/* ========================================
   Navigation
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--color-white);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.nav--scrolled {
    box-shadow: var(--shadow-md);
}

.nav__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Menu container (links + auth) */
.nav__menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

/* Logo */
.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 800;
    font-size: var(--font-size-lg);
    color: var(--color-text);
}

.nav__logo img {
    height: 40px;
    width: auto;
}

/* Links */
.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav__link {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width var(--transition-base);
}

.nav__link:hover {
    color: var(--color-text);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

.nav__link--active {
    color: var(--color-text);
}

/* Auth buttons in nav */
.nav__auth {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav__auth .btn {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-sm);
}

/* Hamburger */
.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1001;
}

.nav__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__hamburger--open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger--open span:nth-child(2) {
    opacity: 0;
}

.nav__hamburger--open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

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

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-slow);
        display: flex;
        gap: 0;
    }

    .nav__menu--open {
        right: 0;
    }

    .nav__links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        width: 100%;
    }

    .nav__link {
        width: 100%;
        padding: var(--space-md) 0;
        font-size: var(--font-size-base);
        border-bottom: 1px solid var(--color-border-light);
    }

    .nav__auth {
        flex-direction: column;
        width: 100%;
        margin-top: var(--space-lg);
        gap: var(--space-sm);
    }

    .nav__auth .btn {
        width: 100%;
        justify-content: center;
    }

    .nav__overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav__overlay--visible {
        display: block;
    }

    .nav__user-menu {
        width: 100%;
        margin-top: var(--space-lg);
    }

    .nav__user-toggle {
        width: 100%;
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--color-border-light);
    }

    .nav__user-dropdown {
        position: static;
        box-shadow: none;
        border: none;
        padding: 0;
        margin-top: 0;
    }

    .nav__user-dropdown-item {
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--color-border-light);
    }
}

/* ---- User Menu (authenticated) ---- */
.nav__user-menu {
    display: flex;
    align-items: center;
    position: relative;
}

.nav__user-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
    user-select: none;
}

.nav__user-toggle:hover {
    background: var(--color-bg);
}

.nav__user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-gold-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #1a1a1a;
    font-size: var(--font-size-xs);
}

.nav__user-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.nav__user-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    min-width: 200px;
    padding: var(--space-xs) 0;
    z-index: 1100;
}

.nav__user-dropdown--open {
    display: block;
}

.nav__user-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 16px;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: background var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}

.nav__user-dropdown-item:hover {
    background: var(--color-bg);
}

.nav__user-dropdown-item--logout {
    color: var(--color-error);
}

.nav__user-dropdown-item--logout:hover {
    background: rgba(220, 53, 69, 0.06);
}

.nav__user-dropdown-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: var(--space-xs) 0;
}