/* =========================
   Variables y Base
========================= */
:root {
    --bg-dark: #020617;
    --bg-card: #0f172a;
    --accent: #2dd4bf;
    --accent-hover: #14b8a6;
    --text-main: #e5e7eb;
    --text-dim: #9ca3af;
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #0f766e, #0f172a);
    color: var(--text-main);
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Manejo de Vistas */
.view { display: none; min-height: 100vh; }
.view.active { display: block; }

/* =========================
   Estilos de Login (App Feel)
========================= */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 20px;
}

.login-card {
    background: rgba(2, 6, 23, 0.9);
    padding: 40px;
    border-radius: 24px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.login-logo { width: 80px; margin-bottom: 20px; }

input {
    width: 100%;
    padding: 14px;
    margin: 15px 0;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: white;
}

/* =========================
   Layout Dashboard (Responsive)
========================= */
.app-layout {
    display: grid;
    grid-template-columns: 1fr; /* Móvil por defecto */
    min-height: 100vh;
}

@media (min-width: 768px) {
    .app-layout {
        grid-template-columns: 260px 1fr; /* Escritorio */
    }
}

.sidebar {
    background: var(--bg-dark);
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    border-right: 1px solid rgba(255,255,255,0.05);
}

.user-badge {
    color: var(--accent);
    font-weight: bold;
    font-size: 0.9rem;
    background: rgba(45, 212, 191, 0.1);
    padding: 5px 10px;
    border-radius: 8px;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

/* =========================
   Componentes
========================= */
.card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

button {
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

#loginBtn, .primary-action {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: var(--bg-dark);
    font-weight: bold;
    padding: 16px;
    border-radius: 12px;
    width: 100%;
}

.nav-item {
    background: transparent;
    color: var(--text-dim);
    text-align: left;
    padding: 12px;
    border-radius: 10px;
}

.nav-item.active, .nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--accent);
}

.secondary {
    background: transparent;
    border: 1px solid #ef4444;
    color: #ef4444;
    padding: 10px;
    border-radius: 10px;
}

.main-content { padding: 40px; }
.dev-banner {
    margin-top: 40px;
    padding: 15px;
    background: rgba(255,255,255,0.03);
    border-radius: 10px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.card strong {
    display: block;
    font-size: 1.8rem;
    margin-top: 5px;
    letter-spacing: -1px;
}

/* Color especial para el monto si es mayor a 0 */
.amount-positive {
    color: #2dd4bf;
    text-shadow: 0 0 20px rgba(45, 212, 191, 0.3);
}


.detalle-container {
    margin-top: 20px;
    background: rgba(2, 6, 23, 0.5);
    padding: 20px;
    border-radius: 16px;
    overflow-x: auto; /* Scroll para móviles */
}

.detalle-tabla {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 0.9rem;
}

.detalle-tabla th {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: var(--accent);
}

.detalle-tabla td {
    padding: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.text-green { color: #2dd4bf; font-weight: bold; }
.text-red { color: #fb7185; font-weight: bold; }

.tag {
    background: rgba(255,255,255,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
}

/* En escritorio la tabla es normal, en móvil se puede deslizar */
@media (max-width: 600px) {
    .detalle-tabla { font-size: 0.8rem; }
}