34px; border-radius: 13px; }
.login-copy { display: grid; gap: 10px; }
.login-copy h2 { margin-top: 5px; }
.login-copy p, .dashboard-intro p, .section-heading p { color: var(--muted); font-size: 11px; line-height: 1.7; }
.login-panel form { display: grid; gap: 10px; }
.input-wrap { display: grid; gap: 6px; }
.input-wrap span, .choice-field > span { color: var(--faint); font: 700 9px/1 monospace; letter-spacing: .08em; }
input, select { min-width: 0; width: 100%; height: 42px; border: 1px solid var(--line); border-radius: 7px; outline: 0; background: var(--surface-soft); color: var(--text); padding: 0 12px; }
input::placeholder { color: #566274; }
input:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px #527fc52b; }
button { border: 1px solid var(--blue); border-radius: 7px; background: var(--blue); color: #07101f; padding: 10px 15px; font-size: 11px; font-weight: 750; transition: .18s ease; }
button:hover { filter: brightness(1.12); transform: translateY(-1px); }
.login-panel button { display: flex; justify-content: space-between; align-items: center; }
.login-panel button b { font-size: 17px; font-weight: 400; }
button.secondary { border-color: var(--line); background: transparent; color: var(--muted); }
button.danger { border-color: #713a48; background: #321b24; color: #ff9ba4; }
button.restore { border-color: #2c694e; background: #173628; color: var(--green); }
.error, .notice { font-size: 11px; }
.error { color: #ff9aa4; }
.notice { margin: 15px 0 0; padding: 12px 15px; border: 1px solid #315581; border-left: 3px solid var(--blue); border-radius: 7px; background: #122139; color: #cfe0fa; }
.dashboard-intro { display: flex; align-items: end; justify-content: space-between; margin: 44px 0 17px; }
.dashboard-intro h2, .section-heading h2, .list-heading h2 { margin-top: 7px; }
.intro-note { gap: 8px; color: var(--green); font-size: 10px; }
.toolbar { display: flex; align-items: stretch; justify-content: space-between; gap: 22px; padding: 0; overflow: hidden; border-radius: 10px; }
.metrics { display: flex; }
.metric { display: grid; min-width: 140px; gap: 3px; padding: 17px 24px; border-right: 1px solid var(--line); }
.metric strong { font-size: 25px; line-height: 1; font-weight: 650; letter-spacing: -.04em; }
.metric span { color: var(--muted); font-size: 10px; }
.metric em { color: var(--faint); font: 700 8px/1 monospace; letter-spacing: .1em; font-style: normal; }
.metric.primary strong { color: var(--blue); }
.actions { display: flex; align-items: center; gap: 8px; padding: 12px 15px; }
.search-box { display: flex; align-items: center; width: 210px; height: 36px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); color: var(--faint); padding-left: 10px; }
.search-box span { font-size: 19px; line-height: 1; }
.search-box input { height: 34px; border: 0; box-shadow: none; background: transparent; padding-left: 6px; font-size: 11px; }
.actions select { width: 115px; height: 36px; font-size: 10px; }
.actions button { height: 36px; padding: 0 12px; font-size: 10px; }
.icon-button { display: flex; align-items: center; gap: 5px; }
.icon-button:first-letter { font-size: 18px; }
.issue-section { margin-top: 42px; }
.section-heading { justify-content: space-between; align-items: end; margin-bottom: 14px; }
.section-heading p { text-align: right; }
.create-form { display: grid; grid-template-columns: 150px 170px minmax(220px, 1fr) 140px; align-items: end; gap: 12px; padding: 18px; border-radius: 10px; }
.choice-field { display: grid; gap: 7px; }
.choice-field select, .choice-field input { height: 40px; font-size: 11px; }
.issue-button { height: 40px; display: flex; align-items: center; justify-content: center; gap: 5px; }
.issue-button span { font-size: 17px; font-weight: 400; }
.created-card { display: flex; align-items: center; gap: 14px; margin-top: 12px; padding: 14px 17px; border: 1px solid #356c50; border-radius: 8px; background: #10251b; }
.created-card > span { color: var(--green); font-size: 10px; font-weight: 700; }
.created-card code { flex: 1; color: #b3f2ca; font: 700 16px/1 monospace; letter-spacing: .06em; }
.created-card button { border-color: #3b7357; background: transparent; color: var(--green); padding: 7px 11px; font-size: 10px; }
.list-heading { justify-content: space-between; align-items: end; margin: 46px 0 14px; }
.list-heading > span { color: var(--faint); font: 700 10px/1 monospace; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
.card { overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); transition: border-color .18s, transform .18s; }
.card:hover { border-color: var(--line-bright); transform: translateY(-2px); }
.card-head { display: grid; grid-template-columns: minmax(130px, 1fr) auto; gap: 12px; padding: 17px 18px 15px; }
.license-id { color: var(--text); font: 700 13px/1.4 monospace; letter-spacing: .05em; }
.customer { overflow: hidden; margin-top: 5px; color: var(--muted); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.badges { display: flex; flex-wrap: wrap; justify-content: flex-end; align-content: start; gap: 5px; }
.badge { padding: 4px 7px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); font-size: 9px; white-space: nowrap; }
.badge.pro { border-color: #52698e; color: #a5c1f6; background: #172337; }
.badge.good { border-color: #28694e; color: var(--green); background: #12251b; }
.badge.bad { border-color: #713a48; color: var(--red); background: #2b171e; }
.card-actions { grid-column: 1 / -1; display: flex; gap: 7px; border-top: 1px solid var(--line); padding-top: 12px; }
.card-actions button, .device button { padding: 6px 10px; font-size: 10px; }
.card-meta { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.card-meta div { min-width: 0; padding: 11px 13px; border-right: 1px solid var(--line); }
.card-meta div:last-child { border-right: 0; }
.card-meta span { display: block; overflow: hidden; margin-bottom: 5px; color: var(--faint); font: 700 8px/1 monospace; text-overflow: ellipsis; white-space: nowrap; }
.card-meta strong { display: block; overflow: hidden; color: #c7d2e0; font-size: 10px; font-weight: 550; text-overflow: ellipsis; white-space: nowrap; }
.devices { border-top: 1px solid var(--line); padding: 10px 16px 13px; }
.devices > p { padding: 0 0 7px; color: var(--faint); font: 700 8px/1 monospace; letter-spacing: .08em; }
.device { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 5px 12px; padding: 8px 0 0; border-top: 1px solid #202a36; color: var(--muted); font-size: 10px; }
.device code { color: var(--text); font: 700 10px/1 monospace; }
.device span { color: var(--faint); font-size: 9px; }
.device button { grid-row: 1 / span 2; grid-column: 2; }
.empty { margin-top: 16px; padding: 55px; border-radius: 10px; text-align: center; color: var(--muted); font-size: 11px; }
@media (max-width: 980px) { main { width: min(100% - 36px, 760px); } .cards { grid-template-columns: 1fr; } .create-form { grid-template-columns: 1fr 1fr; } .customer-field { grid-column: 1 / -1; } .issue-button { grid-column: 1 / -1; } }
@media (max-width: 680px) { main { width: min(100% - 24px, 520px); padding-top: 24px; } .site-header { align-items: start; padding-bottom: 22px; } .server-label { display: none; } .header-meta { align-items: start; } .login-panel { grid-template-columns: 1fr; gap: 26px; margin-top: 28px; padding: 23px; } .dashboard-intro { align-items: start; flex-direction: column; gap: 12px; margin-top: 28px; } .toolbar { display: block; } .metrics { display: grid; grid-template-columns: repeat(3, 1fr); } .metric { min-width: 0; padding: 14px 10px; border-right: 1px solid var(--line); } .metric strong { font-size: 21px; } .metric em { font-size: 7px; } .actions { display: grid; grid-template-columns: 1fr 1fr; padding: 11px; } .search-box { width: auto; grid-column: 1 / -1; } .actions select { width: 100%; } .actions button { width: 100%; } .section-heading { align-items: start; flex-direction: column; gap: 10px; } .section-heading p { text-align: left; } .create-form { grid-template-columns: 1fr; } .customer-field, .issue-button { grid-column: auto; } .created-card { align-items: stretch; flex-direction: column; } .created-card code { font-size: 14px; } .card-head { display: flex; flex-direction: column; } .badges { justify-content: flex-start; } .card-meta { grid-template-columns: 1fr 1fr; } .card-meta div:nth-child(2) { border-right: 0; } .card-meta div:nth-child(-n+2) { border-bottom: 1px solid var(--line); } }