/* probabilidad — estilos específicos */
/* Tabs de modo */
.mode-tabs {
    display: flex;
    gap: 0;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.mode-tab {
    flex: 1;
    padding: 0.65rem 0.5rem;
    border: none;
    background: transparent;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
    line-height: 1.3;
}

.mode-tab:not(:last-child) {
    border-right: 2px solid var(--border, #e2e8f0);
}

.mode-tab.active {
    background: var(--primary, #2563eb);
    color: #fff;
}

.mode-tab i {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

/* Campos de entrada */
.inputs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
    margin-bottom: 1rem;
}

.inputs-grid.single {
    grid-template-columns: 1fr;
}

.inputs-grid.triple {
    grid-template-columns: 1fr 1fr 1fr;
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-group label {
    font-size: 0.78rem;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.field-group input,
.field-group select {
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 10px;
    padding: 0.65rem 0.9rem;
    font-family: 'Ubuntu', monospace, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text, #1e293b);
    background: #fff;
    outline: none;
    transition: border-color 0.18s, box-shadow 0.18s;
    width: 100%;
    box-sizing: border-box;
}

.field-group select {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.88rem;
    cursor: pointer;
}

.field-group input:focus,
.field-group select:focus {
    border-color: var(--primary, #2563eb);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.field-hint {
    font-size: 0.73rem;
    color: var(--text-muted, #94a3b8);
    font-family: 'Montserrat', sans-serif;
}

/* Panel de resultados */
.results-dashboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.dash-card {
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border, #e2e8f0);
    background: #fff;
    text-align: center;
}

.dash-card.dash-primary {
    border-color: var(--primary, #2563eb);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.07), rgba(99, 102, 241, 0.05));
}

.dash-card .dash-icon {
    font-size: 1.3rem;
    margin-bottom: 0.35rem;
    color: var(--primary, #2563eb);
}

.dash-card .dash-val {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Ubuntu', monospace, sans-serif;
    color: var(--text, #1e293b);
    line-height: 1.15;
}

.dash-card.dash-primary .dash-val {
    font-size: 2rem;
    color: var(--primary, #2563eb);
}

.dash-card .dash-label {
    font-size: 0.72rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 0.25rem;
}

.dash-card .dash-sub {
    font-size: 0.75rem;
    color: var(--text-muted, #94a3b8);
    font-family: 'Montserrat', sans-serif;
    margin-top: 0.2rem;
}

/* Desglose */
.breakdown-box {
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.breakdown-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.1rem;
    background: var(--primary, #2563eb);
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1.1rem;
    border-bottom: 1px solid var(--border, #e2e8f0);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.84rem;
    gap: 1rem;
}

.breakdown-row:last-child {
    border-bottom: none;
}

.breakdown-row:nth-child(even) {
    background: var(--bg-alt, #f8fafc);
}

.breakdown-row .br-label {
    color: var(--text-muted, #64748b);
    font-weight: 600;
}

.breakdown-row .br-val {
    font-family: 'Ubuntu', monospace, sans-serif;
    font-weight: 700;
    color: var(--text, #1e293b);
    text-align: right;
    flex-shrink: 0;
}

.breakdown-row.br-total {
    background: rgba(37, 99, 235, 0.06);
}

.breakdown-row.br-total .br-label {
    color: var(--text, #1e293b);
    font-size: 0.9rem;
    font-weight: 700;
}

.breakdown-row.br-total .br-val {
    color: var(--primary, #2563eb);
    font-size: 1rem;
}

/* Fórmula aplicada */
.formula-applied {
    background: #0f172a;
    border-radius: 10px;
    padding: 1rem 1.1rem;
    margin-bottom: 1.25rem;
    font-family: 'Ubuntu', monospace, sans-serif;
    font-size: 0.88rem;
    color: #e2e8f0;
    line-height: 1.7;
    overflow-x: auto;
}

.formula-applied .fa-line {
    color: #94a3b8;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: block;
    margin-bottom: 0.35rem;
}

.formula-applied .fv {
    color: #93c5fd;
    font-weight: 700;
}

.formula-applied .fn {
    color: #fda4af;
}

.formula-applied .fr {
    color: #86efac;
    font-weight: 700;
    font-size: 1rem;
}

/* Barra visual de probabilidad */
.prob-bar-wrap {
    margin-bottom: 1.25rem;
}

.prob-bar-label {
    display: flex;
    justify-content: space-between;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted, #64748b);
    margin-bottom: 0.35rem;
}

.prob-bar-track {
    height: 18px;
    background: var(--bg-alt, #f1f5f9);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.prob-bar-fill {
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(90deg, #3b82f6, #6366f1);
    transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 0.5rem;
}

.prob-bar-fill span {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
}

/* Tabla binomial */
.binom-table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border, #e2e8f0);
    margin-bottom: 1.25rem;
}

.binom-table-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
    min-width: 420px;
}

.binom-table-wrap thead {
    background: var(--primary, #2563eb);
    color: #fff;
}

.binom-table-wrap thead th {
    padding: 0.6rem 0.85rem;
    text-align: left;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    white-space: nowrap;
}

.binom-table-wrap thead th:not(:first-child) {
    text-align: right;
}

.binom-table-wrap tbody tr:nth-child(even) {
    background: var(--bg-alt, #f8fafc);
}

.binom-table-wrap tbody tr.row-highlight {
    background: rgba(37, 99, 235, 0.1);
    font-weight: 700;
}

.binom-table-wrap tbody td {
    padding: 0.5rem 0.85rem;
    border-bottom: 1px solid var(--border, #e2e8f0);
    font-family: 'Montserrat', sans-serif;
    color: var(--text, #1e293b);
}

.binom-table-wrap tbody tr:last-child td {
    border-bottom: none;
}

.binom-table-wrap tbody td:not(:first-child) {
    text-align: right;
    font-family: 'Ubuntu', monospace, sans-serif;
}

/* Tabla de referencia */
.ref-table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border, #e2e8f0);
}

.ref-table-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
    min-width: 460px;
}

.ref-table-wrap thead {
    background: var(--primary, #2563eb);
    color: #fff;
}

.ref-table-wrap thead th {
    padding: 0.65rem 1rem;
    text-align: left;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
}

.ref-table-wrap tbody tr:nth-child(even) {
    background: var(--bg-alt, #f8fafc);
}

.ref-table-wrap tbody td {
    padding: 0.55rem 1rem;
    border-bottom: 1px solid var(--border, #e2e8f0);
    font-family: 'Montserrat', sans-serif;
    color: var(--text, #1e293b);
    vertical-align: top;
    line-height: 1.5;
}

.ref-table-wrap tbody td:nth-child(2) {
    font-family: 'Ubuntu', monospace, sans-serif;
    font-size: 0.82rem;
}

.ref-table-wrap tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive */
@media (max-width: 640px) {
    .mode-tabs {
        flex-wrap: wrap;
        border-radius: 10px;
    }

    .mode-tab {
        flex: 1 1 45%;
        border-right: none !important;
        border-bottom: 2px solid var(--border, #e2e8f0);
    }

    .mode-tab:nth-child(3),
    .mode-tab:nth-child(4) {
        border-bottom: none;
    }

    .inputs-grid {
        grid-template-columns: 1fr;
    }

    .inputs-grid.triple {
        grid-template-columns: 1fr;
    }

    .results-dashboard {
        grid-template-columns: 1fr 1fr;
    }

    .results-dashboard .dash-primary {
        grid-column: 1 / -1;
    }
}

@media (max-width: 380px) {
    .results-dashboard {
        grid-template-columns: 1fr;
    }
}