/**
 * Stylesheet: publications page
 * Usage: layouts/research/publications.html and content/research/publications.md
 * Variables: static/assets/css/variables.css
 */

 

/* ---------------------------------------------------------------------------
   Section visibility (controlled by publications.js)
--------------------------------------------------------------------------- */

.pub_section {
    display: none;
}

.pub_section--active {
    display: block;
}


/* ---------------------------------------------------------------------------
   Tab toggle buttons
--------------------------------------------------------------------------- */

.pub_toggle {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
    font-family: var(--dv-font);
    flex-wrap: wrap; /* wraps to a second line on very narrow screens */
}

.pub_toggle_btn {
    padding: 12px 24px;
    border: 1px solid var(--dv-navy);
    border-radius: 10px;
    background-color: var(--dv-navy);
    color: #FFFFFF;
    font-family: var(--dv-font);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.pub_toggle_btn:hover {
    background-color: #1a1a6e;
    border-color: #1a1a6e;
}

/* Active tab — highlighted with accent colour */
.pub_toggle_btn--active,
.pub_toggle_btn--active:hover {
    background-color: var(--dv-red);
    border-color: var(--dv-red);
    color: #FFFFFF;
}

.pub_toggle_btn:focus-visible {
    outline: 2px solid var(--dv-red);
    outline-offset: 2px;
}


/* ---------------------------------------------------------------------------
   Publications list — one card per line
--------------------------------------------------------------------------- */

.pub_grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 0;
    padding: 0;
}


/* ---------------------------------------------------------------------------
   Publication card
--------------------------------------------------------------------------- */

.pub_card {
    background-color: var(--dv-bg);
    border: 1px solid var(--dv-border);
    border-radius: 12px;
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: 0 2px 8px rgba(12, 12, 79, 0.06);
    font-family: var(--dv-font);
}

.pub_card:hover {
    box-shadow: 0 6px 20px rgba(12, 12, 79, 0.10);
    border-color: #9090a8;
}

/* Info block: title, authors, meta */
.pub_card_infos {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pub_title {
    margin: 0;
    font-family: var(--dv-font);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--dv-navy);
    word-break: break-word;
}

.pub_authors {
    margin: 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--dv-navy);
    opacity: 0.75;
}

/* Year and journal — accent colour */
.pub_meta {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--dv-red);
    letter-spacing: 0.02em;
}

/* Abstract — visually separated from the info block */
.pub_abstract {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.65;
    color: var(--dv-navy);
    opacity: 0.75;
    padding-top: 10px;
    border-top: 1px solid #9090a8;
}

/* "View on HAL" link button */
.pub_link {
    align-self: flex-start;
    margin-top: 4px;
    padding: 6px 14px;
    border: 1px solid var(--dv-navy);
    border-radius: 8px;
    background-color: transparent;
    color: var(--dv-navy);
    font-family: var(--dv-font);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none !important;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.pub_link:hover {
    background-color: var(--dv-red);
    border-color: var(--dv-red);
    color: #FFFFFF;
}

.pub_link:focus:not(:focus-visible) {
    outline: none;
}
.pub_link:focus-visible {
    outline: 2px solid var(--dv-red);
    outline-offset: 2px;
}


/* ---------------------------------------------------------------------------
   State messages
--------------------------------------------------------------------------- */

.pub_empty,
.pub_loading,
.pub_hal_placeholder {
    text-align: center;
    font-family: var(--dv-font);
    font-size: 0.95rem;
    color: var(--dv-navy);
    opacity: 0.6;
    padding: 40px 0;
}

/* Error message — visible accent colour */
.pub_error {
    text-align: center;
    font-family: var(--dv-font);
    font-size: 0.95rem;
    color: var(--dv-red);
    padding: 40px 0;
}


/* ---------------------------------------------------------------------------
   Year filter
--------------------------------------------------------------------------- */

.pub_filter {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.pub_filter_label {
    font-family: var(--dv-font);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--dv-navy);
    white-space: nowrap;
}

.pub_filter_select {
    padding: 8px 36px 8px 16px;
    border: 1px solid var(--dv-border);
    border-radius: 8px;
    background-color: var(--dv-bg);
    color: var(--dv-navy);
    font-family: var(--dv-font);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.2s ease;
    /* Custom chevron arrow — removes default browser styling */
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%230C0C4F' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.pub_filter_select:hover  { border-color: var(--dv-navy); }
.pub_filter_select:focus  { outline: none; border-color: var(--dv-navy); }
.pub_filter_select:disabled { opacity: 0.5; cursor: not-allowed; }


/* ---------------------------------------------------------------------------
   Responsive
--------------------------------------------------------------------------- */

@media (max-width: 480px) {
    .pub_toggle {
        flex-direction: column;
    }

    .pub_toggle_btn {
        width: 100%;
        text-align: center;
    }

    .pub_card {
        padding: 18px 16px;
    }
}