/* Navigation Styles */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar-transparent {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar-transparent.scrolled,
.navbar-transparent.mobile-menu-open {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 95%;
    margin: 0 auto;
    padding: 20px 20px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 3rem;
}

/* Logo Styling */
.logo-link {
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-image {
    height: 70px;
    width: auto;
    object-fit: contain;
}

.nav-cech-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    margin-left: 15px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #333;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

/* Transparent navbar logo - white text */
.navbar-transparent .logo-text {
    color: white;
}

/* Scrolled navbar logo - black text */
.navbar-transparent.scrolled .logo-text {
    color: #333;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    margin-left: 0;
}

.nav-cta {
    margin-left: auto;
}

.nav-cta-btn {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.navbar-transparent.scrolled .nav-cta-btn {
    background: rgba(128, 128, 128, 0.2);
    color: #333;
    border: 1px solid rgba(128, 128, 128, 0.3);
}

.nav-cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.navbar-transparent .nav-link {
    color: white;
}

.navbar-transparent.scrolled .nav-link {
    color: #333;
}

.nav-link {
    position: relative;
    text-decoration: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -3px;
    left: 0;
    background-color: currentColor;
    transition: width 0.3s ease;
}

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

.nav-link.active {
    background: #333333;
    color: white !important;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-link.active::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
    border-radius: 2px;
}

.navbar-transparent .hamburger span {
    background: white;
}

.navbar-transparent.scrolled .hamburger span {
    background: #333;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-6px, -6px);
}

/* Mobile Sidebar - Fancy Design */
.mobile-sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, rgba(51, 51, 51, 0.98) 0%, rgba(34, 34, 34, 0.98) 100%);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 12px 0 30px;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%);
    opacity: 0;
}

.mobile-sidebar.active {
    left: 0;
    transform: translateX(0);
    opacity: 1;
}

.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 40px 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mobile-nav-link {
    position: relative;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 18px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 20px 20px 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
    display: block;
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInFromLeft 0.6s ease forwards;
}

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

@keyframes slideInFromLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.mobile-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #666666, #999999);
    transition: width 0.4s ease;
}

.mobile-nav-link:hover::before,
.mobile-nav-link.active::before {
    width: 30px;
}

.mobile-nav-link:hover {
    color: white;
    padding-left: 40px;
    transform: translateX(5px);
}

.mobile-nav-link.active {
    color: #999999;
    font-weight: 600;
    padding-left: 40px;
}

.mobile-cta {
    margin-top: 50px;
    text-align: center;
    padding: 0;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInFromBottom 0.6s ease 0.6s forwards;
}

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

.mobile-cta-btn {
    position: relative;
    display: inline-block;
    padding: 16px 40px;
    background: linear-gradient(135deg, #666666 0%, #555555 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.4s ease;
    overflow: hidden;
    border: 2px solid transparent;
}

.mobile-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.mobile-cta-btn:hover::before {
    left: 100%;
}

.mobile-cta-btn:hover {
    background: linear-gradient(135deg, #777777 0%, #666666 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 102, 102, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Mobile Sidebar Header */
.mobile-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    margin-bottom: 0;
}

.mobile-logo {
    flex: 1;
}

.mobile-logo-link {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: white;
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.3s ease;
}

.mobile-logo-link:hover {
    opacity: 0.8;
}

/* Close button */
.mobile-close-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 24px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.mobile-close-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

/* Mobile Overlay - Enhanced */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.8) 100%);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 15px 20px;
        gap: 2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
        margin-left: auto;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .logo-image {
        height: 55px;
    }
    
    .nav-cech-logo {
        height: 35px;
        margin-left: 10px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 12px 15px;
    }
    
    .logo-img {
        height: 35px;
    }
    
    .logo-image {
        height: 50px;
    }
    
    .nav-cech-logo {
        height: 30px;
        margin-left: 8px;
    }
    
    .mobile-sidebar {
        width: 100vw;
        padding: 12px 25px 25px;
    }
    
    .mobile-sidebar-header {
        padding: 0;
    }
}