/* --- Color Palette --- */
:root {
    --primary-color: #007bff; /* Deep Blue - Main Brand Color */
    --secondary-color: #17a2b8; /* Cyan - Accent Color */
    --text-dark: #212529;
    --text-light: #f8f9fa;
    --background-light: #f8f9fa; /* Near White */
    --background-primary-light: #e9f7fe; /* Very Light Blue */
    --success-color: #28a745;
}

/* --- Typography and General Styles --- */
body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0px 0 0 0; /* account for fixed header */
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--background-light);
}

@media (max-width: 768px) {
    body {
        padding-top: 0px; 
    }
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* --- Section Headings --- */
.section-title {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    font-size: 2.2em;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--secondary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

.section-sub-heading {
    color: var(--primary-color);
    font-size: 1.4em;
    margin-bottom: 1rem;
}

p.subtitle {
    text-align: center;
    font-size: 1.1em;
    color: #6c757d;
    margin: 0 auto 3rem;
    max-width: 700px;
}

.content-section {
    padding: 4rem 0;
    background-color: #fff;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.primary-bg-light {
    background-color: var(--background-primary-light);
}

.secondary-bg-dark {
    background-color: var(--secondary-color);
    color: white;
}

.text-white {
    color: white !important;
}

.secondary-bg-dark .section-sub-heading {
    color: #ffc107; 
}
.secondary-bg-dark .section-title::after {
    background: #ffc107;
}

/* --- Main Header / Hero Section --- */
.main-header {
    background: linear-gradient(135deg, #0056b3 0%, #007bff 100%);
    color: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.hero-content {
    text-align: center;
    padding: 4rem 0;
}

.hero-title {
    font-size: 3.5em;
    margin: 0 0 10px;
}

.hero-tagline {
    font-size: 1.4em;
    margin-top: 0;
    opacity: 0.95;
    font-weight: 600;
}

/* --- Sticky Navbar --- */
#sticky-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background-color: transparent; 
    transition: all 0.3s ease;
    width: 100%;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5em;
    font-weight: 700;
    color: white;
    text-decoration: none;
    transition: font-size 0.3s ease;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 25px;
    font-weight: 600;
    transition: color 0.3s, font-size 0.3s;
}

.nav-links a:hover {
    color: #ffc107; 
}

.nav-cta {
    background-color: var(--success-color);
    padding: 8px 15px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-cta:hover {
    background-color: #1e7e34;
}

#sticky-navbar.sticky {
    position: fixed;
    top: 0;
    left: 10;
    right: 0;
    z-index: 1000;
    background-color: #004085;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    padding: 10px;
}

#sticky-navbar.sticky .logo {
    font-size: 1.2em;
    margin-left: 0; /* ensures no extra left shift */
    transition: font-size 0.3s, margin-left 0.3s;
}
#sticky-navbar.sticky {
    padding-left: 100%; /* aligns with original container spacing */
    padding-right: 0%;
}

#sticky-navbar.sticky .nav-links a {
    font-size: 0.95em;
}

/* --- Mobile Navigation --- */
@media (max-width: 768px) {
    #sticky-navbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 10px 5%;
    }
    .nav-links {
        display: none;
    }
    #sticky-navbar.sticky .nav-links {
        display: flex;
        align-items: center;
        justify-content: flex-end;
    }
    #sticky-navbar.sticky .nav-links a:not(.nav-cta) {
        display: none; 
    }
    .hero-title { font-size: 2.5em; }
    .hero-tagline { font-size: 1.1em; }
    .section-title { font-size: 1.8em; }
}

/* --- Call to Action --- */
.cta-button {
    display: table;
    margin: 2rem auto 0;
    background-color: var(--success-color);
    color: white;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background-color 0.3s, transform 0.3s;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    background-color: #1e7e34;
    transform: translateY(-3px);
}
.cta-button i { margin-left: 10px; }

/* --- Feature Grid --- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.feature-card i {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.2em;
    color: var(--text-dark);
}

/* --- Content Columns --- */
.content-columns {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 2rem;
}

.column {
    flex: 1 1 45%;
    min-width: 300px;
}

@media (max-width: 768px) {
    .column { flex: 1 1 100%; min-width: unset; }
}

/* --- Checklists --- */
.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    padding: 10px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    font-size: 1.05em;
}

.check-list li i {
    margin-right: 15px;
    color: #ffc107; 
    font-size: 1.2em;
}

/* --- Tables --- */
.table-responsive { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

th, td { padding: 15px; text-align: left; border-bottom: 1px solid #f1f1f1; }

th {
    background-color: var(--primary-color);
    color: white;
    text-transform: uppercase;
    font-size: 0.9em;
}

tr:nth-child(even) { background-color: #f7f7f7; }

.access-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.access-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* --- Case Studies --- */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.case-study-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    border-top: 4px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.case-study-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.case-study-card h3 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.25em;
}

.case-study-card h3 i {
    margin-right: 10px;
    color: var(--secondary-color);
}

/* --- FAQ Accordion --- */
.faq-accordion { margin-top: 2rem; }

.faq-item {
    border: 1px solid #e0e0e0;
    margin-bottom: 12px;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.faq-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

.faq-question {
    background-color: #f8f9fa;
    padding: 15px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s;
    position: relative;
    color: var(--text-dark);
    user-select: none; 
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5em;
    color: var(--primary-color);
    transition: transform 0.3s;
}

.faq-question.active {
    background-color: var(--background-primary-light);
    color: var(--primary-color);
}

.faq-question.active::after { content: '−'; }

.faq-answer {
    padding: 0 20px;
    max-height: 0; 
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
    background-color: #fff;
}

.faq-answer p {
    padding: 15px 0 20px;
    border-top: 1px solid #eee;
    margin: 0;
    font-size: 1em;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 2rem 0;
    background-color: var(--text-dark);
    color: var(--text-light);
    font-size: 0.9em;
}
footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}