/* css/index.css */

/* Hero Slider */
.hero-slider {
    position: relative;
    height: 100vh;
    min-height: 800px;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s var(--transition-smooth), visibility 0.8s var(--transition-smooth);
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    z-index: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--white);
}

.slide-pre-title {
    display: block;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    margin-bottom: 1.5rem;
    color: var(--accent-orange);
    font-weight: 500;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s var(--transition-smooth) 0.2s;
}

.slide.active .slide-pre-title {
    transform: translateY(0);
    opacity: 1;
}

.slide-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    max-width: 800px;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s var(--transition-smooth) 0.4s;
}

.slide.active .slide-title {
    transform: translateY(0);
    opacity: 1;
}

.slide-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    font-weight: 600;
    color: white;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s var(--transition-smooth) 0.6s;
}

.slide.active .slide-subtitle {
    transform: translateY(0);
    opacity: 1;
}

.slide-buttons {
    display: flex;
    gap: 1rem;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s var(--transition-smooth) 0.8s;
}

.slide.active .slide-buttons {
    transform: translateY(0);
    opacity: 1;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    z-index: 3;
    display: flex;
    gap: 0.5rem;
}

.slider-prev,
.slider-next {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    backdrop-filter: blur(5px);
}

.slider-prev:hover,
.slider-next:hover {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    transform: scale(1.1);
}

.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 1rem;
}

.dot {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--accent-orange);
    transform: scale(1.3);
    box-shadow: 0 0 20px var(--accent-orange);
}

.slider-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 3;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-orange), var(--ocean-blue));
    width: 0%;
    transition: width 5s linear;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, var(--white), transparent);
    animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
    0% { transform: scaleY(0.3); opacity: 0.3; }
    50% { transform: scaleY(1); opacity: 1; }
    100% { transform: scaleY(0.3); opacity: 0.3; }
}

/* Welcome Section */
.welcome-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.welcome-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    align-items: center;
}

.welcome-content {
    padding-right: 2rem;
}

.welcome-text {
    font-size: 1.1rem;
    color: #666;
    margin: 2rem 0;
    line-height: 1.8;
}

.welcome-contact {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.contact-block {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-block i {
    width: 40px;
    height: 40px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-orange);
    font-size: 1rem;
}

.contact-block a {
    color: var(--deep-navy);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-block a:hover {
    color: var(--accent-orange);
}

.welcome-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.welcome-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.welcome-image:hover img {
    transform: scale(1.05);
}

.experience-badge {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent-orange);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: floatBadge 3s ease infinite;
}

@keyframes floatBadge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.experience-badge .years {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.8rem;
    opacity: 0.9;
}

/* Services Grid */
.services-grid {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.services-grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--accent-orange), var(--ocean-blue));
    transition: height 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-card:hover::before {
    height: 100%;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--deep-navy), var(--ocean-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--deep-navy);
}

.service-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-link {
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.service-link:hover {
    gap: 1rem;
}

/* Fun Facts */
.fun-facts {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--deep-navy), var(--ocean-blue));
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.fun-facts::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0 50 L100 50 M0 60 L100 60 M0 70 L100 70" stroke="%23F47B20" stroke-width="0.2" opacity="0.1"/></svg>');
    background-size: cover;
}

.facts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--grid-gap);
    position: relative;
    z-index: 1;
}

.fact-card {
    text-align: center;
}

.fact-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-orange);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.fact-counter {
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
}

.fact-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.9;
}

/* About Preview */
.about-preview {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    align-items: center;
}

.about-content {
    padding-right: 2rem;
}

.about-text {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature i {
    color: var(--accent-orange);
    font-size: 1rem;
}

.feature span {
    color: var(--deep-navy);
    font-weight: 500;
}

.about-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-stats {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    right: 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    background: rgba(11, 31, 51, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 8px;
    color: var(--white);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.6s ease;
}

.about-image:hover .about-stats {
    transform: translateY(0);
    opacity: 1;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-orange);
}

.stat-label {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Operate Section */
.operate-section {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.operate-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
}

.operate-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
}

.operate-image {
    position: relative;
    height: 400px;
}

.operate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.operate-card:hover .operate-image img {
    transform: scale(1.1);
}

.operate-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(to top, rgba(11,31,51,0.95), transparent);
    color: var(--white);
    transform: translateY(100px);
    transition: transform 0.4s ease;
}

.operate-card:hover .operate-overlay {
    transform: translateY(0);
}

.operate-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.operate-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Section Headers */
.section-header {
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 2; /* keep headers above decorative elements */
}

.section-header.centered {
    text-align: center;
}

.section-subtitle {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-orange);
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--deep-navy);
}

.section-description {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* Capacity Section */
.capacity {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.tank-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
    margin-top: 3rem;
}

.tank {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.tank:hover {
    transform: translateY(-10px);
}

.tank-silhouette {
    width: 200px;
    height: 300px;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, var(--deep-navy) 0%, var(--ocean-blue) 100%);
    border-radius: 100px 100px 0 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 1; /* ensure tanks stay behind headers */
}

.tank-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--accent-orange), var(--ocean-blue));
    transition: height 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.tank-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    animation: glowMove 3s linear infinite;
}

.tank-capacity-indicator {
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--accent-orange), transparent);
    opacity: 0.5;
}

@keyframes glowMove {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.tank-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--deep-navy);
}

.tank-stats {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.counter {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-orange);
    line-height: 1;
}

.unit {
    font-size: 1rem;
    color: #666;
    text-transform: uppercase;
}

.tank-desc {
    font-size: 0.9rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Responsibility Preview */
.responsibility-preview {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
}

.card {
    background: var(--white);
    padding: 2.5rem;
    position: relative;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s var(--transition-smooth);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-orange), transparent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover .card-border {
    transform: scaleX(1);
}

.card-icon {
    margin-bottom: 1.5rem;
}

.card-icon i {
    font-size: 3rem;
    color: var(--accent-orange);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--deep-navy);
}

.card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.card-link {
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    display: inline-block;
}

.card-link:hover {
    transform: translateX(5px);
}

/* Testimonial Section */
.testimonial-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, rgba(11,31,51,0.85), rgba(30,58,95,0.85)), 
                url('../assets/Concord-Mockups/immhgf5-1.jpg') center/cover no-repeat;
    color: var(--white);
    position: relative;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    align-items: center;
}

.testimonial-content .section-title {
    color: var(--white);
}

.testimonial-quote {
    font-size: 1.2rem;
    line-height: 1.8;
    margin: 2rem 0;
    font-style: italic;
    color: var(--light-gray);
}

.testimonial-author {
    margin-top: 1.5rem;
}

.testimonial-author strong {
    display: block;
    font-size: 1.2rem;
    color: var(--accent-orange);
}

.testimonial-author span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.testimonial-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Testimonial carousel */
.testimonial-slider {
    position: relative;
    overflow: hidden;
}

.testimonial-slide {
    display: none;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.testimonial-slide.active {
    display: block;
    opacity: 1;
}

.testimonial-controls {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.testimonial-controls button {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1rem;
    backdrop-filter: blur(5px);
}

.testimonial-controls button:hover {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    transform: scale(1.1);
}

.testimonial-dots {
    margin-top: 0.75rem;
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.testimonial-dots .dot {
    width: 10px;
    height: 10px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    cursor: pointer;
}

.testimonial-dots .dot.active {
    background: var(--accent-orange);
}

.stat-block {
    text-align: center;
}

.stat-block .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-orange);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-block .stat-desc {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

/* Global Presence Section */
.global-presence {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
    position: relative;
    overflow: hidden;
}

.map-container {
    position: relative;
    width: 100%;
    height: 500px;
    margin-top: var(--spacing-lg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

#map {
    width: 100%;
    height: 100%;
    z-index: 1;
}

.location-card {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 350px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 10;
    animation: slideInRight 0.8s var(--transition-smooth);
}

.location-card-inner {
    padding: 2rem;
}

.location-card h4 {
    color: var(--deep-navy);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.location-card h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-orange);
}

.location-card address {
    font-style: normal;
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.contact-details {
    border-top: 1px solid var(--light-gray);
    padding-top: 1.5rem;
}

.contact-item {
    display: flex;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.contact-label {
    min-width: 60px;
    font-weight: 600;
    color: var(--deep-navy);
}

.contact-item a {
    color: var(--accent-orange);
    text-decoration: none;
    transition: color 0.3s ease;
    word-break: break-word;
}

.contact-item a:hover {
    color: var(--deep-navy);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Styles */
@media (max-width: 968px) {
    .map-container {
        height: 600px;
    }
    
    .location-card {
        position: static;
        width: 100%;
        margin-top: 20px;
        transform: none;
        animation: fadeIn 0.8s var(--transition-smooth);
    }
    
    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .map-container {
        display: flex;
        flex-direction: column;
    }
    
    #map {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .global-presence {
        padding: var(--spacing-xl) 0;
    }
    
    .map-container {
        height: auto;
        margin-top: var(--spacing-md);
    }
    
    #map {
        height: 350px;
    }
    
    .location-card-inner {
        padding: 1.5rem;
    }
    
    .location-card h4 {
        font-size: 1.1rem;
    }
    
    .contact-item {
        flex-direction: column;
    }
    
    .contact-label {
        margin-bottom: 0.25rem;
    }
}

@media (max-width: 480px) {
    #map {
        height: 300px;
    }
    
    .location-card-inner {
        padding: 1.25rem;
    }
    
    .location-card address {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .contact-item {
        font-size: 0.9rem;
    }
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    align-items: start;
}

.faq-content {
    padding-right: 2rem;
}

.faq-intro {
    font-size: 1.1rem;
    color: #666;
    margin: 1.5rem 0;
    line-height: 1.8;
}

.accordion-item {
    margin-bottom: 1rem;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    overflow: hidden;
}

.accordion-header {
    padding: 1.25rem;
    background: var(--white);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.accordion-header:hover {
    background: var(--light-gray);
}

.accordion-header h3 {
    font-size: 1rem;
    margin: 0;
    color: var(--deep-navy);
}

.accordion-icon {
    color: var(--accent-orange);
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    padding: 0 1.25rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background: var(--light-gray);
}

.accordion-item.active .accordion-content {
    padding: 1.25rem;
    max-height: 200px;
}

.accordion-content p {
    color: #666;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .slide-title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .tank-container {
        gap: 1.5rem;
    }
    
    .services-grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    .slide-title {
        font-size: 2.5rem;
    }
    
    .tank-container,
    .cards-container,
    .facts-grid,
    .operate-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .welcome-grid,
    .about-grid,
    .testimonial-grid,
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .welcome-content,
    .about-content,
    .faq-content {
        padding-right: 0;
    }
    
    .testimonial-stats {
        order: -1;
    }
    
    .map-container {
        height: auto;
        min-height: 500px;
    }
    
    .location-card {
        position: relative;
        bottom: 0;
        right: 0;
        margin: 2rem auto;
        max-width: 90%;
    }
    
    .slider-controls {
        bottom: 5rem;
    }
}

@media (max-width: 768px) {
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .tank-container,
    .cards-container,
    .facts-grid,
    .services-grid-container,
    .operate-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .fact-number {
        font-size: 2.5rem;
    }
    
    .testimonial-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .about-stats {
        position: relative;
        bottom: 0;
        left: 0;
        right: 0;
        transform: none;
        opacity: 1;
        margin-top: 1rem;
        background: var(--deep-navy);
    }
    
    .operate-image {
        height: 300px;
    }
    
    .slider-dots {
        bottom: 5rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .slide-pre-title {
        font-size: 0.8rem;
    }
    
    .slide-title {
        font-size: 1.75rem;
    }
    
    .slide-subtitle {
        font-size: 1rem;
    }
    
    .section-subtitle {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .tank-silhouette {
        width: 150px;
        height: 225px;
    }
    
    .counter {
        font-size: 2rem;
    }
    
    .location-card-inner {
        padding: 1.5rem;
    }
    
    .welcome-contact {
        flex-direction: column;
        gap: 1rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}