/* --- Global Resets & Brand Colors --- */
:root {
    --midnight-blue: #0a192f;
    --industrial-blue: #172a45;
    --accent-blue: #30475e;
    --text-light: #f8f9fa;
    --text-dark: #333;
    --border-color: #eaeaea;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Navigation --- */
.main-header {
    background: #fff;
    border-bottom: 2px solid var(--midnight-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 5px 0;
}

.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo { max-height: 100px; width: auto; padding: 5px 0; }

.nav-links a {
    text-decoration: none;
    color: var(--midnight-blue);
    font-weight: 600;
    font-size: 0.95rem;
    margin-left: 25px;
    transition: color 0.3s;
    text-transform: uppercase;
}

.nav-links a:hover, .nav-links a.active { color: #555; border-bottom: 2px solid var(--midnight-blue); }

/* --- Hero Section --- */
.hero-blue {
    background: linear-gradient(135deg, var(--midnight-blue) 0%, var(--industrial-blue) 100%);
    padding: 40px 20px;
    text-align: center;
}

.hero-blue h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: white;
    text-align: center;
}

.hero-blue .lead {
    font-size: 1.1rem;
    opacity: 0.9;
    color: white;
    margin: 0 auto;
    text-align: center;
    max-width: 900px;
}

/* --- Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
    flex: 1;
}

.bg-light { background-color: #f4f7f6; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    background: var(--midnight-blue);
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 15px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.btn:hover { background: var(--accent-blue); transform: translateY(-2px); }

/* --- Content Styling --- */
h1 { font-size: 2.8rem; margin-bottom: 20px; }
h2 { font-size: 2rem; color: var(--midnight-blue); margin-bottom: 25px; }

.split-layout { display: flex; align-items: center; gap: 60px; padding: 40px 0; flex-wrap: wrap; }
.split-layout .content, .split-layout .image-container { flex: 1; min-width: 300px; }

.responsive-img {
    max-width: 100%;
    height: auto;
    border-left: 8px solid var(--midnight-blue);
    box-shadow: 10px 10px 0px rgba(10, 25, 47, 0.05);
}

/* --- Lists --- */
.spec-box { padding: 25px; border-left: 4px solid #4dabf7; margin: 20px 0; }
.check-list { list-style-type: none; margin-top: 15px; }
.check-list li { position: relative; padding-left: 25px; margin-bottom: 10px; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: #4dabf7; font-weight: bold; }

/* --- Logo Grid --- */
.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    align-items: center;
    justify-items: center;
    width: 100%;
    margin-top: 50px;
}

.logo-item {
    display: flex;
    justify-content: center;
    width: 100%;
}

.logo-item img {
    max-width: 100%;
    height: 80px;
    object-fit: contain;
    filter: grayscale(100%);
    transition: 0.3s;
}

.logo-item img:hover { filter: grayscale(0%); }

/* --- Footer --- */
.main-footer { background: var(--midnight-blue); padding: 60px 0; color: #cbd5e0; margin-top: auto; }
.main-footer h4 { color: #fff; border-bottom: 1px solid #30475e; padding-bottom: 10px; margin-bottom: 15px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; padding: 0 20px; }