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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --accent: #60a5fa;
    --accent-hover: #3b82f6;
    --card-bg: #1e293b;
    --border: #334155;
    --shadow: 0 10px 30px rgba(0,0,0,0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.3s ease;
}


.theme-toggle {
    position: fixed;
    top: 10px;
    right: 20px;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    font-size: 18px;
    box-shadow: var(--shadow);
}

.theme-toggle:hover, .theme-toggle:active {
    transform: scale(1.1);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 999;
    transition: all 0.3s ease;
}


.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
}

.section {
    padding: 40px 20px;
    scroll-margin-top: 80px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border-color: var(--accent);
}

.btn-secondary:hover, .btn-secondary:focus {
    background: var(--accent);
    color: white;
    transform: translateY(-2px);
}

.btn-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.btn-link:hover {
    text-decoration: underline;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
    border: 1px solid var(--border);
    opacity: 0;
    transform: translateY(20px);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.project-image img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px; 
}

.contact-item h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.contact-item p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.contact-item .btn {
    margin: 15px 0;
}

.contact-item h3:nth-of-type(2) {
    margin-top: 20px;
}

footer {
    background: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

footer p {
    color: var(--text-secondary);
}

.loading-spinner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    padding: 2rem 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    font-size: 1.2rem;
    color: var(--accent);
    border: 2px solid var(--border);
    backdrop-filter: blur(10px);
}

.loading-spinner i {
    font-size: 2.5rem;
}

.quote-section {
    margin-top: 3rem;
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 1px solid var(--border);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow);
}

.daily-quote {
    margin-top: 1.5rem;
    font-size: 1.3rem;
    font-style: italic;
    color: var(--text-secondary);
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.daily-quote blockquote {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    position: relative;
    padding-left: 2.5rem;
    line-height: 1.5;
}

.daily-quote blockquote::before {
    content: '"';
    font-size: 4rem;
    color: var(--accent);
    position: absolute;
    left: 0;
    top: -15px;
    font-family: serif;
}

.daily-quote cite {
    display: block;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--accent);
    font-size: 1.1rem;
}


.projects-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    padding: 1rem 0;
}

#project-search {
    width: 100%;
    max-width: 450px;
    padding: 15px 25px;
    border: 2px solid var(--border);
    border-radius: 50px;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--text-primary);
    transition: all 0.3s ease;
    font-family: inherit;
}

#project-search::placeholder {
    color: var(--text-secondary);
}

#project-search:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.search-feedback {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid var(--border);
}


@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 1rem;
        z-index: 998;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 80px 20px;
    }
    
    .quote-section {
        margin: 2rem 1rem;
        padding: 2rem 1.5rem;
    }
    
    .projects-header {
        margin: 0 1rem 2rem;
    }
    
    #project-search {
        max-width: 100%;
    }
}

html {
    scroll-behavior: smooth;
}

/* ANIMAÇÕES INICIAIS */
.section {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}