/**
 * Alternate homepage — IJIRT-inspired layout for Physics Access.
 * Used by index2.php
 */

.site-body--alt {
    background: #f4f6f8;
}

/* Top utility bar */
.alt-topbar {
    background: #1e293b;
    color: #e2e8f0;
    font-size: 0.75rem;
}

.alt-topbar__inner {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0.4rem 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.alt-topbar__issn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.alt-topbar__links {
    display: flex;
    gap: 1rem;
}

.alt-topbar__links a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

.alt-topbar__links a:hover {
    color: var(--color-yellow, #facc15);
}

/* Header */
.alt-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.alt-header__bar {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0.625rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alt-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    color: var(--color-ink, #0f172a);
    flex-shrink: 0;
}

.alt-brand__text {
    font-size: 1.125rem;
    font-weight: 700;
}

.alt-nav-desktop {
    display: none;
    align-items: center;
    gap: 0.125rem;
    flex: 1;
    min-width: 0;
}

@media (min-width: 1024px) {
    .alt-nav-desktop {
        display: flex;
    }
}

.alt-nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
    text-decoration: none;
    border-radius: 0.375rem;
    transition: color 0.15s, background 0.15s;
}

.alt-nav-link:hover,
.alt-nav-link--active {
    color: var(--color-green, #008c23);
    background: rgba(0, 140, 35, 0.06);
}

.alt-nav-link--btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
}

.alt-nav-dropdown {
    position: relative;
}

.alt-nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 11rem;
    padding: 0.375rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
}

.alt-nav-menu a {
    display: block;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    color: #334155;
    text-decoration: none;
    border-radius: 0.25rem;
}

.alt-nav-menu a:hover,
.alt-nav-menu a.alt-nav-menu__link--active {
    background: rgba(0, 140, 35, 0.06);
    color: var(--color-green, #008c23);
}

.alt-nav-menu a.alt-nav-menu__link--active {
    font-weight: 600;
}

.alt-btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #008c23, #006b1a);
    border-radius: 0.375rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 4px 12px rgba(0, 140, 35, 0.25);
}

.alt-btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 140, 35, 0.3);
}

.alt-btn-submit--block {
    width: 100%;
}

.alt-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-green, #008c23);
    background: #fff;
    border: 2px solid var(--color-green, #008c23);
    border-radius: 0.375rem;
    text-decoration: none;
    transition: background 0.15s;
}

.alt-btn-outline:hover {
    background: rgba(0, 140, 35, 0.06);
}

.alt-header__actions--desktop {
    display: none;
}

@media (min-width: 1024px) {
    .alt-header__actions--desktop {
        display: block;
    }
}

.alt-menu-toggle {
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.375rem;
    background: #fff;
    color: #334155;
    font-size: 1.125rem;
    cursor: pointer;
}

@media (min-width: 1024px) {
    .alt-menu-toggle {
        display: none;
    }
}

.alt-nav-mobile {
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid #e2e8f0;
    background: #fff;
}

.alt-nav-mobile-link {
    display: block;
    padding: 0.625rem 0;
    font-weight: 600;
    color: #334155;
    text-decoration: none;
    border: none;
    background: none;
    font-family: inherit;
    font-size: 0.9375rem;
}

.alt-nav-mobile-sub {
    padding-left: 0.75rem;
    margin-bottom: 0.5rem;
}

.alt-nav-mobile-sub a {
    display: block;
    padding: 0.375rem 0;
    font-size: 0.875rem;
    color: #64748b;
    text-decoration: none;
}

.alt-nav-mobile-link--active,
.alt-nav-mobile-sub a.alt-nav-mobile-sub__link--active {
    color: var(--color-green, #008c23);
}

/* Hero */
.alt-hero {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid #e2e8f0;
    background-color: #eef2f6;
    background-image: url("../assets/images/hero-researcher.png");
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
}

.alt-hero__overlay {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0.94) 0%,
        rgba(248, 250, 252, 0.88) 35%,
        rgba(238, 242, 246, 0.72) 55%,
        rgba(15, 23, 42, 0.25) 100%
    );
}

.alt-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 80rem;
    margin: 0 auto;
    padding: 1.5rem 1rem 2rem;
}

@media (min-width: 900px) {
    .alt-hero__inner {
        padding: 2.25rem 1rem 2.75rem;
    }
}

.alt-hero__content {
    max-width: 100%;
    text-align: center;
}

@media (min-width: 768px) {
    .alt-hero__content {
        max-width: 52%;
        text-align: left;
    }
}

.alt-hero__lead {
    margin: 0.75rem 0 0;
    max-width: 36rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #64748b;
}

@media (min-width: 768px) {
    .alt-hero__lead {
        margin-left: 0;
        margin-right: auto;
    }
}

.alt-hero-search {
    margin-top: 1.25rem;
    max-width: 32rem;
}

@media (min-width: 768px) {
    .alt-hero-search {
        margin-left: 0;
        margin-right: auto;
    }
}

@media (max-width: 767px) {
    .alt-hero {
        background-position: center;
    }

    .alt-hero__overlay {
        background: linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.92) 0%,
            rgba(248, 250, 252, 0.9) 45%,
            rgba(238, 242, 246, 0.85) 100%
        );
    }
}

.alt-hero__tag {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-green, #008c23);
    margin: 0;
}

.alt-hero__title {
    margin: 0.5rem 0 0;
    font-size: clamp(1.375rem, 3vw, 2rem);
    line-height: 1.2;
    color: #0f172a;
}


.alt-hero-search__wrap {
    display: flex;
    align-items: stretch;
    background: #fff;
    border: 2px solid #e2e8f0;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.alt-hero-search__wrap i {
    padding: 0 0.75rem;
    color: #94a3b8;
    align-self: center;
}

.alt-hero-search__wrap input {
    flex: 1;
    min-width: 0;
    border: none;
    padding: 0.75rem 0.5rem;
    font-size: 0.875rem;
    outline: none;
}

.alt-hero-search__wrap button {
    padding: 0.75rem 1.25rem;
    font-weight: 700;
    font-size: 0.875rem;
    color: #fff;
    background: var(--color-green, #008c23);
    border: none;
    cursor: pointer;
}

.alt-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
    justify-content: center;
}

@media (min-width: 768px) {
    .alt-hero__cta {
        justify-content: flex-start;
    }
}

.alt-hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    justify-content: center;
}

@media (min-width: 768px) {
    .alt-hero-stats {
        justify-content: flex-start;
    }
}

.alt-hero-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #475569;
}

.alt-hero-stat i {
    color: var(--color-green, #008c23);
}

/* Main layout */
.alt-main {
    padding: 1.5rem 0 3rem;
}

.alt-main__inner {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .alt-main__inner {
        grid-template-columns: 1fr 300px;
        gap: 2rem;
        align-items: start;
    }
}

.alt-section-title {
    font-size: 1.375rem;
    color: #0f172a;
    margin: 0 0 1rem;
}

.alt-section-lead {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: #64748b;
    margin: 0;
}

/* Sections */
.alt-main__content > section {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .alt-main__content > section {
        padding: 1.5rem;
    }
}

.alt-strip {
    background: #f8fafc;
}

.alt-strip__title {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
    margin: 0 0 0.75rem;
    text-align: center;
}

.alt-partners {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.75rem 1rem;
}

.alt-partner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.875rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #334155;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 9999px;
    text-decoration: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.alt-partner:hover {
    border-color: rgba(0, 140, 35, 0.35);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.alt-partner--logo {
    padding: 0.5rem 0.75rem;
    background: #fff;
    border-radius: 0.5rem;
    min-height: 3.25rem;
    min-width: 5rem;
}

.alt-partner__logo {
    display: block;
    max-height: 2.5rem;
    max-width: 7.5rem;
    width: auto;
    height: auto;
    object-fit: contain;
}

.alt-strip__empty {
    margin: 0;
    text-align: center;
    font-size: 0.875rem;
    color: #64748b;
}

.alt-widget-list__footer {
    margin: 0.75rem 0 0;
    padding-top: 0.5rem;
    border-top: 1px solid #f1f5f9;
}

.alt-about__grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .alt-about__grid {
        grid-template-columns: 1fr auto;
    }
}

.alt-about__cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

@media (max-width: 639px) {
    .alt-about__cards {
        grid-template-columns: 1fr;
    }
}

.alt-stat-card {
    padding: 1rem;
    text-align: center;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
}

.alt-stat-card i {
    font-size: 1.25rem;
    color: var(--color-green, #008c23);
}

.alt-stat-card strong {
    display: block;
    margin-top: 0.5rem;
    font-size: 1.125rem;
    color: #0f172a;
}

.alt-stat-card span {
    font-size: 0.75rem;
    color: #64748b;
}

.alt-stat-card--green {
    background: rgba(0, 140, 35, 0.08);
    border-color: rgba(0, 140, 35, 0.2);
}

.alt-checklist {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.alt-checklist li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #334155;
    margin-bottom: 0.5rem;
}

.alt-checklist i {
    color: var(--color-green, #008c23);
    margin-top: 0.15rem;
}

.alt-checklist--cols {
    columns: 1;
}

@media (min-width: 640px) {
    .alt-checklist--cols {
        columns: 2;
        column-gap: 1.5rem;
    }
}

.alt-table-wrap {
    overflow-x: auto;
}

.alt-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.alt-table th,
.alt-table td {
    padding: 0.625rem 0.75rem;
    border: 1px solid #e2e8f0;
    text-align: left;
    vertical-align: top;
}

.alt-table th {
    width: 35%;
    font-weight: 700;
    background: #f8fafc;
    color: #334155;
}

.alt-table a {
    color: var(--color-green, #008c23);
    font-weight: 600;
}

.alt-steps__grid {
    display: grid;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .alt-steps__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .alt-steps__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.alt-step {
    padding: 1rem;
    background: #f8fafc;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
}

.alt-step__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.75rem;
    font-weight: 800;
    color: #fff;
    background: var(--color-green, #008c23);
    border-radius: 9999px;
}

.alt-step h3 {
    margin: 0.5rem 0 0.25rem;
    font-size: 0.9375rem;
    color: #0f172a;
}

.alt-step p {
    margin: 0;
    font-size: 0.8125rem;
    color: #64748b;
    line-height: 1.5;
}

.alt-why__grid {
    display: grid;
    gap: 1.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .alt-why__grid {
        grid-template-columns: 1fr 200px;
    }
}

.alt-why__visual img {
    width: 100%;
    border-radius: 0.5rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
}

/* Submit paper CTA */
.alt-main__content > section.alt-submit {
    background: linear-gradient(135deg, #008c23 0%, #006b1a 100%);
    border-color: rgba(0, 0, 0, 0.08);
    color: #fff;
}

.alt-submit__inner {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

@media (min-width: 640px) {
    .alt-submit__inner {
        align-items: center;
        gap: 1.5rem;
    }
}

.alt-submit__icon {
    flex-shrink: 0;
    width: 3.25rem;
    height: 3.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 9999px;
}

@media (min-width: 640px) {
    .alt-submit__icon {
        width: 4rem;
        height: 4rem;
        font-size: 1.5rem;
    }
}

.alt-main__content > section.alt-submit .alt-submit__title {
    margin: 0;
    font-size: 1.375rem;
    color: #fff;
}

.alt-main__content > section.alt-submit .alt-submit__lead {
    margin: 0.5rem 0 0;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
    max-width: 40rem;
}

.alt-submit__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.alt-main__content > section.alt-submit .alt-btn-submit {
    background: #fff;
    color: #006b1a;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.alt-main__content > section.alt-submit .alt-btn-submit:hover {
    background: #f8fafc;
    color: #006b1a;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.alt-main__content > section.alt-submit .alt-btn-outline--on-green {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.85);
    background: transparent;
}

.alt-main__content > section.alt-submit .alt-btn-outline--on-green:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.alt-main__content > section.alt-submit .alt-submit__link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.alt-main__content > section.alt-submit .alt-submit__link:hover {
    color: var(--color-yellow, #facc15);
}

/* FAQ */
.alt-faq__item {
    border-bottom: 1px solid #e2e8f0;
}

.alt-faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.875rem 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: #0f172a;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}

.alt-faq__answer {
    padding-bottom: 0.875rem;
}

.alt-faq__answer p {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #64748b;
}

/* News & editorials */
.alt-news__question {
    gap: 1rem;
}

.alt-news__title {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.alt-news__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.alt-news__date {
    font-size: 0.8125rem;
    font-weight: 500;
    color: #64748b;
    white-space: nowrap;
}

.alt-news__body {
    font-size: 0.875rem;
    line-height: 1.6;
    color: #64748b;
}

.alt-news__body p {
    margin: 0 0 0.75rem;
}

.alt-news__body p:last-child {
    margin-bottom: 0;
}

/* Sidebar */
.alt-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.alt-widget {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.25rem;
}

.alt-widget--cta {
    background: linear-gradient(135deg, #008c23 0%, #006b1a 100%);
    border: none;
    color: #fff;
    text-align: center;
}

.alt-widget--cta .alt-widget__title,
.alt-widget--cta .alt-widget__text {
    color: #fff;
}

.alt-widget--cta .alt-widget__icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 9999px;
}

.alt-widget--muted {
    background: #f8fafc;
}

.alt-widget__title {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
}

.alt-widget__text {
    margin: 0 0 1rem;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.9);
}

.alt-widget:not(.alt-widget--cta) .alt-widget__text {
    color: #64748b;
}

.alt-widget-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.alt-widget-list li {
    padding: 0.625rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.alt-widget-list li:last-child {
    border-bottom: none;
}

.alt-widget-list__id {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-green, #008c23);
    margin-bottom: 0.15rem;
}

.alt-widget-list a {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #334155;
    text-decoration: none;
    line-height: 1.4;
}

.alt-widget-list a:hover {
    color: var(--color-green, #008c23);
}

.alt-widget-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.alt-widget-links li {
    margin-bottom: 0.35rem;
}

.alt-widget-links a {
    font-size: 0.8125rem;
    color: #475569;
    text-decoration: none;
}

.alt-widget-links a:hover {
    color: var(--color-green, #008c23);
}

.alt-widget-links__more {
    font-weight: 700;
    color: var(--color-green, #008c23);
}

.alt-widget--badge {
    text-align: center;
    background: #f8fafc;
}

.alt-widget-badge-link {
    display: block;
    opacity: 0.9;
    transition: opacity 0.15s;
}

.alt-widget-badge-link:hover {
    opacity: 1;
}

.alt-widget-badge-img {
    height: 5rem;
    width: auto;
    object-fit: contain;
    margin: 0 auto;
}

.alt-widget--cc {
    font-size: 0.75rem;
    color: #64748b;
    background: #f8fafc;
}

.alt-widget-cc-img {
    margin-bottom: 0.5rem;
}

.alt-widget-cc-text {
    margin: 0;
    line-height: 1.5;
}

.alt-widget-cc-text a {
    color: var(--color-green, #008c23);
    font-weight: 600;
    text-decoration: none;
}

.alt-widget-cc-text a:hover {
    text-decoration: underline;
}

/* Public site — unified alt layout (all pages) */
.site-body--alt {
    background: #f4f6f8;
    background-image: none;
}

.alt-main--page {
    padding-top: 1.25rem;
}

.alt-page-content {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .alt-page-content {
        padding: 1.5rem 1.75rem;
    }
}

.alt-page-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e2e8f0;
}

.alt-page-header__title {
    margin: 0;
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    color: #0f172a;
    line-height: 1.2;
}

.alt-page-header__lead {
    margin: 0.5rem 0 0;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #64748b;
}

.alt-page-content h1,
.alt-page-content .cms-h1 {
    margin: 0 0 1rem;
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    font-family: 'Libre Baskerville', Georgia, serif;
    color: #0f172a;
    line-height: 1.2;
}

.alt-page-content h2,
.alt-page-content h3,
.alt-page-content h4 {
    margin: 1.5rem 0 0.75rem;
    color: #0f172a;
    line-height: 1.3;
}

.alt-page-content h2 { font-size: 1.25rem; }
.alt-page-content h3 { font-size: 1.0625rem; }
.alt-page-content h4 { font-size: 1rem; }

.alt-page-content p,
.alt-page-content li {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: #475569;
}

.alt-page-content p {
    margin: 0 0 1rem;
}

.alt-page-content ul,
.alt-page-content ol {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
}

.alt-page-content a {
    color: var(--color-green, #008c23);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.alt-page-content a:hover {
    color: var(--color-green-dark, #006b1a);
}

.alt-page-content hr {
    margin: 1.25rem 0;
    border: none;
    border-top: 1px solid #e2e8f0;
}

.alt-page-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    margin: 1rem 0;
}

.alt-page-content th,
.alt-page-content td {
    padding: 0.625rem 0.75rem;
    border: 1px solid #e2e8f0;
    text-align: left;
    vertical-align: top;
}

.alt-page-content th {
    background: #f8fafc;
    font-weight: 700;
    color: #334155;
}

.alt-page-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

.alt-doc-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0 1.5rem;
}

.alt-doc-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-green, #008c23);
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 0.5rem;
    text-decoration: none;
}

.alt-doc-link:hover {
    background: #dcfce7;
    color: var(--color-green-dark, #006b1a);
}

.alt-main__content .articles-section,
.alt-main__content .paper-detail {
    margin-bottom: 0;
}

.alt-main__content .page-header {
    margin-bottom: 1.25rem;
}

.alt-main__content .page-header__title {
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    color: #0f172a;
}

.alt-main__content .page-header__subtitle {
    color: #64748b;
    font-size: 0.9375rem;
}

.alt-main__content .hero-search {
    margin-bottom: 1.5rem;
}

.alt-main--home .articles-section {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
    overflow: hidden;
}

.alt-main--home .articles-section__header {
    padding: 1rem 1.25rem 0;
}

@media (min-width: 640px) {
    .alt-main--home .articles-section__header {
        padding: 1.25rem 1.5rem 0;
    }
}

.site-body--alt .site-footer {
    background: #1e293b;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-body--alt .site-footer__inner {
    max-width: 80rem;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.site-body--alt .alt-page-content > h3:first-child + hr {
    display: none;
}

.site-body--alt .site-footer__bottom {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.65);
}

/* Editorial board */
.alt-board-heading {
    margin: 1.5rem 0 1rem;
    font-size: 1.0625rem;
    font-weight: 700;
    color: #0f172a;
}

.alt-board-heading:first-child {
    margin-top: 0;
}

.alt-board-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 640px) {
    .alt-board-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .alt-board-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.alt-board-card {
    padding: 1rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    text-align: center;
}

.alt-board-card__photo {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin: 0 auto 0.75rem;
    display: block;
}

.alt-board-card__name {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #0f172a;
}

.alt-board-card__role,
.alt-board-card__meta {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: #64748b;
}

.alt-board-empty {
    margin: 0;
    font-size: 0.875rem;
    color: #64748b;
}

/* Auth — login / register */
.alt-auth {
    padding: 1.5rem 1rem 3rem;
}

.alt-auth__card {
    max-width: 56rem;
    margin: 0 auto;
    display: grid;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
}

@media (min-width: 768px) {
    .alt-auth__card {
        grid-template-columns: 1fr 1fr;
        min-height: 32rem;
    }
}

.alt-auth__visual {
    position: relative;
    min-height: 12rem;
    background-color: #1e3a2f;
    background-size: cover;
    background-repeat: no-repeat;
}

@media (min-width: 768px) {
    .alt-auth__visual {
        min-height: auto;
    }
}

.alt-auth__visual-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 70, 28, 0.92) 0%,
        rgba(0, 108, 35, 0.75) 40%,
        rgba(0, 108, 35, 0.35) 100%
    );
}

.alt-auth__visual-content {
    position: relative;
    z-index: 1;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 12rem;
}

@media (min-width: 768px) {
    .alt-auth__visual-content {
        min-height: 100%;
        padding: 2.5rem 2rem;
    }
}

.alt-auth__brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    line-height: 1.2;
}

.alt-auth__brand span {
    color: var(--color-yellow, #facc15);
}

.alt-auth__visual-text {
    margin: 0.75rem 0 0;
    font-size: 0.875rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.9);
    max-width: 16rem;
}

.alt-auth__panel {
    padding: 1.75rem 1.5rem 2rem;
}

@media (min-width: 768px) {
    .alt-auth__panel {
        padding: 2.5rem 2rem;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

.alt-auth__title {
    margin: 0;
    font-size: 1.5rem;
    color: #0f172a;
    line-height: 1.2;
}

.alt-auth__lead {
    margin: 0.5rem 0 0;
    font-size: 0.875rem;
    line-height: 1.5;
    color: #64748b;
}

.alt-auth__alerts {
    margin-top: 1rem;
}

.alt-auth__alerts p,
.alt-auth__alerts span {
    display: block;
    margin: 0 0 0.5rem;
    font-size: 0.875rem;
    line-height: 1.45;
}

.alt-auth-form {
    margin-top: 1.25rem;
}

.alt-auth-form__group {
    margin-bottom: 1rem;
}

.alt-auth-form__group label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #334155;
}

.alt-auth-form__input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: #0f172a;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.alt-auth-form__input:focus {
    outline: none;
    border-color: var(--color-green, #008c23);
    box-shadow: 0 0 0 3px rgba(0, 140, 35, 0.12);
}

.alt-auth-form__submit {
    width: 100%;
    margin-top: 0.25rem;
    padding: 0.7rem 1rem;
    font-size: 0.9375rem;
    font-weight: 700;
    font-family: inherit;
    color: #fff;
    background: linear-gradient(135deg, #008c23, #006b1a);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 140, 35, 0.25);
    transition: transform 0.15s, box-shadow 0.15s;
}

.alt-auth-form__submit:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 140, 35, 0.3);
}

.alt-auth-form__submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.alt-auth__footer {
    margin-top: 1.25rem;
    text-align: center;
    font-size: 0.875rem;
    color: #64748b;
}

.alt-auth__footer a {
    color: var(--color-green, #008c23);
    font-weight: 600;
    text-decoration: none;
}

.alt-auth__footer a:hover {
    text-decoration: underline;
}

.alt-auth-password-hint {
    display: none;
    margin-top: 0.75rem;
    padding: 0.75rem;
    font-size: 0.8125rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
}

.alt-auth-password-hint h3 {
    margin: 0 0 0.5rem;
    font-size: 0.8125rem;
    font-weight: 700;
    color: #334155;
}

.alt-auth-password-hint p {
    margin: 0.25rem 0;
}

.alt-auth-password-hint .valid {
    color: #008c23;
}

.alt-auth-password-hint .invalid {
    color: #dc2626;
}

.site-body--alt.site-body--auth .site-footer__inner {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}