/* Navigation Styles for Efba İlaç */

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.99) 0%, rgba(248, 250, 252, 0.98) 100%),
        radial-gradient(ellipse at top, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 9999;
    padding: var(--spacing-4) 0;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

nav.nav .nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-10);
    margin: 0;
    padding: 0;
    align-items: center;
}

nav.nav .nav-container .nav-menu .nav-link {
    color: var(--text-charcoal);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    letter-spacing: normal;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: block;
    padding: var(--spacing-2) var(--spacing-3);
    background: transparent;
    backdrop-filter: none;
    border: none;
    border-radius: 8px;
    overflow: hidden;
}

nav.nav .nav-container .nav-menu .nav-link:hover {
    color: var(--primary-blue);
    background: rgba(59, 130, 246, 0.08);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
}

nav.nav .nav-container .nav-menu .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
    border-radius: 1px;
}

nav.nav .nav-container .nav-menu .nav-link:hover::after {
    width: 80%;
}

/* Active and Click States */
nav.nav .nav-container .nav-menu .nav-link:active {
    transform: translateY(0);
    background: rgba(59, 130, 246, 0.12);
    box-shadow: 0 1px 4px rgba(59, 130, 246, 0.2);
    transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.nav .nav-container .nav-menu .nav-link:active::after {
    width: 90%;
    background: linear-gradient(90deg, var(--accent-teal), var(--primary-blue));
}

/* Add a subtle ripple effect */
nav.nav .nav-container .nav-menu .nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    z-index: -1;
}

nav.nav .nav-container .nav-menu .nav-link:hover::before {
    width: 100px;
    height: 100px;
    opacity: 1;
}

/* Professional Focus State for Desktop Links */
nav.nav .nav-container .nav-menu .nav-link:focus {
    outline: none;
    color: var(--primary-blue);
    background: rgba(59, 130, 246, 0.06);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    transform: translateY(-1px);
}

nav.nav .nav-container .nav-menu .nav-link:focus::after {
    width: 80%;
}

/* Active Link State */
nav.nav .nav-container .nav-menu .nav-link.active {
    color: var(--primary-blue);
    background: rgba(59, 130, 246, 0.08);
    font-weight: 600;
}

nav.nav .nav-container .nav-menu .nav-link.active::after {
    width: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
}

nav.nav .nav-container .nav-menu .nav-link.active::before {
    width: 120px;
    height: 120px;
    opacity: 0.6;
}

/* Professional Hamburger Menu */
.nav-toggle {
    display: none !important; /* Force hide by default on all screens */
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    padding: var(--spacing-3);
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 10002;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(13, 148, 136, 0.3);
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(13, 148, 136, 0.2);
}

.hamburger {
    width: 24px;
    height: 20px;
    position: relative;
    transform: rotate(0deg);
    transition: 0.5s ease-in-out;
    cursor: pointer;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2),
.hamburger span:nth-child(3) {
    top: 8px;
}

.hamburger span:nth-child(4) {
    top: 16px;
}

.hamburger.open span:nth-child(1) {
    top: 8px;
    width: 0;
    left: 50%;
}

.hamburger.open span:nth-child(2) {
    transform: rotate(45deg);
}

.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg);
}

.hamburger.open span:nth-child(4) {
    top: 8px;
    width: 0;
    left: 50%;
}

/* Professional Mobile Menu Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    right: -50%;
    width: 50%;
    height: 100vh;
    background: 
        linear-gradient(135deg, rgba(12, 74, 110, 0.98) 0%, rgba(13, 148, 136, 0.96) 50%, rgba(12, 74, 110, 0.98) 100%),
        radial-gradient(ellipse at top right, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(16, 185, 129, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at center, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    z-index: 10001;
    transition: right 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 120px;
    box-shadow: 
        -20px 0 60px rgba(0, 0, 0, 0.5),
        inset 2px 0 0 rgba(255, 255, 255, 0.1);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

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

/* Mobile Backdrop */
.nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(12, 74, 110, 0.6) 50%, rgba(0, 0, 0, 0.8) 100%),
        radial-gradient(ellipse at center, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 10000;
    cursor: pointer;
}

.nav-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.nav-overlay .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-8);
    list-style: none;
    margin: 0;
    padding: var(--spacing-4);
    position: relative;
    z-index: 2;
}

.nav-overlay .nav-link {
    color: var(--secondary-white);
    text-decoration: none;
    font-size: var(--font-size-2xl);
    font-weight: 600;
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: calc(50% - 60px);
    width: auto;
    text-align: center;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-overlay.active .nav-link {
    opacity: 1;
    transform: translateX(0);
}

/* Sophisticated Staggered Animation for Menu Items */
.nav-overlay.active .nav-link:nth-child(1) { 
    transition-delay: 0.1s; 
    animation: menuItemEnter 0.6s ease-out 0.1s both;
}
.nav-overlay.active .nav-link:nth-child(2) { 
    transition-delay: 0.2s; 
    animation: menuItemEnter 0.6s ease-out 0.2s both;
}
.nav-overlay.active .nav-link:nth-child(3) { 
    transition-delay: 0.3s; 
    animation: menuItemEnter 0.6s ease-out 0.3s both;
}
.nav-overlay.active .nav-link:nth-child(4) { 
    transition-delay: 0.4s; 
    animation: menuItemEnter 0.6s ease-out 0.4s both;
}

@keyframes menuItemEnter {
    0% {
        opacity: 0;
        transform: translateX(60px) translateY(20px) scale(0.8);
    }
    60% {
        transform: translateX(-8px) translateY(-2px) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateX(0) translateY(0) scale(1);
    }
}

.nav-overlay .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.2) 0%, rgba(59, 130, 246, 0.15) 100%);
    border-radius: 16px;
    opacity: 0;
    transition: all 0.4s ease;
    z-index: -1;
}

.nav-overlay .nav-link:hover {
    transform: translateY(-3px) scale(1.02);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.95);
}

.nav-overlay .nav-link:hover::after {
    opacity: 1;
}

/* Sophisticated Background Effects for Mobile Overlay */
.nav-overlay::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 140%;
    height: 140%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 90% 40%, rgba(139, 92, 246, 0.04) 0%, transparent 40%);
    animation: overlayFloat 25s ease-in-out infinite;
    z-index: 0;
}

.nav-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.02) 50%, transparent 70%),
        repeating-linear-gradient(90deg, transparent, transparent 60px, rgba(255, 255, 255, 0.02) 60px, rgba(255, 255, 255, 0.02) 120px);
    z-index: 1;
}

@keyframes overlayFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.4;
    }
    33% {
        transform: translate(20px, -15px) rotate(120deg);
        opacity: 0.6;
    }
    66% {
        transform: translate(-15px, 25px) rotate(240deg);
        opacity: 0.3;
    }
}

/* Professional Focus and Active States */
.nav-overlay .nav-link:focus {
    outline: none;
    transform: translateY(-3px) scale(1.02);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(13, 148, 136, 0.5);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        0 0 0 3px rgba(13, 148, 136, 0.3);
}

.nav-overlay .nav-link:active {
    transform: translateY(-1px) scale(0.98);
    background: rgba(255, 255, 255, 0.08);
}

/* Enhanced Typography for Mobile Menu */
.nav-overlay .nav-menu li:first-child .nav-link {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(13, 148, 136, 0.06) 100%);
    border-color: rgba(13, 148, 136, 0.2);
}

.nav-overlay .nav-menu li:first-child .nav-link:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(13, 148, 136, 0.1) 100%);
}

/* Close Button for Mobile Overlay */
.nav-overlay .close-btn {
    position: absolute;
    top: var(--spacing-5);
    right: var(--spacing-5);
    width: 50px;
    height: 50px;
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%),
        radial-gradient(circle at center, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 10003;
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.nav-overlay .close-btn:hover {
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.15) 100%),
        radial-gradient(circle at center, rgba(13, 148, 136, 0.15) 0%, transparent 70%);
    transform: scale(1.15) rotate(90deg);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 
        0 12px 35px rgba(0, 0, 0, 0.3),
        0 0 0 2px rgba(13, 148, 136, 0.3),
        inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

.nav-overlay .close-btn::before,
.nav-overlay .close-btn::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 3px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, rgba(255, 255, 255, 0.9) 100%);
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.nav-overlay .close-btn::before {
    transform: rotate(45deg);
}

.nav-overlay .close-btn::after {
    transform: rotate(-45deg);
}

/* Professional Focus States for Buttons */
.nav-toggle:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(13, 148, 136, 0.5);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.15),
        0 0 0 3px rgba(13, 148, 136, 0.3);
}

.nav-overlay .close-btn:focus {
    outline: none;
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 12px 35px rgba(0, 0, 0, 0.3),
        0 0 0 3px rgba(255, 255, 255, 0.4),
        inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

/* Enhanced Hamburger Animation */
.nav-toggle:hover .hamburger span {
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--primary-blue) 100%);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Desktop First - Ensure menu is always visible on all desktop screens */
@media (min-width: 1024px) {
    nav.nav .nav-container .nav-menu {
        display: flex !important;
    }
    
    nav.nav .nav-container .nav-toggle {
        display: none !important;
    }
}

/* Responsive Design - Tablet & Mobile */
@media (max-width: 1023px) {
    nav.nav .nav-container .nav-menu {
        display: none !important;
    }
    
    nav.nav .nav-container .nav-toggle {
        display: block !important;
    }
    
    .nav-overlay {
        width: 50%;
        right: -50%;
    }
}

/* Medium screens - tablets */
@media (max-width: 768px) {
    .nav-overlay {
        width: 50%;
        right: -50%;
    }
    
    .nav-overlay .nav-link {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-2);
        max-width: calc(50% - 50px);
    }
}

/* Small screens - mobile */
@media (max-width: 576px) {
    .nav-overlay {
        width: 50%;
        right: -50%;
    }
    
    .nav-overlay .nav-link {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-3);
        max-width: calc(50% - 40px);
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .nav-overlay .close-btn {
        width: 40px;
        height: 40px;
        top: var(--spacing-4);
        right: var(--spacing-4);
    }
    
    .nav-overlay .close-btn::before,
    .nav-overlay .close-btn::after {
        width: 18px;
    }
}

/* Professional Scroll-Based Effects */
.nav.scrolled {
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.99) 0%, rgba(248, 250, 252, 0.98) 100%),
        radial-gradient(ellipse at top, rgba(12, 74, 110, 0.05) 0%, transparent 50%);
    box-shadow: 
        0 4px 30px rgba(0, 0, 0, 0.12),
        0 1px 0 rgba(255, 255, 255, 0.6);
    border-bottom-color: rgba(12, 74, 110, 0.1);
}

/* Logo Hover Enhancement */
.nav-logo:hover {
    transform: translateY(-1px) scale(1.02);
    filter: drop-shadow(0 4px 12px rgba(12, 74, 110, 0.3));
    transition: all 0.3s ease;
}

.nav-logo:focus {
    outline: none;
    transform: translateY(-1px) scale(1.02);
    filter: drop-shadow(0 4px 12px rgba(12, 74, 110, 0.5));
    border-radius: 8px;
    box-shadow: 0 0 0 2px rgba(12, 74, 110, 0.3);
}

/* Enhanced Active Link State */
nav.nav .nav-container .nav-menu .nav-link.active {
    color: var(--accent-teal);
    font-weight: 600;
}

nav.nav .nav-container .nav-menu .nav-link.active::after {
    width: 100%;
    background: linear-gradient(90deg, var(--accent-teal), var(--primary-blue));
}

/* Clean Desktop Menu - Remove Extra Styling */

/* Clean Animation */
nav.nav .nav-container .nav-menu {
    animation: none;
}