/* 
   beogradskajezera.com - Tipografski sistem i stilovi
   Tema: Beogradski Plavi Tokovi (Belgrade Blue Waters)
   Svetla tema, čist dizajn bez slika, fokusiran na prefinjenu tipografiju i detalje.
*/

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-page: #f4f8fa;           /* Nežni plavi ton vode */
    --bg-card: #ffffff;
    --text-main: #1e293b;          /* Slate 800 za optimalan kontrast */
    --text-muted: #64748b;         /* Slate 500 */
    
    --accent-blue: #0284c7;        /* Nebesko/rečna plava */
    --accent-blue-hover: #0369a1;
    
    --accent-teal: #0f766e;        /* Duboki teal za jezerske dubine */
    --accent-teal-hover: #115e59;
    
    --accent-light-blue: #f0f9ff;
    --accent-light-teal: #f0fdfa;
    
    --border-color: #cbd5e1;
    --border-light: #e2e8f0;
    
    --shadow-subtle: 0 4px 15px rgba(2, 132, 199, 0.02);
    --shadow-medium: 0 8px 25px rgba(15, 118, 110, 0.04);
    
    --font-serif: 'Lora', Georgia, serif;
    --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
    --max-width: 1100px;
    --text-width: 740px;
}

/* Reset i bazični stilovi */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent-teal);
    text-decoration: none;
    transition: all 0.25s ease;
}

a:hover {
    color: var(--accent-blue);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.3;
    color: var(--accent-teal);
    text-wrap: balance; /* Izbalansirani krajevi redova za naslove */
}

/* Layout i kontejneri */
.site-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
}

/* Zaglavlje */
.header-academic {
    background-color: var(--bg-card);
    border-bottom: 3px double var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.015);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-box {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-seal {
    font-size: 1.75rem;
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-light-blue);
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.brand-titles h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    font-family: var(--font-sans);
    line-height: 1.1;
    color: var(--accent-teal);
}

.brand-titles p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-family: var(--font-serif);
    font-style: italic;
    margin-top: 0.15rem;
}

/* Navigacija */
.nav-academic-wrap {
    display: flex;
    align-items: center;
}

.nav-academic ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-academic a {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-muted);
    padding: 0.5rem 0.25rem;
    border-bottom: 2px solid transparent;
}

.nav-academic a:hover,
.nav-academic a.active {
    color: var(--accent-teal);
    border-bottom-color: var(--accent-blue);
}

/* Mobilni meni dugme */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--accent-teal);
    cursor: pointer;
    padding: 0.5rem;
}

/* Hero sekcija */
.hero-academic-section {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    padding: 4.5rem 1.5rem;
    text-align: center;
}

.hero-academic-container {
    max-width: 800px;
    margin: 0 auto;
}

.hero-seal {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-light-blue);
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

.hero-academic-container h2 {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
    color: var(--accent-teal);
}

.hero-lead {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Kategorije i Grids */
.explore-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.section-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-blue);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-subtle);
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color);
    box-shadow: var(--shadow-medium);
}

.category-icon {
    font-size: 2.25rem;
    color: var(--accent-blue);
    margin-bottom: 1.25rem;
}

.category-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: var(--accent-teal);
}

.category-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    line-height: 1.6;
}

.btn-academic {
    display: inline-block;
    align-self: flex-start;
    padding: 0.6rem 1.5rem;
    background-color: var(--accent-teal);
    color: #ffffff;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: 4px;
    transition: background-color 0.25s ease;
}

.btn-academic:hover {
    background-color: var(--accent-teal-hover);
    color: #ffffff;
}

/* Najnoviji članci i liste */
.recent-articles-section {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    padding: 4rem 1.5rem;
}

.recent-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.articles-list-rows {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.articles-grid-twocol {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 2rem;
}

.articles-grid-twocol .article-row-item {
    border-bottom: none;
    padding-bottom: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 2rem;
    box-shadow: var(--shadow-subtle);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.articles-grid-twocol .article-row-item:hover {
    transform: translateY(-2px);
    border-color: var(--border-color);
    box-shadow: var(--shadow-medium);
}

@media (max-width: 768px) {
    .articles-grid-twocol {
        grid-template-columns: 1fr;
    }
}

.article-row-item {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 2rem;
    display: flex;
    flex-direction: column;
}

.article-row-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.article-row-meta {
    font-size: 0.8125rem;
    font-family: var(--font-sans);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem 0.75rem;
}

.article-row-meta span {
    white-space: nowrap;
}

.category-tag {
    font-weight: 600;
    color: var(--accent-blue);
}

.article-row-item h3 {
    font-size: 1.6rem;
    margin-bottom: 0.75rem;
}

.article-row-item h3 a {
    color: var(--text-main);
}

.article-row-item h3 a:hover {
    color: var(--accent-teal);
}

.article-row-excerpt {
    font-family: var(--font-serif);
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.read-more-link {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--accent-teal);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

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

/* Individualni Članak Layout */
.article-academic-layout {
    max-width: var(--max-width);
    margin: 3rem auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3.5rem;
}

.article-main-body {
    max-width: var(--text-width);
}

.article-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.75rem;
    margin-bottom: 2.25rem;
}

.article-category-badge {
    display: inline-block;
    padding: 0.35rem 0.95rem;
    font-size: 0.725rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-radius: 20px;
    margin-bottom: 1.25rem;
    color: #ffffff !important;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.category-jezera {
    background-color: var(--accent-teal);
}

.category-jezera:hover {
    background-color: var(--accent-teal-hover);
}

.category-reke-i-potoci {
    background-color: var(--accent-blue);
}

.category-reke-i-potoci:hover {
    background-color: var(--accent-blue-hover);
}

.category-istorija-i-zanimljivosti {
    background-color: #b45309;
}

.category-istorija-i-zanimljivosti:hover {
    background-color: #92400e;
}

.article-header h1 {
    font-size: 2.35rem;
    margin-bottom: 1rem;
    line-height: 1.25;
}

.article-meta-info {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    gap: 1.5rem;
}

.article-meta-info span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Tipografija Sadržaja Članka */
.article-text-content {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    line-height: 1.85;
    color: var(--text-main);
}

.article-text-content p, 
.article-text-content blockquote, 
.article-text-content li {
    text-wrap: pretty; /* Sprečava "runt-ove" na kraju redova */
}

.article-text-content p {
    margin-bottom: 1.75rem;
}

.article-text-content h2 {
    font-size: 1.75rem;
    margin: 3.5rem 0 1rem 0;
    color: var(--accent-teal);
}

.article-text-content h3 {
    font-size: 1.35rem;
    margin: 3rem 0 0.85rem 0;
    color: var(--accent-blue);
}

.article-text-content h4 {
    font-size: 1.15rem;
    margin: 2.25rem 0 0.75rem 0;
    color: var(--text-main);
}

.article-text-content blockquote {
    border-left: 4px solid var(--accent-blue);
    padding: 1rem 0 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    background-color: var(--accent-light-blue);
    color: var(--text-muted);
}

.article-text-content blockquote p {
    margin-bottom: 0;
}

.article-text-content blockquote cite {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--accent-teal);
    margin-top: 0.5rem;
}

.article-text-content ul, 
.article-text-content ol {
    margin: 0 0 2rem 1.5rem;
}

.article-text-content li {
    margin-bottom: 0.5rem;
}

/* Tabele u Markdown */
.table-container {
    width: 100%;
    overflow-x: auto;
    margin: 2.5rem 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    text-align: left;
}

th, td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

th {
    background-color: var(--bg-page);
    font-weight: 600;
    color: var(--accent-teal);
    border-bottom: 2px solid var(--border-color);
}

tr:last-child td {
    border-bottom: none;
}

/* Alert Boxes / Napomene i Saveti */
.alert-box {
    margin: 2.5rem 0;
    padding: 1.5rem;
    border-left: 4px solid transparent;
    border-radius: 0 4px 4px 0;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.6;
}

.alert-box p {
    margin-bottom: 0;
}

.alert-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.note-alert {
    background-color: var(--accent-light-blue);
    border-left-color: var(--accent-blue);
    color: var(--text-main);
}

.note-alert .alert-title {
    color: var(--accent-blue-hover);
}

.tip-alert {
    background-color: var(--accent-light-teal);
    border-left-color: var(--accent-teal);
    color: var(--text-main);
}

.tip-alert .alert-title {
    color: var(--accent-teal-hover);
}

/* Fusnote */
.content-divider {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 3.5rem 0 2rem 0;
}

.footnote-ref a {
    font-weight: 600;
    padding: 0 0.15rem;
}

.footnotes {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 3.5rem;
}

.footnotes-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footnotes ol {
    margin-left: 1.25rem;
}

.footnotes li {
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.footnotes li p {
    display: inline;
    margin-bottom: 0;
}

.footnotes .backlink {
    color: var(--accent-blue);
    font-weight: bold;
    margin-left: 0.25rem;
}

/* Bočni vidžet (Sidebar) */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.sidebar-widget {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 1.75rem;
    box-shadow: var(--shadow-subtle);
}

.sidebar-widget h4 {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-widget ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sidebar-widget li {
    font-size: 0.875rem;
    line-height: 1.5;
}

.sidebar-widget li a {
    color: var(--text-main);
    font-family: var(--font-serif);
    font-weight: 500;
}

.sidebar-widget li a:hover {
    color: var(--accent-blue);
}

.bullets-widget-list li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--text-muted);
    font-family: var(--font-sans);
}

.bullets-widget-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 0.75rem;
    color: var(--accent-blue);
    position: absolute;
    left: 0;
    top: 0.2rem;
}

/* Footer i Podrška */
.footer-academic {
    background-color: var(--bg-card);
    border-top: 3px double var(--border-color);
    padding: 4rem 1.5rem 2rem 1.5rem;
    font-family: var(--font-sans);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand-column h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand-column p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 650px;
}

.footer-links-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.footer-links-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links-column a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-links-column a:hover {
    color: var(--accent-teal);
    padding-left: 0.25rem;
}

.footer-support-section {
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.footer-support-section h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.footer-partners-grid a {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 0.25rem;
}

.footer-partners-grid a::before {
    content: "\f0c1";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 0.7rem;
    color: var(--accent-blue);
}

.footer-partners-grid a:hover {
    color: var(--accent-teal);
    border-bottom-style: solid;
    border-bottom-color: var(--accent-teal);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Mobilna navigacija i prilagođavanja */
@media (max-width: 900px) {
    .article-academic-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .article-sidebar {
        order: 2;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 600px) {
    .header-container {
        padding: 0.75rem 1rem;
    }
    
    .brand-seal {
        width: 2.75rem;
        height: 2.75rem;
        font-size: 1.5rem;
    }
    
    .brand-titles h1 {
        font-size: 1.25rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-academic-wrap {
        display: none;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--bg-card);
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
        padding: 1.5rem;
    }
    
    .nav-academic-wrap.open {
        display: block;
    }
    
    .nav-academic ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-academic a {
        display: block;
        padding: 0.5rem 0;
    }
    
    .hero-academic-section {
        padding: 3rem 1rem;
    }
    
    .hero-academic-container h2 {
        font-size: 1.75rem;
    }
    
    .hero-lead {
        font-size: 1rem;
    }
    
    .article-header h1 {
        font-size: 1.85rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}