/* Hero Section */
.hero-section {
    background-color: var(--bg-dark-green);
    background-image: linear-gradient(135deg, var(--bg-dark-green) 0%, #061811 100%);
    color: var(--text-light);
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 150px;
    padding-top: 100px;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    display: flex;
    align-items: center;
    padding-top: 80px;
    padding-bottom: 60px;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.6;
}

.btn-hero {
    padding: 12px 35px;
    border-radius: 6px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-right: 15px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.btn-primary-custom {
    background-color: var(--accent-green);
    border: 2px solid var(--accent-green);
    color: var(--bg-dark-green);
}

.btn-primary-custom:hover {
    background-color: #4ac258;
    border-color: #4ac258;
    transform: translateY(-2px);
    color: var(--bg-dark-green);
}

.btn-secondary-custom {
    background-color: transparent;
    border: 2px solid var(--accent-green);
    color: var(--accent-green) !important;
}

.btn-secondary-custom:hover {
    background-color: var(--accent-green);
    color: var(--bg-dark-green);
    transform: translateY(-2px);
}

/* Services Section */
.service-card {
    background: #fff;
    padding: 40px 30px;
    height: 100%;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    border-radius: 8px;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--bg-dark-green);
    margin-bottom: 25px;
    display: inline-block;
}

.service-title {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--bg-dark-green);
    margin-bottom: 20px;
}

.service-desc {
    color: var(--text-body-dark);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Stacking Cards Section */
.sticky-stack-wrapper {
    position: relative;
    padding-bottom: 50px;
}

.sticky-header {
    position: -webkit-sticky;
    position: sticky;
    top: 90px;
    /* z-index: 10; */
    /* background-color: #fff; */
    padding-top: 20px;
    padding-bottom: 20px;
    transition: top 0.3s;
}

.stacked-card {
    position: sticky;
    border-radius: 20px;
    padding: 40px 50px 50px 50px;
    margin-bottom: 40px;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    overflow: hidden;
    border-top: 1px solid rgba(0,0,0,0.05);
    background: #fff;
}

.card-style-1 {
    background-color: #fff;
    border: 2px solid var(--accent-green);
    top: 190px;
    color: var(--text-dark);
    z-index: 1;
}

.card-style-2 {
    background-color: var(--bg-dark-green);
    border: none;
    top: 240px;
    color: #fff;
    z-index: 2;
}

.card-style-3 {
    background-color: #fff;
    border: 2px solid var(--accent-green);
    top: 320px;
    color: var(--text-dark);
    z-index: 3;
}

.stack-title {
    font-weight: 800;
    font-size: 2.2rem;
    margin-bottom: 20px;
    margin-top: 0;
}

.stack-text {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.9;
}

.stack-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
    max-height: 350px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.btn-stack {
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s;
    display: inline-block;
    text-decoration: none;
    margin-top: 10px;
}

.btn-stack-outline {
    background: transparent;
    border: 2px solid var(--accent-green);
    color: var(--text-dark);
}

.btn-stack-outline:hover {
    background: var(--accent-green);
    color: var(--bg-dark-green);
}

.btn-stack-fill {
    background: var(--accent-green);
    border: 2px solid var(--accent-green);
    color: var(--bg-dark-green);
}

.btn-stack-fill:hover {
    background: #fff;
    color: var(--bg-dark-green);
    border-color: #fff;
}

/* KPI Section */
.kpi-section {
    background-color: var(--bg-dark-green);
    color: #fff;
    position: relative;
}

.kpi-card {
    text-align: center;
    padding: 20px;
    position: relative;
}

.kpi-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-green);
    line-height: 1;
    margin-bottom: 15px;
    display: block;
}

.kpi-label {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0;
}

.kpi-icon {
    font-size: 2rem;
    color: rgba(255,255,255,0.2);
    margin-bottom: 15px;
}

/* Industries Section */
.industry-card {
    text-align: center;
    padding: 30px;
    transition: transform 0.3s ease;
}

.industry-card:hover {
    transform: translateY(-5px);
}

.industry-icon {
    font-size: 3rem;
    color: var(--bg-dark-green);
    margin-bottom: 20px;
}

.industry-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--bg-dark-green);
    margin-bottom: 0;
}

/* FAQ Section */
.faq-accordion .accordion-item {
    border: none;
    background: transparent;
    margin-bottom: 15px;
}

.faq-accordion .accordion-button {
    border-radius: 8px !important;
    border: 1px solid rgba(13, 38, 28, 0.1);
    font-weight: 600;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    padding: 20px 25px;
    background-color: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.03);
    transition: all 0.3s ease;
}

.faq-accordion .accordion-button:not(.collapsed) {
    background-color: var(--bg-light-section);
    color: var(--bg-dark-green);
    border-color: var(--accent-green);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.faq-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: var(--accent-green);
}

.faq-accordion .accordion-button::after {
    background-size: 1.25rem;
    transition: all 0.3s;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230D261C'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transform: rotate(-180deg);
}

.faq-accordion .accordion-body {
    padding: 20px 25px;
    color: var(--text-body-dark);
    line-height: 1.8;
    background-color: #fff;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    border: 1px solid rgba(13, 38, 28, 0.1);
    border-top: none;
    margin-top: -5px;
}

.section-badge{
    color: var(--accent-green);
}

/* Responsive */
@media (max-width: 991px) {
    .hero-title { font-size: 2.5rem; }
    .stacked-card { padding: 30px; top: 80px; margin-bottom: 20px; }
    .card-style-2 { top: 95px; }
    .card-style-3 { top: 110px; }
    .stack-img { margin-top: 20px; max-height: 250px; }
    .order-lg-first { order: 1 !important; }
    .kpi-number { font-size: 3rem; }
}

@media (max-width: 576px) {
    .hero-title { font-size: 1.6rem; padding-top: 20px; }
    .kpi-card { margin-bottom: 30px; }
    .btn-hero { margin-right: 0; }
    .stack-title{ font-size: 2rem;}
}