:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --ink: #1a2230;
    --muted: #667085;
    --line: #e4e8ee;
    --line-strong: #d0d7e0;
    --accent: #0f766e;
    --accent-hover: #0d655e;
    --accent-soft: #e6f4f2;
    --accent-ink: #ffffff;
    --danger: #b42318;
    --danger-hover: #932015;
    --danger-soft: #fee4e2;
    --ok-ink: #067647;
    --ok-soft: #d1fadf;
    --warn-soft: #fef0c7;
    --warn-ink: #93370d;
    --oblast-soft: #fdeef0;
    --oblast-ink: #a03033;
    --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
    --radius: 14px;
    --radius-sm: 10px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #10141a;
        --card: #171d26;
        --ink: #e7ecf2;
        --muted: #94a3b8;
        --line: #27303c;
        --line-strong: #38424f;
        --accent: #2dd4bf;
        --accent-hover: #5eead4;
        --accent-soft: #123f3a;
        --accent-ink: #0b1f1c;
        --danger: #f87171;
        --danger-hover: #fca5a5;
        --danger-soft: #3b1512;
        --ok-ink: #4ade80;
        --ok-soft: #0c2f22;
        --warn-soft: #3b2c07;
        --warn-ink: #fde047;
        --oblast-soft: #3b1519;
        --oblast-ink: #fda4af;
        --shadow: none;
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--ink);
    font: 15.5px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
}

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

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 6px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
}

.topbar__inner {
    max-width: 1020px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.topbar__brand {
    font-weight: 700;
    font-size: 17px;
    color: var(--ink);
    letter-spacing: -.01em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-right: auto;
}

.topbar__brand::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    flex: none;
}

.topbar__brand:hover { text-decoration: none; }

.topbar__links { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }

.nav__link {
    display: inline-block;
    color: var(--muted);
    font-size: 14px;
    font-weight: 500;
    padding: 7px 12px;
    border-radius: 999px;
    background: transparent;
    border: 0;
    cursor: pointer;
    font-family: inherit;
    transition: background .15s, color .15s;
}

.nav__link:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.nav__link--active { background: var(--accent); color: var(--accent-ink); }
.nav__link--active:hover { background: var(--accent-hover); color: var(--accent-ink); }
.nav__logout { color: var(--danger); }
.nav__logout:hover { background: var(--danger-soft); color: var(--danger); }

.main {
    max-width: 1020px;
    margin: 0 auto;
    padding: 18px 16px calc(32px + env(safe-area-inset-bottom));
}

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

.card h1 { margin: 0 0 14px; font-size: 20px; font-weight: 700; letter-spacing: -.02em; }
.card h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; letter-spacing: -.01em; }

.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.row > div { min-width: 0; }

.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }

.stat {
    text-align: center;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 14px 8px;
}

.stat__num { font-size: 24px; font-weight: 700; color: var(--accent); letter-spacing: -.02em; }
.stat__label { font-size: 12.5px; color: var(--muted); margin-top: 2px; }

label { display: block; font-size: 13px; font-weight: 500; color: var(--muted); margin-bottom: 5px; }

input[type="text"], input[type="password"], input[type="number"], input[type="search"], select, textarea {
    width: 100%;
    padding: 10px 12px;
    font-size: 16px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: var(--card);
    color: var(--ink);
    font-family: inherit;
    transition: border-color .15s, box-shadow .15s;
    -webkit-appearance: none;
    appearance: none;
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23667085' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 34px;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

textarea { min-height: 110px; resize: vertical; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: var(--accent-ink);
    cursor: pointer;
    font-family: inherit;
    transition: background .15s, transform .05s;
    text-decoration: none;
    min-height: 42px;
}

.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn--secondary {
    background: var(--card);
    color: var(--ink);
    border-color: var(--line-strong);
}
.btn--secondary:hover { background: var(--bg); }

.btn--danger { background: var(--danger); color: #fff; }
.btn--danger:hover { background: var(--danger-hover); }

.btn--sm { padding: 6px 12px; font-size: 13.5px; min-height: 34px; }

.list { list-style: none; margin: 0; padding: 0; }

.client-row {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    padding: 12px 8px;
    border-bottom: 1px solid var(--line);
    align-items: center;
    border-radius: 8px;
    transition: background .12s;
}

.client-row:hover { background: var(--bg); }
.client-row:last-child { border-bottom: 0; }

.client-row__name { font-weight: 600; font-size: 15px; }
.client-row__name a { color: var(--ink); }
.client-row__name a:hover { color: var(--accent); text-decoration: none; }

.client-row__meta { color: var(--muted); font-size: 13px; }
.client-row__right { margin-left: auto; white-space: nowrap; color: var(--muted); font-size: 13px; }

.badge {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 600;
    line-height: 1;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--muted);
    vertical-align: 1px;
}

.badge--samara { background: var(--accent-soft); border-color: transparent; color: var(--accent); }
.badge--oblast { background: var(--oblast-soft); border-color: transparent; color: var(--oblast-ink); }
.badge--ok { background: var(--ok-soft); border-color: transparent; color: var(--ok-ink); }
.badge--warn { background: var(--warn-soft); border-color: transparent; color: var(--warn-ink); }
.badge--err { background: var(--danger-soft); border-color: transparent; color: var(--danger); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; }
tbody tr:hover { background: var(--bg); }
tbody tr:last-child td { border-bottom: 0; }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -4px; padding: 0 4px; }

.pagination { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }

.pagination a, .pagination span {
    padding: 7px 13px;
    border-radius: 999px;
    background: var(--card);
    border: 1px solid var(--line);
    font-size: 14px;
    color: var(--ink);
}

.pagination a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.pagination span.current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.pagination .disabled { color: var(--muted); opacity: .55; }

.alert {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    font-size: 14.5px;
    border: 1px solid transparent;
}

.alert::before { font-weight: 700; }
.alert--ok { background: var(--ok-soft); color: var(--ok-ink); }
.alert--ok::before { content: "✓"; }
.alert--err { background: var(--danger-soft); color: var(--danger); }
.alert--err::before { content: "!"; }

.login-wrap { max-width: 400px; margin: 9vh auto 0; }
.login-wrap .card { padding: 26px; }

.muted { color: var(--muted); font-size: 13.5px; }
.mt { margin-top: 14px; }
.mb { margin-bottom: 14px; }

.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

@media (max-width: 640px) {
    .main { padding: 14px 12px calc(28px + env(safe-area-inset-bottom)); }
    .card { padding: 14px; border-radius: 12px; }
    .card h1 { font-size: 18px; }
    .row > div { flex: 1 1 100% !important; }
    .row .btn { width: 100%; }
    .btn-row { flex-direction: column; align-items: stretch; }
    .btn-row .btn { width: 100%; }
    .stat__num { font-size: 20px; }
    .client-row__right { margin-left: 0; width: 100%; }
}