::-webkit-scrollbar {
    width: 4px;
    background: var(--button-back);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 20px;
}

::-webkit-scrollbar-button {
    display: none;
}

:root[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
}

:root[data-theme="light"] {
    --bg-primary: #FFF8F0;
    --bg-secondary: #FFEDE0;
    --text-primary: #000000;
    --text-secondary: rgba(0, 0, 0, 0.7);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 20px 80px;
    display: flex;
    border-bottom: 1px solid rgba(var(--main-color-rgb), 0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.3);
    z-index: 1000;
    font-family: 'medium', sans-serif;
    transition: background 0.3s ease, border-color 0.3s ease;
}

:root[data-theme="light"] header {
    background: rgba(255, 248, 240, 0.3);
}

header::before,
header::after {
    display: none;
}

header .open-ul {
    display: none;
}

header .logo-text {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary, white);
    font-size: 24px;
    font-weight: 600;
    transition: color 0.3s ease;
}

header .logo {
    display: flex;
    align-items: center;
    color: var(--text-primary, white);
    font-size: 24px;
    transition: color 0.3s ease;
}

header .logo-link {
    display: flex;
    align-items: center;
    margin-right: 10px;
    background: none !important;
    background-color: transparent !important;
}

header .logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
    background: none !important;
    background-color: transparent !important;
    background-image: none !important;
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
}

.header-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header-nav ul {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header-nav li {
    margin: 0;
}

.header-nav li a {
    color: var(--text-secondary, rgba(255, 255, 255, 0.6));
    font-weight: 500;
    font-size: 16px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease;
}

.header-nav li a:hover {
    color: var(--text-primary, rgba(255, 255, 255, 0.9));
}

.header-nav li a i {
    font-size: 18px;
}

header .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-icon-btn {
    background: none;
    border: none;
    color: var(--main-color);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-icon-btn:hover {
    color: var(--primary-dark);
}

.header-btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: 1px solid;
}

.header-btn-secondary {
    background: var(--button-back, rgba(16, 16, 16, 0.85));
    border-color: var(--border, rgba(255, 255, 255, 0.1));
    color: var(--text-primary, #ffffff);
    transition: all 0.4s ease;
}

.header-btn-secondary:hover {
    background: var(--button-back-hover, rgba(16, 16, 16, 0.95));
    border-color: var(--main-color, rgba(var(--main-color-rgb), 0.4));
    outline: 2px solid rgba(var(--main-color-rgb), 0.3);
    outline-offset: 2px;
    opacity: 0.8;
}

:root[data-theme="light"] .header-btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(var(--main-color-rgb), 0.3);
    color: var(--text-primary, #000000);
}

:root[data-theme="light"] .header-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(var(--main-color-rgb), 0.5);
    outline: 2px solid rgba(var(--main-color-rgb), 0.3);
    outline-offset: 2px;
}

.header-btn-primary {
    background: var(--main-color, var(--main-color));
    border-color: var(--main-color, var(--primary-light));
    color: var(--text-primary, #ffffff);
    transition: all 0.4s ease;
}

.header-btn-primary:hover {
    background: var(--main-color-hover, var(--primary-dark));
    outline: 2px solid rgba(var(--main-color-rgb), 0.5);
    outline-offset: 2px;
    opacity: 0.8;
}

:root[data-theme="light"] .header-btn-primary {
    color: var(--text-primary, #000000);
}


.mobile-buttons {
    display: none;
}


@media (max-width: 1400px) {
    header {
        padding: 20px 150px;
    }
}

@media (max-width: 1180px) {
    header {
        padding: 20px 100px;
    }
}

@media (max-width: 920px) {
    .header-nav {
        display: none;
    }

    header.menu-open {
        border-bottom: none;
        background: #090909;
    }

    header .open-ul {
        display: block;
        background-color: transparent;
        border: none;
        outline: none;
        cursor: pointer;
        color: rgba(255, 255, 255, 0.6);
        font-size: 24px;
    }

    .header-actions .header-icon-btn,
    .header-actions .header-btn {
        display: none;
    }

    .header-actions .open-ul {
        display: block;
    }
}

@media (max-width: 760px) {
    header {
        padding: 20px 30px;
    }
}

@media (max-width: 520px) {
    header {
        padding: 20px 20px;
    }
}

@media (max-width: 450px) {
    header .logo-text {
        font-size: 20px;
    }
}