:root {
    --primary: #0f172a;
    --secondary: #1e293b;
    --card: #1e293b;
    --accent: #f59e0b;
    --text: #e2e8f0;
    --text2: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --propina: #a78bfa;
    --vale: #60a5fa;
    --glass: rgba(255,255,255,0.05);
    --radius: 16px;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--primary);
    color: var(--text);
    min-height: 100vh;
    padding-bottom: 85px;
}
.header {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 20px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.header .logo {
    font-size: 2em;
    margin-bottom: 2px;
}
.header h1 {
    font-size: 1.3em;
    font-weight: 800;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.header .fecha {
    font-size: 0.8em;
    color: var(--text2);
    margin-top: 4px;
}
.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 15px;
}
.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.03);
    box-shadow: var(--shadow);
    transition: transform 0.2s;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    border-radius: 4px 0 0 4px;
}
.card.banco::before { background: var(--success); }
.card.caja::before { background: var(--warning); }
.card.pendiente::before { background: var(--danger); }
.card.total::before { background: var(--info); }
.card.vales::before { background: var(--vale); }
.card .label {
    font-size: 0.7em;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text2);
    margin-bottom: 8px;
}
.card .value {
    font-size: 1.5em;
    font-weight: 800;
}
.card .trend {
    font-size: 0.7em;
    margin-top: 4px;
}
.card .trend.up { color: var(--success); }
.card .trend.down { color: var(--danger); }
.alert {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 14px 18px;
    margin: 0 15px 15px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9em;
}
.section-title {
    padding: 15px 15px 8px;
    font-size: 1em;
    font-weight: 700;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.recibos-list { padding: 0 15px; }
.recibo-item {
    background: var(--card);
    padding: 14px 16px;
    margin-bottom: 8px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.03);
}
.recibo-item .info { flex: 1; }
.recibo-item .concepto { font-weight: 600; }
.recibo-item .fecha { font-size: 0.75em; color: var(--text2); }
.recibo-item .importe { color: var(--danger); font-weight: 700; }
.nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-around;
    padding: 8px 4px;
    border-top: 1px solid rgba(255,255,255,0.05);
    z-index: 100;
}
.nav button {
    background: none; border: none;
    color: var(--text2);
    font-size: 0.6em; padding: 6px 4px;
    cursor: pointer; border-radius: 12px;
    transition: all 0.3s;
    display: flex; flex-direction: column;
    align-items: center; gap: 3px;
    min-width: 50px;
}
.nav button.active {
    color: var(--accent);
    background: rgba(245, 158, 11, 0.1);
}
.nav button .icon { font-size: 1.3em; }
.vista { padding: 15px; display: none; }
.vista.active { display: block; }
.form-group { margin-bottom: 14px; }
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.8em;
    font-weight: 600;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-group input, .form-group select {
    width: 100%; padding: 13px 15px; border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.08);
    background: var(--card);
    color: var(--text);
    font-size: 1em;
    transition: border 0.3s;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--accent);
}
.btn {
    width: 100%; padding: 15px; border: none;
    border-radius: 12px; font-size: 0.95em;
    font-weight: 700; cursor: pointer; margin-top: 8px;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: linear-gradient(135deg, #f59e0b, #d97706); color: #000; }
.btn-success { background: linear-gradient(135deg, #10b981, #059669); color: #fff; }
.btn-warning { background: linear-gradient(135deg, #f59e0b, #d97706); color: #000; }
.btn-vale { background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; }
.btn-danger { background: linear-gradient(135deg, #ef4444, #dc2626); color: #fff; }
.contador-section {
    background: var(--card);
    border-radius: var(--radius);
    padding: 15px;
    margin-bottom: 12px;
    border: 1px solid rgba(255,255,255,0.03);
}
.contador-section h3 {
    font-size: 0.9em;
    margin-bottom: 12px;
    color: var(--warning);
    font-weight: 700;
}
.contador-section h3.propinas-title { color: var(--propina); }
.billete-row, .moneda-row {
    display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.billete-row label, .moneda-row label {
    width: 60px; font-weight: 700; font-size: 0.85em;
    text-transform: none; letter-spacing: 0;
}
.billete-row input, .moneda-row input {
    width: 60px; padding: 10px; text-align: center;
    border-radius: 10px; border: 1px solid rgba(255,255,255,0.1);
    background: var(--primary); color: #fff; font-size: 1em;
}
.billete-row .total, .moneda-row .total {
    color: var(--success); font-weight: 700; min-width: 50px; text-align: right;
}
.total-caja {
    font-size: 1.3em; font-weight: 800; text-align: right;
    padding: 12px 0; border-top: 1px solid rgba(255,255,255,0.08); margin-top: 5px;
}
.total-caja span { color: var(--warning); }
.descuadre {
    text-align: center; font-size: 1em; padding: 12px;
    border-radius: 12px; margin-top: 12px; font-weight: 600;
}
.descuadre.ok { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.descuadre.mal { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.resumen-dia {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 15px;
}
.resumen-item {
    background: var(--primary); padding: 12px; border-radius: 12px; text-align: center;
}
.resumen-item .rl { font-size: 0.7em; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.resumen-item .rv { font-size: 1.1em; font-weight: 700; }
.vale-item {
    background: var(--card); padding: 14px 16px; margin-bottom: 8px;
    border-radius: 12px; display: flex; justify-content: space-between;
    align-items: center; border-left: 4px solid var(--vale);
}
.vale-item .importe { color: var(--vale); font-weight: 700; font-size: 1.1em; }
.info-box {
    background: var(--card); border-radius: var(--radius);
    padding: 20px; margin-bottom: 15px; text-align: center;
    border: 1px solid rgba(255,255,255,0.03);
}
.info-box .big { font-size: 2.2em; font-weight: 800; color: var(--vale); }
.info-box .sub { font-size: 0.8em; color: var(--text2); margin-top: 5px; }
.categoria-item {
    background: var(--card); border-radius: 12px;
    padding: 14px 16px; margin-bottom: 8px; cursor: pointer;
    border: 1px solid rgba(255,255,255,0.03);
    transition: background 0.2s;
}
.categoria-item:active { background: var(--primary); }
.cat-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.cat-icon { font-size: 1.2em; }
.cat-nombre { flex: 1; font-weight: 600; font-size: 0.9em; }
.cat-total { font-weight: 700; font-size: 1em; }
.cat-sub { font-size: 0.7em; color: var(--text2); margin-top: 4px; text-align: right; }
.barra-fondo { height: 5px; background: var(--primary); border-radius: 3px; overflow: hidden; }
.barra-lleno { height: 100%; border-radius: 3px; transition: width 0.5s ease; }
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 0.65em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.badge-success { background: rgba(16,185,129,0.2); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.2); color: var(--danger); }
.mini-chart {
    display: flex; align-items: flex-end; gap: 4px;
    height: 50px; padding: 5px 0;
}
.mini-chart .bar {
    flex: 1; border-radius: 3px 3px 0 0;
    background: var(--accent);
    opacity: 0.7;
    min-height: 4px;
}