:root {
    --bg: #f4f7fb;
    --text: #1f2a3d;
    --muted: #6b778c;
    --card: #ffffff;
    --primary: #0f6ad8;
    --primary-dark: #0a4c9b;
    --danger: #dc3545;
    --warning: #d98e0f;
    --success: #1b9a5f;
    --border: #dde5f0;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    background: radial-gradient(circle at top left, #e9f1ff, #f7fbff 40%, #f4f7fb 80%);
    color: var(--text);
    font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
}

a { color: var(--primary); text-decoration: none; }
p { color: var(--muted); }

.app-shell { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.auth-shell { grid-template-columns: 1fr; place-items: center; padding: 24px; }

.sidebar {
    background: linear-gradient(160deg, #0e2340 0%, #15386a 100%);
    color: #fff;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand-badge {
    width: 42px; height: 42px; border-radius: 12px;
    display: grid; place-items: center;
    background: rgba(255,255,255,.15); font-weight: 700;
}
.menu { display: grid; gap: 10px; }
.menu a {
    color: #d9e8ff;
    padding: 10px 12px;
    border-radius: 10px;
}
.menu a:hover { background: rgba(255,255,255,.12); }
.user-card {
    margin-top: auto;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.18);
    padding: 12px;
    border-radius: 12px;
}

.main-content { padding: 24px; overflow-x: auto; }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 8px 18px rgba(23, 42, 75, .05);
    margin-bottom: 16px;
}

.title-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.actions-row { display: flex; gap: 8px; }
.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}
.metric-card {
    background: linear-gradient(165deg, #fff, #f0f6ff);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}
.metric-card strong { font-size: 28px; }

.split-grid { display: grid; grid-template-columns: repeat(2, minmax(260px, 1fr)); gap: 12px; }

.form-grid { display: grid; gap: 12px; }
.form-grid label { display: grid; gap: 6px; color: #33435f; font-weight: 600; }
input, select, textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 10px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
}
input:focus, select:focus, textarea:focus {
    outline: 2px solid rgba(15, 106, 216, .2);
    border-color: var(--primary);
}

.btn {
    border: 0;
    border-radius: 10px;
    padding: 9px 14px;
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-light { background: #eef4ff; color: #143965; }
.btn-danger { background: #ffe9ec; color: var(--danger); }
.btn-warning { background: #fff4e2; color: var(--warning); }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 8px; border-bottom: 1px solid var(--border); font-size: 14px; }

.alert {
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 12px;
    font-weight: 600;
}
.alert.success { background: #e9fff4; color: #0f7548; border: 1px solid #bde9cf; }
.alert.error { background: #fff1f3; color: #b31f2f; border: 1px solid #f4bfcb; }

.inline-form { display: inline-block; margin-right: 6px; }
.status { padding: 4px 9px; border-radius: 999px; font-size: 12px; }
.status.online { background: #e7f9f0; color: #15784b; }
.status.offline { background: #f7e9eb; color: #b81f30; }
.status.maintenance { background: #fff5e7; color: #ad7410; }

.weekdays { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.weekdays label { font-weight: 500; display: flex; gap: 6px; align-items: center; }
.check-inline { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: #33435f; }
.check-inline input { width: auto; }
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 8px;
    margin-top: 8px;
}
.check-option {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
}
.check-option input { width: auto; margin-top: 2px; }
.check-option span { display: grid; gap: 3px; font-size: 14px; }
.check-option small { color: var(--muted); font-size: 12px; }
.simple-list { margin: 0; padding-left: 16px; }
.timeline { display: grid; gap: 10px; }
.timeline-item {
    border: 1px solid var(--border);
    border-left: 4px solid #1965d6;
    border-radius: 10px;
    padding: 12px;
    background: #fff;
}
.timeline-item header { display: flex; justify-content: space-between; margin-bottom: 8px; }

.auth-card { max-width: 440px; width: 100%; }
.link { color: #355d99; font-weight: 600; }

@media (max-width: 1024px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .cards-grid { grid-template-columns: repeat(2, minmax(130px, 1fr)); }
}

@media (max-width: 640px) {
    .main-content { padding: 14px; }
    .split-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: 1fr; }
    .title-bar { flex-direction: column; align-items: flex-start; }
}