@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

/* Variáveis de cores - mantendo a paleta atual */
:root {
    --primary: #4f46e5;
    --secondary: #7c3aed;
    --dark: #0f172a;
    --darker: #0a0f1c;
    --light: #e2e8f0;   
    --glass: rgba(255, 255, 255, 0.1);
    --white: #fff;
}

/* Reset e estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
}

/* Acessibilidade - foco visível */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Skip Link para acessibilidade */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary);
    color: var(--light);
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 1000;
    border-radius: 0 0 8px 0;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

/* Indicador de Progresso de Scroll */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 9999;
    transition: width 0.1s ease;
    box-shadow: 0 2px 10px rgba(79, 70, 229, 0.5);
}

/* Botão Voltar ao Topo */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 6px 25px rgba(79, 70, 229, 0.6);
}

.back-to-top:active {
    transform: translateY(-3px) scale(1.05);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
}

/* Animações de Entrada (Fade-in) */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Menu Ativo - Destacar seção atual */
.nav-bar ul li a.active {
    color: var(--primary);
}

.nav-bar ul li a.active::after {
    width: 100%;
}

/* Header e Navegação */
.nav-bar {
    position: fixed;
    top: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    width: 100%;
    z-index: 100;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-bar ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 3rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-bar ul li a {
    text-decoration: none;
    color: var(--light);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-bar ul li a:hover {
    color: var(--primary);
}

.nav-bar ul li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.5s ease-in-out;
}

.nav-bar ul li a:hover::after {
    width: 100%;
}

/* Botão Mobile - Removido, menu sempre visível */

/* Botão Contatar (Footer e Formulário) */
.btn-default {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--light);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-default:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.btn-default:active {
    transform: translateY(0);
}

.btn-default i {
    font-size: 1.1rem;
}

/* Botão no Footer */
.footer-whatsapp-btn {
    margin-top: 0.5rem;
}

/* Botão no Formulário */
.form-contact .btn-default {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}

/* Menu sempre visível */
#nav-links {
    display: flex;
}

/* Seção Home */
.home {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: 80px;
}

.profile-img {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    border: 4px solid var(--glass);
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.3);
    object-fit: cover;
    aspect-ratio: 1 / 1;
    transition: transform 0.3s ease;
}

.profile-img:hover {
    transform: scale(1.05);
}

h1 {
    font-size: 3.5rem;
    color: var(--primary);
    font-weight: bold;
    margin: 20px 0;
    text-align: center;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--light);
    text-align: center;
}

/* Seção Sobre */
.about {
    padding: 6rem 2rem;
}

.about-title {
    font-size: 3rem;
    color: var(--light);
    text-align: center;
    margin-bottom: 3rem;
}

.about-content {
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 16px;
    border: 1px solid var(--glass);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.about-content:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 40px rgba(79, 70, 229, 0.2);
}

.about-text {
    text-align: justify;
    font-size: 1rem;
    line-height: 1.8;
}

/* Seção Habilidades */
.skills {
    padding: 6rem 2rem;
}

.skills-title {
    font-size: 3rem;
    color: var(--light);
    text-align: center;
    margin-bottom: 3rem;
}

.skills-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skills-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

.skills-card:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 30px rgba(79, 70, 229, 0.3);
}

.skills-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.skills-img:hover {
    transform: scale(1.1);
}

/* Seção Projetos */
.projects {
    padding: 6rem 2rem;
}

.projects-title {
    font-size: 3rem;
    color: var(--light);
    text-align: center;
    margin-bottom: 3rem;
}

/* Container do carrossel */
.projects-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Quando JS está habilitado, transforma em carrossel horizontal mostrando 3 por vez */
.js-enabled .projects-content {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding: 1.5rem 2rem;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
    -ms-overflow-style: none;
    scroll-snap-type: x mandatory;
    scroll-padding: 0 2.5rem;
    -webkit-overflow-scrolling: touch;
}

/* Estilização da barra de rolagem */
.projects-content::-webkit-scrollbar {
    height: 6px;
}

.projects-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin: 0 1rem;
}

.projects-content::-webkit-scrollbar-thumb {
    background-color: var(--primary);
    border-radius: 10px;
    border: none;
}

/* Efeito de arrastar no carrossel */
.js-enabled .projects-content {
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}

.js-enabled .projects-content:active {
    cursor: grabbing;
}

/* Indicadores de posição */
.projects-scroll-indicator {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0 1rem;
}

.scroll-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.scroll-dot.active {
    background: var(--primary);
    transform: scale(1.2);
}

/* Mostrar apenas 3 cards por vez no desktop */
.js-enabled .projects-card {
    flex: 0 0 calc(33.333% - 1.33rem);
    max-width: calc(33.333% - 1.33rem);
    min-width: 300px;
}

/* Fallback quando JS está desabilitado */
.no-js .projects-content {
    display: grid;
    grid-template-columns: 1fr;
    overflow-x: visible;
}

.projects-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass);
    backdrop-filter: blur(5px);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    scroll-snap-align: start;
    flex-shrink: 0;
    position: relative;
    transform-origin: center;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.projects-card-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: center;
    min-height: 80px;
}

.projects-card:focus-within {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    transform: scale(1.02);
}

.projects-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(79, 70, 229, 0.3);
}

.title-img,
.title-img a,
.title-img a:hover,
.title-img a:focus {
    text-decoration: none !important;
    color: white !important;
}

.title-img {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    padding: 0.75rem 0;
    color: var(--white);
    transition: color 0.3s ease;
    text-align: center;
    width: 100%;
    display: block;
}

/* Melhorias na responsividade dos cards */
@media (max-width: 768px) {
    .projects-card {
        border-radius: 12px;
    }
    
    .title-img {
        font-size: 1.1rem;
        padding: 0.5rem 0;
    }
    
    .projects-card-content {
        padding: 0.75rem;
        min-height: 60px;
    }
}

@media (max-width: 480px) {
    .projects-card {
        border-radius: 10px;
    }
    
    .title-img {
        font-size: 1rem;
        padding: 0.5rem 0;
    }
    
    .projects-card-content {
        padding: 0.5rem;
        min-height: 50px;
    }
}

.projects-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.projects-card:hover .projects-img {
    transform: scale(1.03);
}

@media (max-width: 768px) {
    .projects-img {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .projects-img {
        height: 160px;
    }
}

/* Botões de navegação do carrossel */
.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    background: var(--primary);
    color: var(--light);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.carousel-btn:hover:not(:disabled) {
    background: var(--secondary);
    transform: scale(1.05);
}

.carousel-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Seção Contato */
#contact {
    padding: 6rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.title-contact {
    font-size: 3rem;
    color: var(--light);
    text-align: center;
    margin-bottom: 3rem;
}

.form-contact {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.form-group label {
    display: block;
    color: var(--light);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.campo-form,
.text-form {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--glass);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--light);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.campo-form:focus,
.text-form:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.campo-form::placeholder,
.text-form::placeholder {
    color: rgba(226, 232, 240, 0.5);
}

.text-form {
    min-height: 150px;
    resize: vertical;
}

.form-contact button {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--light);
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.form-contact button:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.form-contact button:active {
    transform: translateY(0);
}

/* Mensagens de validação */
.form-message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid #22c55e;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid #ef4444;
}

/* Footer */
footer {
    background: var(--darker);
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--glass);
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-social a {
    color: var(--light);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-social a:hover {
    color: var(--primary);
    transform: scale(1.2);
}

.footer-social a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    border-radius: 4px;
}

.footer-links {
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--light);
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary);
    text-decoration: underline;
}

.footer-copyright {
    color: rgba(226, 232, 240, 0.7);
    font-size: 0.9rem;
    margin-top: 1.5rem;
}

/* Responsividade - Mobile First */

/* Mobile pequeno (até 480px) */
@media (max-width: 480px) {
    .nav-bar {
        padding: 0.75rem 1rem;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .nav-bar ul {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
        display: flex;
        width: 100%;
    }

    .nav-bar ul li {
        flex: 0 0 auto;
    }

    .nav-bar ul li a {
        padding: 0.6rem 1rem;
        font-size: 0.875rem;
        border-radius: 25px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        transition: all 0.3s ease;
        white-space: nowrap;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        font-weight: 500;
    }

    .nav-bar ul li a:hover,
    .nav-bar ul li a:focus {
        background: linear-gradient(135deg, rgba(79, 70, 229, 0.3), rgba(124, 58, 237, 0.3));
        border-color: var(--primary);
        color: var(--light);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
    }

    .nav-bar ul li a::after {
        display: none;
    }


    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .profile-img {
        width: 250px;
        height: 250px;
    }

    .about-title,
    .skills-title,
    .projects-title,
    .title-contact {
        font-size: 2rem;
    }

    .about-content,
    .skills-card,
    .projects-card {
        padding: 1.5rem;
    }

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

        /* Mobile: mostrar 1 card por vez no carrossel */
    .js-enabled .projects-card {
        flex: 0 0 calc(100% - 1.5rem);
        max-width: calc(100% - 1.5rem);
        min-width: calc(100% - 1.5rem);
        margin: 0.5rem 0.75rem;
        scroll-snap-align: center;
    }
    
    .js-enabled .projects-content {
        padding: 0.5rem 0.5rem 1.5rem;
        scroll-padding: 0 1.5rem;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }
    
    .projects-card {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .projects-card:active {
        transform: scale(0.98);
    }

    .skills-card {
        width: 100%;
        max-width: 100%;
    }
}

/* Tablet (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .nav-bar ul {
        gap: 1.5rem;
        font-size: 0.9rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.3rem;
    }

    .profile-img {
        width: 300px;
        height: 300px;
    }

    .about-title,
    .skills-title,
    .projects-title,
    .title-contact {
        font-size: 2.5rem;
    }

    .projects-content {
        grid-template-columns: repeat(2, 1fr);
    }

        /* Tablet: mostrar 2 cards por vez no carrossel */
    .js-enabled .projects-card {
        flex: 0 0 calc(50% - 2rem);
        max-width: calc(50% - 2rem);
        min-width: calc(50% - 2rem);
        margin: 0.5rem;
        scroll-snap-align: start;
    }
    
    .js-enabled .projects-content {
        padding: 0.5rem 1rem 2rem;
        scroll-padding: 0 2rem;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }
}

/* Desktop pequeno (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav-bar ul {
        gap: 2rem;
    }

    .projects-content {
        grid-template-columns: repeat(3, 1fr);
    }

        /* Desktop pequeno: mostrar 3 cards por vez no carrossel */
    .js-enabled .projects-card {
        flex: 0 0 calc(33.333% - 1.5rem);
        max-width: calc(33.333% - 1.5rem);
        min-width: 280px;
        margin: 0.5rem;
        scroll-snap-align: start;
    }
    
    .js-enabled .projects-content {
        padding: 0.5rem 1.5rem 2.5rem;
        scroll-padding: 0 2.5rem;
        scroll-snap-type: x mandatory;
    }
}

/* Desktop grande (acima de 1024px) */
@media (min-width: 1025px) {
    .nav-bar ul {
        display: flex !important;
    }
}

/* Redução de movimento para acessibilidade */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .fade-in-section {
        opacity: 1;
        transform: none;
    }
    
    .back-to-top {
        transition: opacity 0.01ms !important;
    }
}

/* Responsividade do botão voltar ao topo */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}