/* Base Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.display-4 {
    font-weight: 800;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #0d6efd;
}

.section-subtitle {
    color: #6c757d;
    font-size: 1.1rem;
}

/* Hero Sections */
.hero-section {
    padding: 80px 0;
}

/* Feature Cards */
.feature-card {
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Product Cards */
.product-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.product-info {
    background: #fff;
}

.product-specs {
    list-style: none;
    padding-left: 0;
}

.product-specs li {
    padding: 5px 0;
    position: relative;
    padding-left: 25px;
}

.product-specs li:before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: #0d6efd;
}

/* Process Steps */
.process-step {
    display: flex;
    margin-bottom: 30px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #0d6efd;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content {
    flex-grow: 1;
}

/* Comparison Tables */
.comparison-table table {
    border-radius: 8px;
    overflow: hidden;
}

.comparison-table th {
    font-weight: 600;
}

/* Accordions */
.accordion-button:not(.collapsed) {
    background-color: rgba(13, 110, 253, 0.1);
    color: #0d6efd;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(13, 110, 253, 0.25);
}

/* Specification Tables */
.specs-table table {
    border-radius: 8px;
    overflow: hidden;
}

.specs-table th {
    font-weight: 600;
}

/* Application Lists */
.app-list {
    list-style: none;
    padding-left: 0;
}

.app-list li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.app-list li:last-child {
    border-bottom: none;
}

.app-list i {
    width: 25px;
    text-align: center;
}

/* Product Series Cards */
.series-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: 100%;
}

.series-header {
    padding: 15px;
}

.series-body {
    background: #fff;
    padding: 20px;
}

.series-features {
    list-style: none;
    padding-left: 0;
    margin-bottom: 20px;
}

.series-features li {
    padding: 5px 0;
    position: relative;
    padding-left: 25px;
}

.series-features li:before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: #0d6efd;
}

/* Component Items */
.component-item {
    display: flex;
    margin-bottom: 20px;
}

.component-icon {
    width: 50px;
    height: 50px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
    color: #0d6efd;
    font-size: 1.25rem;
}

.component-text {
    flex-grow: 1;
}

/* Panel Type Cards */
.panel-type-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: 100%;
}

.panel-type-content {
    background: #fff;
    padding: 20px;
}

.panel-features {
    list-style: none;
    padding-left: 0;
}

.panel-features li {
    padding: 5px 0;
}

/* Problem Cards */
.problem-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    height: 100%;
    text-align: center;
}

.problem-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
}

/* Solution Cards */
.solution-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: 100%;
}

.solution-header {
    padding: 15px;
}

.solution-body {
    background: #fff;
    padding: 20px;
}

.solution-features {
    list-style: none;
    padding-left: 0;
    margin-bottom: 20px;
}

.solution-features li {
    padding: 5px 0;
    position: relative;
    padding-left: 25px;
}

.solution-features li:before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
}

/* Benefit Cards */
.benefit-card {
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.benefit-icon {
    color: #0d6efd;
}

/* Selection Steps */
.selection-steps {
    position: relative;
    padding-left: 50px;
}

.selection-steps:before {
    content: '';
    position: absolute;
    left: 25px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #0d6efd;
}

.step {
    position: relative;
    margin-bottom: 30px;
}

.step-number {
    position: absolute;
    left: -50px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #0d6efd;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
}

.step-content {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
        text-align: center;
    }
    
    .process-step {
        flex-direction: column;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .selection-steps {
        padding-left: 30px;
    }
    
    .step-number {
        left: -30px;
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}