:root {
    --ink: #13253a;
    --muted: #63758a;
    --paper: #f5f7fa;
    --panel: #ffffff;
    --line: #dce3ea;
    --blue: #1769e0;
    --blue-soft: #eaf2ff;
    --green: #12805c;
    --green-soft: #e7f6f0;
    --amber: #b56800;
    --amber-soft: #fff4df;
    --red: #b73535;
    --red-soft: #fdeaea;
    --navy: #0b223b;
    --shadow: 0 16px 40px rgba(28, 46, 68, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", sans-serif;
    line-height: 1.55;
}

button, input, select, textarea { font: inherit; }

.topbar {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0 36px;
    color: #fff;
    background: var(--navy);
    border-bottom: 3px solid #2e83ff;
}

.brand { display: flex; align-items: center; gap: 14px; color: inherit; text-decoration: none; }
.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    color: var(--navy);
    background: #fff;
    border-radius: 7px;
    font: 800 12px/1 "IBM Plex Mono", monospace;
}
.brand strong { display: block; font-size: 16px; letter-spacing: .04em; }
.brand small { color: #a9bbce; font-size: 11px; letter-spacing: .12em; }

.topbar a { color: #dbe9f8; text-decoration: none; font-size: 14px; }
.topbar a:hover { color: #fff; }

.page-shell { width: min(1420px, calc(100% - 48px)); margin: 34px auto 64px; }

.page-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 28px;
    margin-bottom: 26px;
}

.eyebrow {
    margin: 0 0 7px;
    color: var(--blue);
    font: 700 12px/1.2 "IBM Plex Mono", monospace;
    letter-spacing: .12em;
    text-transform: uppercase;
}

h1 { margin: 0; font-size: clamp(28px, 4vw, 46px); line-height: 1.12; letter-spacing: -.035em; }
.page-heading p { max-width: 720px; margin: 12px 0 0; color: var(--muted); }

.button-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
    min-height: 40px;
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.btn:hover { border-color: #aab7c5; transform: translateY(-1px); }
.btn:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid rgba(23,105,224,.22); outline-offset: 2px; }
.btn-primary { color: #fff; border-color: var(--blue); background: var(--blue); }
.btn-warning { color: var(--amber); border-color: #e9c47d; background: var(--amber-soft); }
.btn-danger { color: var(--red); border-color: #e5a9a9; background: var(--red-soft); }
.btn-small { min-height: 32px; padding: 5px 10px; font-size: 13px; }

.signal-rail {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: 24px;
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
}
.signal-cell { position: relative; padding: 18px 20px 16px; border-right: 1px solid var(--line); }
.signal-cell:last-child { border-right: 0; }
.signal-cell::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 3px; background: var(--line); }
.signal-cell.is-live::before { background: var(--green); }
.signal-label { color: var(--muted); font-size: 12px; }
.signal-value { display: block; margin-top: 3px; font: 700 23px/1.2 "IBM Plex Mono", monospace; }

.layout { display: grid; grid-template-columns: minmax(320px, .74fr) minmax(0, 1.55fr); gap: 22px; align-items: start; }
.stack { display: grid; gap: 22px; }

.panel { border: 1px solid var(--line); background: var(--panel); box-shadow: var(--shadow); }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.panel-head h2 { margin: 0; font-size: 17px; letter-spacing: -.01em; }
.panel-body { padding: 20px; }

.form-grid { display: grid; gap: 15px; }
.form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
input, select, textarea {
    width: 100%;
    min-height: 42px;
    padding: 9px 11px;
    color: var(--ink);
    border: 1px solid #cbd5df;
    border-radius: 6px;
    background: #fff;
}
select {
    -webkit-appearance: none;
    appearance: none;
    padding-right: 38px;
    background-image:
        linear-gradient(45deg, transparent 50%, #607086 50%),
        linear-gradient(135deg, #607086 50%, transparent 50%);
    background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}
textarea { min-height: 94px; resize: vertical; }
.muted { color: var(--muted); }
.account-path { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

.auth-shell {
    width: min(1180px, calc(100% - 48px));
    min-height: calc(100vh - 68px);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, .78fr);
    gap: 70px;
    align-items: center;
}
.auth-context h1 { max-width: 720px; margin: 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.08; letter-spacing: -.045em; }
.auth-context > p:not(.eyebrow) { max-width: 660px; color: var(--muted); }
.auth-card { padding: 34px; border: 1px solid var(--line); background: var(--panel); box-shadow: var(--shadow); }
.auth-card h2 { margin: 0; font-size: 25px; }
.flow-line { display: flex; align-items: center; gap: 12px; margin-top: 38px; color: var(--ink); font: 700 12px/1.2 "IBM Plex Mono", monospace; }
.flow-line i { flex: 1; height: 1px; background: var(--line); }

.notice { padding: 12px 14px; border-left: 3px solid var(--blue); background: var(--blue-soft); font-size: 14px; }
.notice.error { color: var(--red); border-color: var(--red); background: var(--red-soft); }
.notice.success { color: var(--green); border-color: var(--green); background: var(--green-soft); }
.is-hidden { display: none !important; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { padding: 11px 12px; color: var(--muted); background: #f8fafc; text-align: left; font-size: 12px; font-weight: 600; white-space: nowrap; }
td { padding: 14px 12px; border-top: 1px solid var(--line); vertical-align: top; }
.mono { font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace; font-size: 12px; }
.secret { display: inline-flex; align-items: center; gap: 8px; }

.status { display: inline-flex; align-items: center; gap: 6px; padding: 3px 8px; border-radius: 99px; font-size: 12px; font-weight: 700; }
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-active, .status-online { color: var(--green); background: var(--green-soft); }
.status-suspended, .status-offline { color: var(--amber); background: var(--amber-soft); }
.status-revoked, .status-expired, .status-blocked, .status-critical { color: var(--red); background: var(--red-soft); }
.status-info { color: var(--blue); background: var(--blue-soft); }

.event-list { display: grid; }
.event-row { display: grid; grid-template-columns: 132px 1fr auto; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.event-row:last-child { border-bottom: 0; }
.event-time { color: var(--muted); font: 12px/1.5 "IBM Plex Mono", monospace; }
.event-title { font-weight: 650; }
.event-detail { margin-top: 3px; color: var(--muted); font-size: 13px; }
.device-stack { display: grid; gap: 10px; min-width: 220px; }
.device-entry { display: grid; grid-template-columns: auto 1fr; gap: 3px 8px; padding-bottom: 9px; border-bottom: 1px solid var(--line); }
.device-entry:last-child { padding-bottom: 0; border-bottom: 0; }
.device-entry .mono { grid-column: 1 / -1; overflow-wrap: anywhere; }

.empty { padding: 38px 20px; color: var(--muted); text-align: center; }
.license-card { padding: 22px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.license-card + .license-card { margin-top: 16px; }
.license-card-head { display: flex; justify-content: space-between; gap: 18px; }
.license-card h2 { margin: 0 0 5px; font-size: 20px; }
.license-code { margin: 20px 0; padding: 13px 15px; border: 1px dashed #9fb1c5; background: #f8fafc; font: 700 15px/1.5 "IBM Plex Mono", monospace; word-break: break-all; }
.meta-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.meta-item { padding-top: 12px; border-top: 1px solid var(--line); }
.meta-item span { display: block; color: var(--muted); font-size: 12px; }
.meta-item strong { display: block; margin-top: 4px; font-size: 14px; }

@media (max-width: 920px) {
    .topbar { padding: 0 20px; }
    .page-shell { width: min(100% - 28px, 760px); margin-top: 24px; }
    .page-heading, .layout { grid-template-columns: 1fr; }
    .signal-rail { grid-template-columns: 1fr 1fr; }
    .signal-cell:nth-child(2) { border-right: 0; }
    .signal-cell:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .meta-grid { grid-template-columns: 1fr 1fr; }
    .auth-shell { grid-template-columns: 1fr; gap: 34px; padding: 48px 0; }
}

@media (max-width: 560px) {
    .brand small { display: none; }
    .signal-rail, .form-grid.cols-2, .meta-grid { grid-template-columns: 1fr; }
    .signal-cell { border-right: 0; border-bottom: 1px solid var(--line); }
    .signal-cell:last-child { border-bottom: 0; }
    .event-row { grid-template-columns: 1fr; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}