/* CSS Variables for Theming */
:root {
    --transition-speed: 0.3s;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --header-offset: 7.5rem;
}

.light-theme {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.7);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.4);
    --border-color: rgba(15, 23, 42, 0.1);
    --card-border: rgba(255, 255, 255, 0.8);
    --nav-bg: rgba(255, 255, 255, 0.8);
}

.dark-theme {
    --bg-primary: #050505;
    --bg-secondary: #0a0a0d;
    --bg-card: rgba(15, 15, 20, 0.6);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --card-border: rgba(255, 255, 255, 0.05);
    --nav-bg: rgba(5, 5, 5, 0.8);
}

/* Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

main {
    padding-top: var(--header-offset);
}

h1,
h2,
h3,
.logo {
    font-family: var(--font-heading);
}

/* Navigation Bar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.left-group {
    display: flex;
    align-items: center;
    gap: 3rem;
    /* Space between logo and nav links */
}

.logo img {
    height: 26px;
    width: auto;
    display: block;
    filter: none;
    transition: filter var(--transition-speed);
}

body.dark-theme .logo img {
    filter: invert(1);
}

/* Main Navigation */
.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.2s;
    font-family: var(--font-body);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--accent);
}

.controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Language Selector */
.lang-selector {
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.25rem;
    overflow: hidden;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.lang-btn:hover {
    color: var(--text-primary);
}

.lang-btn.active {
    background: var(--accent);
    color: #fff;
}

/* Theme Toggle */
.theme-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background 0.2s;
}

.theme-btn:hover {
    background: var(--bg-secondary);
}

.theme-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.5s ease;
}

.theme-icon.hidden {
    display: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: calc(80vh - var(--header-offset));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(2rem, 6vh, 4.5rem) 2rem 2rem;
    overflow: hidden;
}

.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
    transition: opacity var(--transition-speed);
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-glow);
    top: 10%;
    left: -100px;
    animation: drift 15s infinite alternate ease-in-out;
}

.glow-2 {
    width: 300px;
    height: 300px;
    background: rgba(14, 165, 233, 0.3);
    /* Cyan secondary glow */
    bottom: -50px;
    right: -50px;
    animation: drift 20s infinite alternate-reverse ease-in-out;
}

@keyframes drift {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-body);
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

/* Feed Section */
.feed-section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feed-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.feed-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.hot-fresh-panel {
    margin: 2.5rem auto 3rem;
}

.hot-fresh-subtitle {
    margin-bottom: 1.5rem;
}

.paper-vault-card .badge {
    padding: 0.38rem 0.9rem;
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.papers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* Card Styles */
.paper-card {
    position: relative;
    border-radius: 16px;
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s;
    display: flex;
    flex-direction: column;
}

.paper-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.paper-card:hover .card-glow {
    opacity: 1;
}

.badge {
    display: inline-block;
    align-self: flex-start;
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
}

.deadline-card .badge {
    padding: 0.38rem 0.9rem;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.paper-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.paper-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.read-more {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
}

.read-more:hover {
    color: var(--accent);
}

.paper-analysis-card {
    min-height: 100%;
}

.paper-analyses-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: stretch;
}

.paper-analysis-content {
    height: 100%;
    gap: 0.85rem;
}

.paper-analysis-title {
    margin: 0;
    min-height: calc(1.3em * 3);
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.paper-analysis-authors {
    margin: 0;
    min-height: calc(1.45em * 5);
    flex-grow: 0;
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
    overflow: hidden;
}

.paper-analysis-meta {
    margin-top: 0;
    min-height: 1.6rem;
    justify-content: flex-start;
}

.paper-analysis-date {
    display: inline-flex;
    align-items: center;
    min-height: 1.6rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.paper-analysis-actions {
    margin-top: auto;
    width: 100%;
}

.paper-analysis-action {
    width: 100%;
    min-height: 44px;
    justify-content: center;
    text-align: center;
}

.card-pagination {
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
}

.card-pagination.is-hidden {
    display: none;
}

.card-pagination-button {
    width: 66px;
    height: 66px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.7rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.card-pagination-button:hover:not(:disabled) {
    transform: translateY(-1px);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 10px 24px var(--accent-glow);
}

.card-pagination-button:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.card-pagination-status {
    min-width: 5.5rem;
    text-align: center;
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.04em;
}

/* Categories Section */
.categories-section {
    padding: 8rem 2rem 4rem;
    text-align: center;
}

.categories-section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.category-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.deadline-category-buttons {
    margin-top: 2rem;
}

.papers-field-buttons {
    margin-top: 1.5rem;
    margin-bottom: 2rem;
}

.cat-btn {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--text-primary);
    padding: 0.8rem 2.1rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cat-btn:hover,
.cat-btn.active {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.subcategory-panel {
    max-width: 860px;
    margin: 2rem auto 0;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.subcategory-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.subcategory-label {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
}

.subcat-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.8rem 1.4rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 999px;
    cursor: pointer;
    font-family: var(--font-body);
    transition: all 0.25s ease;
}

.subcat-btn:hover,
.subcat-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 6px 20px var(--accent-glow);
}

.subcategory-feed {
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.deadline-section-header {
    margin-bottom: 1.5rem;
}

.deadline-section-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.deadline-section-header p {
    color: var(--text-secondary);
}

.deadline-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    align-items: stretch;
}

/* Custom Dropdown Styling */
.medical-dropdown-panel {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    max-width: 400px; /* Make it compact */
}

.custom-dropdown {
    position: relative;
    width: 100%;
}

.custom-dropdown-toggle {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.custom-dropdown-toggle:hover, .custom-dropdown.open .custom-dropdown-toggle {
    border-color: var(--accent);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.dropdown-icon {
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}

.custom-dropdown.open .dropdown-icon {
    transform: rotate(180deg);
    color: var(--accent);
}

.custom-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    z-index: 50;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.custom-dropdown.open .custom-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Custom Scrollbar for Dropdown */
.custom-dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.custom-dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
}

.custom-dropdown-menu::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.custom-dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.dropdown-group {
    padding: 0.5rem 0;
}

.dropdown-group + .dropdown-group {
    border-top: 1px solid var(--border-color);
    padding-top: 0.5rem;
}

.dropdown-group-title {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.dropdown-item {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 0.75rem 1rem 0.75rem 1.5rem;
    font-size: 1rem;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.dropdown-item:hover, .dropdown-item.active {
    background: var(--accent-glow);
    color: var(--text-primary);
}

.deadline-card {
    min-height: 100%;
}

.deadline-countdown-stack {
    display: grid;
    gap: 0.8rem;
    margin-bottom: 1.25rem;
}

.deadline-countdown-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(14, 165, 233, 0.04));
}

.conference-start-wrap {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(59, 130, 246, 0.05));
}

.deadline-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.deadline-countdown {
    font-family: var(--font-heading);
    font-size: 2rem;
    line-height: 1;
}

.deadline-meta-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.deadline-meta {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.deadline-meta p {
    display: grid;
    gap: 0.2rem;
    margin-bottom: 0;
}

.deadline-meta span {
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.deadline-link {
    margin-top: auto;
}

.paper-card.full-width {
    width: 100%;
}

.post-text {
    font-size: 1.1rem;
    line-height: 1.8;
}

.hero-shell {
    align-items: flex-start;
    padding-top: 5rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    color: var(--text-secondary);
    background: var(--bg-card);
    margin-bottom: 1.2rem;
}

.hero-search-panel {
    margin-top: 2rem;
    padding: 1.4rem;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(14px);
}

.search-label {
    display: block;
    margin-bottom: 0.8rem;
    text-align: left;
    font-weight: 600;
}

.search-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.8rem;
}

.search-input {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.95rem 1rem;
    font-size: 1rem;
}

.search-status {
    margin-top: 0.85rem;
    color: var(--text-secondary);
    text-align: left;
    font-size: 0.95rem;
}

.public-paper-request-panel {
    text-align: left;
}

.public-paper-request-form {
    display: grid;
    gap: 0.9rem;
    max-width: 860px;
    margin: 0 auto;
}

.public-paper-request-field {
    display: grid;
    gap: 0.45rem;
}

.public-paper-request-field > span {
    color: var(--text-secondary);
    font-weight: 700;
}

.public-paper-request-actions {
    display: grid;
    gap: 0.5rem;
    justify-items: flex-start;
}

.public-paper-request-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.metric-card {
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: var(--bg-card);
    text-align: left;
}

.metric-card strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metric-card span {
    color: var(--text-secondary);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.section-heading > div {
    margin: 0 auto;
}

.section-heading h2 {
    margin-bottom: 0.35rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 0.3rem 0.7rem;
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.hot-fresh-meta {
    align-items: flex-start;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.1rem;
}

.search-card .badge {
    text-transform: capitalize;
}

.specialty-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.75rem;
}

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

.footer-links a:hover {
    color: var(--text-primary);
}

.post-detail-shell {
    max-width: 980px;
    margin: 0 auto;
    padding: calc(var(--header-offset) + 2rem) 1.5rem 3rem;
}

.post-detail-back {
    margin-bottom: 1rem;
}

.back-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.4rem 1rem;
    transition: color 0.2s, border-color 0.2s;
}

.back-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

.post-detail-card {
    border: 1px solid var(--card-border);
    border-radius: 28px;
    background: var(--bg-card);
    padding: 2.25rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
}

.paper-post-shell {
    max-width: 1180px;
}

.paper-post-card {
    padding: clamp(1.25rem, 2.2vw, 2.75rem);
}

.paper-post-topbar-controls {
    flex: 0 0 auto;
}

.paper-post-lang-selector {
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: min(100%, 24rem);
}

.paper-post-topbar-lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    min-width: 3rem;
}

.privacy-policy-shell {
    max-width: 980px;
    margin: 0 auto;
    padding: calc(var(--header-offset) + 2rem) 1.5rem 3rem;
}

.privacy-policy-card {
    border: 1px solid var(--card-border);
    border-radius: 28px;
    background: var(--bg-card);
    padding: clamp(1.5rem, 2.4vw, 2.75rem);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.privacy-policy-lead {
    color: var(--text-secondary);
    margin-top: 0.9rem;
}

.privacy-policy-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    margin: 1.5rem 0 2rem;
    color: var(--text-secondary);
}

.privacy-policy-sections {
    display: grid;
    gap: 1.25rem;
}

.privacy-policy-section {
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.02);
}

.privacy-policy-section h2 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.privacy-policy-section p,
.privacy-policy-section li {
    color: var(--text-secondary);
}

.privacy-policy-section ul {
    padding-left: 1.1rem;
    display: grid;
    gap: 0.45rem;
}

.paper-post-topbar-lang-btn.active {
    cursor: default;
}

.post-detail-card h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.05;
    margin-bottom: 1rem;
}

.post-detail-summary {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.post-detail-published {
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: -0.2rem 0 1.1rem;
}

.paper-post-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin: 0 0 1.25rem;
}

.paper-post-meta-grid .paper-meta-panel {
    display: grid;
    gap: 0.35rem;
}

.paper-post-meta-grid .paper-meta-panel strong {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.paper-post-meta-grid .paper-meta-panel span {
    word-break: break-word;
}

.post-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.post-detail-link {
    margin-bottom: 1.5rem;
}

.post-detail-actions {
    margin-bottom: 1.5rem;
}

.post-detail-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-primary);
    background: transparent;
    border: none;
}

.post-detail-body > * + * {
    margin-top: 1rem;
}

.post-detail-body h1,
.post-detail-body h2,
.post-detail-body h3,
.post-detail-body h4 {
    line-height: 1.2;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.post-detail-body p,
.post-detail-body li {
    color: var(--text-primary);
}

.post-detail-body img {
    display: block;
    width: 100%;
    max-width: 860px;
    height: auto;
    margin: 1.35rem auto 0.8rem;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
}

.post-detail-body ul,
.post-detail-body ol {
    padding-left: 1.4rem;
}

.post-detail-body blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    color: var(--text-secondary);
}

.post-detail-body p > em:only-child {
    display: block;
    margin-top: -0.05rem;
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.92rem;
}

.paper-asset {
    margin: 1.5rem auto;
    width: min(100%, 1040px);
    padding: clamp(0.7rem, 1.4vw, 1.15rem);
    border: 1px solid var(--border-color);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
    overflow: hidden;
}

.paper-asset img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
    margin: 0 auto;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.98);
}

.paper-asset figcaption {
    margin-top: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.94rem;
    line-height: 1.6;
}

.paper-asset-spotlight {
    width: min(100%, 1080px);
    padding: clamp(0.8rem, 1.5vw, 1.25rem);
}

.paper-asset-standard {
    width: min(100%, 980px);
}

.paper-asset-compact {
    width: min(100%, 760px);
}

.post-detail-body table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.post-detail-body th,
.post-detail-body td {
    padding: 0.8rem 0.9rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.post-detail-body th {
    background: rgba(255, 255, 255, 0.04);
    font-weight: 700;
}

.post-detail-body code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.92rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 0.1rem 0.35rem;
}

.post-detail-body pre {
    overflow-x: auto;
    padding: 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
}

.post-detail-body pre code {
    background: transparent;
    padding: 0;
}

.post-detail-body a {
    color: var(--accent);
}

.post-detail-body mjx-container {
    margin: 1rem 0;
    overflow-x: auto;
    overflow-y: hidden;
}

.paper-record-card {
    display: grid;
    gap: 1.5rem;
}

.admin-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: calc(var(--header-offset) + 2rem) 1.5rem 3rem;
    display: grid;
    gap: 1.5rem;
}

.admin-card {
    border: 1px solid var(--card-border);
    border-radius: 28px;
    background: var(--bg-card);
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.admin-login-card {
    max-width: 520px;
    margin: 0 auto;
}

.admin-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-card-head h1,
.admin-card-head h2 {
    line-height: 1.08;
}

.admin-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.admin-progress-card {
    display: grid;
    gap: 1.25rem;
}

.is-hidden {
    display: none !important;
}

.admin-progress-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-progress-percent {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent);
    letter-spacing: -0.04em;
}

.admin-progress-bar {
    width: 100%;
    height: 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1rem;
}

.admin-progress-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #f97316 0%, #facc15 100%);
    transition: width 0.35s ease;
}

.admin-progress-meta {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.9rem;
    margin-bottom: 1rem;
}

.admin-progress-stage {
    font-weight: 700;
}

.admin-metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.9rem;
    margin-bottom: 1rem;
}

.admin-metric-grid-compact {
    margin-top: -0.1rem;
}

.admin-metric-grid .paper-meta-panel {
    display: grid;
    gap: 0.25rem;
}

.admin-muted {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.admin-live-note {
    margin: -0.25rem 0 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.admin-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.admin-action-card {
    display: grid;
    gap: 1rem;
    padding: 1.6rem;
}

.admin-action-card h2 {
    margin: 0;
}

.admin-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.admin-stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
}

.admin-message,
.admin-error {
    padding: 0.85rem 1rem;
    border-radius: 16px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.admin-message {
    background: rgba(34, 197, 94, 0.12);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.admin-error {
    background: rgba(248, 113, 113, 0.12);
    color: #fca5a5;
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.admin-form-stack {
    display: grid;
    gap: 1rem;
}

.admin-field {
    display: grid;
    gap: 0.45rem;
}

.admin-field > span {
    color: var(--text-secondary);
    font-weight: 700;
}

.admin-input {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    padding: 0.85rem 1rem;
    font: inherit;
}

.admin-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.admin-checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-primary);
}

.admin-checkbox input {
    accent-color: var(--accent);
}

.admin-submit {
    justify-self: flex-start;
}

.admin-button,
.admin-link-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.72rem 1.05rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.2;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.admin-button {
    font: inherit;
}

.admin-button:hover,
.admin-link-button:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: var(--accent);
    color: var(--text-primary);
}

.admin-button:disabled,
.admin-button[aria-disabled="true"] {
    opacity: 0.55;
    cursor: wait;
    box-shadow: none;
}

.admin-button:disabled:hover,
.admin-button[aria-disabled="true"]:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.14);
}

.admin-button:focus-visible,
.admin-link-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.admin-link-button {
    word-break: break-all;
}

.admin-link-inline {
    color: var(--accent);
    text-decoration: none;
    word-break: break-all;
}

.admin-link-inline:hover,
.admin-link-inline:focus-visible {
    text-decoration: underline;
}

.admin-queue-list {
    display: grid;
    gap: 1rem;
}

.admin-queue-item {
    display: grid;
    gap: 0.85rem;
    padding: 1.35rem;
    border: 1px solid var(--border-color);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
}

.admin-queue-item.is-active {
    border-color: rgba(249, 115, 22, 0.35);
    background: rgba(249, 115, 22, 0.08);
}

.admin-queue-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.admin-queue-head h3 {
    margin: 0.4rem 0 0;
    line-height: 1.12;
}

.admin-queue-percent {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent);
    letter-spacing: -0.04em;
}

.admin-queue-progress {
    height: 12px;
    margin-bottom: 0;
}

.admin-queue-status-line {
    margin: 0;
    font-weight: 700;
}

.admin-queue-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1.1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.paper-meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.paper-meta-panel {
    padding: 1.25rem 1.4rem;
    border: 1px solid var(--border-color);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
}

.paper-meta-panel h2 {
    font-size: 1rem;
    margin-bottom: 0.8rem;
}

.paper-meta-panel p {
    color: var(--text-secondary);
    margin-bottom: 0.55rem;
    word-break: break-word;
}

.paper-link-stack,
.paper-related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.analysis-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: var(--bg-card);
}

.analysis-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.analysis-table th,
.analysis-table td {
    padding: 0.95rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.analysis-table th {
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.analysis-table td {
    color: var(--text-primary);
}

.analysis-check {
    font-weight: 800;
    font-size: 1.1rem;
}

/* Responsive */
@media (max-width: 1400px) {
    .paper-analyses-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 1180px) {
    .paper-analyses-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .paper-analyses-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --header-offset: 12rem;
    }

    .top-bar {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }

    .left-group {
        width: 100%;
        justify-content: space-between;
        gap: 1rem;
    }

    .main-nav {
        gap: 1rem;
    }

    .controls {
        width: 100%;
        justify-content: space-between;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-search-panel {
        padding: 1rem;
    }

    .search-row {
        grid-template-columns: 1fr;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .lang-btn {
        padding: 0.3rem 0.5rem;
    }

    .categories-section {
        padding: 10rem 1rem 3rem;
    }

    .categories-section h2 {
        margin-bottom: 1.5rem;
    }

    .cat-btn {
        width: 100%;
        max-width: 320px;
        padding: 0.8rem 1.1rem;
    }

    .subcategory-panel {
        padding: 1rem;
    }

    .medical-buttons,
    .medical-subtracks-buttons {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }

    .subcategory-feed {
        padding: 1rem;
    }

    .deadline-countdown {
        font-size: 1.7rem;
    }

    .paper-analyses-grid {
        grid-template-columns: 1fr;
    }

    .card-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .post-detail-card {
        padding: 1.35rem;
    }

    .paper-post-page .top-bar {
        align-items: flex-start;
        gap: 1rem;
    }

    .paper-post-topbar-controls {
        width: 100%;
        justify-content: flex-start;
    }

    .paper-post-lang-selector {
        max-width: 100%;
        justify-content: flex-start;
    }

    .admin-card {
        padding: 1.35rem;
    }

    .admin-card-head {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-action-row {
        width: 100%;
    }

    .admin-progress-head {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-hub-grid {
        grid-template-columns: 1fr;
    }

    .admin-queue-head {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-progress-meta,
    .admin-metric-grid,
    .admin-checkbox-grid {
        grid-template-columns: 1fr;
    }

    .paper-meta-grid {
        grid-template-columns: 1fr;
    }
}