:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --income: #16a34a;
    --expense: #dc2626;
    --bg: #f4f5fa;
    --card-bg: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --radius: 14px;
}

* { box-sizing: border-box; }

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

a { text-decoration: none; color: inherit; }

/* ---------- Auth Pages ---------- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    padding: 20px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.auth-card h1 {
    font-size: 24px;
    margin-bottom: 4px;
}

.auth-card p.subtitle {
    color: var(--muted);
    margin-bottom: 24px;
    font-size: 14px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 20px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
    text-decoration: none;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-block { width: 100%; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: #f3f4f6; }
.btn-danger { background: var(--expense); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 6px 12px; font-size: 13px; }

.auth-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
    color: var(--muted);
}

.auth-footer a { color: var(--primary); font-weight: 600; }

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

.sidebar {
    width: 240px;
    background: #1e1b4b;
    color: #e0e7ff;
    padding: 24px 16px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar .brand {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 30px;
    padding: 0 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 12px;
    border-radius: 8px;
    margin-bottom: 4px;
    font-size: 14px;
    color: #c7d2fe;
    transition: background 0.15s;
}

.sidebar nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.sidebar nav a.active { background: var(--primary); color: #fff; }

.main-content { flex: 1; padding: 28px 32px; max-width: 100%; overflow-x: hidden; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.topbar h1 { font-size: 22px; margin: 0; }

.user-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card-bg);
    padding: 6px 14px 6px 6px;
    border-radius: 30px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    font-size: 14px;
}

.user-chip .avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
}

/* ---------- Cards ---------- */
.cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.stat-card .label {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-card .value { font-size: 24px; font-weight: 700; }
.stat-card.income .value { color: var(--income); }
.stat-card.expense .value { color: var(--expense); }
.stat-card.balance .value { color: var(--primary); }

.panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    margin-bottom: 24px;
}

.panel h2 {
    font-size: 17px;
    margin: 0 0 16px 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .grid-2 { grid-template-columns: 1fr; }
    .app-layout { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: relative; }
}

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
    text-align: left;
    color: var(--muted);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 10px 12px;
    border-bottom: 2px solid var(--border);
}
tbody td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:hover { background: #fafafa; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.badge-income { background: #dcfce7; color: #15803d; }
.badge-expense { background: #fee2e2; color: #b91c1c; }

.amount-income { color: var(--income); font-weight: 600; }
.amount-expense { color: var(--expense); font-weight: 600; }

.table-actions { display: flex; gap: 8px; }
.table-actions a, .table-actions button { color: var(--muted); }
.table-actions a:hover { color: var(--primary); }

/* ---------- Alerts ---------- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: 14px;
}
.alert-success { background: #dcfce7; color: #15803d; }
.alert-danger { background: #fee2e2; color: #b91c1c; }

/* ---------- Forms in modal-like panel ---------- */
.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
    align-items: end;
}
.filter-bar .form-group { margin-bottom: 0; min-width: 150px; }

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--muted);
}
.empty-state i { font-size: 40px; margin-bottom: 10px; display: block; }

.progress-bar-wrap {
    background: #f0f0f5;
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin-top: 6px;
}
.progress-bar-fill { height: 100%; border-radius: 10px; background: var(--primary); }
.progress-bar-fill.over { background: var(--expense); }