/* Reset e Variáveis */
:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #64748b;
    --gray-light: #e2e8f0;
    --success-color: #10b981;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

/* Tipografia */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.8rem;
}

p {
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Seções */
.section {
    padding: 5rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header & Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: white;
    box-shadow: var(--box-shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
    transition: var(--transition);
}

.hamburger:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 2rem 5rem;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    gap: 3rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--gray-color);
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-location i {
    color: var(--primary-color);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.8s both;
}

.hero-contact-info {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    animation: fadeInUp 1s ease 1s both;
}

.hero-contact-info p {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
    font-size: 1.05rem;
}

.hero-contact-info i {
    color: var(--primary-color);
    width: 20px;
    font-size: 1.1rem;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::after {
    width: 300px;
    height: 300px;
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.1);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease;
}

.profile-placeholder {
    width: 350px;
    height: 350px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 5rem;
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.profile-placeholder:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.3);
}

.profile-placeholder::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

.profile-placeholder p {
    font-size: 1.2rem;
    margin-top: 1rem;
    z-index: 1;
    text-align: center;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-color);
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.info-card h3 {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.2rem;
    color: var(--primary-color);
    font-size: 1.4rem;
}

.info-card p {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.info-detail {
    color: var(--gray-color);
    font-size: 0.95rem;
    font-style: italic;
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.skills-category {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
}

.skills-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.skills-category h3 {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.8rem;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background: var(--gray-light);
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark-color);
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: default;
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-color);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.project-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--gray-light);
    position: relative;
    overflow: hidden;
}

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

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.8rem;
}

.project-card h3 {
    margin-bottom: 1.2rem;
    color: var(--dark-color);
    font-size: 1.6rem;
}

.project-card p {
    color: var(--gray-color);
    margin-bottom: 2rem;
    flex-grow: 1;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-bottom: 2rem;
}

.project-tech span {
    background: var(--gray-light);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
}

.project-card:hover .project-tech span {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 1.05rem;
}

.project-link:hover {
    gap: 1rem;
    color: var(--secondary-color);
}

.projects-more {
    text-align: center;
    margin-top: 3rem;
}

/* Experience Section */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3rem;
}

.timeline-date {
    position: absolute;
    left: 0;
    top: 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    min-width: 140px;
    text-align: center;
    box-shadow: var(--box-shadow);
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
    position: relative;
}

.timeline-content:hover {
    transform: translateX(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 30px;
    width: 30px;
    height: 30px;
    background: white;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 0 5px white;
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.6rem;
}

.timeline-role {
    color: var(--gray-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.timeline-content p {
    color: var(--dark-color);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.timeline-content ul {
    list-style-position: inside;
    margin-top: 1rem;
    padding-left: 1rem;
}

.timeline-content li {
    margin-bottom: 0.8rem;
    color: var(--gray-color);
    position: relative;
    padding-left: 1.5rem;
}

.timeline-content li::before {
    content: '▸';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
}

.contact-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    width: 60px;
    height: 60px;
    background: var(--gray-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.contact-item:hover i {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.contact-item div {
    flex-grow: 1;
}

.contact-item h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.contact-item p {
    color: var(--gray-color);
    margin-bottom: 0.5rem;
}

.whatsapp-link, .email-link, .github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    font-size: 0.95rem;
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
    font-weight: 500;
}

.whatsapp-link:hover, .email-link:hover, .github-link:hover {
    color: var(--secondary-color);
    gap: 0.8rem;
}

.whatsapp-link i {
    color: #25d366;
    font-size: 1.1rem;
}

.email-link i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.github-link i {
    color: var(--dark-color);
    font-size: 1.1rem;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-light);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--light-color);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: white;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 4rem 1rem 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    background: linear-gradient(45deg, #fff, var(--gray-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo p {
    color: var(--gray-light);
    font-size: 1.05rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    color: var(--gray-light);
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.2rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-social h4 {
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.2rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-icons a:hover {
    background: var(--primary-color);
    transform: translateY(-5px) scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-light);
    font-size: 0.9rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-note {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 0.8rem;
    color: var(--gray-light);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 6px 15px rgba(37, 211, 102, 0.3);
    z-index: 999;
    transition: var(--transition);
    text-decoration: none;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128C7E;
    transform: scale(1.15);
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
}

/* Animações */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* Responsividade */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 7rem 1rem 4rem;
        gap: 3rem;
    }
    
    .hero-content, .hero-image {
        width: 100%;
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.6rem;
    }
    
    .profile-placeholder {
        width: 300px;
        height: 300px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 3rem;
        transition: var(--transition);
        box-shadow: var(--box-shadow);
        z-index: 999;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }

    .nav-links a:hover::after {
        width: 0;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.95rem;
    }

    .profile-placeholder {
        width: 250px;
        height: 250px;
        font-size: 4rem;
    }

    .profile-placeholder p {
        font-size: 1rem;
    }

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

    .section {
        padding: 3rem 1rem;
    }

    .skills-container {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-date {
        min-width: 120px;
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .timeline-content::before {
        left: -10px;
        width: 20px;
        height: 20px;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-contact p {
        justify-content: center;
    }

    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .profile-placeholder {
        width: 220px;
        height: 220px;
        font-size: 3.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .info-card, .skills-category, .project-card, .contact-item, .contact-form {
        padding: 1.5rem;
    }

    .project-card h3 {
        font-size: 1.4rem;
    }

    .project-icon {
        font-size: 2.5rem;
    }

    .hero-contact-info p {
        font-size: 0.95rem;
    }

    .footer {
        padding: 3rem 1rem 1.5rem;
    }
}

/* Utilitários */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* Loader (opcional) */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

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

.loader::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 5px solid var(--gray-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: loading 0.75s ease infinite;
}

@keyframes loading {
    from { transform: rotate(0turn); }
    to { transform: rotate(1turn); }
}