:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --text: #172033;
    --muted: #64748b;
    --primary: #164e8f;
    --primary-dark: #0f3a6b;
    --primary-soft: #e8f1fb;
    --border: #dbe4ef;
    --danger: #b42318;
    --success: #0f766e;
    --warning: #b45309;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}
a { color: var(--primary); }
.site-header, .site-footer {
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--border);
}
.site-header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px); }
.site-footer { border-top: 1px solid var(--border); border-bottom: 0; color: var(--muted); margin-top: 2rem; }
.nav, .footer-inner, .user-strip-inner {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: .85rem 1.25rem;
}
.footer-inner { flex-wrap: wrap; font-size: .9rem; }
.brand { display: inline-flex; gap: .55rem; align-items: center; font-weight: 800; color: var(--text); text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--primary); color: #fff; font-size: .82rem; }
.nav-links { display: flex; gap: .35rem; flex-wrap: wrap; align-items: center; justify-content: flex-end; }
.nav-link { color: var(--text); text-decoration: none; padding: .55rem .7rem; border-radius: 999px; font-weight: 650; }
.nav-link:hover, .nav-link.is-active { background: var(--primary-soft); color: var(--primary-dark); }
.nav-toggle { display: none; padding: .55rem .75rem; }
.user-strip { border-top: 1px solid var(--border); background: #f8fbff; color: var(--muted); font-size: .88rem; }
.user-strip-inner { justify-content: flex-start; flex-wrap: wrap; padding-top: .5rem; padding-bottom: .5rem; }
.container { width: min(1180px, 100%); margin: 0 auto; padding: 1.25rem; }
.hero, .auth-panel, .dashboard-heading, .card, .module-panel, .stat-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.25rem;
    box-shadow: 0 10px 25px rgba(15, 23, 42, .06);
}
.page-heading-actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.hero h1, .dashboard-heading h1 { font-size: clamp(2rem, 8vw, 4rem); margin: .2rem 0; line-height: 1; }
.eyebrow { color: var(--primary); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; }
.muted { color: var(--muted); }
.actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1rem; }
.button, button {
    border: 0;
    border-radius: 12px;
    background: var(--primary);
    color: white;
    padding: .8rem 1rem;
    font-weight: 750;
    text-decoration: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.button:hover, button:hover { background: var(--primary-dark); }
.button-secondary { background: #e8eef7; color: var(--primary); }
.button-small { padding: .45rem .7rem; border-radius: 9px; font-size: .88rem; }
.card-grid, .stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1rem; }
.stat-grid { grid-template-columns: repeat(4, 1fr); }
.stat-card strong { display: block; font-size: 2rem; line-height: 1; margin-bottom: .4rem; }
.module-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; margin-top: 1rem; }
.module-list { margin: 0; padding-left: 1.1rem; }
.module-list li { margin: .45rem 0; }
.form-card { display: grid; gap: .65rem; max-width: 420px; }
.form-wide { display: grid; gap: 1rem; margin-top: 1rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.required { color: var(--danger); }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: .75rem;
    font: inherit;
    background: #fff;
}
label { display: grid; gap: .35rem; font-weight: 700; }
label input, label textarea, label select { font-weight: 400; }
.alert { padding: .75rem; border-radius: 10px; margin: 1rem 0; }
.alert-error { background: #fee4e2; color: var(--danger); }
.alert-success { background: #ccfbf1; color: var(--success); }
.badge { display: inline-flex; align-items: center; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); padding: .25rem .55rem; font-weight: 750; font-size: .8rem; }
.badge-warning { background: #fff7ed; color: var(--warning); }
.badge-success { background: #ccfbf1; color: var(--success); }
.table-wrap { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; min-width: 860px; }
.data-table th, .data-table td { text-align: left; padding: .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table th { color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.data-table tr:hover td { background: #f8fbff; }
.empty-state { color: var(--muted); text-align: center; padding: 2rem; }
code { background: #eef2f7; padding: .12rem .25rem; border-radius: 5px; }
@media (max-width: 900px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .module-grid, .card-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .nav { align-items: stretch; flex-wrap: wrap; }
    .nav-toggle { display: inline-flex; margin-left: auto; }
    .nav-links { display: none; width: 100%; align-items: stretch; justify-content: flex-start; flex-direction: column; }
    .nav-links.is-open { display: flex; }
    .nav-link { border-radius: 10px; }
    .stat-grid, .form-grid { grid-template-columns: 1fr; }
    .page-heading-actions { align-items: stretch; flex-direction: column; }
    .container { padding: .85rem; }
    .hero, .auth-panel, .dashboard-heading, .card, .module-panel, .stat-card { border-radius: 14px; }
}