/* General Styles */
:root {
    --azul: #28D2F8;
    --branco: #FFFFFF;
    --roxo: #BC32D4;
    --fundo: #1A1A1A;
    --fundo-secundario: #000000;
    --font-family: 'Roboto Flex', sans-serif;

    /* Carousel specific */
    --carousel-gap: 20px;
    --carousel-arrow-size: 48px;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--fundo);
    color: var(--branco);
    font-family: var(--font-family);
    font-weight: 300;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

h1, h2, h3, h4, h5, h6, b, strong, .btn {
    font-weight: 600;
}

.font-extralight {
    font-weight: 300 !important;
}

h1 { font-size: 3.8rem; }
h2 { font-size: 2.5rem; }
p { line-height: 1.9; }

section {
    padding: 100px 0;
}

.bg-dark {
    background-color: var(--fundo-secundario);
}

/* Header */
.header {
    background-color: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    transition: background-color 0.3s ease;
}

/* Home Section */
#home {
    min-height: 100vh;
}
#home h1 {
    line-height: 1.1;
}
#home h2 {
    color: var(--azul);
    font-size: 1.5rem;
}
#home p {
    font-size: 1.1rem;
    margin: 20px 0 30px 0;
}
.hero-image-container {
    perspective: 1000px;
}
.hero-icon {
    max-width: 100%;
    overflow-x: hidden;
    animation: float3D 6s ease-in-out infinite;
}

@keyframes float3D {
    0% {
        transform: translateY(10px) rotateY(0deg);
    }
    50% {
        transform: translateY(-10px) rotateY(15deg) rotateX(5deg) translateZ(20px);
    }
    100% {
        transform: translateY(10px) rotateY(0deg);
    }
}

/* Buttons */
.btn-primary, .btn-access, .btn-ver-mais {
    border-radius: 4px !important;
}
/* Ajustei o tamanho do botão para ficar mais próximo do protótipo */
.btn-primary {
    background-color: var(--azul);
    border-color: var(--azul);
    color: var(--branco);
    padding: 10px 22px;
    transition: all 0.3s ease;
    display: inline-block;
    width: 200px;
    font-size: 0.95rem;
}
.btn-primary:hover {
    background-color: var(--branco);
    border-color: var(--branco);
    color: var(--fundo-secundario);
    transform: translateY(-3px);
}

/* Trabalhos Section */
#trabalhos {
    overflow: hidden;
}
.section-title-trabalhos {
    line-height: 1.2;
}

/* Aumentei o gap entre as setas superiores (control buttons) */
.carousel-controls {
    display: flex;
    gap: 60px; /* antes era 20px */
}

/* top small control buttons (kept as image buttons) */
.carousel-control-btn {
    background: none;
    border: none;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    cursor: pointer;
}
.carousel-control-btn img, .carousel-control-btn .bi {
    transition: transform 0.2s ease;
}
.carousel-control-btn:hover img, .carousel-control-btn:hover .bi {
    transform: scale(1.08);
}

/* Project card */
.project-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    margin: 0;
}

.project-card img {
    width: 100%;
    display: block;
    transition: transform 0.4s ease;
    /* garante que imagem preencha e mantenha cantos arredondados */
    border-radius: 12px;
}
.card-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding: 20px;
    text-align: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}
.project-card:hover .card-overlay {
    opacity: 1;
}
.card-overlay h4 {
    margin-bottom: 15px;
}
.btn-access {
    background-color: transparent;
    border: 2px solid var(--branco);
    color: var(--branco);
    padding: 8px 24px;
    transition: all 0.3s ease;
}
.btn-access:hover {
    background-color: var(--branco);
    color: var(--fundo-secundario);
}
.btn-access .bi {
    margin-left: 5px;
    vertical-align: middle;
}
@media (hover: none) and (pointer: coarse), (max-width: 991.98px) {
    .card-overlay {
        opacity: 1;
    }
}

/* Custom responsive carousel (replaces previous bootstrap multi-item hack) */
.projects-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 10px 0;
    margin-top: 10px;
}

.carousel-track {
    display: flex;
    gap: var(--carousel-gap);
    transition: transform 0.5s cubic-bezier(.22,.9,.36,1);
    will-change: transform;
    align-items: stretch;
    padding-bottom: 10px; /* visual breathing room */
    scroll-behavior: smooth;
}

.card-item {
    flex: 0 0 calc(100% / 1);
    box-sizing: border-box;
}

/* Desktop: show 3 cards per view */
@media (min-width: 768px) {
    .card-item {
        flex: 0 0 calc(100% / 3);
    }
}

/* style for arrow overlays on the carousel
   agora com fundo sólido azul (removida a transparência) */
.projects-carousel .arrow-left,
.projects-carousel .arrow-right {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
    background: var(--azul);
    border-radius: 50%;
    width: var(--carousel-arrow-size);
    height: var(--carousel-arrow-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    color: #051017; /* cor interna (contraste) */
    box-shadow: none;
}
.projects-carousel .arrow-left { left: 24px; } /* aumentei o afastamento da borda */
.projects-carousel .arrow-right { right: 24px; }

.projects-carousel .arrow-left i,
.projects-carousel .arrow-right i {
    font-size: 1.08rem;
    color: #001921;
}

/* Quando não precisa de setas (poucos items) escondemos */
.projects-carousel.no-arrows .arrow-left,
.projects-carousel.no-arrows .arrow-right {
    display: none;
}

/* small visual tweaks for inner grid */
.card-item .project-card { margin: 0 6px; }

/* Serviços Section */
/* Ajustes de espaçamento para seguir o protótipo */
#servicos p {
    color: #ccc;
    margin-bottom: 16px;
}
.service-text-block {
    height: 100%;
    display: flex;
    flex-direction: column;
    font-size: 20px;
    justify-content: center;
    gap: 18px; /* espaçamento consistente entre título / texto / botão */
}
.btn-ver-mais {
    background: none;
    border: 2px solid var(--branco);
    color: var(--branco);
    padding: 2px 8px;
    margin-left: 5px;
    transition: all 0.3s ease;
}
.btn-ver-mais .bi {
    transition: transform 0.3s ease-in-out;
}
.btn-ver-mais[aria-expanded="true"] .bi {
    transform: rotate(180deg);
}
.backend-details-content {
    padding-top: 20px;
}
.backend-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 15px;
}
.backend-list li {
    margin-bottom: 10px;
}

/* Sobre Section */
#sobre img {
    max-width: 400px;
    border-radius: 15px;
}

/* Footer */
footer {
    background-color: var(--fundo-secundario);
}
.social-icon img {
    width: 28px;
    height: 28px;
    margin-left: 20px;
    transition: transform 0.3s ease;
}
.social-icon img:hover {
    transform: scale(1.2);
}

/* Back to top button */
.back-to-top {
    position: fixed;
    visibility: hidden;
    opacity: 0;
    right: 15px;
    bottom: 15px;
    z-index: 999;
    background: var(--azul);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    transition: all 0.4s;
    font-size: 24px;
    color: var(--fundo);
}
.back-to-top:hover {
    background: var(--branco);
    color: var(--fundo);
}
.back-to-top.active {
    visibility: visible;
    opacity: 1;
}

/* Responsive general */
@media (max-width: 991.98px) {
    section {
        padding: 80px 0;
    }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    #home, #sobre {
        text-align: center;
    }
    .service-text-block {
        align-items: center;
        text-align: center;
        margin-bottom: 30px;
    }
    .service-text-block .btn-primary {
        width: auto !important;
    }
    #home .hero-icon {
        margin-top: 50px;
    }
    #sobre img {
        margin-top: 40px;
    }
    footer .container {
        flex-direction: column;
        gap: 15px;
    }
    .section-title-trabalhos {
        width: 100%;
        text-align: center;
        margin-bottom: 20px;
    }
    .carousel-controls {
        width: 100%;
        justify-content: center;
    }
}