/* ==========================================================================
   Navbar
   Desktop (> 1280px): links in one row.
   Tablet / phone: hamburger button + dropdown panel under the bar.
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    width: calc(100% - 4rem);
    max-width: 1400px;
    margin: 1.25rem auto;
    padding: 0.9rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    transform: translateZ(0);
    will-change: transform;
    animation: navbarEntrance 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    transition: all 0.3s ease, transform 0.3s ease;
}

.navbar::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gold-border);
    opacity: 0.5;
    transform: scaleX(0.8);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar:hover::before {
    transform: scaleX(1);
    opacity: 1;
}

/* Brand */
.nav-brand {
    display: flex;
    align-items: center;
    color: var(--primary);
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 1px;
    text-decoration: none;
    white-space: nowrap;
}

.nav-brand i {
    margin-inline-end: 0.6rem;
    color: var(--primary);
}

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

/* Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.9rem;
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-link i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    color: var(--light);
}

.nav-link:hover i {
    transform: translateY(-2px);
    color: var(--primary);
}

/* Ripple background on hover */
.nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.nav-link:hover::before {
    width: 300px;
    height: 300px;
}

/* Underline on hover */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.3s ease;
}

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

/* "Mein Termin" is set apart from the section links */
.nav-link-manage {
    margin-inline-start: 0.5rem;
    border: 1px solid var(--glass-border);
}

/* "Termin buchen" button inside the navbar */
.nav-cta {
    margin-inline-start: 0.75rem;
    padding: 0.7rem 1.4rem;
    font-size: 1rem;
    white-space: nowrap;
}

/* Hamburger toggle */
.menu-toggle {
    display: none;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    margin: 5px 0;
    background: var(--primary);
    border-radius: 3px;
    box-shadow: var(--gold-glow);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.menu-toggle:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

@keyframes navbarEntrance {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ---------- Tablet & phone: dropdown menu ---------- */

@media (max-width: 1280px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        max-height: calc(100vh - 7rem);
        overflow-y: auto;
        padding: 0.75rem;
        background: var(--glass-bg);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid var(--glass-border);
        border-radius: 16px;
        box-shadow: var(--luxury-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-link {
        padding: 0.95rem 1rem;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-link i {
        width: 1.4rem;
        text-align: center;
    }

    .nav-link-manage {
        margin: 0;
        border: none;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-cta {
        justify-content: center;
        margin: 0.9rem 0 0.25rem;
    }
}

@media (max-width: 600px) {
    .navbar {
        width: calc(100% - 1.5rem);
        margin: 0.75rem auto;
        padding: 0.7rem 1rem;
        border-radius: 16px;
    }

    .nav-brand {
        font-size: 1.3rem;
    }
}