/* Restores the original BlogrXiv hero without changing the redesigned index below. */
.academic-home .legacy-hero {
    min-height: 760px;
    padding: 78px 0 72px;
    overflow: hidden;
    border-bottom: 1px solid rgba(37, 99, 235, 0.12);
    background: linear-gradient(180deg, #edf7ff 0%, #f7fbff 100%);
}

.academic-home .legacy-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    display: block;
    background:
        linear-gradient(45deg, transparent 48%, rgba(70, 135, 205, 0.045) 49%, rgba(70, 135, 205, 0.045) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(70, 135, 205, 0.045) 49%, rgba(70, 135, 205, 0.045) 51%, transparent 52%);
    background-size: 72px 72px;
    pointer-events: none;
}

.academic-home .legacy-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    display: block;
    background: radial-gradient(circle at 48% 44%, rgba(96, 165, 250, 0.12), transparent 46%);
    pointer-events: none;
}

.academic-home .legacy-hero .hero-container {
    position: relative;
    z-index: 1;
    width: min(100% - 48px, 1420px);
    max-width: 1420px;
    min-height: 610px;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(430px, 0.98fr);
    gap: 68px;
    align-items: center;
    text-align: left;
}

.academic-home .legacy-hero .hero-content {
    max-width: 720px;
}

.academic-home .legacy-hero .digital-display {
    justify-content: center;
    margin: 0 0 46px;
}

.academic-home .legacy-hero .digital-screen {
    min-width: 320px;
    min-height: 72px;
    padding: 20px 34px;
    border-radius: 18px;
}

.academic-home .legacy-hero .hero-title {
    max-width: 720px;
    margin: 0 0 30px;
    color: #0f172a;
    font-family: "Inter", system-ui, sans-serif;
    font-size: clamp(2.8rem, 3.6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: 0;
}

.academic-home .legacy-hero .hero-title-line {
    display: block;
    white-space: nowrap;
}

.academic-home .legacy-hero .gradient-text {
    display: inline-block;
    color: transparent;
    background: linear-gradient(135deg, #155ca0 0%, #2f6df2 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.academic-home .legacy-hero .hero-readership {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    margin: 0 0 28px;
}

.academic-home .legacy-hero .hero-view-count,
.academic-home .legacy-hero .hero-github-star {
    border: 1px solid rgba(37, 99, 235, 0.18);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.74);
    box-shadow: none;
}

.academic-home .legacy-hero .hero-description {
    max-width: 690px;
    margin: 0 0 28px;
    color: #4b5d74;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 1.08rem;
    line-height: 1.75;
}

.academic-home .legacy-hero .hero-actions-single {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 0;
}

.academic-home .legacy-hero .hero-actions-single .btn:last-child {
    grid-column: 1 / -1;
}

.academic-home .legacy-hero .btn-cta {
    width: 100%;
    min-height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 9px;
    background: linear-gradient(135deg, #155b9d 0%, #2c67e8 100%);
    color: #fff;
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.13);
}

.academic-home .legacy-hero .btn-cta:hover {
    background: linear-gradient(135deg, #104e89 0%, #245bd0 100%);
    transform: translateY(-1px);
}

.academic-home .legacy-hero .hero-visual {
    min-height: 610px;
    display: flex;
    align-items: center;
}

.academic-home .legacy-hero .research-cards {
    width: 100%;
    max-width: none;
    gap: 24px;
}

.academic-home .legacy-hero .research-card {
    min-height: 164px;
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    column-gap: 24px;
    align-items: start;
    padding: 28px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 14px 34px rgba(30, 64, 175, 0.06);
    backdrop-filter: blur(8px);
}

.academic-home .legacy-hero .research-card::before {
    display: none;
}

.academic-home .legacy-hero .research-card:hover {
    border-color: rgba(37, 99, 235, 0.22);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 18px 38px rgba(30, 64, 175, 0.09);
    transform: translateY(-2px);
}

.academic-home .legacy-hero .research-icon {
    width: 54px;
    height: 54px;
    grid-column: 1;
    grid-row: 1;
    border-radius: 14px;
}

.academic-home .legacy-hero .research-content {
    min-width: 0;
    grid-column: 2;
    grid-row: 1;
}

.academic-home .legacy-hero .research-title {
    margin: 0 0 8px;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 1.24rem;
    font-weight: 700;
}

.academic-home .legacy-hero .research-description {
    width: 100%;
    margin: 0;
    color: #52637a;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 0.9rem;
    line-height: 1.65;
    letter-spacing: 0;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-word;
    hyphens: auto;
}

[data-theme="dark"] .academic-home .legacy-hero {
    background: linear-gradient(180deg, #17212b 0%, #1d2935 100%);
}

[data-theme="dark"] .academic-home .legacy-hero .hero-title {
    color: #edf3f9;
}

[data-theme="dark"] .academic-home .legacy-hero .hero-description,
[data-theme="dark"] .academic-home .legacy-hero .research-description {
    color: #bdcbd8;
}

[data-theme="dark"] .academic-home .legacy-hero .research-card {
    border-color: rgba(148, 163, 184, 0.16);
    background: rgba(38, 51, 64, 0.84);
}

@media (max-width: 1040px) {
    .academic-home .legacy-hero .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .academic-home .legacy-hero .hero-content {
        max-width: 760px;
        margin-inline: auto;
    }

    .academic-home .legacy-hero .hero-visual {
        min-height: 0;
    }
}

@media (max-width: 680px) {
    .academic-home .legacy-hero {
        min-height: 0;
        padding: 48px 0 56px;
    }

    .academic-home .legacy-hero .hero-container {
        width: min(100% - 32px, 1420px);
        min-height: 0;
        gap: 42px;
    }

    .academic-home .legacy-hero .digital-display {
        margin-bottom: 30px;
    }

    .academic-home .legacy-hero .digital-screen {
        width: 100%;
        min-width: 0;
        min-height: 58px;
    }

    .academic-home .legacy-hero .hero-title {
        font-size: clamp(1.55rem, 7.2vw, 2.65rem);
    }

    .academic-home .legacy-hero .hero-readership {
        align-items: flex-start;
        flex-direction: column;
    }

    .academic-home .legacy-hero .hero-actions-single {
        grid-template-columns: 1fr;
    }

    .academic-home .legacy-hero .hero-actions-single .btn:last-child {
        grid-column: auto;
    }

    .academic-home .legacy-hero .research-card {
        min-height: 0;
        grid-template-columns: 46px minmax(0, 1fr);
        column-gap: 16px;
        padding: 22px;
    }

    .academic-home .legacy-hero .research-icon {
        width: 46px;
        height: 46px;
        border-radius: 12px;
    }

    .academic-home .legacy-hero .research-icon svg {
        width: 26px;
        height: 26px;
    }
}