:root {
    --negro: #000000;
    --gris: #353535;
    --gris-claro: #D8D8D8;
    --blanco: #FFFFFF;
    --amarillo: #EDFF00;
    --rojo: #FF7E7B;
    --verde: #9CE3BD;
    --azul: #9EBAF0;
    --radio: 14px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--negro);
    color: var(--blanco);
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 84px;
}

.topbar {
    padding: 18px 20px 10px;
    position: sticky;
    top: 0;
    background: var(--negro);
    z-index: 10;
}
.brand { font-size: 15px; letter-spacing: 0.02em; color: var(--gris-claro); }
.accent { color: var(--amarillo); }

.content { padding: 8px 20px 20px; max-width: 480px; margin: 0 auto; }

h1 { font-weight: 300; font-size: 28px; margin: 8px 0 20px; }
h2 { font-weight: 400; font-size: 16px; color: var(--gris-claro); margin: 24px 0 10px; }

.card {
    background: #111;
    border: 1px solid #2a2a2a;
    border-radius: var(--radio);
    padding: 16px;
    margin-bottom: 12px;
}

label { display: block; font-size: 13px; color: var(--gris-claro); margin: 14px 0 6px; }

input, select, textarea {
    width: 100%;
    padding: 14px;
    background: #151515;
    border: 1px solid #333;
    border-radius: 10px;
    color: var(--blanco);
    font-size: 16px;
    font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--amarillo); }

.btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 16px;
    border-radius: 10px;
    border: none;
    background: var(--amarillo);
    color: var(--negro);
    font-size: 16px;
    font-weight: 600;
    margin-top: 18px;
    cursor: pointer;
}
.btn.secundario {
    background: transparent;
    border: 1px solid var(--gris);
    color: var(--blanco);
    font-weight: 400;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.quick-grid { display: grid; gap: 10px; margin-top: 6px; }
.quick-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 16px;
    background: #111;
    border: 1px solid #2a2a2a;
    border-radius: var(--radio);
    color: var(--blanco);
    text-decoration: none;
    font-size: 16px;
}
.quick-btn .ico {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--amarillo);
    color: var(--negro);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700;
    flex-shrink: 0;
}

.saldo-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid #222;
}
.saldo-row:last-child { border-bottom: none; }
.saldo-nombre { font-size: 15px; }
.saldo-tipo { font-size: 12px; color: var(--gris-claro); }
.saldo-monto { font-size: 17px; font-weight: 600; }
.saldo-monto.pasivo { color: var(--rojo); }
.saldo-monto.activo { color: var(--verde); }

.mov-item { padding: 12px 0; border-bottom: 1px solid #222; }
.mov-item:last-child { border-bottom: none; }
.mov-top { display: flex; justify-content: space-between; font-size: 15px; }
.mov-tipo { color: var(--gris-claro); font-size: 12px; margin-top: 2px; }
.mov-nota { color: var(--gris-claro); font-size: 13px; margin-top: 4px; }
.mov-monto.gasto { color: var(--rojo); }
.mov-monto.ingreso { color: var(--verde); }

.filtros { display: flex; gap: 8px; margin-bottom: 14px; }
.filtros select { padding: 10px; font-size: 13px; }

.error { background: #2a1414; color: var(--rojo); padding: 12px; border-radius: 10px; margin-bottom: 14px; font-size: 14px; }
.ok { background: #142a1c; color: var(--verde); padding: 12px; border-radius: 10px; margin-bottom: 14px; font-size: 14px; }

.tabbar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    display: flex;
    background: #0a0a0a;
    border-top: 1px solid #222;
    padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
    z-index: 10;
}
.tabbar a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--gris-claro);
    text-decoration: none;
    font-size: 11px;
    padding: 4px 0;
}
.tabbar a.on { color: var(--amarillo); }
.tabbar .ico { font-size: 18px; line-height: 1; }

.login-wrap { display: flex; align-items: center; min-height: 90vh; }