*{
    margin:0;
    padding: 0;
    box-sizing: border-box;
}


html, body{
    width: 100%;

}

html{
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary-color);
    color: var(--text-primary-color);
}

header.navbar{
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--gutter-lg);
    padding: var(--padding-lg) var(--padding-2xl);
    background-color: var(--bg-secondary-color);
    border-bottom: 1px solid var(--bg-active-color);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

header.navbar .nav-brand{
    display: flex;
    align-items: center;
    gap: var(--gutter-sm);
    font-weight: 700;
}

header.navbar .nav-brand i{
    font-size: 1.4rem;
}

header.navbar .nav-links{
    display: flex;
    align-items: center;
    gap: var(--gutter-lg);
}

header.navbar .nav-links a{
    text-decoration: none;
    color: var(--text-primary-color);
    font-weight: 600;
    transition: color 120ms ease;
}

header.navbar .nav-links a:hover{
    color: var(--bg-active-color);
}

header.navbar .nav-actions{
    display: flex;
    align-items: center;
}

.nav-actions .btn{
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.nav-ghost{
    background-color: transparent;
    color: var(--text-primary-color);
    border: 1px solid var(--bg-active-color);
}

main{
    width: 100%;
}

main section{
    width:100%;
    padding: var(--padding-2xl);
    display: flex;
    gap: var(--gutter-lg);
}

main section .top{
    display: flex;
    align-items: center;
    gap:var(--gutter-md);

}

main section .bottom{
    background-color: var(--bg-secondary-color);
    width: 100%;
    padding: var(--padding-2xl);
    aspect-ratio: 5/3;
    border-radius: var(--border-radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

main section .bottom .placeholder{
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.6;
    gap: var(--gutter-md);
}

main section .bottom .placeholder.hidden{
    display: none;
}


main section .bottom .placeholder i{
    font-size: 10rem;
}

main section .bottom .placeholder p{
    font-size: var(--font-size-lg);
}

.preview{
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.hidden{
    display: none !important;
}

.btn{
    padding:var(--padding-sm) var(--padding-lg);
    border: none;
    outline: none;
    cursor: pointer;
    background-color:var(--bg-active-color) ;
    border-radius: var(--border-radius-md);
    color: var(--text-active-color);
}

main section .left{
    display: flex;
    flex-direction: column;
    gap: var(--gutter-lg);
    width: 70%;
    align-items: center;
}

main section .right{
    width: 30%;
    background-color: var(--bg-secondary-color);
    padding: var(--padding-lg);
    border-radius:var(--border-radius-lg) ;
    display: flex;
    flex-direction: column;
    gap: var(--gutter-md);
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.06);
}


main section .right .filters{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--gutter-md);
    padding-right: 0;
}

main section .right .filters h2{
    margin-bottom: var(--margin-sm);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

main section .right .filter{
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--gutter-xs);
    padding: var(--padding-md);
    border-radius: var(--border-radius-md);
    background: linear-gradient(135deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
    border: 1px solid rgba(255,255,255,0.06);
    min-width: 0;
}

main section .right .filter p{
    margin: 0;
    font-weight: 600;
    color: var(--text-primary-color);
}

main section .right .filter input{
    width: 100%;
    outline: none;
    margin-top: var(--margin-sm);
    appearance: none;
    background: linear-gradient(90deg, var(--bg-active-color), var(--bg-active-color));
    height: 6px;
    border-radius: 3px;
    transition: box-shadow 120ms ease;
}

main section .right .filter input::-webkit-slider-runnable-track{
    background-color: var(--bg-active-color);   
    height: 3px;
    border-radius: 2px;
}

main section .right .filter input::-moz-range-track{
    background-color: var(--bg-active-color);   
    height: 3px;
}


main section .right .filter input::-webkit-slider-thumb{
    cursor: pointer;
    appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background-color: var(--bg-active-color);
    border: 2px solid rgba(255,255,255,0.6);
    margin: -8.5px;
    box-shadow: 0 6px 14px rgba(0,0,0,0.16);
}

main section .right .filter input:focus-visible{
    outline: none;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.12);
}


#reset-btn{
    background-color: var(--bg-reset-color);
    color: var(--text-primary-color);
}

#download-btn{
    background-color: var(--bg-success-color);
    color: var(--text-primary-color);
}