/* Island Navbar Styles */

:root {
    --island-nav-bg: rgba(255, 255, 255, 0.8);
    --island-nav-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --island-accent: #0071e3;
    --island-text: #1d1d1f;
    --island-hover-bg: rgba(0, 113, 227, 0.1);
    --island-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme {
    --island-nav-bg: rgba(29, 29, 31, 0.8);
    --island-nav-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --island-text: #f5f5f7;
    --island-hover-bg: rgba(255, 255, 255, 0.1);
}

/* Island Navigation Container */
.island-nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    transition: var(--island-transition);
}

.nav-container {
    background: var(--island-nav-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 50px;
    padding: 12px 24px;
    box-shadow: var(--island-nav-shadow);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--island-transition);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

body.dark-theme .nav-container {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.island-nav.scrolled .nav-container {
    padding: 8px 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* Logo */
.island-nav .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--island-accent);
    text-decoration: none;
    margin-right: 16px;
    transition: var(--island-transition);
    font-family: 'Poppins', sans-serif;
}

.island-nav .logo:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

/* Navigation Links */
.island-nav .nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.island-nav .nav-link {
    padding: 8px 16px;
    color: var(--island-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 24px;
    transition: var(--island-transition);
    position: relative;
    white-space: nowrap;
}

.island-nav .nav-link:hover {
    background: var(--island-hover-bg);
    color: var(--island-accent);
}

.island-nav .nav-link.active {
    background: var(--island-accent);
    color: white;
}

.island-nav .nav-link.active:hover {
    background: var(--island-accent);
    opacity: 0.9;
}

/* Theme Toggle Button */
.island-nav .theme-toggle {
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 8px;
    transition: var(--island-transition);
    color: var(--island-text);
}

.island-nav .theme-toggle:hover {
    background: var(--island-hover-bg);
    transform: rotate(20deg);
}

.island-nav .theme-toggle svg {
    width: 20px;
    height: 20px;
}

.island-nav .sun-icon { 
    display: block; 
}

.island-nav .moon-icon {
    display: none;
}

body.dark-theme .island-nav .sun-icon { 
    display: none; 
}

body.dark-theme .island-nav .moon-icon { 
    display: block; 
}

/* Mobile Menu Button */
.island-nav .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin-left: 8px;
    border-radius: 8px;
    transition: var(--island-transition);
}

.island-nav .mobile-menu-btn:hover {
    background: var(--island-hover-bg);
}

.island-nav .mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: var(--island-text);
    border-radius: 2px;
    transition: var(--island-transition);
}

.island-nav .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.island-nav .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.island-nav .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .island-nav .nav-links {
        position: fixed;
        top: 80px;
        left: 50%;
        transform: translateX(-50%);
        background: var(--island-nav-bg);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        flex-direction: column;
        padding: 20px;
        border-radius: 24px;
        box-shadow: var(--island-nav-shadow);
        opacity: 0;
        pointer-events: none;
        transition: var(--island-transition);
        min-width: 200px;
        border: 1px solid rgba(255, 255, 255, 0.18);
    }

    body.dark-theme .island-nav .nav-links {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .island-nav .nav-links.active {
        opacity: 1;
        pointer-events: all;
    }

    .island-nav .nav-link {
        width: 100%;
        text-align: center;
    }

    .island-nav .mobile-menu-btn {
        display: flex;
    }

    .nav-container {
        padding: 10px 16px;
    }

    .island-nav .logo {
        margin-right: auto;
    }
}

@media (max-width: 480px) {
    .island-nav {
        top: 10px;
        width: calc(100% - 20px);
    }

    .nav-container {
        width: 100%;
    }

    .island-nav .logo {
        font-size: 1.3rem;
    }
}

/* Animation for navbar entry */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.island-nav {
    animation: slideDown 0.5s ease-out;
}

/* Smooth transitions for all interactive elements */
.island-nav * {
    -webkit-tap-highlight-color: transparent;
}

/* Focus states for accessibility */
.island-nav .nav-link:focus,
.island-nav .theme-toggle:focus,
.island-nav .mobile-menu-btn:focus {
    outline: 2px solid var(--island-accent);
    outline-offset: 2px;
}

.island-nav .logo:focus {
    outline: 2px solid var(--island-accent);
    outline-offset: 4px;
    border-radius: 4px;
}