/* ============================================================
   Style utama KeuanganKu
   Desain simple & ringan - vanilla CSS, tanpa framework.
   ============================================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f1f5f9;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #0f172a;
    --muted: #64748b;
    --green: #16a34a;
    --red: #dc2626;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { width: min(1000px, 94vw); margin: 0 auto; }

.navbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--primary); text-decoration: none; }
.brand-icon { font-size: 1.3rem; }
.nav-menu { display: flex; gap: 18px; }
.nav-menu a { color: var(--text); text-decoration: none; padding: 4px 0; font-weight: 500; }
.nav-menu a:hover { color: var(--primary); }
.nav-user { display: flex; align-items: center; gap: 10px; }
.user-chip {
    background: #eff6ff; color: var(--primary); padding: 4px 12px;
    border-radius: 999px; font-size: .85rem; font-weight: 600;
}

.main { flex: 1; padding: 24px 0 40px; }

.footer { border-top: 1px solid var(--border); background: var(--surface); padding: 14px 0; text-align: center; }
.footer p { color: var(--muted); font-size: .8rem; }

/* --- Buttons --- */
.btn {
    display: inline-block; padding: 8px 16px; border-radius: 8px;
    border: 1px solid transparent; font-size: .9rem; font-weight: 600;
    cursor: pointer; text-decoration: none; transition: .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: #fff; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: #fef2f2; color: var(--red); border-color: #fecaca; }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: .8rem; }
.btn-block { display: block; width: 100%; margin-top: 10px; text-align: center; }

/* --- Cards --- */
.card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 20px; margin-bottom: 20px;
}
.card-title { font-size: 1.05rem; margin-bottom: 6px; }
.card-subtitle { color: var(--muted); margin-bottom: 18px; }
.card-head { display: flex; justify-content: space-between; align-items: center; }

.auth-card {
    max-width: 440px; margin: 24px auto; background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 28px; box-shadow: var(--shadow);
}

/* --- Dashboard stat cards --- */
.dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.dash-header h1 { font-size: 1.4rem; }
.header-actions { display: flex; gap: 8px; }
.muted { color: var(--muted); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
    border-top: 3px solid var(--border);
}
.card-income { border-top-color: var(--green); }
.card-expense { border-top-color: var(--red); }
.card-saldo { border-top-color: var(--primary); }
.card-count { border-top-color: #8b5cf6; }
.stat-label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; }
.stat-value { font-size: 1.5rem; font-weight: 700; margin-top: 4px; }

.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 20px; }
@media (max-width: 720px) { .chart-grid { grid-template-columns: 1fr; } }

/* --- Forms --- */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 5px; }
.form-control {
    width: 100%; padding: 9px 12px; border: 1px solid var(--border);
    border-radius: 8px; font-size: .95rem; background: #fff; color: var(--text);
}
.form-control:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: transparent; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.error-msg { display: block; color: var(--red); font-size: .8rem; margin-top: 4px; }
.hint { display: block; color: var(--muted); font-size: .78rem; margin-top: 4px; }
.auth-link { text-align: center; margin-top: 16px; color: var(--muted); font-size: .9rem; }
.auth-link a { color: var(--primary); }

/* --- Filter bar --- */
.filter-bar {
    display: grid; grid-template-columns: 1fr 1fr 1fr 1fr auto;
    gap: 10px; align-items: end; background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px; margin-bottom: 18px; box-shadow: var(--shadow);
}
.filter-bar .form-group { margin-bottom: 0; }
.filter-submit { display: flex; gap: 6px; align-items: end; }
@media (max-width: 820px) { .filter-bar { grid-template-columns: 1fr 1fr; } }

/* --- Table --- */
.table { width: 100%; border-collapse: collapse; }
.table th {
    text-align: left; font-size: .75rem; text-transform: uppercase;
    letter-spacing: .4px; color: var(--muted); padding: 10px 8px;
    border-bottom: 2px solid var(--border);
}
.table td { padding: 12px 8px; border-bottom: 1px solid var(--border); font-size: .92rem; }
.table tr:hover td { background: #f8fafc; }
.ta-right { text-align: right; }
.ta-center { text-align: center; }
.inline { display: inline; }

/* --- Badges --- */
.badge {
    display: inline-block; padding: 2px 10px; border-radius: 999px;
    font-size: .75rem; font-weight: 600;
}
.badge-income { background: #dcfce7; color: var(--green); }
.badge-expense { background: #fee2e2; color: var(--red); }

.text-income { color: var(--green); font-weight: 600; }
.text-expense { color: var(--red); font-weight: 600; }

/* --- Flash --- */
.flash-stack { margin-bottom: 18px; }
.alert {
    padding: 12px 16px; border-radius: 8px; margin-bottom: 8px;
    border: 1px solid transparent; font-size: .9rem;
}
.alert-success { background: #dcfce7; color: #166534; border-color: #bbf7d0; }
.alert-danger  { background: #fee2e2; color: #991b1b; border-color: #fecaca; }
.alert-warning { background: #fef9c3; color: #854d0e; border-color: #fef08a; }
.alert-info    { background: #dbeafe; color: #1e40af; border-color: #bfdbfe; }

/* --- Empty state & misc --- */
.empty-state { text-align: center; color: var(--muted); padding: 26px 10px; }
.empty-state a { color: var(--primary); }
.import-example { margin-top: 20px; border-top: 1px dashed var(--border); padding-top: 16px; }
.import-example h4 { font-size: .9rem; margin-bottom: 8px; }
.import-example pre {
    background: #0f172a; color: #e2e8f0; padding: 12px; border-radius: 8px;
    font-size: .8rem; overflow-x: auto; margin-bottom: 8px;
}
.import-example code { background: #e2e8f0; padding: 1px 6px; border-radius: 4px; font-size: .8rem; }

/* --- Telegram --- */
.tg-steps { margin: 8px 0 16px 18px; }
.tg-steps li { margin-bottom: 6px; font-size: .9rem; }
.link-code {
    background: #eff6ff; border: 1px dashed #93c5fd; border-radius: 10px;
    padding: 14px; text-align: center; margin: 12px 0;
}
.link-code-label { font-size: .85rem; color: var(--muted); }
.qr-box {
    background: #fff; border-radius: 12px; padding: 12px;
    margin: 10px auto; text-align: center; width: fit-content;
    box-shadow: 0 1px 4px rgba(0,0,0,.12);
}
.qr-box .qr-code { display: inline-block; }
.link-code-value {
    font-size: 2rem; font-weight: 800; letter-spacing: 6px; color: var(--primary);
    font-family: "Courier New", monospace; margin: 6px 0;
}