/* =========================================================
   Tijolo zap — estilo público
   Tipografia e espaçamentos fluidos para evitar quebras
   bruscas entre tamanhos de tela.
   ========================================================= */

:root {
    --cor-primaria: #ff6600;
    --cor-primaria-escura: #e55c00;
    --cor-primaria-suave: rgba(255, 102, 0, 0.12);
    --cor-secundaria: #111111;
    --cor-texto: #2b2b2b;
    --cor-texto-suave: #5a5a5a;
    --cor-fundo: #fafafa;
    --cor-superficie: #ffffff;
    --cor-borda: #e6e6e6;

    /* Espaçamentos fluidos */
    --space-3xs: clamp(0.25rem, 0.2rem + 0.2vw, 0.4rem);
    --space-2xs: clamp(0.5rem, 0.4rem + 0.3vw, 0.75rem);
    --space-xs:  clamp(0.75rem, 0.6rem + 0.4vw, 1rem);
    --space-sm:  clamp(1rem, 0.85rem + 0.6vw, 1.5rem);
    --space-md:  clamp(1.5rem, 1.2rem + 1vw, 2.25rem);
    --space-lg:  clamp(2rem, 1.5rem + 2vw, 3.5rem);
    --space-xl:  clamp(3rem, 2rem + 3vw, 5rem);

    /* Tipografia fluida */
    --fs-xs:  clamp(0.85rem, 0.8rem + 0.2vw, 0.95rem);
    --fs-sm:  clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
    --fs-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --fs-md:  clamp(1.1rem, 1rem + 0.4vw, 1.35rem);
    --fs-lg:  clamp(1.35rem, 1.15rem + 0.8vw, 1.75rem);
    --fs-xl:  clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
    --fs-2xl: clamp(2rem, 1.5rem + 2.4vw, 3.25rem);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 6px 22px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 14px 38px rgba(0, 0, 0, 0.12);

    --transition: 0.25s ease;
    --transition-slow: 0.4s ease;

    --container: 1200px;
    --container-px: clamp(1rem, 2vw, 2rem);
}

/* Reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html,
body {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: 'Roboto', system-ui, -apple-system, sans-serif;
    color: var(--cor-texto);
    line-height: 1.65;
    background-color: var(--cor-fundo);
    font-size: var(--fs-base);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--container-px);
}

/* =========================
   Header / Navegação
   ========================= */
header {
    background-color: var(--cor-secundaria);
    color: #fff;
    padding-block: var(--space-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
}

.logo {
    font-size: clamp(1.4rem, 1.2rem + 0.6vw, 1.8rem);
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.logo span {
    color: var(--cor-primaria);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    padding: var(--space-2xs);
}

nav ul {
    display: flex;
    list-style: none;
    gap: clamp(0.75rem, 0.4rem + 1vw, 1.75rem);
    align-items: center;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
}

nav ul::-webkit-scrollbar {
    display: none;
}

nav ul li {
    flex-shrink: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: var(--fs-sm);
    padding: 0.5rem 0.25rem;
    position: relative;
    white-space: nowrap;
    transition: color var(--transition);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--cor-primaria);
    transition: width var(--transition);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--cor-primaria);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* =========================
   Banner
   ========================= */
.banner {
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    padding-block: var(--space-xl);
    position: relative;
}

.banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.55));
}

.banner .container {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.banner h1 {
    font-size: var(--fs-2xl);
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    font-weight: 700;
}

.banner p {
    font-size: var(--fs-md);
    line-height: 1.6;
    margin-bottom: var(--space-sm);
    color: rgba(255, 255, 255, 0.92);
}

.banner p + p {
    margin-bottom: var(--space-md);
}

.banner .btn {
    margin-top: var(--space-2xs);
}

/* =========================
   Botões
   ========================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--cor-primaria);
    color: #fff;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--fs-sm);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    line-height: 1.2;
}

.btn:hover {
    background-color: var(--cor-primaria-escura);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(255, 102, 0, 0.28);
}

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

/* =========================
   Títulos de seção
   ========================= */
.section-title {
    text-align: center;
    margin-block: var(--space-lg) var(--space-md);
}

.section-title h2 {
    font-size: var(--fs-xl);
    color: var(--cor-secundaria);
    position: relative;
    display: inline-block;
    padding-bottom: var(--space-2xs);
    font-weight: 700;
    line-height: 1.2;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 64px;
    height: 3px;
    background-color: var(--cor-primaria);
    border-radius: 2px;
}

/* =========================
   Grid de Produtos
   ========================= */
.produtos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
    gap: var(--space-md);
    margin-block: var(--space-md) var(--space-lg);
}

.produto {
    background-color: var(--cor-superficie);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--cor-borda);
    animation: fadeIn 0.5s ease-out both;
}

.produto:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.produto-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: #f1f1f1;
}

.produto-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    will-change: transform;
}

.produto:hover .produto-img img {
    transform: scale(1.06);
}

.produto-info {
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
    flex: 1;
}

.produto-info h3 {
    font-size: var(--fs-md);
    color: var(--cor-secundaria);
    line-height: 1.3;
    font-weight: 600;
}

.produto-info p {
    color: var(--cor-texto-suave);
    font-size: var(--fs-sm);
    line-height: 1.6;
    flex: 1;
}

.produto-info .btn {
    align-self: flex-start;
    margin-top: var(--space-2xs);
}

.no-products,
.no-partners {
    text-align: center;
    padding: var(--space-lg) 0;
    color: var(--cor-texto-suave);
    font-size: var(--fs-md);
    grid-column: 1 / -1;
}

/* =========================
   Cabeçalho de Categoria
   ========================= */
.categoria-header {
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    padding-block: var(--space-xl);
    position: relative;
    margin-bottom: var(--space-md);
}

.categoria-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.55));
}

.categoria-header .container {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.categoria-header h1 {
    font-size: var(--fs-2xl);
    margin-bottom: var(--space-sm);
    line-height: 1.15;
    font-weight: 700;
}

.categoria-header p {
    font-size: var(--fs-md);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
}

/* =========================
   Detalhe do Produto
   ========================= */
.produto-detalhe {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-block: var(--space-lg);
}

.produto-galeria {
    position: relative;
    width: 100%;
}

.produto-galeria-principal {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: var(--space-sm);
    background-color: var(--cor-superficie);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--cor-borda);
}

.produto-galeria-principal img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.produto-galeria-miniaturas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: var(--space-2xs);
    max-width: 100%;
}

.produto-miniatura {
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    background-color: var(--cor-superficie);
}

.produto-miniatura img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.produto-miniatura.active {
    border-color: var(--cor-primaria);
}

.produto-miniatura:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Informações detalhadas */
.produto-info-detalhada {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.produto-info-detalhada h1 {
    font-size: var(--fs-xl);
    color: var(--cor-secundaria);
    line-height: 1.2;
    font-weight: 700;
}

.produto-info-detalhada .categoria {
    color: var(--cor-texto-suave);
    font-size: var(--fs-sm);
}

.produto-info-detalhada .categoria a {
    color: var(--cor-primaria);
    text-decoration: none;
    font-weight: 600;
}

.produto-info-detalhada .categoria a:hover {
    text-decoration: underline;
}

.produto-descricao {
    color: var(--cor-texto);
    line-height: 1.8;
    font-size: var(--fs-base);
    padding-block: var(--space-sm);
    border-top: 1px solid var(--cor-borda);
    border-bottom: 1px solid var(--cor-borda);
}

/* =========================
   Calculadora / Orçamento
   ========================= */
.calculadora {
    background: linear-gradient(135deg, #ffffff 0%, #f7f7f7 100%);
    border-radius: var(--radius);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--cor-borda);
}

.calculadora h3 {
    color: var(--cor-secundaria);
    font-size: var(--fs-lg);
    margin-bottom: var(--space-sm);
    position: relative;
    padding-bottom: var(--space-2xs);
    font-weight: 700;
}

.calculadora h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 48px;
    height: 3px;
    background-color: var(--cor-primaria);
    border-radius: 2px;
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-3xs);
    color: var(--cor-secundaria);
    font-weight: 500;
    font-size: var(--fs-sm);
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1.5px solid var(--cor-borda);
    border-radius: var(--radius-sm);
    font-size: var(--fs-sm);
    font-family: inherit;
    transition: var(--transition);
    background-color: #fff;
    color: var(--cor-texto);
}

.form-control:focus {
    outline: none;
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 3px var(--cor-primaria-suave);
}

.form-control::placeholder {
    color: #aaa;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23333' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.btn-primary {
    background-color: var(--cor-primaria);
    color: #fff;
    padding: 0.95rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: var(--fs-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: inherit;
}

.btn-primary:hover {
    background-color: var(--cor-primaria-escura);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(255, 102, 0, 0.28);
}

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

/* =========================
   Parceiros
   ========================= */
.parceiros {
    margin-block: var(--space-lg);
}

.parceiros-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-sm);
    margin-block: var(--space-md);
}

.parceiro {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius);
    background-color: var(--cor-superficie);
    padding: var(--space-xs);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--cor-borda);
}

.parceiro img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.parceiro:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* =========================
   Footer
   ========================= */
footer {
    background-color: var(--cor-secundaria);
    color: #fff;
    padding: var(--space-lg) 0 var(--space-sm);
    margin-top: var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.footer-logo {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.footer-logo span {
    color: var(--cor-primaria);
}

.footer-info p {
    margin-bottom: var(--space-2xs);
    color: #cfcfcf;
    font-size: var(--fs-sm);
    line-height: 1.7;
}

.footer-links h3 {
    font-size: var(--fs-md);
    margin-bottom: var(--space-sm);
    position: relative;
    padding-bottom: var(--space-2xs);
    font-weight: 600;
}

.footer-links h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 2px;
    background-color: var(--cor-primaria);
    border-radius: 2px;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: var(--space-2xs);
}

.footer-links ul li a {
    color: #cfcfcf;
    text-decoration: none;
    font-size: var(--fs-sm);
    transition: color var(--transition);
}

.footer-links ul li a:hover {
    color: var(--cor-primaria);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #cfcfcf;
    font-size: var(--fs-xs);
}

/* =========================
   Acessibilidade
   ========================= */
.btn:focus-visible,
.btn-primary:focus-visible,
nav ul li a:focus-visible,
.form-control:focus-visible {
    outline: 2px solid var(--cor-primaria);
    outline-offset: 2px;
}

/* =========================
   Animações
   ========================= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* =========================
   Layout em telas grandes
   ========================= */
@media (min-width: 900px) {
    .produto-detalhe {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        align-items: start;
        gap: var(--space-lg);
    }

    .produto-galeria {
        position: sticky;
        top: 100px;
    }
}

@media (min-width: 1200px) {
    .produto-detalhe {
        gap: var(--space-xl);
    }
}

/* =========================
   Layout em telas pequenas
   ========================= */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        position: fixed;
        top: 0;
        right: 0;
        width: min(80%, 320px);
        height: 100vh;
        background-color: var(--cor-secundaria);
        padding: var(--space-xl) var(--space-md) var(--space-md);
        transform: translateX(100%);
        transition: transform var(--transition);
        box-shadow: -8px 0 24px rgba(0, 0, 0, 0.2);
        overflow-y: auto;
    }

    nav.active {
        transform: translateX(0);
    }

    nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2xs);
        overflow: visible;
    }

    nav ul li {
        width: 100%;
    }

    nav ul li a {
        display: block;
        padding: var(--space-xs) 0;
        font-size: var(--fs-base);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        width: 100%;
    }

    nav ul li a::after {
        display: none;
    }

    .menu-toggle {
        position: relative;
        z-index: 1100;
    }

    .menu-toggle.active i::before {
        content: '\f00d';
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
    }

    .produto-info .btn {
        align-self: stretch;
    }

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

/* =========================
   Dark mode (opcional)
   ========================= */
@media (prefers-color-scheme: dark) {
    :root {
        --cor-fundo: #161616;
        --cor-superficie: #1f1f1f;
        --cor-texto: #ededed;
        --cor-texto-suave: #b5b5b5;
        --cor-borda: #2a2a2a;
    }

    .section-title h2,
    .produto-info h3,
    .produto-info-detalhada h1,
    .calculadora h3,
    .form-group label {
        color: #ffffff;
    }

    .produto-info p,
    .produto-info-detalhada .categoria,
    .produto-descricao {
        color: var(--cor-texto-suave);
    }

    .produto {
        border-color: var(--cor-borda);
    }

    .calculadora {
        background: linear-gradient(135deg, #1f1f1f 0%, #1a1a1a 100%);
        border-color: var(--cor-borda);
    }

    .form-control {
        background-color: #161616;
        color: #ededed;
        border-color: var(--cor-borda);
    }

    .form-control::placeholder {
        color: #777;
    }

    select.form-control {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23ededed' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    }

    .parceiro {
        background-color: var(--cor-superficie);
        border-color: var(--cor-borda);
    }
}