/**
 * QUINTILHANOS - Sistema de Design Premium
 * Especialista em construções, acabamentos sofisticados
 * Design moderno, responsivo e acessível
 */

/* ============================================================
   RESET E CONFIGURAÇÃO RAIZ
   ============================================================ */

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

:root {
    /* Cores - Paleta Premium */
    --cor-primaria: #1a1a1a;           /* Preto sofisticado */
    --cor-secundaria: #c0c0c0;         /* Prata elegante */
    --cor-destaque: #1a3a52;           /* Azul metálico */
    --cor-accent: #f5a623;             /* Dourado warm */
    --cor-accent-hover: #e89400;       /* Dourado hover */
    --cor-texto: #2a2a2a;              /* Cinza escuro */
    --cor-texto-light: #666;           /* Cinza médio */
    --cor-fundo: #ffffff;              /* Branco puro */
    --cor-fundo-alt: #f8f9fa;          /* Cinza claro */
    --cor-border: #e0e0e0;             /* Cinza borda */

    /* Tipografia */
    --font-principal: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    --font-size: 16px;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --line-height: 1.6;

    /* Espaçamento */
    --sp-xs: 0.5rem;
    --sp-sm: 1rem;
    --sp-md: 2rem;
    --sp-lg: 3rem;
    --sp-xl: 4rem;

    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
}

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

body {
    font-family: var(--font-principal);
    font-size: var(--font-size);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height);
    color: var(--cor-texto);
    background-color: var(--cor-fundo);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ============================================================
   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;
    }
}

/* Focus visible para navegação por teclado */
*:focus-visible {
    outline: 2px solid var(--cor-accent);
    outline-offset: 2px;
}

/* ============================================================
   COMPONENTES GLOBAIS
   ============================================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-md);
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    color: var(--cor-primaria);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--cor-destaque);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--cor-accent);
    text-decoration: underline;
}

/* ============================================================
   BOTÕES
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-xs);
    padding: 0.875rem 1.5rem;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    font-size: 1rem;
    white-space: nowrap;
    user-select: none;
}

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

.btn-primary {
    background: var(--cor-accent);
    color: var(--cor-fundo);
    border-color: var(--cor-accent);
}

.btn-primary:hover:not(:disabled) {
    background: var(--cor-accent-hover);
    border-color: var(--cor-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--cor-destaque);
    color: var(--cor-fundo);
    border-color: var(--cor-destaque);
}

.btn-secondary:hover:not(:disabled) {
    background: #142d3f;
    border-color: #142d3f;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--cor-destaque);
    border-color: var(--cor-destaque);
}

.btn-outline:hover {
    background: var(--cor-destaque);
    color: var(--cor-fundo);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ============================================================
   BOTÃO WHATSAPP FLUTUANTE
   ============================================================ */

.whatsapp-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 999;
    animation: bounce 2s infinite;
    border: none;
    cursor: pointer;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.3);
}

.whatsapp-icon {
    width: 32px;
    height: 32px;
    color: white;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================================
   NAVEGAÇÃO
   ============================================================ */

.navbar {
    background: linear-gradient(135deg, var(--cor-primaria), #2a2a2a);
    color: var(--cor-fundo);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-text h1 {
    color: var(--cor-secundaria);
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.tagline {
    font-size: 0.75rem;
    color: var(--cor-secundaria);
    opacity: 0.8;
    font-weight: var(--font-weight-medium);
    letter-spacing: 1px;
    margin: 0;
}

.menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.menu a {
    color: var(--cor-fundo);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    position: relative;
    transition: color var(--transition-fast);
    padding-bottom: 0.5rem;
}

.menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--cor-accent);
    transition: width var(--transition-fast);
}

.menu a:hover::after,
.menu a.active::after {
    width: 100%;
}

.menu a.cta-nav {
    background: var(--cor-accent);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-sm);
    color: var(--cor-primaria);
}

.menu a.cta-nav::after {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--cor-fundo);
    transition: all var(--transition-base);
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--cor-primaria);
}

.hero-video-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
    pointer-events: none;
}

.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(26,26,26,0.5) 0%, rgba(26,26,26,0.8) 100%);
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
}

.hero .container {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 var(--sp-md);
}

.hero-content h1 {
    color: var(--cor-fundo);
    font-size: 2.8rem;
    font-weight: 700;
    text-shadow: 0 4px 15px rgba(0,0,0,0.6);
    margin-bottom: 20px;
}

.hero-subtitle {
    color: #e0e0e0;
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px auto;
    text-shadow: 0 2px 10px rgba(0,0,0,0.6);
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   SEÇÕES
   ============================================================ */

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: var(--cor-accent);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--cor-texto-light);
    opacity: 0.8;
    font-size: 1.1rem;
}

/* ============================================================
   SERVIÇOS
   ============================================================ */

.servicos {
    padding: var(--sp-xl) var(--sp-md);
    background: var(--cor-fundo-alt);
}

.servicos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.servico-card {
    background: var(--cor-fundo);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.servico-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--cor-accent);
}

.servico-principal {
    border-top: 4px solid var(--cor-destaque);
}

.servico-card h3 {
    color: var(--cor-destaque);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.servico-card p {
    color: var(--cor-texto-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.servico-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.servico-features li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    color: var(--cor-texto-light);
    position: relative;
}

.servico-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--cor-accent);
    font-weight: bold;
}

/* ============================================================
   DIFERENCIAIS
   ============================================================ */

.diferenciais {
    padding: var(--sp-xl) var(--sp-md);
}

.diferenciais-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.diferencial-item {
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.05), rgba(192, 192, 192, 0.05));
    padding: 2rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--cor-accent);
    transition: all var(--transition-base);
}

.diferencial-item:hover {
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.1), rgba(192, 192, 192, 0.1));
    transform: translateX(8px);
}

.diferencial-item h3 {
    color: var(--cor-primaria);
    margin-bottom: 0.75rem;
}

.diferencial-item p {
    color: var(--cor-texto-light);
}

/* ============================================================
   GALERIA
   ============================================================ */

.galeria {
    padding: var(--sp-xl) var(--sp-md);
    background: var(--cor-fundo-alt);
}

.galeria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.galeria-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 1;
    display: block;
}

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

.galeria-item:hover img {
    transform: scale(1.08);
}

/* ============================================================
   DEPOIMENTOS
   ============================================================ */

.depoimentos {
    padding: var(--sp-xl) var(--sp-md);
}

.depoimentos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.depoimento-card {
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.05), rgba(192, 192, 192, 0.05));
    padding: 2rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--cor-accent);
    transition: all var(--transition-base);
}

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

.depoimento-texto {
    color: var(--cor-texto);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.depoimento-autor {
    color: var(--cor-primaria);
    font-weight: var(--font-weight-bold);
    margin: 0;
}

/* ============================================================
   FAQ
   ============================================================ */

.faq {
    padding: var(--sp-xl) var(--sp-md);
    background: var(--cor-fundo-alt);
}

.faq-items {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.5rem;
}

.faq-item summary {
    background: var(--cor-fundo);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 2px solid transparent;
    transition: all var(--transition-base);
    user-select: none;
    font-weight: var(--font-weight-medium);
    color: var(--cor-primaria);
}

.faq-item summary:hover {
    border-color: var(--cor-accent);
}

.faq-item[open] summary {
    border-color: var(--cor-accent);
    background: rgba(245, 166, 35, 0.05);
}

.faq-item > p {
    background: var(--cor-fundo);
    padding: 1.5rem;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border: 2px solid var(--cor-accent);
    border-top: none;
    color: var(--cor-texto);
    line-height: 1.8;
}

/* ============================================================
   CONTATO
   ============================================================ */

.contato {
    padding: var(--sp-xl) var(--sp-md);
}

.contato-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contato-info h2 {
    margin-bottom: 1rem;
}

.contato-info > p {
    color: var(--cor-texto-light);
    margin-bottom: 2rem;
}

.contato-items {
    margin: 2rem 0;
}

.contato-items p {
    margin-bottom: 1.5rem;
    color: var(--cor-texto);
}

.contato-items a {
    color: var(--cor-destaque);
    font-weight: var(--font-weight-bold);
}

.contato-form {
    background: var(--cor-fundo-alt);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.contato-form h3 {
    color: var(--cor-primaria);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--cor-primaria);
    font-weight: var(--font-weight-medium);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 2px solid var(--cor-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-principal);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cor-accent);
    box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.1);
}

.form-disclaimer {
    font-size: 0.85rem;
    color: var(--cor-texto-light);
    opacity: 0.7;
    margin-top: 1rem;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
    background: var(--cor-primaria);
    color: var(--cor-fundo);
    padding: var(--sp-xl) var(--sp-md) var(--sp-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    color: var(--cor-secundaria);
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--cor-secundaria);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ============================================================
   RESPONSIVIDADE
   ============================================================ */

@media (max-width: 768px) {
    :root {
        --sp-xl: 2.5rem;
        --sp-lg: 2rem;
    }

    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .menu-toggle {
        display: flex;
    }

    .menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 1rem;
        background: var(--cor-primaria);
        padding: 2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .menu.active {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

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

    .servicos-grid,
    .diferenciais-grid,
    .depoimentos-grid,
    .galeria-grid {
        grid-template-columns: 1fr;
    }

    .contato-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size: 14px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .container {
        padding: 0 var(--sp-sm);
    }

    .navbar .logo-text h1 {
        font-size: 1.25rem;
    }

    .hero {
        min-height: 400px;
        padding: 3rem var(--sp-sm);
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }

    .whatsapp-btn {
        width: 50px;
        height: 50px;
        bottom: 1rem;
        right: 1rem;
    }

    .contato-form {
        padding: 1.5rem;
    }
}

/* ============================================================
   UTILITÁRIOS
   ============================================================ */

.text-center { text-align: center; }
.text-primary { color: var(--cor-primaria); }
.text-secondary { color: var(--cor-secundaria); }
.text-accent { color: var(--cor-accent); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mt-4 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }
.mb-4 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 2rem; }
.p-4 { padding: 3rem; }