:root {
    --bg: #26282e;
    --card: #2e313a;
    --card-soft: #343844;
    --border: #41454f;
    --text: #e8e6e1;
    --muted: #a09daa;
    --accent: #b7a6f5;
    --accent-strong: #c9bcfa;
    --accent-soft: #3a3550;
    --green: #8fd6b8;
    --green-soft: #2c3d36;
    --red: #ef9a9a;
    --red-soft: #442f32;
    --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
}

a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 220px;
    background: var(--card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 10px 16px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
}

.brand-logo {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.brand-center {
    justify-content: center;
    padding-bottom: 24px;
}

.menu { display: flex; flex-direction: column; gap: 2px; flex: 1; }

.menu-link {
    display: block;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--muted);
    font-weight: 500;
}
.menu-link:hover { background: var(--card-soft); color: var(--text); text-decoration: none; }
.menu-link.active { background: var(--accent-soft); color: var(--accent-strong); }

.sidebar-footer { border-top: 1px solid var(--border); padding-top: 12px; }

.content {
    margin-left: 220px;
    padding: 24px 28px;
    max-width: 1400px;
}

.h1 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }

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

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 16px;
}

.card h2 { font-size: 15px; margin-bottom: 12px; }

.auth-body { display: flex; align-items: center; justify-content: center; }

.auth-wrap { width: 100%; max-width: 460px; padding: 24px; }

.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 30px;
}

.form { display: flex; flex-direction: column; gap: 14px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 13px; color: var(--muted); font-weight: 500; }

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: var(--bg);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(183, 166, 245, 0.15);
}

.fieldset {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.fieldset legend {
    padding: 0 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
}

.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
}
.btn-primary { background: var(--accent); color: #221d33; }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); background: var(--card-soft); }

.alert {
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-size: 13px;
}
.alert-error { background: var(--red-soft); color: var(--red); }
.alert-ok { background: var(--green-soft); color: var(--green); }

table.grid {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
table.grid th, table.grid td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
table.grid th {
    background: var(--card-soft);
    font-size: 12px;
    color: var(--muted);
    font-weight: 600;
}
table.grid tr:last-child td { border-bottom: none; }
table.grid tr:hover td { background: rgba(183, 166, 245, 0.04); }
table.grid .num { text-align: right; font-variant-numeric: tabular-nums; }
table.grid .pos { color: var(--green); }
table.grid .neg { color: var(--red); }

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.metric {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
}
.metric .metric-name { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.metric .metric-value { font-size: 20px; font-weight: 700; }
.metric .metric-delta { font-size: 12px; margin-top: 4px; }
.metric .metric-delta.pos { color: var(--green); }
.metric .metric-delta.neg { color: var(--red); }

code {
    background: var(--card-soft);
    padding: 2px 6px;
    border-radius: 5px;
    font-size: 13px;
}

ol, ul { padding-left: 20px; }
li { margin-bottom: 6px; }

@media (max-width: 900px) {
    .sidebar { position: static; width: 100%; flex-direction: row; align-items: center; }
    .menu { flex-direction: row; }
    .content { margin-left: 0; padding: 16px; }
}