:root {
    --primary: #1b365d;       /* Deep Trust Blue */
    --accent: #2e7d32;        /* Growth Green */
    --light-bg: #f8fafc;      /* Soft Off-White */
    --dark-text: #334155;     /* Slate Dark Text */
    --white: #ffffff;
    --border-color: #cbd5e1;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--dark-text);
    background-color: var(--white);
    line-height: 1.6;
}

/* Header & Logo Proportions */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.site-logo {
    height: 48px;       /* Balanced, crisp header logo size */
    max-height: 48px;
    width: auto;
    object-fit: contain;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.brand-sub {
    font-size: 0.75rem;
    color: #64748b;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 600;
    transition: color 0.3s ease;
}

nav a:hover, nav a.active {
    color: var(--accent);
}

/* Hero Section & Headline Styling */
.hero {
    background: linear-gradient(rgba(27, 54, 93, 0.9), rgba(27, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    color: var(--white);
    text-align: center;
    padding: 5rem 2rem;
}

.hero h1 {
    font-size: 2.4rem;
    line-height: 1.35;
    margin-bottom: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-brand {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    display: block;
    font-size: 1.8rem;
    font-weight: 400;
    font-style: italic;
    color: #e2e8f0;
}

.hero p {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    color: #e2e8f0;
}

.btn-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, background-color 0.2s;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #235d26;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary);
    transform: translateY(-2px);
}

/* Page Headers */
.page-header {
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
    padding: 3.5rem 2rem;
}

.page-header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.05rem;
    color: #cbd5e1;
    max-width: 600px;
    margin: 0 auto;
}

/* General Layout Containers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

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

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 2.5rem;
}

/* Video Showcase Container */
.video-wrapper {
    max-width: 550px;
    margin: 0 auto;
    width: 100%;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    border-radius: 8px;
    overflow: hidden;
    background: #000;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
}

/* Grid & Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.03);
    border-top: 4px solid var(--accent);
    transition: transform 0.3s ease;
}

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

.card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.card p {
    color: #64748b;