:root {
    --color-primary: #0F2137;
    --color-primary-hover: #1A365D;
    --color-secondary: #2C5282;
    --color-secondary-hover: #2B4365;
    --color-accent: #C05621;
    --color-accent-hover: #9C4221;
    --color-accent-subtle: #FEEBC8;
    --color-bg-main: #FBFBF9;
    --color-bg-secondary: #F3F4F0;
    --color-bg-alt: #ECEEE8;
    --color-card-bg: #FFFFFF;
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-border-light: #E2E8F0;
    --color-border-subtle: #CBD5E1;
    --font-serif: 'Newsreader', 'Georgia', serif;
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-sans);
    background-color: var(--color-bg-main);
    color: var(--color-text-primary);
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg-main);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
}

.font-serif {
    font-family: var(--font-serif);
}

.font-mono {
    font-family: var(--font-mono);
}

.bg-academic-cream {
    background-color: var(--color-bg-main);
}

.text-muted {
    color: #64748B !important;
}

.academic-container {
    width: 100%;
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .academic-container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .academic-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* ===== header ===== */
.site-header-block {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.site-header-block img {
    max-width: 48px;
    max-height: 48px;
}

.site-header-block a {
    text-decoration: none;
}

/* ===== hero ===== */
.atlas-hero {
    background-color: #0F2137;
}

.atlas-hero__mockup {
    box-shadow: 0 20px 40px -15px rgba(15, 33, 55, 0.35);
}

.atlas-hero .js-hero-role-btn.active {
    outline: 2px solid #0F2137;
    outline-offset: 1px;
    font-weight: 700;
}

.atlas-hero .js-hero-highlight.atlas-hero__dimmed {
    opacity: 0.25;
    filter: grayscale(80%);
}

/* ===== source-roles ===== */
.source-roles-section {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.source-roles-section h2,
.source-roles-section h3 {
    font-family: 'Newsreader', 'Georgia', serif;
}

.source-roles-section .js-role-btn.active {
    background-color: #0F2137;
    color: #FFFFFF;
    border-color: #0F2137;
}

.source-roles-section .line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== understanding-source-function ===== */
.source-function-section input[type="checkbox"]:checked {
    background-color: #0F2137;
    border-color: #0F2137;
}

.source-function-section .js-checklist-item:focus {
    outline: 2px solid #0F2137;
    outline-offset: 2px;
}

/* ===== featured-case ===== */
.featured-case-section .active-tab {
    background-color: #FFFFFF;
    color: #0F172A;
}

/* ===== cost-of-inaction ===== */
.source-cost-section select option {
    background-color: #FFFFFF;
    color: #0F172A;
}

.source-cost-section input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #0F2137;
    cursor: pointer;
    border: 2px solid #FFFFFF;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.source-cost-section input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #0F2137;
    cursor: pointer;
    border: 2px solid #FFFFFF;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ===== common-mistakes ===== */
.common-mistakes-section .active-filter-btn {
    background-color: #0F2137;
    color: #FFFFFF;
    border: 1px solid #0F2137;
}

.common-mistakes-section .inactive-filter-btn {
    background-color: #FFFFFF;
    color: #475569;
    border: 1px solid #E2E8F0;
}

.common-mistakes-section .inactive-filter-btn:hover {
    background-color: #F3F4F0;
    color: #0F172A;
}

.common-mistakes-section .js-mistake-card.is-hidden {
    display: none !important;
}

/* ===== work-formats ===== */
.work-formats-section {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.work-formats-section .js-tab-btn.active {
    background-color: #FFFFFF;
    color: #0F2137;
    border-color: #CBD5E1;
    box-shadow: 0 1px 3px rgba(15, 33, 55, 0.06);
}

.work-formats-section table th,
.work-formats-section table td {
    vertical-align: middle;
}

/* ===== short-request-form ===== */
.short-request-block input::placeholder {
    color: #64748B;
    opacity: 1;
}

.short-request-block input:-ms-input-placeholder {
    color: #64748B;
}

.short-request-block input::-ms-input-placeholder {
    color: #64748B;
}

.short-request-block .short-request-card {
    box-shadow: 0 1px 3px rgba(15, 33, 55, 0.06), 0 4px 6px -2px rgba(15, 33, 55, 0.03);
}

/* ===== footer ===== */
.site-footer {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

.site-footer h3 {
    font-family: 'Newsreader', 'Georgia', serif;
    letter-spacing: 0.05em;
}

.site-footer a {
    text-decoration: none;
}

.site-footer a:focus-visible {
    outline: 2px solid #FBD38D;
    outline-offset: 2px;
    border-radius: 2px;
}

/* ===== PAGE: about ===== */
.about-content .js-role-btn.active{background-color:#0F2137;color:#FFFFFF;border-color:#0F2137;}.about-content .js-role-btn:not(.active){background-color:#F3F4F0;color:#0F172A;border-color:#E2E8F0;}.about-content .js-role-btn:not(.active):hover{background-color:#ECEEE8;}

/* ===== PAGE: guides ===== */
.guides-directory-section { font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif; }
.guides-directory-section .font-serif { font-family: 'Newsreader', 'Georgia', serif; }
.guides-directory-section .font-mono { font-family: 'JetBrains Mono', monospace; }
.guides-directory-section .js-filter-btn.active-filter { background-color: #0F2137; color: #FFFFFF; border-color: #0F2137; }
.guides-directory-section input[type="search"]::placeholder { color: #94A3B8; opacity: 1; }
.guides-directory-section input[type="search"]::-webkit-input-placeholder { color: #94A3B8; }
.guides-directory-section input[type="search"]::-moz-placeholder { color: #94A3B8; }
.guides-directory-section input[type="search"]:-ms-input-placeholder { color: #94A3B8; }

/* ===== PAGE: courses ===== */
.courses-list-block {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}
.courses-list-block h1, .courses-list-block h2, .courses-list-block h3 {
  font-family: 'Newsreader', 'Georgia', serif;
}
.courses-list-block input::placeholder {
  color: #94A3B8;
  opacity: 1;
}
.courses-list-block select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23475569' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.25rem;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
.courses-list-block .active-filter {
  background-color: #0F2137 !important;
  color: #FFFFFF !important;
  border-color: #0F2137 !important;
}

/* ===== PAGE: blog ===== */
.atlas-blog-section .js-post-card img{transition:transform 0.2s ease-in-out}.atlas-blog-section .js-post-card:hover img{transform:scale(1.02)}.atlas-blog-section .js-filter-btn.active{background-color:#0F2137;color:#FFFFFF;border-color:#0F2137;font-weight:600}.atlas-blog-section .js-filter-btn:not(.active){background-color:#F3F4F0;color:#334155;border-color:#E2E8F0;font-weight:500}.atlas-blog-section .js-filter-btn:not(.active):hover{background-color:#ECEEE8;color:#0F172A}

/* ===== PAGE: endnote-source-role-review ===== */
.endnote-review-block .js-role-btn.active { background-color: #0F2137; color: #FFFFFF; border-color: #0F2137; } .endnote-review-block code { background-color: #ECEEE8; color: #0F2137; padding: 2px 5px; border-radius: 4px; font-family: 'JetBrains Mono', monospace; font-size: 0.85em; }

/* ===== PAGE: contact ===== */
.contact-section .contact-input {
  background-color: #FBFBF9;
  color: #0F172A;
  border-color: #CBD5E1;
}
.contact-section .contact-input::placeholder {
  color: #94A3B8;
  opacity: 1;
}
.contact-section .contact-input:focus {
  background-color: #FFFFFF;
  border-color: #0F2137;
}

/* ===== PAGE: privacy ===== */
.privacy-policy-view { font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif; }
.privacy-policy-view h1, .privacy-policy-view h2, .privacy-policy-view h3 { font-family: 'Newsreader', Georgia, serif; }
.privacy-policy-view .js-privacy-link.is-active { background-color: #0F2137; color: #FFFFFF; font-weight: 600; }
.privacy-policy-view .js-privacy-link.is-active span { color: #FBD38D; }

/* ===== PAGE: terms ===== */
.terms-content-section{font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,sans-serif}.terms-content-section h1,.terms-content-section h2,.terms-content-section h3{font-family:'Newsreader','Georgia',serif}.terms-content-section .js-toc-link.is-active{background-color:#F3F4F0;color:#0F2137;font-weight:600}.terms-content-section .js-term-block{scroll-margin-top:24px}

/* ===== PAGE: disclaimer ===== */
.disclaimer-section .js-disclaimer-item { transition: none; } .disclaimer-section input::placeholder { color: #64748B; opacity: 1; }

.academic-comment-card {
    background-color: #FFFFFF;
    border: 1px solid #E2E8F0;
    box-shadow: 0 1px 3px rgba(15, 33, 55, 0.06), 0 4px 6px -2px rgba(15, 33, 55, 0.03);
}

.comment-avatar {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    object-fit: cover;
    border-radius: 9999px;
}

.comment-author-name {
    color: #0F172A;
}

.comment-date {
    color: #64748B;
}

.comment-body {
    color: #334155;
}

.comment-badge {
    background-color: #ECEEE8;
    color: #1E293B;
    border-color: #CBD5E1;
}

.comment-action-btn {
    transition: none;
    cursor: pointer;
}

.comment-action-btn:hover {
    background-color: #F3F4F0;
    color: #0F172A;
}

.comment-cite-btn {
    transition: none;
    cursor: pointer;
}

.academic-comment-reply {
    background-color: #FBFBF9;
    border: 1px solid #E2E8F0;
}

.comment-reply-avatar {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    object-fit: cover;
    border-radius: 9999px;
}

.reply-thread-indicator {
    pointer-events: none;
}

.academic-comment-reply .comment-body {
    color: #334155;
}

.academic-comment-reply .comment-badge {
    background-color: #FEEBC8;
    color: #9C4221;
    border-color: #FBD38D;
}


/* ===== PAGE TEMPLATE: guides ===== */
.site-header-block {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.site-header-block img {
    max-width: 48px;
    max-height: 48px;
}

.site-header-block a {
    text-decoration: none;
}

.site-footer {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

.site-footer h3 {
    font-family: 'Newsreader', 'Georgia', serif;
    letter-spacing: 0.05em;
}

.site-footer a {
    text-decoration: none;
}

.site-footer a:focus-visible {
    outline: 2px solid #FBD38D;
    outline-offset: 2px;
    border-radius: 2px;
}

.guide-detail-page h1,
.guide-detail-page h2,
.guide-detail-page h3 {
    font-family: 'Newsreader', 'Georgia', serif;
}

.guide-detail-page .guide-prose-content p {
    line-height: 1.7;
}

.guide-detail-page .guide-prose-content strong {
    color: #0F172A;
    font-weight: 600;
}

.guide-detail-page .guide-prose-content em {
    font-style: italic;
    color: #2C5282;
}

.guide-detail-page .guide-prose-content ul {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.guide-detail-page .guide-prose-content ol {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    padding-left: 1.25rem;
    list-style-type: decimal;
}

.guide-detail-page .guide-prose-content ol li {
    margin-bottom: 0.35rem;
}

.guide-detail-page .js-guide-tab.active {
    background-color: #0F2137;
    color: #FFFFFF;
    border-color: #0F2137;
}

.guide-detail-page .js-faq-toggle[aria-expanded="true"] .js-faq-icon {
    transform: rotate(180deg);
}

.guide-detail-page .comment-body p {
    line-height: 1.65;
}

/* ===== PAGE TEMPLATE: courses ===== */
.site-header-block {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.site-header-block img {
    max-width: 48px;
    max-height: 48px;
}

.site-header-block a {
    text-decoration: none;
}

.site-footer {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

.site-footer h3 {
    font-family: 'Newsreader', 'Georgia', serif;
    letter-spacing: 0.05em;
}

.site-footer a {
    text-decoration: none;
}

.site-footer a:focus-visible {
    outline: 2px solid #FBD38D;
    outline-offset: 2px;
    border-radius: 2px;
}

.atlas-course-detail input::placeholder,
.atlas-course-detail textarea::placeholder {
    color: #94A3B8;
    opacity: 1;
}

.atlas-course-detail input:focus,
.atlas-course-detail textarea:focus {
    border-color: #0F2137;
}

/* ===== PAGE TEMPLATE: blog ===== */
.site-header-block {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.site-header-block img {
    max-width: 48px;
    max-height: 48px;
}

.site-header-block a {
    text-decoration: none;
}

.site-footer {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

.site-footer h3 {
    font-family: 'Newsreader', 'Georgia', serif;
    letter-spacing: 0.05em;
}

.site-footer a {
    text-decoration: none;
}

.site-footer a:focus-visible {
    outline: 2px solid #FBD38D;
    outline-offset: 2px;
    border-radius: 2px;
}

.blog-prose-content .blog-editorial-body h2 {
    color: #0F172A;
}

.blog-prose-content .blog-editorial-body h3 {
    color: #0F172A;
}

.blog-prose-content .blog-editorial-body p {
    color: #334155;
}

.comment-submission-form-container input::placeholder,
.comment-submission-form-container textarea::placeholder {
    color: #94A3B8;
    opacity: 1;
}

.academic-comment-card .comment-action-btn.is-active {
    background-color: #0F2137;
    color: #FFFFFF;
    border-color: #0F2137;
}

/* Keep the calculator chevron inside the select border on every platform. */
.js-calc-select {
    -webkit-appearance: none;
    appearance: none;
    padding-right: 2.75rem !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%230F2137' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m3 6 5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    background-size: 1rem;
}

/* Blog card metadata (date, author, comment count) stays on one row. */
.blog-card-meta {
    flex-wrap: nowrap;
    gap: 0.5rem !important;
    white-space: nowrap;
}

@media (min-width: 768px) {
    .blog-card-meta {
        font-size: 11px !important;
    }
}