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

body {
    font-family: 'Open Sans Light', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}


/* Hero Section */
.hero {
    margin-top: 72px;
    min-height: 40vh;
    position: relative;
    background: linear-gradient(135deg, #006c8dc0 0%, #0058af7a 100%), url('../assets/contract3.jpeg');
    display: flex;
    align-items: center;
    padding: 80px 0;
}

.hero-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 60px;
    width: 100%;
}

.hero-content {
    max-width: 900px;
}

.hero-description {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.6;
    font-weight: 300;
}

/* Contracts Sections */
.contracts-section {
    padding: 100px 60px;
    background: var(--white);
}

.contracts-section.alt-bg {
    background: var(--bg-light);
}

.contracts-container {
    max-width: 1440px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.section-intro {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-dark);
    font-weight: 300;
    max-width: 900px;
}

/* Prime Contracts Grid */
.prime-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.prime-card {
    display: flex;
    flex-direction: column;
    border: 1px solid #e0e0e0;
    background: var(--white);
    transition: all 0.3s ease;
}

.prime-card:hover {
    border-color: var(--obx-mid-blue);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.prime-card-logo {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--bg-light);
    border-bottom: 1px solid #e0e0e0;
}

.alt-bg .prime-card-logo {
    background: var(--white);
}

.prime-card-logo img {
    max-width: 100%;
    max-height: 90px;
    object-fit: contain;
}

.prime-card-body {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.prime-card-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 12px;
}

.prime-tag {
    display: inline-block;
    align-self: flex-start;
    background: var(--obx-mid-blue);
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    padding: 4px 14px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.prime-domain {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-dark);
    font-weight: 300;
    margin-bottom: 20px;
}

.prime-link {
    margin-top: auto;
    align-self: flex-start;
    color: var(--obx-red);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}

.prime-link::after {
    content: " \2192";
    transition: margin 0.3s ease;
}

.prime-link:hover {
    color: var(--obx-mid-blue);
}

.prime-link:hover::after {
    margin-left: 4px;
}

/* Subcontracts Grid */
.sub-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.sub-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid #e0e0e0;
    background: var(--white);
    padding: 32px 24px;
    transition: all 0.3s ease;
}

.sub-card:hover {
    border-color: var(--obx-mid-blue);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.sub-card-logo {
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.sub-card-logo img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
}

.sub-name {
    font-size: 15px;
    line-height: 1.5;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.sub-card .prime-link {
    align-self: center;
}

/* Contact Block */
.contact-block {
    display: flex;
    gap: 80px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.contact-col h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.inline-link {
    color: var(--obx-light-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.inline-link:hover {
    color: var(--obx-mid-blue);
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 80px 60px 40px;
}

.footer-container {
    max-width: 1440px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
    font-size: 14px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--obx-light-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
}

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

/* Responsive */
@media (max-width: 968px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        align-items: stretch;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        max-height: 600px;
    }

    .nav-menu > li {
        border-bottom: 1px solid #e0e0e0;
    }

    .nav-menu > li > a {
        display: block;
        padding: 16px 24px;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        margin-top: 0;
        padding: 0;
        background: var(--bg-light);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .dropdown.active .dropdown-menu {
        max-height: 400px;
        display: block;
    }

    .prime-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sub-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 24px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-container {
        padding: 0 24px;
    }

    .hero-description {
        font-size: 18px;
    }

    .contracts-section {
        padding: 60px 24px;
    }

    .section-title {
        font-size: 36px;
    }

    .prime-grid,
    .sub-grid {
        grid-template-columns: 1fr;
    }

    .contact-block {
        flex-direction: column;
        gap: 32px;
    }

    .footer {
        padding: 60px 24px 40px;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease forwards;
}