html {
    scroll-behavior: smooth;
}

.gp-sidenav-layout {
    max-width: 1320px;
    display: flex;
    gap: 2rem;
    margin: 0 auto;
    padding: 20px 0;
}

.gp-sidenav-container {
    flex: 0 0 220px;
    position: sticky;
    top: 100px;
    align-self: flex-start;
    height: fit-content;
}

.gp-sidenav {
    padding: 1rem 0;
    font-family: sans-serif;
}

.gp-sidenav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    /* border-left: 3px solid #ccc; */
}

.gp-sidenav ul li {
    margin: 0;
}

.gp-sidenav ul li a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: #444;
    position: relative;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.gp-sidenav ul li a:hover {
    background: #f9f9f9;
}

.gp-sidenav ul li a.active {
    border-left: 3px solid #f59e0b; /* amber-500 */
    color: #d97706;
    font-weight: bold;
}

.gp-content-area {
    flex: 1;
    min-width: 0;
}

/* Hide arrows on desktop */
.gp-nav-arrows {
    display: none;
}

.gp-sidenav-wrapper {
    display: block;
}

@media (max-width: 768px) {
    .gp-sidenav-layout {
        flex-direction: column;
        gap: 1rem;
    }

    .gp-sidenav-container {
        flex: none;
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
        background: white;
        z-index: 999;
        border-bottom: 1px solid #eee;
        padding: 0.5rem 0;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        width: 100%;
        box-sizing: border-box;
    }

    .gp-nav-arrows {
        display: flex;
        flex: 0 0 auto;
        gap: 0.25rem;
    }

    .gp-nav-arrow {
        background: #f3f4f6;
        border: none;
        padding: 0.5rem 0.75rem;
        cursor: pointer;
        font-size: 1.2rem;
        border-radius: 0.375rem;
        transition: all 0.2s;
        min-width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .gp-nav-arrow:hover {
        background: #e5e7eb;
    }

    .gp-nav-arrow:active {
        transform: scale(0.95);
    }

    .gp-nav-arrow:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }

    .gp-sidenav-wrapper {
        flex: 1;
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none;  /* IE 10+ */
        scroll-behavior: smooth;
        min-width: 0;
        width: 100%;
        box-sizing: border-box;
    }

    .gp-sidenav-wrapper::-webkit-scrollbar {
        display: none;
    }

    .gp-sidenav {
        position: static;
        top: auto;
        padding: 0;
        overflow: visible;
        width: 100%;
    }

    .gp-sidenav ul {
        display: flex;
        flex-direction: row;
        gap: 0.5rem;
        padding: 0 0.5rem;
        margin: 0;
        border-left: none;
        white-space: nowrap;
        /* Remove min-width: max-content to prevent overflow */
        width: max-content;
        box-sizing: border-box;
    }

    .gp-sidenav ul li {
        flex: 0 0 auto;
    }

    .gp-sidenav ul li a {
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
        border-radius: 5px;
        padding: 0.75rem 1rem;
        display: block;
        box-sizing: border-box;
    }

    .gp-sidenav ul li a.active {
        /* background-color: #fef3c7; */
        border-left: 3px solid #f59e0b;
        /* border-left: none; */
        color: #d97706;
    }

    .gp-sidenav ul li a:hover {
        background: #f9f9f9;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .gp-sidenav-layout {
        padding: 1rem 0.5rem;
    }
    
    .gp-sidenav-container {
        padding: 0.5rem;
        margin: 0 -0.5rem;
        width: calc(100% + 1rem);
    }
    
    .gp-sidenav ul {
        padding: 0 0.25rem;
        gap: 0.25rem;
    }
    
    .gp-sidenav ul li a {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .gp-nav-arrow { 
        color: #000;
        padding: 0.4rem 0.6rem;
        font-size: 1rem;
        min-width: 36px;
        height: 36px;
    }
}