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

:root {
    /* Primary Colors - Inspired by modern platforms */
    --primary-color: #007AFF;
    --primary-dark: #0051D6;
    --primary-light: #5AC8FA;
    
    /* Secondary Colors */
    --secondary-color: #5856D6;
    --accent-color: #FF9500;
    --success-color: #30D158;
    --warning-color: #FFCC00;
    --error-color: #FF453A;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --black: #000000;
    --gray-50: #F2F2F7;
    --gray-100: #E5E5EA;
    --gray-200: #D1D1D6;
    --gray-300: #C7C7CC;
    --gray-400: #AEAEB2;
    --gray-500: #8E8E93;
    --gray-600: #636366;
    --gray-700: #48484A;
    --gray-800: #3A3A3C;
    --gray-900: #1C1C1E;
    
    /* Text Colors */
    --text-primary: #1C1C1E;
    --text-secondary: #8E8E93;
    --text-tertiary: #C7C7CC;
    --text-white: #FFFFFF;
    
    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F2F7;
    --bg-tertiary: #E5E5EA;
    --bg-dark: #1C1C1E;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-warm: linear-gradient(135deg, #FF9500 0%, #FF6B35 100%);
    --gradient-cool: linear-gradient(135deg, #5AC8FA 0%, #007AFF 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 64px rgba(0, 0, 0, 0.15);
    
    /* Animations */
    --animation-fast: 0.15s ease-out;
    --animation-normal: 0.3s ease-out;
    --animation-slow: 0.5s ease-out;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 72px; /* Default for desktop header height */
}

@media (max-width: 480px) {
    body {
        padding-top: 60px; /* Adjust for mobile header height */
    }
}

/* ============================================
   LOADING SCREEN
   ============================================ */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity var(--animation-slow), visibility var(--animation-slow);
}

.loading.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-4);
}

.loading-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.9;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--animation-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

.logo-sub {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--animation-fast);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--animation-normal);
    z-index: 1000;
}

.nav-dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
}

.dropdown-content a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: background-color var(--animation-fast);
}

.dropdown-content a:first-child {
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.dropdown-content a:last-child {
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.dropdown-content a:hover {
    background: var(--gray-50);
}

.dropdown-content i {
    width: 16px;
    color: var(--text-secondary);
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.search-btn,
.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--animation-fast);
}

.search-btn:hover,
.theme-toggle:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    width: 24px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
}

.mobile-menu-btn span {
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: all var(--animation-normal);
}

.mobile-menu-btn span:nth-child(2) {
    margin: 6px 0;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-8px);
}

/* ============================================
   SEARCH OVERLAY
   ============================================ */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(28, 28, 30, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--animation-normal);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    max-width: 800px;
    margin: 120px auto 0;
    padding: 0 var(--space-6);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-6);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-xl);
}

.search-icon {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    margin-right: var(--space-4);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    background: none;
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--animation-fast);
}

.search-close:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.search-suggestions {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
}

.suggestion-category h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: background-color var(--animation-fast);
}

.suggestion-item:hover {
    background: var(--gray-50);
}

.suggestion-item i {
    width: 20px;
    color: var(--text-secondary);
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 9998;
    transform: translateX(-100%);
    transition: transform var(--animation-normal);
}

.mobile-menu-overlay.active {
    transform: translateX(0);
}

.mobile-menu-content {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-100);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
}

.mobile-nav-menu {
    flex: 1;
    list-style: none;
    padding: var(--space-6) 0;
    background: var(--gray-50);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: 500;
    transition: background-color var(--animation-fast);
}

.mobile-nav-link:hover {
    background: var(--gray-50);
}

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

.mobile-dropdown-content {
    list-style: none;
    background: var(--text-white);
    margin-top: var(--space-2);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--animation-normal);
}

.mobile-dropdown.active .mobile-dropdown-content {
    max-height: 300px;
}

.mobile-dropdown-content a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-6);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: color var(--animation-fast);
}

.mobile-dropdown-content a:hover {
    color: var(--primary-color);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .hero {
        margin-bottom: 0 !important;
        padding-bottom: 0 !important;
    }
    .banner-carousel {
        margin-bottom: 0 !important;
    }
    section.features {
        margin-top: -180px !important;
        padding-top: 0 !important;
    }
    .section-header {
        margin-top: 0 !important;
        padding-top: 0 !important;
    }
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-container {
        padding: 0 var(--space-4);
    }
    
    .logo-text {
        display: none;
    }
    
    .search-container {
        margin-top: 80px;
        padding: 0 var(--space-4);
    }
}

@media (max-width: 480px) {
    .header {
        height: 60px;
    }
    
    .nav-container {
        padding: 0 var(--space-3);
    }
    
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
}

/*-----------NOVAS PARA LIÇOES---------------*/
    :root {
        --primary-color: #2563eb;
        --primary-dark: #1d4ed8;
        --primary-light: #3b82f6;
        --secondary-color: #64748b;
        --accent-color: #f59e0b;
        --success-color: #10b981;
        --white: #ffffff;
        --gray-50: #f8fafc;
        --gray-100: #f1f5f9;
        --gray-200: #e2e8f0;
        --gray-300: #cbd5e1;
        --gray-400: #94a3b8;
        --gray-500: #64748b;
        --gray-600: #475569;
        --gray-700: #334155;
        --gray-800: #1e293b;
        --gray-900: #0f172a;
        --text-primary: #0f172a;
        --text-secondary: #64748b;
        --bg-primary: #ffffff;
        --bg-secondary: #f8fafc;
        --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
        --gradient-subtle: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        --radius-sm: 0.375rem;
        --radius-md: 0.5rem;
        --radius-lg: 0.75rem;
        --radius-xl: 1rem;
        --radius-2xl: 1.5rem;
        --space-1: 0.25rem;
        --space-2: 0.5rem;
        --space-3: 0.75rem;
        --space-4: 1rem;
        --space-5: 1.25rem;
        --space-6: 1.5rem;
        --space-8: 2rem;
        --space-10: 2.5rem;
        --space-12: 3rem;
        --space-16: 4rem;
        --space-20: 5rem;
        --space-24: 6rem;
    }

    body {
        font-family: var(--font-family);
        font-size: var(--font-size-base);
        line-height: 1.6;
        color: var(--text-primary);
        background: var(--bg-primary);
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 var(--space-6);
    }

    /* Page Header */
    .page-header {
        background: var(--gradient-primary);
        padding: var(--space-24) 0 var(--space-16);
        color: var(--white);
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .page-header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.08"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23a)"/><circle cx="800" cy="300" r="200" fill="url(%23a)"/><circle cx="400" cy="700" r="180" fill="url(%23a)"/></svg>');
        background-size: cover;
    }

    .page-header-content {
        position: relative;
        z-index: 1;
    }

    .page-title {
        font-size: 3.5rem;
        font-weight: 800;
        margin-bottom: var(--space-4);
        letter-spacing: -0.02em;
    }

    .page-description {
        font-size: 1.25rem;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto;
        font-weight: 400;
    }

    /* Current Lesson Section */
    .current-lesson-section {
        padding: var(--space-20) 0;
    }

    .section-header {
        text-align: center;
        margin-bottom: var(--space-12);
    }

    .section-title {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: var(--space-4);
        color: var(--text-primary);
        letter-spacing: -0.01em;
    }

    .section-subtitle {
        font-size: 1.125rem;
        color: var(--text-secondary);
        max-width: 600px;
        margin: 0 auto;
    }

    /* Featured Lesson Card - Layout Profissional */
    .featured-lesson-card {
        background: var(--white);
        border-radius: var(--radius-2xl);
        box-shadow: var(--shadow-xl);
        overflow: hidden;
        transition: all 0.3s ease;
        border: 1px solid var(--gray-100);
    }

    .featured-lesson-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    }

    .lesson-header {
        position: relative;
        background: var(--gradient-subtle);
        padding: var(--space-8);
        display: flex;
        align-items: flex-start;
        gap: var(--space-6);
    }

    .lesson-cover-mini {
        width: 120px;
        height: 160px;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        flex-shrink: 0;
        position: relative;
    }

    .lesson-cover-mini img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }

    .featured-lesson-card:hover .lesson-cover-mini img {
        transform: scale(1.05);
    }

    .lesson-header-content {
        flex: 1;
        padding-top: var(--space-2);
    }

    .lesson-theme {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        background: var(--primary-color);
        color: var(--white);
        padding: var(--space-2) var(--space-4);
        border-radius: var(--radius-md);
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: var(--space-4);
    }

    .lesson-title {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--space-3);
        line-height: 1.2;
        letter-spacing: -0.01em;
    }

    .lesson-meta-header {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-6);
        margin-bottom: var(--space-2);
    }

    .lesson-meta-header span {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        font-size: 0.875rem;
        color: var(--text-secondary);
        font-weight: 500;
    }

    .lesson-meta-header i {
        color: var(--primary-color);
        width: 16px;
    }

    .lesson-content {
        padding: var(--space-8);
        padding-top: 0;
    }

    /* Read More/Less Functionality */
    .lesson-description {
        margin-bottom: var(--space-8);
    }

    .description-text {
        font-size: 1rem;
        color: var(--text-secondary);
        line-height: 1.7;
        transition: all 0.4s ease;
        overflow: hidden;
    }

    .description-text.collapsed {
        max-height: 4.2em;
        position: relative;
    }

    .description-text.collapsed::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 1.4em;
        background: linear-gradient(to bottom, transparent, var(--white));
        pointer-events: none;
    }

    .read-more-btn {
        background: none;
        border: none;
        color: var(--primary-color);
        font-size: 0.875rem;
        font-weight: 600;
        cursor: pointer;
        padding: var(--space-3) 0;
        display: flex;
        align-items: center;
        gap: var(--space-2);
        transition: all 0.2s ease;
        margin-top: var(--space-3);
    }

    .read-more-btn:hover {
        color: var(--primary-dark);
        transform: translateY(3px);
    }

    .read-more-btn i {
        font-size: 11px;
        transition: transform 0.3s ease;
    }

    .read-more-btn.expanded i {
        transform: rotate(180deg);
    }

    .lesson-actions {
        display: flex;
        gap: var(--space-4);
        flex-wrap: wrap;
        padding-top: var(--space-6);
        border-top: 1px solid var(--gray-100);
    }

    /* Buttons */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        padding: var(--space-4) var(--space-6);
        border-radius: var(--radius-lg);
        font-size: 0.875rem;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.2s ease;
        border: none;
        cursor: pointer;
        position: relative;
        overflow: hidden;
    }

    .btn-primary {
        background: var(--primary-color);
        color: var(--white);
        box-shadow: var(--shadow-md);
    }

    .btn-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
        transition: left 0.5s ease;
    }

    .btn-primary:hover::before {
        left: 100%;
    }

    .btn-primary:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }

    .btn-outline {
        background: transparent;
        color: var(--primary-color);
        border: 2px solid var(--gray-200);
    }

    .btn-outline:hover {
        background: var(--primary-color);
        color: var(--white);
        border-color: var(--primary-color);
        transform: translateY(-2px);
    }

    /* Previous Lessons Section */
    .previous-lessons-section {
        padding: var(--space-20) 0;
        background: var(--bg-secondary);
        border-radius: var(--radius-2xl);
        margin-top: var(--space-16);
    }

    .lessons-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--space-6);
    }

    .lesson-card {
        background: var(--white);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-md);
        overflow: hidden;
        transition: all 0.3s ease;
        border: 1px solid var(--gray-100);
    }

    .lesson-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-xl);
    }

    .lesson-card-cover {
        height: 140px; /* Reduzido ainda mais */
        overflow: hidden;
        position: relative;
    }

    .lesson-card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }

    .lesson-card:hover .lesson-card-cover img {
        transform: scale(1.1);
    }

    .lesson-card-info {
        padding: var(--space-6);
    }

    .lesson-card-info h4 {
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: var(--space-2);
    }

    .lesson-card-info p {
        font-size: 0.875rem;
        color: var(--text-secondary);
        margin-bottom: var(--space-4);
        line-height: 1.5;
    }

    .lesson-card-info a {
        color: var(--primary-color);
        text-decoration: none;
        font-weight: 600;
        font-size: 0.875rem;
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        transition: all 0.2s ease;
    }

    .lesson-card-info a:hover {
        color: var(--primary-dark);
        transform: translateY(2px);
    }

    /* Resources Section */
    .additional-resources-section {
        padding: var(--space-20) 0;
        margin-top: var(--space-16);
    }

    .resource-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--space-6);
    }

    .resource-card {
        background: var(--white);
        padding: var(--space-8);
        border-radius: var(--radius-xl);
        text-decoration: none;
        transition: all 0.3s ease;
        display: flex;
        align-items: flex-start;
        gap: var(--space-4);
        box-shadow: var(--shadow-md);
        border: 1px solid var(--gray-100);
        position: relative;
        overflow: hidden;
    }

    .resource-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: var(--gradient-primary);
        transform: scaleY(0);
        transition: transform 0.3s ease;
    }

    .resource-card:hover::before {
        transform: scaleY(1);
    }

    .resource-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-xl);
        border-color: var(--primary-color);
    }

    .resource-icon {
        width: 56px;
        height: 56px;
        background: var(--gradient-primary);
        border-radius: var(--radius-lg);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white);
        font-size: 1.25rem;
        flex-shrink: 0;
        box-shadow: var(--shadow-md);
    }

    .resource-info h3 {
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: var(--space-2);
    }

    .resource-info p {
        font-size: 0.875rem;
        color: var(--text-secondary);
        line-height: 1.5;
    }

    /* Versão alternativa com imagem no topo */
    .featured-lesson-alt {
        background: var(--white);
        border-radius: var(--radius-2xl);
        box-shadow: var(--shadow-xl);
        overflow: hidden;
        transition: all 0.3s ease;
        border: 1px solid var(--gray-100);
    }

    .lesson-cover-top {
        height: 200px;
        width: 100%;
        overflow: hidden;
        position: relative;
        background: var(--gradient-primary);
    }

    .lesson-cover-top img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }

    .featured-lesson-alt:hover .lesson-cover-top img {
        transform: scale(1.05);
    }

    .lesson-badge {
        position: absolute;
        top: var(--space-4);
        left: var(--space-4);
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        padding: var(--space-2) var(--space-4);
        border-radius: var(--radius-md);
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--primary-color);
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .lesson-content-alt {
        padding: var(--space-8);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .container {
            padding: 0 var(--space-4);
        }

        .lesson-header {
            flex-direction: column;
            text-align: center;
            gap: var(--space-4);
        }

        .lesson-cover-mini {
            width: 100px;
            height: 130px;
            align-self: center;
        }

        .lesson-actions {
            flex-direction: column;
        }

        .resource-card {
            flex-direction: column;
            text-align: center;
        }

        .page-title {
            font-size: 2.5rem;
        }

        .section-title {
            font-size: 2rem;
        }

        .lesson-card-cover {
            height: 120px;
        }
    }

    @media (max-width: 480px) {
        .page-header {
            padding: var(--space-16) 0 var(--space-12);
        }

        .current-lesson-section {
            padding: var(--space-12) 0;
        }

        .lesson-header {
            padding: var(--space-6);
        }

        .lesson-cover-mini {
            width: 80px;
            height: 100px;
        }

        .lesson-title {
            font-size: 1.5rem;
        }

        .lesson-card-cover {
            height: 100px;
        }
    }

/* Custom Styles */
.disabled-link {
    pointer-events: none; /* Disable click events */
    opacity: 0.6; /* Make it look disabled */
    cursor: not-allowed; /* Change cursor to indicate it's not clickable */
    text-decoration: none; /* Ensure no underline */
    color: var(--gray-500); /* Use a gray color from existing variables */
}

.disabled-link:hover {
    transform: none; /* Remove hover transform */
    color: var(--gray-500); /* Keep color consistent on hover */
}

/* Filter Section */
.filter-section {
    padding: var(--space-12) 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--gray-100);
}

.lesson-filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    align-items: flex-end;
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.form-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 180px; /* Minimum width for form groups */
}

.form-group label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    font-weight: 500;
}

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--gray-50);
    transition: all 0.2s ease;
    -webkit-appearance: none; /* Remove default browser styling for select */
    -moz-appearance: none;
    appearance: none;
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2); /* Assuming primary-color-rgb is defined or can be derived */
    background-color: var(--white);
}

.form-group select {
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%20viewBox%3D%220%200%20292.4%20292.4%22%3E%3Cpath%20fill%3D%22%2364748b%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13.2-6.4H18.6c-5%200-9.3%201.8-13.2%206.4-3.9%204.6-5.9%2010.1-5.9%2016.1s2%2011.5%205.9%2016.1l128%20128c3.9%204.6%209.3%206.4%2013.2%206.4s9.3-1.8%2013.2-6.4l128-128c3.9-4.6%205.9-10.1%205.9-16.1s-2-11.5-5.9-16.1z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 0.8em;
    padding-right: var(--space-8); /* Make space for the arrow */
}

.lesson-filter-form .btn {
    margin-top: var(--space-6); /* Align buttons with form fields */
    flex-shrink: 0; /* Prevent buttons from shrinking */
}

/* Responsive adjustments for filter form */
@media (max-width: 768px) {
    .lesson-filter-form {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group {
        min-width: unset; /* Remove min-width on smaller screens */
        width: 100%;
    }

    .lesson-filter-form .btn {
        width: 100%;
        margin-top: var(--space-4);
    }
}

/* News Specific Styles */
.news-section {
    padding: 40px 0;
}

.news-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}

/* Filtros */
.news-filters {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    position: relative;
    min-width: 200px;
}

.filter-group i {
    position: absolute;
    left: 12px;
    color: var(--gray-500);
    z-index: 2;
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 12px 12px 12px 35px;
    border: 2px solid var(--gray-200);
    border-radius: 25px;
    background: var(--gray-50);
    font-size: 14px;
    transition: all 0.3s ease;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1); /* Using primary-color RGB directly for now */
}

.search-group {
    flex: 1;
    min-width: 300px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 122, 255, 0.4); /* Using primary-color RGB directly for now */
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

.clear-filters {
    background: var(--error-color);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 12px;
}

/* Results Info */
.results-info {
    background: linear-gradient(135deg, #e3f2fd, #f3e5f5); /* Specific gradient, keep as is for now */
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    text-align: center;
    color: #1565c0; /* Specific color, keep as is for now */
    border: 1px solid #bbdefb; /* Specific color, keep as is for now */
}

/* Featured News */
.featured-news-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 40px;
    transition: all 0.3s ease;
    position: relative;
}

.featured-news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.featured-news-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.featured-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.featured-news-card:hover .featured-news-image img {
    transform: scale(1.05);
}

.featured-news-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--gradient-warm);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    z-index: 2;
}

.featured-news-content {
    padding: 30px;
}

.news-category {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.news-category:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 122, 255, 0.3); /* Using primary-color RGB directly for now */
}

.featured-news-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
}

.featured-news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.featured-news-title a:hover {
    color: var(--primary-color);
}

.news-excerpt {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.news-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-card:hover .news-card-image img {
    transform: scale(1.05);
}

.news-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    flex: 1;
}

.news-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-card-title a:hover {
    color: var(--primary-color);
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: auto;
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.news-meta i {
    color: var(--primary-color);
}

/* Sidebar */
.news-sidebar {
    position: sticky;
    top: 20px;
}

.sidebar-widget {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-bottom: 25px;
}

.widget-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gray-100);
    position: relative;
}

.widget-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--gradient-primary);
}

/* Search Widget */
.search-widget-form {
    display: flex;
    position: relative;
}

.search-widget-form input {
    flex: 1;
    padding: 12px 50px 12px 15px;
    border: 2px solid var(--gray-200);
    border-radius: 25px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-widget-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1); /* Using primary-color RGB directly for now */
}

.search-widget-form button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-widget-form button:hover {
    transform: translateY(-50%) scale(1.1);
}

/* Category List */
.category-list {
    list-style: none;
}

.category-list li {
    margin-bottom: 8px;
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.category-list a:hover {
    background: var(--gray-50);
    color: var(--primary-color);
    transform: translateX(5px);
}

.category-list span {
    background: var(--gray-200);
    color: var(--gray-700);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: bold;
}

/* Recent Posts */
.recent-posts-list {
    list-style: none;
}

.recent-posts-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-100);
}

.recent-posts-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.recent-posts-list a {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.recent-posts-list a:hover {
    color: var(--primary-color);
}

.recent-posts-list img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.post-info h5 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 5px;
    line-height: 1.3;
}

.post-info span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    border: 2px solid var(--gray-200);
    border-radius: 50%;
    font-weight: 600;
    transition: all 0.3s ease;
}

.page-link:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.page-link.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.page-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.no-results i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: 20px;
}

.no-results h3 {
    color: var(--gray-700);
    margin-bottom: 10px;
}

/* Single News Section */
.single-news-section {
    padding: 40px 0;
}

/* Article Styles */
.single-news-article {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 30px;
}

.article-header {
    padding: 30px 30px 20px;
}

.article-category {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.article-category:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(0, 122, 255, 0.3); /* Using primary-color RGB directly for now */
}

.article-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 700;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding-bottom: 20px;
    border-bottom: 2px solid var(--gray-100);
    margin-bottom: 25px;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-meta i {
    color: var(--primary-color);
}

.reading-time {
    background: #e8f4fd; /* Specific color, keep as is for now */
    color: #0d47a1; /* Specific color, keep as is for now */
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
}

.article-image {
    margin-bottom: 30px;
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.article-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-image:hover img {
    transform: scale(1.02);
}

.article-content {
    padding: 0 30px 30px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-800);
}

.article-content p {
    margin-bottom: 1.2em;
}

.article-content h2,
.article-content h3,
.article-content h4 {
    margin: 1.5em 0 0.8em;
    color: var(--text-primary);
}

.article-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    margin: 20px 0;
    font-style: italic;
    background: var(--gray-50);
    padding: 15px 20px;
    border-radius: 0 8px 8px 0;
}

/* Social Sharing */
.social-sharing {
    background: var(--white);
    padding: 25px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

.social-sharing h4 {
    margin-bottom: 15px;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.social-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    color: var(--white);
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.social-btn.facebook {
    background: #3b5998;
}

.social-btn.twitter {
    background: #1da1f2;
}

.social-btn.whatsapp {
    background: #25d366;
}

.social-btn.email {
    background: var(--gray-600);
}

.social-btn.copy {
    background: var(--gray-500);
}

/* Navigation */
.article-navigation {
    background: var(--white);
    padding: 25px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

.nav-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--gray-50);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.nav-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-btn.next {
    text-align: right;
    flex-direction: row-reverse;
}

.nav-btn i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.nav-btn:hover i {
    color: var(--white);
}

.nav-text {
    flex: 1;
}

.nav-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: bold;
    margin-bottom: 5px;
}

.nav-btn:hover .nav-label {
    color: rgba(255, 255, 255, 0.8);
}

.nav-title {
    font-weight: 600;
    line-height: 1.3;
}

/* Back to News */
.back-to-news {
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 122, 255, 0.4); /* Using primary-color RGB directly for now */
    color: var(--white);
}

/* Related News */
.related-news {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

.related-news h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gray-100);
    position: relative;
}

.related-news h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--gradient-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.related-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--gray-100);
}

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.related-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.related-content {
    padding: 15px;
    flex: 1;
}

.related-title {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.related-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Responsive */
@media (max-width: 992px) {
    .news-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .news-sidebar {
    
    .sidebar-widget {
        width: 100%;
        margin-right: 0;
        display: block;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .news-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        min-width: auto;
    }
    
    .search-group {
        min-width: auto;
    }
    
    .featured-news-title {
        font-size: 1.8rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar-widget {
        width: 100%;
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-content {
        font-size: 1rem;
        padding: 0 20px 20px;
    }
    
    .article-header {
        padding: 20px 20px 15px;
    }
    
    .social-sharing,
    .article-navigation {
        padding: 20px;
    }
    
    .nav-buttons {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .page-header {
        padding: 40px 0;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-description {
        font-size: 1rem;
    }
    
    .featured-news-content {
        padding: 20px;
    }
    
    .featured-news-title {
        font-size: 1.5rem;
    }
    
    .article-title {
        font-size: 1.6rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* Print Styles */
@media print {
    .news-sidebar,
    .social-sharing,
    .article-navigation,
    .back-to-news {
        display: none;
    }
    
    .news-layout {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        font-size: 12pt;
        line-height: 1.5;
    }
} 

/* Events Filter Tabs */
.events-filters-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.filter-tab {
    display: inline-flex;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    color: var(--text-secondary);
    background: var(--gray-100);
    transition: all var(--animation-fast);
    border: 1px solid transparent;
}

.filter-tab:hover {
    color: var(--primary-color);
    background: var(--gray-200);
}

.filter-tab.active {
    color: var(--white);
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.filter-tab.active:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

@media (max-width: 768px) {
    .events-filters-tabs {
        gap: var(--space-3);
        margin-bottom: var(--space-6);
    }

    .filter-tab {
        padding: var(--space-2) var(--space-4);
        font-size: var(--font-size-sm);
    }
}