/* ==========================================================================
   positioning.css
   Research/recruiter-facing repositioning styles.
   All new content blocks live here. Uses existing CSS custom properties so
   both light and dark themes work. Mobile-first responsive; no horizontal
   overflow at 390px.
   ========================================================================== */

/* ---- Hero static research identity line ----------------------------- */
.hero-research-tag {
    display: inline-block;
    margin: 0 0 0.5rem;
    padding: 0.35rem 0.9rem;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(var(--accent-primary-rgb), 0.14), rgba(var(--accent-secondary-rgb), 0.14));
    border: 1px solid var(--border-color);
    border-radius: 999px;
}

/* ---- Hero research CTA buttons --------------------------------------- */
.hero-buttons.hero-buttons-research {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-buttons-research .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ---- Research Statement (About) ------------------------------------- */
.research-statement {
    position: relative;
    max-width: 920px;
    margin: 0 auto 3rem;
    padding: 2rem 2.25rem;
    background: var(--card-bg, var(--bg-secondary));
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius, 16px);
    box-shadow: var(--shadow-medium, 0 8px 24px rgba(0, 0, 0, 0.08));
}

.research-statement-icon {
    position: absolute;
    top: -14px;
    left: 24px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    font-size: 0.85rem;
}

.research-statement-text {
    margin: 0;
    font-size: 1.08rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.research-statement-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ---- Research Interests (Research section) -------------------------- */
.research-interests {
    max-width: 960px;
    margin: 0 auto 2.5rem;
    text-align: center;
}

.research-interests-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.research-interests-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}

.research-interest-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--card-bg, var(--bg-secondary));
    border: 1px solid var(--border-color);
    border-radius: 999px;
    transition: var(--transition-fast, all 0.2s ease);
}

.research-interest-pill i {
    color: var(--primary-color);
}

.research-interest-pill:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ---- Research CTA link row ------------------------------------------ */
.research-cta-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.research-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.3rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 999px;
    transition: var(--transition-fast, all 0.2s ease);
}

.research-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium, 0 8px 20px rgba(var(--accent-primary-rgb), 0.3));
}

/* ---- Publication author list + contribution ------------------------- */
.publication-authors {
    margin: 0.25rem 0 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-family: var(--font-mono, monospace);
}

.publication-authors strong {
    color: var(--primary-color);
    font-weight: 700;
}

.publication-contribution {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.publication-contribution strong {
    color: var(--text-primary);
}

/* DOI links inside publication details */
.doi-info a {
    color: var(--primary-color);
    text-decoration: none;
    word-break: break-word;
}

.doi-info a:hover {
    text-decoration: underline;
}

/* ---- Footer link row ------------------------------------------------- */
.footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Accessibility — visible keyboard focus for the new interactive elements.
   The base site had no focus-visible indicator on buttons/links; these new
   research CTAs/links/pills must show focus for keyboard users. (Boss fix #8.)
   ========================================================================== */
.research-cta-btn:focus-visible,
.hero-buttons-research .btn:focus-visible,
.research-interest-pill:focus-visible,
.footer-links a:focus-visible,
.doi-info a:focus-visible {
    outline: 3px solid var(--primary-color, #6366f1);
    outline-offset: 3px;
    border-radius: 6px;
}

.research-cta-btn:focus-visible,
.hero-buttons-research .btn:focus-visible {
    border-radius: 999px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .research-statement {
        padding: 1.6rem 1.4rem;
        margin-bottom: 2.25rem;
    }

    .research-statement-text {
        font-size: 1rem;
        line-height: 1.7;
    }

    .research-interests-title {
        font-size: 1.2rem;
    }

    .hero-buttons.hero-buttons-research .btn {
        flex: 1 1 calc(50% - 0.75rem);
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-research-tag {
        font-size: 0.82rem;
        padding: 0.3rem 0.7rem;
    }

    .research-statement {
        padding: 1.4rem 1.1rem;
    }

    .research-statement-icon {
        left: 16px;
    }

    .research-interest-pill {
        font-size: 0.85rem;
        padding: 0.5rem 0.85rem;
    }

    .research-cta-btn {
        font-size: 0.88rem;
        padding: 0.6rem 1rem;
    }

    .hero-buttons.hero-buttons-research .btn {
        flex: 1 1 100%;
    }

    .publication-authors {
        font-size: 0.85rem;
    }
}