/* -------------------------
   Tema claro/escuro automático à partir das definições do usuário 
---------------------------*/
:root {
    --bg: #f5f5f5;
    --bg-sec: #ffffff;
    --text: #222;
    --text-sec: #555;
    --accent: #3b82f6;

    --input-bg: #f1f1f1;
    --input-border: rgba(0,0,0,0.18);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #121212;
        --bg-sec: #1e1e1e;
        --text: #e5e5e5;
        --text-sec: #cfcfcf;
        --accent: #60a5fa;

        --input-bg: #2a2a2a;
        --input-border: rgba(255,255,255,0.18);
    }
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 280px;
    }
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

h1, h2, h3 {
    margin: 0 0 10px;
}

/* -------------------------
   BOTÕES
---------------------------*/
.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    margin-top: 15px;
}

.btn:hover {
    opacity: 0.9;
}

/* -------------------------
   CAROUSEL
---------------------------*/
.carousel {
    max-height: 500px;
    overflow: hidden;
}

.carousel-item img {
    height: 500px;
    object-fit: cover;
    object-position: center;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 8px;
}

.carousel-caption h5 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 8px;
}

.carousel-caption p {
    font-size: 1rem;
    margin: 0;
}

.carousel-item.hero-slide {
    background: linear-gradient(180deg, #3b82f6, #1e3a8a);
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-slide-content {
    text-align: center;
    color: white;
    padding: 40px 20px;
    max-width: 800px;
}

.hero-slide-content h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin-bottom: 10px;
}

.hero-slide-content h2 {
    margin-top: 15px;
    margin-bottom: 20px;
}

.hero-slide-content .lead {
    font-size: 1.2rem;
    margin-bottom: 5px;
    opacity: 0.95;
}

.hero-slide-content p {
    max-width: 600px;
    margin: 10px auto;
}

@media (max-width: 768px) {
    .carousel,
    .carousel-item img {
        height: 300px;
    }

    .carousel-item.hero-slide {
        height: 300px;
    }

    .hero-slide-content {
        padding: 20px 15px;
    }

    .hero-slide-content h1 {
        font-size: 1.5rem;
    }

    .hero-slide-content h2 {
        font-size: 1rem;
    }

    .hero-slide-content p {
        font-size: 0.9rem;
    }

    .hero-slide-content .lead {
        font-size: 1rem;
    }
}

/* -------------------------
   NAVBAR
---------------------------*/
.navbar {
    background: var(--bg-sec) !important;
}

.navbar-brand {
    color: var(--accent) !important;
    padding: 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.logo-name {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text);
    letter-spacing: 1px;
}

.logo-chip {
    font-size: 1.8rem;
    color: var(--accent);
    transition: all 0.3s ease;
}

.navbar-brand:hover .logo-chip {
    transform: rotate(90deg);
    color: #2563eb;
}

.navbar-brand:hover .logo-name {
    color: var(--accent);
}

.nav-link {
    color: var(--text) !important;
    font-weight: 500;
    transition: color 0.3s;
}

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

@media (prefers-color-scheme: dark) {
    .navbar {
        background: var(--bg-sec) !important;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .navbar-toggler {
        border-color: rgba(255,255,255,0.3);
    }

    .navbar-toggler-icon {
        filter: invert(1);
    }
}

/* -------------------------
   SEÇÕES GERAIS
---------------------------*/
.section {
    padding: 40px 20px;
    max-width: 1000px;
    margin: auto;
}

.justificado {
    text-align: justify;
    margin-bottom: 20px;
}

.sobre-container {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    margin-top: 20px;
}

.sobre-foto {
    width: 180px;
    height: 280px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 3px 10px #0004;
}

.sobre-texto {
    flex: 1;
}

@media (max-width: 768px) {
    .sobre-container {
        flex-direction: column;
        text-align: center;
    }

    .sobre-foto {
        margin-bottom: 15px;
        width: 160px;
        height: 260px;
    }

    .sobre-texto {
        text-align: left;
    }
}

/* -------------------------
   CARDS - FORMAÇÃO
---------------------------*/
#formacao .card {
    background: var(--bg-sec);
    border: 1px solid rgba(0, 0, 0, 0.125);
    transition: transform 0.8s ease, box-shadow 0.8s ease, border-color 0.8s ease;
    overflow: hidden;
}

#formacao .card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--accent);
}

#formacao .card-body {
    position: relative;
    z-index: 1;
}

#formacao .card-title {
    color: var(--text);
    font-weight: 600;
    margin-bottom: 10px;
    transition: color 0.8s ease;
}

#formacao .card:hover .card-title {
    color: var(--accent);
}

#formacao .card-text {
    color: var(--text-sec) !important;
    font-size: 0.9rem;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.8s ease, opacity 0.8s ease, margin-top 0.8s ease;
}

#formacao .card:hover .card-text,
#formacao .card.expanded .card-text {
    max-height: 200px;
    opacity: 1;
    margin-top: 8px;
}

#formacao .card-icon {
    text-align: center;
    margin-bottom: 15px;
}

#formacao .card-icon i {
    transition: transform 0.8s ease, color 0.8s ease;
}

#formacao .card:hover .card-icon i {
    transform: scale(1.2) rotate(5deg);
}

#formacao .badge {
    transition: transform 0.8s ease;
}

#formacao .card:hover .badge {
    transform: scale(1.1);
}

@media (prefers-color-scheme: dark) {
    #formacao .card {
        background: var(--bg-sec);
        border-color: rgba(255, 255, 255, 0.125);
    }

    #formacao .card:hover {
        background: #252525;
        border-color: var(--accent);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }
}

@media (max-width: 768px) {
    #formacao .card-text {
        max-height: 200px;
        opacity: 1;
        margin-top: 8px;
    }

    #formacao .card {
        cursor: pointer;
    }
}

/* -------------------------
   CARDS - PROJETOS
---------------------------*/
#projetos .projeto-card {
    background: var(--bg-sec);
    border: 1px solid rgba(0, 0, 0, 0.125);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

#projetos .projeto-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

#projetos .card-title {
    color: var(--text);
    font-weight: 600;
    font-size: 1.5rem;
}

#projetos .card-text {
    color: var(--text);
    line-height: 1.8;
    text-align: justify;
    margin-bottom: 15px;
}

#projetos .bi-cpu {
    transition: transform 0.3s ease;
}

#projetos .projeto-card:hover .bi-cpu {
    transform: rotate(360deg);
}

@media (prefers-color-scheme: dark) {
    #projetos .projeto-card {
        background: var(--bg-sec);
        border-color: rgba(255, 255, 255, 0.125);
    }

    #projetos .projeto-card:hover {
        background: #252525;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    #projetos .card-text {
        color: var(--text);
    }
}

/* -------------------------
   CARDS GERAIS
---------------------------*/
.card {
    background: var(--bg-sec);
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
    box-shadow: 0 3px 10px #0003;
}

.card ul {
    margin-top: 10px;
    padding-left: 20px;
}

.card li {
    margin-bottom: 6px;
}

/* -------------------------
   FORMULÁRIO DE CONTATO
---------------------------*/
#contato .contato-card {
    background: var(--bg-sec);
    border: 1px solid rgba(0, 0, 0, 0.125);
}

.contato-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contato-form .form-group {
    margin-bottom: 0;
}

.contato-form .form-label {
    color: var(--text);
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.contato-form .form-control {
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contato-form .form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
    background: var(--bg);
}

.contato-form .form-control::placeholder {
    color: var(--text-sec);
    opacity: 0.6;
}

.contato-form .form-select {
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background: var(--bg);
    color: var(--text-sec);
    opacity: 0.6;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, opacity 0.3s ease;
    cursor: pointer;
}

.contato-form .form-select:valid {
    color: var(--text);
    opacity: 1;
}

.contato-form .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
    background: var(--bg);
}

.contato-form .form-select option {
    background: var(--bg);
    color: var(--text);
}

.contato-form .form-select option:disabled {
    color: var(--text-sec);
    opacity: 0.6;
}

.contato-form .form-check-label {
    color: var(--text);
    cursor: pointer;
    user-select: none;
}

.contato-form .form-check-input {
    cursor: pointer;
    border: 2px solid rgba(0, 0, 0, 0.25);
}

.contato-form .form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

.contato-form .form-check-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

@media (prefers-color-scheme: dark) {
    #contato .contato-card {
        background: var(--bg-sec);
        border-color: rgba(255, 255, 255, 0.125);
    }

    .contato-form .form-control {
        background: var(--bg);
        color: var(--text);
        border-color: rgba(255, 255, 255, 0.2);
    }

    .contato-form .form-control:focus {
        background: var(--bg);
        border-color: var(--accent);
    }

    .contato-form .form-select {
        background: var(--bg);
        color: var(--text-sec);
        opacity: 0.6;
        border-color: rgba(255, 255, 255, 0.2);
    }

    .contato-form .form-select:valid {
        color: var(--text);
        opacity: 1;
    }

    .contato-form .form-select:focus {
        background: var(--bg);
        border-color: var(--accent);
    }

    .contato-form .form-select option {
        background: var(--bg-sec);
        color: var(--text);
    }

    .contato-form .form-select option:disabled {
        color: var(--text-sec);
        opacity: 0.6;
        background: var(--bg-sec);
    }

    .contato-form .form-check-input {
        background-color: var(--bg);
        border-color: rgba(255, 255, 255, 0.3);
    }

    .contato-form .form-check-input:checked {
        background-color: var(--accent);
        border-color: var(--accent);
    }
}

/* -------------------------
   FOOTER
---------------------------*/
.footer-modern {
    background: var(--bg-sec);
    color: var(--text);
    margin-top: 60px;
    padding: 20px 0;
    position: relative;
    box-shadow: 0 -0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.footer-logo {
    max-width: 220px;
    height: auto;
    transition: transform 0.3s ease;
}

.footer-logo:hover {
    transform: scale(1.05);
}

.footer-logo-dark {
    display: none;
}

.footer-logo-light {
    display: block;
}

@media (prefers-color-scheme: dark) {
    .footer-logo-dark {
        display: block;
    }

    .footer-logo-light {
        display: none;
    }
}

.footer-text {
    color: var(--text);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-separator {
    color: var(--accent);
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0 5px;
}

.footer-subtext {
    color: var(--text-sec);
    font-size: 0.95rem;
}

.footer-copyright {
    color: var(--text-sec);
    font-size: 0.85rem;
}

.footer-social-title {
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 10px;
}

.footer-social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .footer-social-links {
        justify-content: flex-end;
    }
}

.social-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 12px 20px;
    background: var(--bg);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    color: var(--text);
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 90px;
}

.social-link i {
    font-size: 1.8rem;
    transition: transform 0.3s ease;
}

.social-label {
    font-size: 0.85rem;
    font-weight: 500;
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--accent);
    color: var(--accent);
}

.social-link:hover i {
    transform: scale(1.2);
}

.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background: #2563eb;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.scroll-top-btn i {
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (prefers-color-scheme: dark) {
    .footer-modern {
        background: var(--bg-sec);
    }

    .social-link {
        background: var(--bg);
        border-color: rgba(255, 255, 255, 0.2);
    }

    .social-link:hover {
        background: #252525;
        border-color: var(--accent);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }
}

@media (max-width: 768px) {
    .footer-logo {
        max-width: 100px;
    }

    .footer-text {
        font-size: 1rem;
    }
    
    .footer-subtext {
        font-size: 0.85rem;
    }
    
    .footer-social-links {
        gap: 10px;
        justify-content: center !important;
    }
    
    .social-link {
        min-width: 80px;
        padding: 10px 15px;
    }
    
    .social-link i {
        font-size: 1.5rem;
    }
    
    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }
}