:root {
    --primary-color: #003366; /* Deep blue for executive feel */
    --secondary-color: #00509d;
    --accent-color: #ffcc00; /* Subtle gold for highlights */
    --text-color: #333;
    --light-text: #666;
    --bg-color: #fdfdfd;
    --white: #ffffff;
    --border-color: #eee;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --max-width: 1100px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--primary-color);
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-color);
}

ul {
    margin-bottom: 1.5rem;
    list-style-position: inside;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

nav ul {
    display: flex;
    list-style: none;
    margin-bottom: 0;
}

nav li {
    margin-left: 1.5rem;
}

nav a {
    font-weight: 500;
    font-size: 0.95rem;
}

nav a[aria-current="page"] {
    color: var(--primary-color);
    font-weight: 700;
    position: relative;
}

nav a[aria-current="page"]::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.4rem;
    height: 3px;
    border-radius: 999px;
    background: var(--accent-color);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(255, 204, 0, 0.45);
    outline-offset: 3px;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero.image-hero {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Video Hero Styles */
.hero.video-hero {
    position: relative;
    overflow: hidden;
    padding: 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: #1e222d;
    text-align: left;
}

.video-bg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to right, rgba(30, 34, 45, 0.9) 0%, rgba(30, 34, 45, 0.4) 50%, rgba(30, 34, 45, 0) 100%);
    z-index: 2;
}

.hero.video-hero .container {
    position: relative;
    z-index: 3;
    width: 100%;
}

.hero.video-hero h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    max-width: 700px;
    text-align: left;
}

.hero.video-hero p {
    font-size: 1.5rem;
    max-width: 600px;
    margin: 0 0 2.5rem 0;
    opacity: 0.9;
    text-align: left;
}

.hero.video-hero .cta-group {
    justify-content: flex-start;
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #e6b800;
    transform: translateY(-2px);
}

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

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

/* Proof Strip */
.proof-strip {
    background-color: #f4f7f9;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.proof-grid {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.proof-item {
    font-weight: bold;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
}

.proof-grid img {
    max-height: 40px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.proof-grid img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* Section Styling */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.25rem;
}

/* Grid Layouts */
.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 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

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

.card h3 {
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

footer a {
    color: #ddd;
}

footer a:hover {
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    color: #ccc;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    nav {
        display: none;
        width: 100%;
        position: absolute;
        top: var(--header-height);
        left: 0;
        background: var(--white);
        box-shadow: 0 5px 5px rgba(0,0,0,0.1);
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav li {
        margin: 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    nav a {
        display: block;
        padding: 1rem 2rem;
    }

    nav a[aria-current="page"]::after {
        left: 2rem;
        right: 2rem;
        bottom: 0.65rem;
    }
    
    .hero h1 {
        font-size: 2.25rem;
    }

    .hero.video-hero {
        text-align: center;
        min-height: auto;
    }
    
    .video-overlay {
        background-image: linear-gradient(to bottom, rgba(30, 34, 45, 0.8), rgba(30, 34, 45, 0.8));
    }
    
    .hero.video-hero h1,
    .hero.video-hero p {
        text-align: center;
        max-width: 100%;
    }

    .hero.video-hero p {
        font-size: 1.25rem;
    }
    
    .hero.video-hero .cta-group {
        justify-content: center;
    }
}

/* Utility classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-2 { margin-top: 2rem; }