.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.75rem 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: #0f172a !important;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.main-nav.nav-home {
    background: rgba(10, 14, 39, 0.85) !important;
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.main-nav.nav-home.scrolled {
    background: rgba(15, 23, 42, 0.97) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 4px 30px rgba(0,0,0,0.25);
    padding: 0.5rem 0;
}

.main-nav .navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.main-nav .navbar-brand .brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 2px 10px rgba(99,102,241,0.3);
}

.main-nav .nav-link,
.main-nav .navbar-nav .nav-link {
    color: #fff !important;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 8px 14px !important;
    border-radius: 8px;
    transition: all 0.25s ease;
    position: relative;
    letter-spacing: 0.01em;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active,
.main-nav .navbar-nav .nav-link:hover,
.main-nav .navbar-nav .nav-link.active {
    color: #fff !important;
    background: rgba(99,102,241,0.25);
}

.main-nav .nav-link i {
    margin-right: 6px;
    font-size: 0.85rem;
}

.main-nav .dropdown-menu {
    background: #1e293b;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 12px;
    padding: 8px;
    margin-top: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    min-width: 220px;
}

.main-nav .dropdown-item {
    color: #e2e8f0;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.main-nav .dropdown-item:hover {
    background: rgba(99,102,241,0.2);
    color: #fff;
}

.main-nav .dropdown-item.active {
    background: var(--primary);
    color: #fff;
}

.main-nav .dropdown-item i {
    width: 20px;
    text-align: center;
    margin-right: 10px;
    font-size: 0.85rem;
}

.main-nav .dropdown-divider {
    border-color: rgba(255,255,255,0.1);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 22px !important;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: #fff !important;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.25s ease;
    box-shadow: 0 2px 10px rgba(99,102,241,0.3);
    text-shadow: none;
}

.nav-cta:hover {
    background: linear-gradient(135deg, var(--primary-dark), #4338ca) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99,102,241,0.5);
}

.navbar-toggler {
    border: 1px solid rgba(255,255,255,0.2);
    padding: 6px 10px;
    border-radius: 8px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (min-width: 992px) {
    .main-nav .navbar-collapse {
        display: flex !important;
        flex-basis: auto;
    }
    .main-nav .navbar-toggler {
        display: none;
    }
    .main-nav .navbar-nav {
        flex-direction: row;
    }
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--gray-800);
        padding: 1rem;
        border-radius: 12px;
        margin-top: 1rem;
        border: 1px solid rgba(255,255,255,0.1);
        max-height: min(72vh, calc(100dvh - 5.5rem));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    .main-nav .navbar-nav .nav-link {
        padding: 12px 14px !important;
    }

    .main-nav .dropdown-menu {
        background: rgba(255,255,255,0.05);
        border: none;
        box-shadow: none;
        margin-top: 4px;
    }
}

@media (max-width: 575.98px) {
    .main-nav .navbar-brand {
        font-size: 1.2rem;
        gap: 8px;
    }

    .main-nav .navbar-brand .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .navbar-toggler {
        min-width: 44px;
        min-height: 44px;
    }
}

body {
    padding-top: clamp(70px, 12vw, 80px);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}
body.auth-body {
    padding-top: 0;
    padding-left: 0;
    padding-right: 0;
    background: #fff;
    overflow-x: hidden;
}