:root {
    /* Light Mode Variables */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #222222;
    --text-secondary: #555555;
    --text-tertiary: #777777;
    --accent-green: #008000;
    --accent-blue: #0066cc;
    --accent-red: #cc0000;
    --accent-purple: #663399;
    --accent-gold: #FFD700;
    --border-color: #dddddd;
    --border-light: #eeeeee;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
}

.dark-mode {
    /* Dark Mode Variables */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-tertiary: #aaaaaa;
    --accent-green: #33ff33;
    --accent-blue: #66b3ff;
    --accent-red: #ff6666;
    --accent-purple: #b266ff;
    --accent-gold: #FFD700;
    --border-color: #333333;
    --border-light: #222222;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

/* CRT Effect for Dark Mode Only */
.dark-mode::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(
            to bottom,
            transparent 50%,
            rgba(0, 255, 0, 0.03) 51%
        );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.15;
    animation: scanline 10s linear infinite;
    mix-blend-mode: overlay;
}

@keyframes scanline {
    0% { transform: translateY(0px); }
    100% { transform: translateY(20px); }
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--bg-primary);
    border-bottom: 2px solid var(--border-color);
    padding: 15px 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(var(--bg-primary), 0.95);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Logo Section */
.logo-section {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.logo .version {
    color: var(--accent-green);
    font-size: 0.9rem;
}

/* Theme Controls */
.theme-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--accent-green);
    border-radius: 4px;
    padding: 8px 16px;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--accent-green);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle:hover {
    background-color: var(--accent-green);
    color: var(--bg-primary);
}

/* Navigation */
.nav-links {
    display: flex;
    gap: 25px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding: 5px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-green);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-title .accent {
    color: var(--accent-green);
}

.hero-subtitle {
    font-family: 'IBM Plex Mono', monospace;
    color: var(--accent-blue);
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-box {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    transition: all 0.3s;
    cursor: pointer;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 120px;
}

.stat-box:hover {
    border-color: var(--accent-green);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-box .stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 8px;
    font-family: 'IBM Plex Mono', monospace;
    line-height: 1.3;
}

.stat-box .stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
    min-height: 2.8em;
}

/* Estilo para estrelas nas estatísticas */
.stat-label .stars {
    color: var(--accent-gold);
    font-size: 0.85rem;
    margin: 0 2px;
}

/* Profile Window */
.profile-window {
    background: var(--bg-card);
    border: 2px solid var(--accent-green);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.window-header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--accent-green);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.window-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.window-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.window-btn:hover {
    transform: scale(1.2);
}

.btn-close { background: var(--accent-red); }
.btn-minimize { background: var(--accent-blue); }
.btn-maximize { background: var(--accent-green); }

.window-content {
    padding: 40px;
    text-align: center;
}

.profile-img-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.profile-img-placeholder:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.3);
}

.profile-info {
    margin-top: 20px;
}

.profile-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.profile-title {
    color: var(--accent-blue);
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 16px;
}

/* Sections */
.section {
    padding: 80px 0;
    border-top: 1px solid var(--border-light);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
}

/* Book Section - IMPROVED */
.book-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border: 2px solid var(--accent-gold);
    border-radius: 16px;
    padding: 60px;
    margin: 40px 0;
    box-shadow: var(--shadow-lg);
}

.book-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 50px;
    align-items: start;
}

.book-cover-container {
    position: relative;
    text-align: center;
}

.book-cover {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--accent-gold);
    transition: all 0.3s;
}

.book-cover:hover {
    transform: translateY(-10px) rotate(2deg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.book-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    justify-content: center;
}

.book-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--accent-gold);
    color: #000;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.book-link:hover {
    background: #ffed4e;
    transform: translateY(-3px);
}

.book-link.secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--accent-gold);
}

.book-link.secondary:hover {
    background: var(--accent-gold);
    color: #000;
}

.book-info h3 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    line-height: 1.2;
}

.book-author {
    color: var(--accent-blue);
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 25px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.book-author i {
    color: var(--accent-gold);
}

.book-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
    font-size: 1.05rem;
}

.book-highlight {
    background: rgba(255, 215, 0, 0.1);
    border-left: 4px solid var(--accent-gold);
    padding: 20px;
    margin: 25px 0;
    border-radius: 0 8px 8px 0;
}

.book-highlight p {
    color: var(--text-primary);
    font-style: italic;
    margin: 0;
    font-size: 1.1rem;
}

.book-stats {
    display: flex;
    gap: 40px;
    margin: 30px 0;
    padding: 25px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 5px;
}

.stat-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Amazon Reviews Section */
.reviews-section {
    margin-top: 50px;
}

.reviews-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.reviews-title i {
    color: var(--accent-gold);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s;
    position: relative;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-gold);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.reviewer {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.review-stars {
    color: var(--accent-gold);
    font-size: 0.9rem;
}

.review-date {
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-top: 5px;
}

.review-text {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.review-highlight {
    color: var(--accent-gold);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.verified-badge {
    background: var(--accent-green);
    color: white;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    display: inline-block;
    margin-left: 8px;
}

/* Course Section */
.course-card {
    background: var(--bg-card);
    border: 2px solid var(--accent-blue);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    display: flex;
    gap: 30px;
    align-items: center;
    transition: all 0.3s;
    cursor: pointer;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-green);
}

.course-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    flex-shrink: 0;
}

.course-info h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
}

.stars {
    color: var(--accent-gold);
}

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

.course-stats {
    display: flex;
    gap: 20px;
    margin-top: 15px;
}

.course-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Timelines Section */
.timelines-container {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.timeline-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.timeline-btn {
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.timeline-btn:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.timeline-btn.active {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

.timeline {
    position: relative;
    margin: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--accent-green), var(--accent-blue));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
    cursor: pointer;
    transition: all 0.3s;
}

.timeline-item:hover {
    padding-left: 50px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-green);
    border: 3px solid var(--bg-primary);
    transition: all 0.3s;
}

.timeline-item:hover::before {
    transform: scale(1.2);
    background: var(--accent-blue);
}

.timeline-year {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.timeline-content {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s;
}

.timeline-item:hover .timeline-content {
    border-color: var(--accent-green);
    box-shadow: var(--shadow-md);
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.timeline-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--accent-blue);
    text-decoration: none;
    margin-top: 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.timeline-link:hover {
    color: var(--accent-green);
    gap: 8px;
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.tech-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-family: 'IBM Plex Mono', monospace;
    transition: all 0.3s;
    cursor: pointer;
}

.tech-tag:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.timeline-duration {
    font-size: 0.85em;
    color: var(--text-tertiary);
    font-style: italic;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
}

.timeline-icon {
    position: absolute;
    left: -15px;
    top: 0;
    background: var(--bg-primary);
    border: 2px solid currentColor;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* Knowledge Timeline Specific */
.knowledge-timeline .timeline::before {
    background: linear-gradient(to bottom, var(--accent-purple), var(--accent-blue));
}

.knowledge-timeline .timeline-item::before {
    background: var(--accent-purple);
}

.knowledge-timeline .timeline-year {
    color: var(--accent-purple);
}

.knowledge-timeline .timeline-icon {
    width: 34px;
    height: 34px;
    left: -19px;
    font-size: 17px;
    background: var(--bg-primary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Cores específicas para a timeline da Agricultura */
.timeline-item[data-modal^="agri"] .timeline-icon {
    width: 32px;
    height: 32px;
    left: -18px;
    font-size: 16px;
    background: var(--bg-primary);
}

/* Cores específicas para a timeline da Sociedade */
.timeline-item[data-modal^="knowledge"] .timeline-icon {
    width: 34px;
    height: 34px;
    left: -19px;
    font-size: 17px;
    background: var(--bg-primary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Experience Grid */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.exp-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    transition: all 0.3s;
    cursor: pointer;
}

.exp-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.exp-header {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
}

.exp-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.exp-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.exp-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.exp-period {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-green);
    margin-top: 4px;
}

.exp-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Seção de experiência/resumo */
.experience-summary {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid var(--border-color);
}

.bio-text {
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.bio-text p {
    margin-bottom: 20px;
}

.achievement-list {
    margin: 20px 0 30px 20px;
    padding-left: 20px;
}

.achievement-list li {
    margin-bottom: 12px;
    padding-left: 10px;
    position: relative;
    color: var(--text-secondary);
}

.achievement-list li:before {
    content: "▸";
    color: var(--accent-blue);
    position: absolute;
    left: -15px;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 30px 0 40px;
}

.expertise-item {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-blue);
    transition: transform 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.expertise-item i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 15px;
    display: block;
}

.expertise-item h4 {
    margin: 0 0 10px 0;
    color: var(--text-primary);
}

.expertise-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--accent-green);
    color: white;
}

.btn-secondary:hover {
    background: #27ae60;
    transform: translateY(-2px);
}

/* Clickable Elements */
.clickable {
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.clickable::after {
    content: '↗';
    position: absolute;
    right: -20px;
    opacity: 0;
    transition: all 0.3s;
    color: var(--accent-green);
}

.clickable:hover::after {
    opacity: 1;
    right: -25px;
}

/* Footer */
.footer {
    border-top: 2px solid var(--accent-green);
    padding: 60px 0 40px;
    background: var(--bg-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-info {
    color: var(--text-secondary);
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 1.2rem;
}

.social-link:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-5px);
    box-shadow: var(--shadow-sm);
}

.quick-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.quick-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.quick-link:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: var(--bg-primary);
}

.copyright {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-box {
        min-height: 100px;
        padding: 15px 12px;
    }
    
    .stat-box .stat-value {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .stat-box .stat-label {
        font-size: 0.85rem;
        line-height: 1.3;
    }
    
    .book-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .book-cover {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .course-card {
        flex-direction: column;
        text-align: center;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .quick-links {
        grid-template-columns: 1fr;
    }
    
    .book-section {
        padding: 30px;
    }
    
    .book-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .book-links {
        flex-direction: column;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .window-content {
        padding: 20px;
    }
    
    .course-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .book-info h3 {
        font-size: 1.6rem;
    }
    
    .timeline-selector {
        flex-direction: column;
    }
    
    .timeline-btn {
        width: 100%;
    }
}

/* Estilos para o Checklist Interativo */
.clickable-item {
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.2s ease;
    margin-bottom: 5px;
}

.clickable-item:hover {
    background-color: rgba(67, 97, 238, 0.05);
    transform: translateX(5px);
}

.clickable-item.checked {
    background-color: rgba(40, 167, 69, 0.1);
}

.checklist-icon {
    color: var(--study-primary);
    margin-right: 12px;
    font-size: 1.2rem;
    margin-top: 2px;
    transition: all 0.3s ease;
}

.checklist-icon.checked {
    color: #28a745;
    transform: scale(1.1);
}

/* Animações */
@keyframes checkAnimation {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1.1); }
}

.check-animation {
    animation: checkAnimation 0.3s ease;
}

        .hero-gradient {
            background: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-gradient::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 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>') repeat;
            opacity: 0.3;
        }
        
        .category-card {
            transition: all 0.3s ease;
            border: 1px solid #e0e0e0;
            height: 100%;
        }
        
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: #6a11cb;
        }
        
        .category-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: #6a11cb;
        }
        
        .btn-explore {
            padding: 0.5rem 1.5rem;
            border-radius: 25px;
            font-weight: 500;
            transition: all 0.3s ease;
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
        }
        
        .btn-explore:hover {
            transform: scale(1.05);
            color: white;
            box-shadow: 0 5px 15px rgba(106, 17, 203, 0.3);
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #0078d7;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .highlight-card {
            border-left: 4px solid #28a745;
            background-color: #f8f9fa;
        }