:root {
    --primary-color: #0056b3;
    /* Industrial Blue Accent */
    --primary-hover: #004494;
    --secondary-color: #1a202c;
    /* Slate Dark */
    --text-color: #4a5568;
    /* Slate Gray */
    --bg-light: #f7fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --transition: all 0.3s ease;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1,
h2,
h3,
h4 {
    color: var(--secondary-color);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ----------------------------------
   Header / Navbar
----------------------------------- */
header {
    background-color: var(--white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

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

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--secondary-color);
}

@media (max-width: 992px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        z-index: 1001; /* Must be high to overlay page content */
    }

    .nav-links.show {
        max-height: 450px;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 16px;
        border-top: 1px solid var(--border-color);
    }

    .nav-link.btn {
        width: auto;
        margin: 16px;
        display: inline-flex;
    }
}

/* ----------------------------------
   Global Buttons
----------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--white) !important;
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 86, 179, 0.2), 0 2px 4px -1px rgba(0, 86, 179, 0.1);
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 86, 179, 0.3), 0 4px 6px -2px rgba(0, 86, 179, 0.15);
    color: var(--white) !important;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: var(--primary-color);
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    cursor: pointer;
    text-align: center;
    margin-top: auto;
    align-self: flex-start;
}

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

/* ----------------------------------
   Page Header (Title banner)
----------------------------------- */
.page-header {
    background-color: #11141a;
    padding: 64px 0 48px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 16px;
    letter-spacing: -1px;
    color: #ffffff;
}

.page-header p {
    font-size: 1.125rem;
    color: #a0aec0;
    max-width: 700px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .page-header h1 { font-size: 2rem !important; }
    .page-header { padding: 40px 0 32px 0 !important; }
}