/* ════════════════════════════════════════════
   SYSTEM TABS (Softener / Osmosis)
════════════════════════════════════════════ */

.sys-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 0 auto 48px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(6,182,212,0.2);
    border-radius: 60px;
    padding: 6px;
    width: fit-content;
}

.sys-tab {
    padding: 14px 36px;
    border-radius: 50px;
    border: none;
    background: transparent;
    color: rgba(255,255,255,0.6);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.35s ease;
    letter-spacing: 0.02em;
}

.sys-tab:hover {
    color: #fff;
    background: rgba(6,182,212,0.1);
}

.sys-tab.active {
    background: linear-gradient(135deg, #06b6d4, #10b981);
    color: #fff;
    box-shadow: 0 4px 20px rgba(6,182,212,0.4);
}

.sys-panel {
    display: none;
    animation: fadeInUp 0.5s ease both;
}

.sys-panel.active {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ════════════════════════════════════════════
   OSMOSIS INVERSA PANEL
════════════════════════════════════════════ */

.osmosis-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
}

.osmosis-img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(6,182,212,0.08) 0%, transparent 70%);
    border-radius: 24px;
    padding: 20px;
    position: relative;
}

.osmosis-img-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    border: 1px solid rgba(6,182,212,0.15);
    pointer-events: none;
}

.osmosis-diagram-img {
    width: 100%;
    max-width: 480px;
    height: auto;
    filter: drop-shadow(0 20px 50px rgba(6,182,212,0.25));
    transition: transform 0.4s ease, filter 0.4s ease;
}

.osmosis-diagram-img:hover {
    transform: scale(1.03) translateY(-6px);
    filter: drop-shadow(0 30px 60px rgba(6,182,212,0.4));
}

.osmosis-badge {
    display: inline-block;
    background: linear-gradient(135deg, #06b6d4, #10b981);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.osmosis-heading {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 16px;
}

.osmosis-intro {
    color: rgba(255,255,255,0.75);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 28px;
}

.osmosis-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 28px;
}

.osmosis-option-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(6,182,212,0.15);
    border-radius: 14px;
    padding: 16px;
    transition: all 0.3s ease;
}

.osmosis-option-card:hover {
    background: rgba(6,182,212,0.08);
    border-color: rgba(6,182,212,0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(6,182,212,0.15);
}

.osmosis-option-num {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #06b6d4, #10b981);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 12px rgba(6,182,212,0.35);
}

.osmosis-option-body h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.osmosis-option-body p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.5;
    margin: 0;
}

.osmosis-tagline {
    font-size: 1rem;
    font-style: italic;
    font-weight: 600;
    color: #06b6d4;
    border-left: 3px solid #10b981;
    padding-left: 16px;
    margin-bottom: 28px;
    line-height: 1.5;
}

/* ════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════ */

@media (max-width: 900px) {
    .osmosis-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .osmosis-options {
        grid-template-columns: 1fr 1fr;
    }

    .sys-tab {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

@media (max-width: 600px) {
    .sys-tabs {
        flex-direction: column;
        width: 100%;
        border-radius: 20px;
    }

    .osmosis-options {
        grid-template-columns: 1fr;
    }

    .osmosis-diagram-img {
        max-width: 320px;
    }
}