/* HEADER */
.header {
    position: sticky;
    top: 0;
    z-index: 500;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-inner {
    width: 100%;
    max-width: 1200px;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: -1px;
    text-decoration: none;
}

.tab-nav {
    display: flex;
    gap: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s;
    text-decoration: none;
}

.tab-btn:hover {
    color: #fff;
}

.tab-btn.active {
    color: #fff;
    border-bottom: 2px solid var(--accent);
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    .logo {
        font-size: 1.6rem;
    }

    .tab-nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem 1.25rem;
    }

    .tab-btn {
        font-size: 0.95rem;
    }

    .dropdown-content {
        right: auto;
        left: 50%;
        transform: translateX(-50%);
    }
}

/* DROPDOWN MENU */
.user-menu {
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    margin-bottom: -1rem;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--surface);
    min-width: 200px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    z-index: 1000;
    padding: 0.5rem 0;
    margin-top: -0.5rem;
    backdrop-filter: blur(20px);
}

.dropdown-content a {
    color: var(--text-dim);
    padding: 0.75rem 1.25rem;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.dropdown-content a:hover {
    background: var(--glass);
    color: #fff;
}

.dropdown-content .menu-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 0.4rem 0;
}

.user-menu:hover .dropdown-content,
.dropdown-content.show {
    display: block;
}

@media (max-width: 768px) {
    .user-menu:hover .dropdown-content {
        display: none;
    }

    .dropdown-content.show {
        display: block !important;
    }
}