.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
}

.section {
    padding: var(--section-padding);
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-mobile);
    }
}

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

.section-dark {
    background-color: var(--primary);
    color: var(--bg-white);
}

.section-dark h1, .section-dark h2, .section-dark h3 {
    color: var(--bg-white);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Flexbox Helpers */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; }
.flex-between { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.flex-col { display: flex; flex-direction: column; }

/* Gap Utilities */
.gap-8 { gap: 0.5rem; }
.gap-16 { gap: 1rem; }
.gap-24 { gap: 1.5rem; }
.gap-32 { gap: 2rem; }

/* Responsive Flex */
@media (max-width: 768px) {
    .flex-between-md {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 1.5rem;
    }
}

/* Navigation & Header Layout */
.navbar {
    height: 90px;
    background: white;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0; 
    z-index: 1000;
}

.logo {
    color: var(--primary);
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo:hover {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    background: transparent;
    cursor: pointer;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--primary);
    left: 0;
    transition: var(--transition);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.menu-toggle.active .hamburger {
    background: transparent;
}

.menu-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

@media (max-width: 991px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: 0.4s ease-in-out;
        z-index: 1000;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.25rem;
    }

    .nav-cta {
        margin-top: 1rem;
    }
}

.nav-link {
    font-weight: 500;
    color: var(--primary);
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

/* Footer Layout */
.main-footer {
    background: var(--primary);
    color: white;
    padding: 80px 0 40px;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 4rem;
}

.footer-bottom {
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: white !important;
    margin-bottom: 1rem;
    display: block;
}

.footer-col h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}