.header {
    /*display: flex;*/
    /*justify-content: space-between;*/
    /*align-items: center;*/
    /*padding: 20px 30px;*/
    /*background: rgba(15, 20, 40, 0.6);*/
    /*backdrop-filter: blur(20px);*/
    /*border: 1px solid rgba(0, 212, 255, 0.2);*/
    /*border-radius: 20px;*/
    /*margin-bottom: 30px;*/
    /*box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);*/

    /*background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);*/
    /*padding: 20px 30px;*/
    /*display: flex;*/
    /*justify-content: space-between;*/
    /*align-items: center;*/
    /*box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);*/
    /*border-radius: 20px;*/
    /*border: 1px solid rgba(0, 212, 255, 0.2);*/
    /*margin-bottom: 30px;*/
    /*position: sticky;*/
    /*top: 0;*/
    /*z-index: 1000;*/
    /*backdrop-filter: blur(10px);*/

    background: var(--header-bg);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);*/
    box-shadow: 0 4px 20px var(--dark-text);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

.logo-text h1 {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 1px;
    background: linear-gradient(90deg, #00d4ff, #00ffaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 12px;
    color: #dae6ff;
    /*color: #8899bb;*/
    letter-spacing: 2px;
    text-transform: uppercase;
}

.header-actions {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.logo-text-item {
    margin: unset;
}

.sub-header {
    display: flex;
    justify-content: space-between;
    z-index: 2;
    align-items: center;
    border: 1px solid var(--border);
    padding: 1rem;
    margin: 1rem 1rem 0 1rem;
    background: var(--card-bg);
    border-radius: 20px;
}


@media (max-width: 768px) {
    .header, .sub-header {
        flex-direction: column;
        align-items: center;
        row-gap: 1rem;
        padding: 1rem;
    }
    .sub-header .page-title, .logo, .sub-header .page-title p {
        text-align: center;
    }

    .hide-mobile {
        display: none !important;
    }

    .logo {
        flex-direction: column;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: 1rem;
    }
}