:root {
    --bg: #0f172a;
    --bg-soft: #1e293b;
    --bg-card: #1e293b;
    --border: #334155;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #38bdf8;
    --primary-d: #0ea5e9;
    --success: #34d399;
    --danger: #f87171;
    --warning: #fbbf24;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

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

/* --- Layout ------------------------------------------------------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
    width: 230px;
    background: var(--bg-soft);
    border-right: 1px solid var(--border);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: .25rem;
    position: sticky;
    top: 0;
    height: 100vh;
}
.sidebar .brand { font-weight: 700; font-size: 1.15rem; padding: .5rem; color: var(--text); }
.sidebar nav a {
    display: block;
    padding: .55rem .75rem;
    border-radius: var(--radius);
    color: var(--muted);
}
.sidebar nav a:hover { background: var(--bg-card); color: var(--text); text-decoration: none; }
.sidebar nav a.active { background: var(--primary); color: #06283d; font-weight: 600; }
.sidebar .spacer { flex: 1; }

.main { flex: 1; min-width: 0; }
.topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: .75rem 1.5rem; border-bottom: 1px solid var(--border);
    background: var(--bg-soft); gap: 1rem;
}
.content { padding: 1.5rem; max-width: 1100px; }

/* --- Typography --------------------------------------------------- */
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.2rem; margin: 1.5rem 0 .75rem; }
.muted { color: var(--muted); }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }

/* --- Cards / grid ------------------------------------------------- */
.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow);
}
.grid { display: grid; gap: 1rem; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) {
    .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
    .sidebar { display: none; }
}

.stat { display: flex; flex-direction: column; gap: .25rem; }
.stat .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.stat .value { font-size: 1.6rem; font-weight: 700; }
.value.pos { color: var(--success); }
.value.neg { color: var(--danger); }

/* --- Tables ------------------------------------------------------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
tbody tr:hover { background: rgba(255,255,255,.02); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- Forms -------------------------------------------------------- */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .3rem; }
input, select, textarea {
    width: 100%; padding: .55rem .65rem; background: var(--bg);
    border: 1px solid var(--border); border-radius: 8px; color: var(--text);
    font-size: .95rem; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-d); border-color: var(--primary-d); }
.field { margin-bottom: 1rem; }
.form-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.form-row .field { flex: 1; min-width: 180px; }
.check { display: flex; align-items: center; gap: .5rem; }
.check input { width: auto; }

/* --- Buttons ------------------------------------------------------ */
.btn {
    display: inline-flex; align-items: center; gap: .4rem; cursor: pointer;
    padding: .5rem .9rem; border-radius: 8px; border: 1px solid transparent;
    background: var(--primary); color: #06283d; font-weight: 600; font-size: .9rem;
    text-decoration: none;
}
.btn:hover { background: var(--primary-d); text-decoration: none; }
.btn.secondary { background: transparent; border-color: var(--border); color: var(--text); }
.btn.secondary:hover { background: var(--bg-card); }
.btn.danger { background: var(--danger); color: #3b0a0a; }
.btn.sm { padding: .3rem .6rem; font-size: .8rem; }
.btn-row { display: flex; gap: .5rem; align-items: center; }

/* --- Badges ------------------------------------------------------- */
.badge {
    display: inline-block; padding: .15rem .5rem; border-radius: 999px;
    font-size: .75rem; font-weight: 600; background: var(--bg); border: 1px solid var(--border);
}
.badge.income { color: var(--success); border-color: var(--success); }
.badge.expense { color: var(--danger); border-color: var(--danger); }
.badge.transfer { color: var(--primary); border-color: var(--primary); }
.badge.role { color: var(--warning); border-color: var(--warning); }
.badge.archived { color: var(--muted); }

/* --- Flash -------------------------------------------------------- */
.flashes { margin-bottom: 1rem; display: flex; flex-direction: column; gap: .5rem; }
.flash { padding: .7rem 1rem; border-radius: 8px; border: 1px solid var(--border); }
.flash.success { background: rgba(52,211,153,.12); border-color: var(--success); color: #bbf7d0; }
.flash.error { background: rgba(248,113,113,.12); border-color: var(--danger); color: #fecaca; }

/* --- Progress bars (budget) -------------------------------------- */
.bar { height: 8px; background: var(--bg); border-radius: 999px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--primary); }
.bar > span.over { background: var(--danger); }

/* --- Auth screens ------------------------------------------------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.auth-card { width: 100%; max-width: 400px; }
.auth-card h1 { text-align: center; }
.auth-card .sub { text-align: center; color: var(--muted); margin-top: -.5rem; margin-bottom: 1.5rem; }

.household-switch select { min-width: 160px; }
.inline { display: inline; }
.right { text-align: right; }
.mt { margin-top: 1rem; }
canvas { max-width: 100%; }