/* Research portal main page — complements css/aevon-shell.css */

.research-hero {
    background: linear-gradient(145deg, var(--bg-2) 0%, var(--bg-3) 50%, #0f160a 100%);
    border-bottom: 1px solid var(--border);
    color: var(--text);
    padding: 5rem 0 4.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.research-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, black 20%, transparent 75%);
    opacity: 0.35;
    pointer-events: none;
}

.research-hero .inner {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
}

.research-hero-kicker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1rem 1.5rem;
    margin-bottom: 1.75rem;
    font-size: 0.78rem;
}

.research-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
}

.research-hero-tag::before {
    content: "";
    display: block;
    width: 20px;
    height: 1px;
    background: var(--accent);
}

.research-hero-status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text-muted);
    font-weight: 400;
}

.research-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: research-pulse-dot 2s ease-in-out infinite;
}

@keyframes research-pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.research-hero-metrics {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2.5rem 3rem;
    margin-top: 2.75rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.research-metric {
    text-align: center;
    min-width: 5.5rem;
}

.research-metric-value {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 300;
    color: var(--text);
    letter-spacing: -0.02em;
    line-height: 1;
}

.research-metric-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.45rem;
    font-weight: 500;
}

.research-subnav {
    position: sticky;
    top: 64px;
    z-index: 50;
    background: rgba(6, 6, 8, 0.92);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
}

.research-subnav-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.35rem 0.15rem;
    padding: 0.65rem 0;
}

.research-subnav a {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius);
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
}

.research-subnav a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}

.scroll-reveal-ready {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.scroll-reveal-visible {
    opacity: 1;
    transform: translateY(0);
}

.category-card:focus {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.category-card:focus:not(:focus-visible) {
    outline: none;
}

.category-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.research-cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    justify-content: center;
    align-items: center;
}

.research-cta-band .aevon-btn-accent {
    padding: 0.75rem 1.75rem;
    font-size: 0.9375rem;
}

.research-cta-note {
    margin-top: 1.5rem;
    margin-bottom: 0;
    font-size: 0.8rem;
    color: var(--text-dim, #3a3a44);
}

.research-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 6vw, 3.75rem);
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1.12;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.research-hero p.lead {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 300;
    line-height: 1.65;
    margin-bottom: 2rem;
}

@keyframes research-fade-up {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.research-hero h1 {
    animation: research-fade-up 0.75s ease backwards;
}

.research-hero p.lead {
    animation: research-fade-up 0.75s ease 0.08s backwards;
}

.search-bar {
    max-width: 520px;
    margin: 0 auto;
    position: relative;
    animation: research-fade-up 0.75s ease 0.15s backwards;
}

.search-bar input {
    width: 100%;
    padding: 0.95rem 7rem 0.95rem 1.35rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.95rem;
    background: var(--bg);
    color: var(--text);
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.search-bar input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-bar button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--accent);
    border: none;
    padding: 0.55rem 1.35rem;
    border-radius: 999px;
    color: var(--bg);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: filter 0.2s, box-shadow 0.2s;
}

.search-bar button:hover {
    filter: brightness(1.06);
    box-shadow: 0 0 20px var(--accent-glow);
}

.category-card {
    background: var(--bg-2);
    border-radius: var(--radius);
    padding: 1.75rem 1.25rem;
    text-align: center;
    transition: border-color var(--transition), transform var(--transition), background var(--transition);
    cursor: pointer;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border);
    height: 100%;
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    background: var(--bg-3);
}

.category-icon {
    font-size: 2.25rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.category-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.research-card {
    background: var(--bg-2);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition), background var(--transition);
    margin-bottom: 1.75rem;
    height: 100%;
    border: 1px solid var(--border);
}

.research-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    background: var(--bg-3);
}

.research-card .card-body {
    padding: 1.5rem;
}

.research-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.85rem;
    line-height: 1.4;
    color: var(--text);
    font-weight: 500;
}

.research-card .meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.85rem;
}

.research-card .abstract {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}

.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.55rem 1.35rem;
    border-radius: var(--radius);
    color: var(--bg) !important;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: filter 0.2s, box-shadow 0.2s;
}

.btn-primary-custom:hover {
    filter: brightness(1.05);
    box-shadow: 0 0 20px var(--accent-glow);
    color: var(--bg) !important;
}

.badge-category {
    background: rgba(200, 245, 118, 0.12);
    border: 1px solid rgba(200, 245, 118, 0.35);
    color: var(--accent);
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.85rem, 4vw, 2.75rem);
    font-weight: 300;
    margin-bottom: 2.5rem;
    color: var(--text);
    position: relative;
    display: inline-block;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -0.65rem;
    left: 0;
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 2px;
}

.research-section-muted {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.research-cta-band {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 4rem 0;
}

.research-cta-band h3 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 1rem;
}

.research-cta-band p {
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 1.75rem;
    font-weight: 300;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out backwards;
}

@media (max-width: 768px) {
    .research-hero {
        padding: 3.5rem 0 3rem;
    }
}