/* ========== CALCULADORA DE KPIS ========== */
.calculadora-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

.page-hero {
    display: flex;
    align-items: center;
    background-color: var(--fondo);
    padding: 2rem 2rem 1rem;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 500;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
    text-align: left;
}

.page-hero p {
    color: var(--borde);
    max-width: 100%;
    text-align: left;
    margin-top: 0.5rem;
}

.page-dos{
    height: 20%;
    margin-left:auto;
    background-image: url(../images/calculadora.png);
}

.page-dos h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--texto-claro);
}

.line-divider-left {
    width: 60px;
    height: 2px;
    background-color: var(--acento);
    margin: 0.75rem 0;
}

/* KPI Card */
.kpi-card {
    background-color: #646E7840;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(203, 210, 208, 0.12);
    border-radius: var(--radius-md);
}

.kpi-card:hover {
    border-color: var(--acento);
}

.kpi-header {
    background-color: #646E7840;
    padding: 0.875rem 1.5rem;
    border-bottom: 1px solid rgba(203, 210, 208, 0.1);
    cursor: pointer;
    user-select: none;
}

.kpi-header h2 {
    color: var(--texto-claro);
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
    letter-spacing: 0.3px;
}

.kpi-header h2 i {
    margin-right: 0.5rem;
    color: var(--acento);
}

.kpi-header .toggle-icon {
    float: right;
    transition: transform 0.3s ease;
    color: #646E78;
}

.kpi-card.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.kpi-card.collapsed .kpi-body,
.kpi-card.collapsed .resultados-panel {
    display: none;
}

.kpi-body {
    padding: 1.5rem;
}

.kpi-formula {
    background-color: var(--cards);
    padding: 0.625rem 1rem;
    margin-bottom: 1.25rem;
    border-left: 3px solid var(--acento);
    font-size: 0.8rem;
    color: #FFFAFF;
}

.kpi-formula i {
    margin-right: 0.5rem;
    color: var(--texto-claro);
}

/* Periodo selector */
.periodo-selector {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.625rem 1rem;
}

.periodo-selector label {
    color: var(--texto-claro);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.periodo-selector select {
    background-color: var(--cards);
    color: var(--texto-claro);
    border: 1px solid var(--borde);
    border-radius: var(--radius-md);
    padding: 0.4rem 0.875rem;
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    min-width: 100px;
}

.periodo-selector select:focus {
    outline: none;
    border-color: var(--acento);
}

.periodo-selector select option {
    background-color: var(--cards);
    color: var(--texto-claro);
    border-radius: var(--radius-md);
}

/* Grid layout */
.kpi-grid-layout {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    align-items: flex-start;
}

.kpi-inputs {
    flex: 2;
    min-width: 300px;
}

.variables-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.875rem;
    margin-bottom: 0.75rem;
}

/* Inputs */
.input-group {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    color: var(--texto-claro);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 0.4rem;
}

.input-group input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    background-color: var(--cards);
    color: var(--texto-claro);
    border: 1px solid var(--borde);
    font-family: inherit;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    border-radius: var(--radius-sm);
    box-sizing: border-box;
}

.input-group input::placeholder {
    color: rgba(241, 245, 249, 0.35);
}

.input-group input:focus {
    outline: none;
    border-color: var(--acento);
    background-color: var(--cards);
}

.input-group .input-hint {
    font-size: 0.6rem;
    color: var(--texto-claro);
    margin-top: 0.2rem;
}

/* Botones */
.button-container {
    display: flex;
    gap: 0.75rem;
    margin: 1.25rem 0 0.5rem;
    flex-wrap: wrap;
}

.btn-calc {
    background-color: var(--cards-texto);
    color: var(--fondo);
    padding: 0.75rem 1.75rem;
    font-weight: 600;
    font-size: 0.8rem;
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    border: none;
    cursor: pointer;
    flex: 1;
    min-width: 160px;
}

.btn-calc i { font-size: 0.9rem; }

.btn-calc:hover {
    transform: translateY(-1px);
    background-color: var(--texto-claro);
}

.btn-calc-outline {
    background-color: transparent;
    color: var(--acento);
    border-radius: var(--radius-sm);
    border: 1px solid var(--acento);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    cursor: pointer;
    flex: 1;
    min-width: 140px;
}

.btn-calc-outline i { font-size: 0.9rem; }

.btn-calc-outline:hover {
    background-color: rgba(4, 150, 255, 0.1);
    transform: translateY(-1px);
}

/* Chart container */
.kpi-grafico {
    flex: 1 1 50%;
    min-width: 280px;
    background-color: #ffffff;
    padding: 1rem;
    border: 1px solid rgba(203, 210, 208, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
}

.kpi-grafico canvas {
    width: 100% !important;
    height: auto !important;
    max-height: 200px;
}

/* Resultados panel */
.resultados-panel {
    background-color: var(--borde);
    padding: 1.25rem 1.5rem;
    border: 1px solid rgba(203, 210, 208, 0.08);
    border-radius: var(--radius-sm);
    margin-top: 1.25rem;
}

.resultados-panel h3 {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--texto-claro);
    margin-bottom: 0.875rem;
}

.resultado-actual {
    background-color: #FFFAFF;
    padding: 0.875rem 1.25rem;
    margin-bottom: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.resultado-actual .label {
    font-size: 1rem;
    color: var(--fondo);
}

.resultado-actual .valor {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--fondo);
    letter-spacing: -0.5px;
}

.resultado-actual .health-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-left: 0.75rem;
    vertical-align: middle;
}

.health-dot.good { background-color: #4CAF50; }
.health-dot.warning { background-color: #FFC107; }
.health-dot.bad { background-color: #ff5252; }

.proyeccion-titulo {
    font-size: 0.65rem;
    color: #FFFAFF;
    margin-bottom: 0.875rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.proyeccion-grid {
    display: grid;
    gap: 0.75rem;
    text-align: center;
}

.proyeccion-grid[data-columns="1"] { grid-template-columns: 1fr; }
.proyeccion-grid[data-columns="2"] { grid-template-columns: repeat(2, 1fr); }
.proyeccion-grid[data-columns="3"] { grid-template-columns: repeat(3, 1fr); }
.proyeccion-grid[data-columns="4"] { grid-template-columns: repeat(4, 1fr); }
.proyeccion-grid[data-columns="5"] { grid-template-columns: repeat(5, 1fr); }

.proyeccion-item {
    padding: 0.75rem 0.5rem;
    background-color: var(--cards);
    border: 1px solid rgba(203, 210, 208, 0.06);
}

.proyeccion-ano {
    font-size: 0.65rem;
    color: #FFFAFF;
    margin-bottom: 0.4rem;
}

.proyeccion-valor {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--acento);
}

.proyeccion-crecimiento {
    font-size: 0.6rem;
    margin-top: 0.2rem;
}

.proyeccion-crecimiento.pos { color: #4CAF50; }
.proyeccion-crecimiento.neg { color: #ff5252; }

/* Dashboard Resumen */
.dashboard-resumen {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.875rem;
    margin-bottom: 2rem;
}

.resumen-card {
    background-color: #646E7840;
    border: 1px solid var(--cards-texto);
    border-radius: var(--radius-sm);
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

.resumen-card:hover {
    border-color: #646E78;
}

.resumen-card .resumen-icon {
    font-size: 1.3rem;
    color: var(--texto-claro);
    margin-bottom: 0.5rem;
}

.resumen-card .resumen-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--texto-claro);
    margin-bottom: 0.3rem;
}

.resumen-card .resumen-valor {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--texto-claro);
}

.resumen-card .resumen-valor.blue { color: var(--acento); }
.resumen-card .resumen-valor.green { color: #4CAF50; }
.resumen-card .resumen-valor.yellow { color: #FFC107; }
.resumen-card .resumen-valor.red { color: #ff5252; }

/* Referencia rapida */
.legend-box {
    background-color: #646E7840;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(203,210,208,0.1);
    padding: 0.875rem 1.25rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
    color: rgba(255,253,253,0.6);
}

.legend-box strong {
    color: var(--texto-claro);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.5rem;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.35rem 1rem;
    color: var(--texto-claro);
}

.legend-grid span span {
    color: #646E78;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .dashboard-resumen {
        grid-template-columns: repeat(3, 1fr);
    }
    .kpi-grafico {
        min-width: 220px;
    }
}

@media (max-width: 768px) {
    .calculadora-section { padding: 1rem; }
    .page-hero { padding: 1.5rem; }
    .page-hero h1 { font-size: 2rem; }
    .kpi-body { padding: 1rem; }
    .kpi-grid-layout { flex-direction: column; }
    .kpi-grafico { min-width: 0; flex: 1 1 100%; }
    .kpi-grafico canvas { max-height: 160px; }
    .variables-grid { grid-template-columns: 1fr; }
    .dashboard-resumen { grid-template-columns: repeat(2, 1fr); }
    .resultado-actual .valor { font-size: 1.35rem; }
    .proyeccion-valor { font-size: 0.95rem; }
    .proyeccion-grid[data-columns="2"],
    .proyeccion-grid[data-columns="3"],
    .proyeccion-grid[data-columns="4"],
    .proyeccion-grid[data-columns="5"] { grid-template-columns: repeat(2, 1fr); }
    .button-container { flex-direction: column; }
    .btn-calc, .btn-calc-outline { min-width: 0; }
}

@media (max-width: 480px) {
    .dashboard-resumen { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
    .resumen-card { padding: 0.75rem; }
    .resumen-card .resumen-valor { font-size: 0.9rem; }
    .periodo-selector select { min-width: 0; flex: 1; }
}

/* MODAL PRO */
.modal-overlay {
    display: none; position: fixed; z-index: 9999; inset: 0;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
    justify-content: center; align-items: center;
}
.modal-overlay.active { display: flex; }
.modal-box {
    background: var(--cards); border: 1px solid var(--borde); border-radius: var(--radius-lg);
    padding: 2rem; max-width: 420px; width: 90%; position: relative;
    animation: fadeInUp 0.3s ease;
}
.modal-box h3 { color: var(--texto-claro); font-size: 1.2rem; margin-bottom: 0.5rem; }
.modal-close {
    position: absolute; top: 0.75rem; right: 1rem; background: none; border: none;
    color: var(--texto-claro); font-size: 1.5rem; cursor: pointer; opacity: 0.7;
}
.modal-close:hover { opacity: 1; }
.modal-box .input-group label { color: var(--texto-claro) !important; }
.modal-box .input-group input { background: #1a1a2e; color: #fff; border-color: var(--borde); }
.modal-box .input-group input:focus { border-color: var(--acento); }