/* Modern Navigation Styles */
:root {
    --navbar-height: 70px;
}

/* Add padding to main content to prevent header overlap */
main {
    padding-top: var(--navbar-height);
    width: 100%;
    overflow-x: hidden;
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: var(--navbar-height);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-logo:hover {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

/* Site logo placed in navbar */
.site-logo {
    display: block;
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 6px 18px rgba(2,46,115,0.08);
}
.site-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-left: 6px;
}

.navbar-platform-tag {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 15px;
    box-shadow: 0 2px 8px rgba(0, 102, 255, 0.2);
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.navbar-menu ul {
    display: flex;
    gap: 25px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-menu a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1rem;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

.navbar-menu a:hover,
.navbar-menu a:active {
    color: var(--color-primary);
    background-color: rgba(0, 102, 255, 0.1);
}

/* Remove hover effects on touch devices */
@media (hover: none) {
    .navbar-menu a:hover {
        color: var(--color-text);
        background-color: transparent;
    }
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-menu a:hover::after {
    width: 80%;
}

.nav-button-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    padding: 8px 14px;
    border-radius: 999px; /* pill */
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 6px 18px rgba(2,46,115,0.08);
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
    text-decoration: none;
}

.nav-button-login::before {
    content: '👤';
    display: inline-block;
    transform: translateY(0);
    font-size: 1.05rem;
}

.nav-button-login:hover,
.nav-button-login:focus {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(2,46,115,0.12);
    opacity: 0.98;
}

.nav-button-login:focus-visible {
    outline: 3px solid rgba(0,102,255,0.18);
    outline-offset: 3px;
}

/* Mobile Menu Toggle */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1000;
}

.bar {
    width: 30px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .navbar {
        height: 60px;
        padding: 0;
    }

    .navbar-container {
        padding: 0 15px;
        height: 100%;
    }
    
    .menu-container {
        padding: 20px;
        height: calc(100vh - 60px);
        overflow-y: auto;
    }

    .site-logo {
        width: 36px;
        height: 36px;
    }

    .site-title {
        font-size: 1rem;
    }

    .navbar-platform-tag {
        display: none;
    }

    .navbar-toggle {
        display: flex;
        width: 44px;
        height: 44px;
        justify-content: center;
        align-items: center;
        background: transparent;
        border-radius: 8px;
        transition: background-color 0.3s;
    }

    .navbar-toggle:active {
        background-color: rgba(0, 0, 0, 0.05);
    }

    .navbar-menu {
        display: block;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        padding: 20px;
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .navbar-menu.is-active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .navbar-menu ul {
        flex-direction: column;
        gap: 8px;
        padding: 0;
        margin: 0;
    }

    .navbar-menu li {
        width: 100%;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .navbar-menu.is-active li {
        opacity: 1;
        transform: translateY(0);
    }

    .navbar-menu.is-active li:nth-child(1) { transition-delay: 0.05s; }
    .navbar-menu.is-active li:nth-child(2) { transition-delay: 0.1s; }
    .navbar-menu.is-active li:nth-child(3) { transition-delay: 0.15s; }
    .navbar-menu.is-active li:nth-child(4) { transition-delay: 0.2s; }
    .navbar-menu.is-active li:nth-child(5) { transition-delay: 0.25s; }
    .navbar-menu.is-active li:nth-child(6) { transition-delay: 0.3s; }

    .navbar-menu a {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 50px;
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--color-text);
        text-decoration: none;
        border-radius: 12px;
        transition: background-color 0.3s;
    }

    .navbar-menu a:active {
        background-color: rgba(0, 0, 0, 0.05);
    }

    .nav-button-login {
        margin-top: 16px;
        width: 100%;
        height: 50px;
        justify-content: center;
        font-size: 1.1rem;
    }

    /* Hamburger Animation */
    .navbar-toggle.is-active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .navbar-toggle.is-active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .navbar-toggle.is-active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}