/*
 * Lexi AI - Verbesserte Navigation mit Dropdown-Menüs
 */

.nav-wrapper {
    max-width: 1200px;
    margin: 0 auto 20px auto;
    position: relative;
}

.nav-bar {
    background: var(--card-bg);
    padding: 15px 25px;
    border-radius: var(--radius-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: relative;
}

/* Brand */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition-normal);
    z-index: 102;
}

.nav-brand:hover {
    color: var(--primary-color);
}

.nav-brand .logo {
    font-size: 24px;
}

/* Hamburger Menu (Mobile) */
.hamburger-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 102;
}

.hamburger-menu span {
    width: 24px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: var(--transition-normal);
}

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

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

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

/* Navigation Links Container */
.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: nowrap;
}

/* Navigation Groups */
.nav-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

.nav-group.primary {
    padding-right: 16px;
    border-right: 1px solid var(--border-color);
}

.nav-group.secondary {
    padding-left: 16px;
    border-left: 1px solid var(--border-color);
}

/* Navigation Links */
.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    cursor: pointer;
}

.nav-link:hover {
    background: var(--section-bg);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.nav-link.primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    font-weight: 600;
    padding: 10px 20px;
}

.nav-link.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.3);
}

.nav-link.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.nav-link:active {
    transform: translateY(0);
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    color: var(--text-color);
    background: var(--section-bg);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.nav-dropdown-toggle:hover {
    background: var(--input-bg);
    border-color: var(--primary-color);
}

.nav-dropdown-toggle .dropdown-icon {
    font-size: 10px;
    transition: transform var(--transition-normal);
}

.nav-dropdown.open .dropdown-icon {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 100;
    padding: 8px;
}

.nav-dropdown.open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    font-size: 14px;
    white-space: nowrap;
}

.nav-dropdown-item:hover {
    background: var(--section-bg);
    color: var(--primary-color);
    transform: translateX(4px);
}

.nav-dropdown-item.active {
    background: var(--primary-color);
    color: white;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger-menu {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 20px;
        box-shadow: var(--shadow-lg);
        z-index: 101;
        gap: 12px;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-group {
        flex-direction: column;
        gap: 8px;
        padding: 0;
        border: none;
        width: 100%;
    }

    .nav-group.primary,
    .nav-group.secondary {
        border: none;
        padding: 0;
    }

    .nav-link {
        width: 100%;
        justify-content: flex-start;
    }

    .nav-dropdown {
        width: 100%;
    }

    .nav-dropdown-toggle {
        width: 100%;
        justify-content: space-between;
    }

    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        margin-top: 8px;
        padding-left: 16px;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal);
    }

    .nav-dropdown.open .nav-dropdown-menu {
        max-height: 500px;
    }
}

@media (max-width: 480px) {
    .nav-bar {
        padding: 15px;
    }

    .nav-link {
        font-size: 13px;
    }

    .nav-dropdown-toggle,
    .nav-dropdown-item {
        font-size: 13px;
    }
}