/* ===== Navbar Styling ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-medium);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    min-height: 70px;
}

/* ===== Logo Styling ===== */
.nav-logo .logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
    transition: var(--transition-fast);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-main {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-dark);
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 1px;
}

.logo-link:hover .logo-icon {
    transform: rotate(360deg);
}

/* ===== Navigation Menu ===== */
.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
    transition: var(--transition-fast);
}

.nav-icon {
    font-size: 0.9rem;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
    opacity: 1;
    transform: scale(1.1);
}

/* ===== CTA Buttons ===== */
.nav-cta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: var(--white);
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
    background: linear-gradient(135deg, #128c7e, #25d366);
}

.btn-whatsapp i {
    font-size: 1.1rem;
}

/* ===== Mobile Toggle ===== */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    width: 30px;
    height: 20px;
    justify-content: space-between;
    z-index: 1001;
}

.toggle-line {
    width: 100%;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition-fast);
}

.nav-toggle.active .toggle-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active .toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .toggle-line:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

/* ===== Mobile Menu ===== */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
    transition: var(--transition-fast);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background: var(--white);
    z-index: 1000;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-heavy);
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.mobile-close:hover {
    background: var(--light-gray);
    color: var(--primary-color);
}

.mobile-menu-content {
    padding: 2rem;
}

.mobile-nav-list {
    list-style: none;
    margin-bottom: 2rem;
}

.mobile-nav-item {
    margin-bottom: 1rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.mobile-nav-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.mobile-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.mobile-btn {
    width: 100%;
    justify-content: center;
    gap: 10px;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-fast);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* ===== Main Content Padding ===== */
.main-content {
    padding-top: 90px;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .nav-cta .btn span {
        display: none;
    }
    
    .nav-cta .btn {
        padding: 10px 15px;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-content {
        padding: 0.8rem 0;
    }

    .logo-main {
        font-size: 1.1rem;
    }

    .logo-sub {
        font-size: 0.65rem;
    }

    .main-content {
        padding-top: 80px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .mobile-menu {
        width: 100%;
    }

    .mobile-menu-header,
    .mobile-menu-content {
        padding: 1.5rem;
    }

    .logo-icon {
        font-size: 1.8rem;
    }

    .logo-main {
        font-size: 1rem;
    }

    .logo-sub {
        font-size: 0.6rem;
    }
}

/* ===== Scroll Animations ===== */
@media (prefers-reduced-motion: no-preference) {
    .navbar {
        animation: slideDown 0.6s ease;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ===== Menu Item Hover Effects ===== */
.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    transition: var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

/* ===== Mobile Menu Animation ===== */
.mobile-nav-item {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transform: translateY(20px);
}

.mobile-menu.active .mobile-nav-item:nth-child(1) { animation-delay: 0.1s; }
.mobile-menu.active .mobile-nav-item:nth-child(2) { animation-delay: 0.2s; }
.mobile-menu.active .mobile-nav-item:nth-child(3) { animation-delay: 0.3s; }
.mobile-menu.active .mobile-nav-item:nth-child(4) { animation-delay: 0.4s; }
.mobile-menu.active .mobile-nav-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}