:root{
    --bg: #0b0c0f;      /* near-black */
    --panel: #0f1117;   /* subtle depth */
    --text: #e9eef6;    /* soft white */
    --muted: #9aa4b2;   /* muted grey */
    --hair: rgba(233,238,246,.12);
    --accent: rgba(233,238,246,.85);
    --maxw: 820px;
    --radius: 18px;
}

.wrap{
    min-height: 100%;
    display: flex;
    justify-content: center;
    padding: 56px 18px 28px;
}

.page{
    width: 100%;
    max-width: var(--maxw);
    display: flex;
    flex-direction: column;
    gap: 28px;
}

header{
    padding: 28px 24px 18px;
    background: rgba(255,255,255,.02);
    border: 1px solid var(--hair);
    border-radius: 18px;
    backdrop-filter: blur(6px);
}

.logo{
    font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    font-weight: 600;
    letter-spacing: 0.06em;
    font-size: 28px;
    line-height: 1.2;
    color: var(--accent);
}

.tagline{
    margin-top: 10px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.45;
}

main{
    padding: 22px 24px;
    background: rgba(255,255,255,.02);
    border: 1px solid var(--hair);
    border-radius: 18px;
}

h2{
    margin: 0 0 14px;
    font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 13px;
    color: var(--muted);
}

ul.books{
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.book{
    padding: 14px 14px;
    border: 1px solid rgba(233,238,246,.10);
    border-radius: 14px;
    background: linear-gradient(to bottom, rgba(255,255,255,.02), rgba(255,255,255,.01));
    transition: transform .12s ease, border-color .12s ease;
}

.book:hover{
    transform: translateY(-1px);
    border-color: rgba(233,238,246,.22);
}

.book-title{
    font-size: 20px;
    line-height: 1.2;
    margin: 0;
    color: var(--text);
}

.book-meta{
    margin-top: 6px;
    color: var(--muted);
    font-size: 16px;
}

.book-image{
    max-width:345px;
    margin-top: 10px;
    overflow: hidden;
    position:relative;
}

a.photo-hover{
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    text-decoration: none;

    transition:
            background-color 180ms ease,
            transform 180ms ease;

    will-change: background-color, transform;
}

a.photo-hover:hover{
    z-index: 90;
    background: rgba(10, 12, 16, 0.35);
    transform: translateY(-1px);
}


.aboutauthor{
    margin-top: auto;
    padding: 22px 24px;
    background: rgba(255,255,255,.02);
    border: 1px solid var(--hair);
    border-radius: 18px;
}

.author{
    color: var(--text);
    font-size: 18px;
    line-height: 1.55;
    margin: 0;
}

.signature{
    margin-top: 10px;
    color: var(--muted);
    font-size: 16px;
}

.copyright{
    padding: 16px 18px;
    background: var(--panel);
    border: 1px solid var(--hair);
    border-radius: var(--radius);
    color: var(--muted);
    font-size: 14px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.copyright .email{
    color: var(--muted);
    text-decoration: none;
    white-space: nowrap;
}

.copyright .email:hover{
    text-decoration: underline;
    text-underline-offset: 4px;
}

@media (max-width: 520px){
    .copyright{
        flex-direction: column;
        align-items: flex-start;
    }
}


/* =============================================================================
    RESPONSIVE - MEDIA QUERIES
============================================================================= */
@media (min-width: 760px){
    ul.books{ grid-template-columns: 1fr 1fr; }
    .logo{ font-size: 32px; }
}