/* Styles moved from products.html */

/* From logo text */
.logo-text {
    font-family: 'Permanent Marker', cursive;
    text-anchor: middle;
}

/* Eco tint for sustainable products */
.eco-tint {
    background: rgba(46, 204, 113, 0.15) !important;
    border: 1px solid rgba(46, 204, 113, 0.3) !important;
}

.hexagon-inner.eco-tint:hover {
    background: rgba(46, 204, 113, 0.25) !important;
    border-color: rgba(46, 204, 113, 0.5) !important;
    box-shadow: 0 0 15px rgba(46, 204, 113, 0.3) !important;
}

.feature-row.eco-tint {
    background: rgba(46, 204, 113, 0.05) !important;
    border: 1px solid rgba(46, 204, 113, 0.2) !important;
}

/* Sustainable Grid layout */
.sustainable-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    padding: 20px 0;
}

.sustainable-card {
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sustainable-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(46, 204, 113, 0.25) !important;
}

.sustainable-card .feature-content {
    padding: 30px;
    flex: 1;
}

.sustainable-card .feature-visual {
    padding: 0 30px 30px 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sustainable-card h3 {
    font-size: 1.6rem;
    margin: 15px 0;
}

.sustainable-card h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.sustainable-card .grades {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sustainable-card .grade-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
    flex: 1 1 auto;
    text-align: center;
}

/* Eco-friendly Advertisement Block */
.eco-ad-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.eco-ad-card {
    padding: 60px 40px;
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
    width: 1250px;
}

.eco-ad-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(46, 204, 113, 0.2) !important;
}

.eco-ad-icon {
    font-size: 5rem !important;
    color: #4caf50;
    margin-bottom: 20px;
}

.eco-ad-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #4caf50;
}

.eco-ad-desc {
    font-size: 1.2rem;
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 900px;
    color: var(--black);
}

.eco-granule-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
}

.eco-tag {
    background: rgba(46, 204, 113, 0.1);
    color: #27ae60;
    border: 1px solid rgba(46, 204, 113, 0.4);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.eco-tag:hover {
    background: rgba(46, 204, 113, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(46, 204, 113, 0.15);
}

/* Sustainable Tabs Design */
.sus-tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    background: rgba(46, 204, 113, 0.1);
    border-bottom: 1px solid rgba(46, 204, 113, 0.2);
}

.sus-tab-btn {
    background: none;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--black);
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.sus-tab-btn:hover {
    background: rgba(46, 204, 113, 0.15);
}

.sus-tab-btn.active {
    background: rgba(46, 204, 113, 0.25);
    color: #27ae60;
    border-bottom: 3px solid #27ae60;
}

.sus-tab-pane {
    animation: fadeEffect 0.5s;
}

@keyframes fadeEffect {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Engineering Tabs Design */
.eng-tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    background: rgba(71, 108, 255, 0.05);
    border-bottom: 1px solid rgba(71, 108, 255, 0.2);
    border-radius: 15px;
    padding: 5px;
}

.eng-tab-btn {
    background: none;
    border: none;
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--black);
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    margin: 5px;
    border-radius: 8px;
}

.eng-tab-btn:hover {
    background: rgba(71, 108, 255, 0.1);
}

.eng-tab-btn.active {
    background: rgba(71, 108, 255, 0.15);
    color: #476cff;
    border-bottom: 3px solid #476cff;
}

.sustainable-nav-btn {
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.35);
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.14), rgba(46, 204, 113, 0.22));
    box-shadow: 0 0 0 1px rgba(39, 174, 96, 0.12), 0 8px 20px rgba(39, 174, 96, 0.12);
}

.sustainable-nav-btn:hover {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.22), rgba(46, 204, 113, 0.3));
    color: #1f8f4d;
}

.sustainable-nav-btn:focus-visible {
    outline: 2px solid rgba(39, 174, 96, 0.7);
    outline-offset: 2px;
}

.eng-tab-pane {
    animation: fadeEffect 0.5s;
}

/* Sustainable Highlights */
.sustainable-highlights {
    margin-top: 35px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 25px;
    margin-bottom: 20px;
}

.highlight-item {
    background: rgba(46, 204, 113, 0.08);
    border: 1px solid rgba(46, 204, 113, 0.25);
    border-radius: 16px;
    padding: 22px 28px;
    max-width: 450px;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    flex: 1;
    min-width: 320px;
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(46, 204, 113, 0.15);
    background: rgba(46, 204, 113, 0.12);
}

.highlight-item h4 {
    color: #27ae60;
    margin-bottom: 12px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.highlight-item .highlight-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.highlight-item .highlight-tag {
    background: rgba(46, 204, 113, 0.15);
    color: #1f8f4d;
    border: 1px solid rgba(46, 204, 113, 0.4);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
}

.highlight-item .highlight-tag:hover {
    background: rgba(46, 204, 113, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(46, 204, 113, 0.2);
}

.highlight-item .custom-shade-tag {
    background: linear-gradient(135deg, rgba(71, 108, 255, 0.1), rgba(106, 17, 203, 0.1));
    color: #476cff;
    border-color: rgba(71, 108, 255, 0.3);
}

.highlight-item .custom-shade-tag:hover {
    background: linear-gradient(135deg, rgba(71, 108, 255, 0.2), rgba(106, 17, 203, 0.2));
    box-shadow: 0 4px 10px rgba(71, 108, 255, 0.2);
}

/* Scroll to Top Button */
#scrollToTopBtn {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background: linear-gradient(135deg, rgba(71, 108, 255, 0.9), rgba(106, 17, 203, 0.9));
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    opacity: 0;
    align-items: center;
    justify-content: center;
}

#scrollToTopBtn:hover {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(71, 108, 255, 1), rgba(106, 17, 203, 1));
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

#scrollToTopBtn .material-symbols-outlined {
    font-size: 1.5rem;
}