:root {
    --bg: #0f1221;
    --panel: #191d33;
    --line: #2a2f4a;
    --text: #e7e9f3;
    --muted: #9aa0be;
    --accent: #5b8cff;
    --error: #ff6b6b;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.muted { color: var(--muted); }
.error { color: var(--error); }

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
}

.topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
}
.topbar .spacer { flex: 1; }

.nav { display: flex; gap: 6px; margin-left: 18px; }
.nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 14px;
}
.nav a.active, .nav a:hover { color: var(--text); background: var(--bg); }

.lang { display: flex; gap: 4px; margin-right: 12px; }
.lang a { color: var(--muted); text-decoration: none; padding: 4px 8px; border-radius: 6px; font-size: 13px; }
.lang a.active, .lang a:hover { color: var(--text); background: var(--bg); }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.ellipsis { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
button.link.danger { color: var(--error); }

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 16px;
    margin-top: 12px;
}
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.form-grid input, .form-grid select {
    padding: 9px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
.form-grid .form-actions { grid-column: 1 / -1; }

.install-card { margin-top: 12px; }
.ssh-form { display: flex; gap: 8px; margin: 10px 0; flex-wrap: wrap; }
.ssh-form input {
    padding: 9px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
.install-status { margin: 10px 0; font-size: 14px; }
.locked-note {
    margin: 10px 0;
    padding: 10px 12px;
    background: #2a2313;
    border: 1px solid #5a4a1e;
    border-radius: 8px;
    color: #f0c674;
    font-size: 14px;
}
.banner-error {
    margin: 12px 0;
    padding: 12px 14px;
    background: #3a1e1e;
    border: 1px solid #6a2a2a;
    border-radius: 8px;
    color: #ffb4b4;
}
.banner-ok {
    margin: 12px 0;
    padding: 12px 14px;
    background: #16301c;
    border: 1px solid #2a5a34;
    border-radius: 8px;
    color: #a8e6b0;
}
.install-log {
    background: #0b0e1a;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    font-size: 12px;
    max-height: 260px;
    overflow: auto;
    white-space: pre-wrap;
    color: var(--muted);
}
.install-cmd {
    display: block;
    margin-top: 8px;
    padding: 10px 12px;
    background: #0b0e1a;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-all;
    color: #9fe0a0;
}
span.ok, .ok { color: #4bd47b; }
span.off, .off { color: var(--muted); }
.danger { color: var(--error); }

.user-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.user-head span { margin-left: 8px; font-size: 13px; }
.row-actions { display: flex; gap: 12px; }
.row-actions form { display: inline; }
.assign { display: flex; gap: 8px; margin-top: 12px; }
.assign select {
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
}

.container { max-width: 1000px; margin: 24px auto; padding: 0 20px; }

button {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 16px;
    font-size: 15px;
    cursor: pointer;
}
button.link {
    background: none;
    color: var(--muted);
    padding: 0;
}

.stats { display: flex; flex-wrap: wrap; gap: 16px; margin: 16px 0 28px; }
.stat { flex: 1 1 140px; text-align: center; }
.stat-num { font-size: 28px; font-weight: 700; }

/* Столбчатый график трафика */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 160px; padding-top: 8px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; }
.bar-col .bar {
    width: 100%;
    max-width: 34px;
    margin-top: auto;
    min-height: 2px;
    background: linear-gradient(180deg, var(--accent), #3a63c9);
    border-radius: 4px 4px 0 0;
}
.bar-label { font-size: 10px; color: var(--muted); margin-top: 6px; }

/* Полоски загрузки CPU/RAM */
.meter {
    display: inline-block;
    width: 90px;
    height: 8px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    vertical-align: middle;
    margin-right: 6px;
}
.meter-fill { height: 100%; background: #4bd47b; }
.meter-fill.ram { background: #f0a53a; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }

/* Login */
.login-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}
.login-card { width: 320px; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0; }
.login-card label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.login-card input {
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}