body {
    font-family: 'Inter';
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

:focus-visible {
    outline: 3px solid var(--bs-primary);
    outline-offset: 2px;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.nav-link {
    color: #555 !important;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--bs-primary) !important;
}

#hero {
    background: linear-gradient(135deg, #007bff 0%, #6610f2 100%); /* Blue to Purple Gradient */
    min-height: 85vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 6rem; /* Adjust for fixed header */
    padding-bottom: 4rem;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.9) 0%, rgba(102, 16, 242, 0.9) 100%);
    z-index: 0;
}

#hero .container {
    z-index: 1;
}

#hero h1 {
    font-size: 3.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#hero p {
    font-size: 1.25rem;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.btn-primary {
    background-color: var(--bs-teal);
    border-color: var(--bs-teal);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary:hover {
    background-color: var(--bs-info);
    border-color: var(--bs-info);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.btn-primary.shadow-lg-hover:hover {
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.4) !important;
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--bs-white) !important;
}

.hero-img {
    border-radius: 1rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    max-width: 100%;
    height: auto;
}

#features, #bonus-section {
    background-color: var(--bs-white);
}

.feature-card, .bonus-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 0.75rem;
}

.feature-card:hover, .bonus-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1) !important;
}

.feature-icon, .bonus-icon {
    font-size: 2.5rem;
    color: var(--bs-primary);
}

.bonus-card .bi-moon-stars {
    color: var(--bs-primary);
}
.bonus-card .bi-battery-charging {
    color: var(--bs-success);
}
.bonus-card .bi-heart-pulse {
    color: var(--bs-info);
}

#offer {
    background-color: var(--bs-primary);
    background: linear-gradient(45deg, #007bff 0%, #28a745 100%); /* Blue to Green Gradient */
    padding: 6rem 0;
}

#cta-bottom {
    background-color: #212529;
    padding: 6rem 0;
}

.btn-warning {
    background-color: var(--bs-warning);
    border-color: var(--bs-warning);
    color: var(--bs-dark);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    background-color: var(--bs-orange);
    border-color: var(--bs-orange);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 193, 7, 0.4);
}

.shadow-lg-hover:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2) !important;
}

@media (max-width: 991.98px) {
    #hero {
        min-height: 100vh;
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    #hero h1 {
        font-size: 2.8rem;
    }
    #hero p {
        font-size: 1.1rem;
    }
    .hero-img {
        margin-top: 2rem;
    }
    .navbar-collapse {
        background-color: rgba(255, 255, 255, 0.98);
        padding: 1rem;
        border-radius: 0.5rem;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }
    .navbar-nav .nav-link {
        padding: 0.5rem 1rem;
        text-align: center;
    }
}