.nav {
    position: sticky;
    top: 0;
    z-index: 40;
    height: 76px;
    background: var(--color-nav-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.nav__inner {
    position: relative;
    display: flex;
    align-items: center;
    height: 100%;
}

.nav__brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--color-primary);
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-decoration: none;
    flex-shrink: 0;
}

.nav__brand-logo {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    overflow: hidden;
}

.nav__brand-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.nav__brand-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-brand);
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
    left: 50%;
    translate: -100% 0;
}

@media (max-width: 992px) {
    .nav__links {
        margin: 0 auto;
        left: unset;
        translate: unset;
    }
}

.nav__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 9px 13px;
    color: var(--color-muted);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: color .18s ease, background .18s ease;
}

.nav__link:hover {
    color: var(--color-primary);
    background: var(--color-accent-band);
}

.nav__link.is-active {
    color: var(--color-primary);
    background: var(--color-accent-band);
}

.nav__link.is-active::after {
    content: "";
    position: absolute;
    left: 13px;
    right: 13px;
    bottom: 3px;
    height: 2px;
    border-radius: 999px;
    background: var(--color-brand);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.nav__login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    padding: var(--sp-3) var(--sp-6);
    font-size: 13.5px;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border-strong);
    background: transparent;
    color: var(--color-primary);
    transition: transform .12s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}

.nav__login:hover {
    border-color: var(--color-brand);
    color: var(--color-brand-strong);
}

.nav__register {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px 9px 16px;
    color: var(--color-on-primary);
    font-size: 13px;
    font-weight: 750;
    text-decoration: none;
    background: linear-gradient(135deg, var(--color-brand), var(--color-brand-strong));
    border: 1px solid color-mix(in srgb, var(--color-brand-strong) 70%, transparent);
    border-radius: 10px;
    box-shadow: 0 4px 12px -5px rgba(122, 107, 79, .5);
    transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.nav__register:hover {
    transform: translateY(-1px);
    filter: brightness(1.04);
    box-shadow: 0 7px 18px -6px rgba(122, 107, 79, .65);
}

.nav__register:active {
    transform: translateY(1px);
}

.nav__balance {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border: 1px solid color-mix(in srgb, var(--color-brand) 25%, transparent);
    border-radius: 999px;
    background: var(--color-brand-tint);
    color: var(--color-brand-strong);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.nav__balance::before {
    font-family: inherit;
    font-size: 7px;
}

.nav__action-btn {
    padding: 9px 17px !important;
    font-size: 13px !important;
}

.theme-toggle {
    position: relative;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: transparent;
    color: var(--color-primary);
    cursor: pointer;
    transition: background .18s ease, border-color .18s ease, transform .15s ease;
}

.theme-toggle:hover {
    background: var(--color-accent-band);
    border-color: var(--color-border-strong);
}

.theme-toggle:active {
    transform: scale(.94);
}

.theme-toggle .icon-sun {
    display: none;
}

.theme-toggle .icon-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

.nav__toggle {
    display: none;
}

.nav__burger {
    display: none;
    width: 40px;
    height: 40px;
    padding: 10px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: transparent;
    cursor: pointer;
    transition: background .18s ease;
}

.nav__burger:hover {
    background: var(--color-accent-band);
}

.nav__burger span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 0 auto;
    border-radius: 999px;
    background: var(--color-primary);
    transition: transform .25s ease, opacity .2s ease;
}

.nav__main-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav__mobile-auth {
    display: none;
}

@media (max-width: 760px) {
    .nav {
        height: 68px;
    }

    .nav__inner {
        padding-left: var(--sp-4);
        padding-right: var(--sp-4);
    }

    .nav__brand {
        font-size: 17px;
    }

    .nav__brand-logo {
        width: 26px;
        height: 26px;
    }

    .nav__links {
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        margin: 0;
        padding: 10px;
        gap: 12px;
        background: var(--color-nav-bg);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 18px 40px rgba(0, 0, 0, .08);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        pointer-events: none;
        transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
        translate: none;
    }

    .nav__toggle:checked~.nav__links {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav__main-links {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 2px;
        padding-bottom: 8px;
        border-bottom: 1px solid var(--color-border);
    }

    .nav__link {
        width: 100%;
        padding: 12px 14px;
        border-radius: 8px;
    }

    .nav__link.is-active::after {
        left: 14px;
        right: auto;
        bottom: 50%;
        width: 4px;
        height: 4px;
        transform: translateY(50%);
        border-radius: 50%;
    }

    .nav__mobile-auth {
        display: flex;
        flex-direction: column;
        gap: 6px;
        width: 100%;
    }

    .nav__mobile-balance {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 11px 13px;
        border-radius: 9px;
        background: var(--color-accent-band);
        border: 1px solid var(--color-border);
        font-size: 12px;
    }

    .nav__mobile-balance span {
        color: var(--color-muted);
        font-weight: 600;
    }

    .nav__mobile-balance strong {
        color: var(--color-brand-strong);
        font-family: var(--font-mono);
        font-size: 12px;
    }

    .nav__mobile-action {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        min-height: 42px;
        padding: 9px 14px;
        border-radius: 9px;
        font-size: 13px;
        font-weight: 700;
        text-decoration: none;
        box-sizing: border-box;
    }

    .nav__mobile-action--login {
        color: var(--color-primary);
        background: transparent;
        border: 1px solid var(--color-border);
    }

    .nav__mobile-action--register,
    .nav__mobile-action--primary {
        color: var(--color-on-primary);
        background: linear-gradient(135deg, var(--color-brand), var(--color-brand-strong));
        border: 1px solid color-mix(in srgb, var(--color-brand-strong) 70%, transparent);
    }

    .nav__actions {
        gap: 6px;
    }

    .nav__balance,
    .nav__action-btn,
    .nav__login,
    .nav__register {
        display: none;
    }

    .nav__burger {
        display: flex;
        width: 38px;
        height: 38px;
        padding: 9px;
        margin-left: 0;
        flex-shrink: 0;
    }

    .nav__burger span {
        width: 18px;
        height: 2px;
    }

    .nav__toggle:checked~.nav__actions .nav__burger span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav__toggle:checked~.nav__actions .nav__burger span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle:checked~.nav__actions .nav__burger span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .theme-toggle {
        width: 38px;
        height: 38px;
        flex-shrink: 0;
    }
}

@media (max-width: 380px) {
    .nav__inner {
        padding-left: 10px;
        padding-right: 10px;
    }

    .nav__brand {
        min-width: 0;
    }

    .nav__brand-logo {
        width: 24px;
        height: 24px;
    }

    .nav__brand-name {
        max-width: 115px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-size: 15px;
    }

    .nav__actions {
        gap: 4px;
    }

    .theme-toggle {
        width: 34px;
        height: 34px;
    }

    .nav__burger {
        width: 34px;
        height: 34px;
        padding: 8px;
    }

    .nav__burger span {
        width: 16px;
    }
}