/* ============================================
   LINHA FINA ARQUITETURA & INTERIORES
   Design System: Premium Minimalist Editorial
   Paleta: Off-white/Creme + Preto/Cinza + Dourado suave
   Tipografia: Playfair Display (display) + Lato (body)
   ============================================ */

/* ============================================
   RESET E VARIÁVEIS
   ============================================ */
:root {
    --color-white: #fafaf8;
    --color-cream: #f5f3f0;
    --color-light-gray: #e8e6e3;
    --color-gray: #b0aca8;
    --color-dark-gray: #5a5652;
    --color-black: #1a1815;
    --color-gold: #d4a574;
    --color-gold-light: #e8d4b8;
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --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 12px 32px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.6;
    font-size: 16px;
}

/* ============================================
   TIPOGRAFIA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

p {
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    color: var(--color-dark-gray);
}

a {
    color: var(--color-black);
    text-decoration: none;
    transition: var(--transition);
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER STICKY
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-light-gray);
    padding: var(--spacing-sm) 0;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xs) 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo a {
    color: var(--color-black);
    transition: var(--transition);
}

.logo a:hover {
    color: var(--color-gold);
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav a {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-dark-gray);
    position: relative;
    transition: var(--transition);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width 0.3s ease;
}

.nav a:hover {
    color: var(--color-black);
}

.nav a:hover::after {
    width: 100%;
}

.cta-header {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1.5px solid var(--color-black);
    color: var(--color-black);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.cta-header:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 60px;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 24, 21, 0.4) 0%, rgba(26, 24, 21, 0.2) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    max-width: 700px;
    padding: 0 var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-gold-light);
    font-weight: 300;
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   BOTÕES
   ============================================ */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
}

.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-black);
    border: 2px solid var(--color-gold);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-gold);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

/* ============================================
   SEÇÃO PROJETOS
   ============================================ */
.projetos {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-cream);
}

.filtros {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filtro-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1.5px solid var(--color-dark-gray);
    background-color: transparent;
    color: var(--color-dark-gray);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filtro-btn:hover,
.filtro-btn.active {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.grid-projetos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.projeto-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1;
    border-radius: 2px;
    transition: var(--transition);
    opacity: 1;
}

.projeto-card.hidden {
    display: none;
    opacity: 0;
}

.projeto-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.projeto-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(26, 24, 21, 0.9) 100%);
    padding: var(--spacing-lg) var(--spacing-md);
    color: var(--color-white);
    transform: translateY(20px);
    transition: var(--transition);
}

.projeto-card:hover .projeto-info {
    transform: translateY(0);
}

.projeto-info h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.projeto-info p {
    color: var(--color-gold-light);
    font-size: 0.9rem;
    margin: 0;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    animation: fadeIn 0.3s ease-out;
}

.lightbox.active {
    display: flex;
    flex-direction: column;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2.5rem;
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition);
    z-index: 2001;
}

.lightbox-close:hover {
    color: var(--color-gold);
}

.lightbox-image {
    max-width: 90%;
    max-height: 70vh;
    object-fit: contain;
    margin-bottom: var(--spacing-lg);
    animation: zoomIn 0.3s ease-out;
}

.lightbox-info {
    text-align: center;
    color: var(--color-white);
}

.lightbox-info h3 {
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
}

.lightbox-info p {
    color: var(--color-light-gray);
    margin: 0;
}

/* ============================================
   SEÇÃO SERVIÇOS
   ============================================ */
.servicos {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.grid-servicos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.servico-card {
    padding: var(--spacing-lg);
    background-color: var(--color-cream);
    border-radius: 2px;
    transition: var(--transition);
    text-align: center;
}

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

.servico-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.servico-card h3 {
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.servico-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   SEÇÃO PROCESSO
   ============================================ */
.processo {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-cream);
}

.processo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.processo-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step {
    display: flex;
    gap: var(--spacing-lg);
}

.step-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    min-width: 80px;
}

.step h3 {
    margin-bottom: var(--spacing-sm);
}

.step p {
    font-size: 0.95rem;
    margin: 0;
}

.processo-image img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    box-shadow: var(--shadow-md);
}

.automacao-section {
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: 2px;
}

.automacao-section h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.automacao-section > p {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.automacao-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.automacao-card {
    padding: var(--spacing-md);
    background-color: var(--color-cream);
    border-left: 3px solid var(--color-gold);
    border-radius: 2px;
}

.automacao-card h4 {
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.automacao-card p {
    font-size: 0.9rem;
    margin: 0;
}

.automacao-nota {
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ============================================
   SEÇÃO SOBRE
   ============================================ */
.sobre {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.sobre-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.sobre-image img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    box-shadow: var(--shadow-md);
}

.sobre-text h2 {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.sobre-text p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.team-profiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.profile {
    padding: var(--spacing-md);
    background-color: var(--color-cream);
    border-radius: 2px;
}

.profile h4 {
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.profile p {
    font-size: 0.9rem;
    color: var(--color-gold);
    margin: 0 0 var(--spacing-xs) 0;
    font-weight: 600;
}

.profile span {
    font-size: 0.85rem;
    color: var(--color-gray);
    display: block;
}

/* ============================================
   SEÇÃO DEPOIMENTOS
   ============================================ */
.depoimentos {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-cream);
}

.grid-depoimentos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.depoimento-card {
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: 2px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.depoimento-card p {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-md);
}

.depoimento-card h4 {
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.depoimento-card span {
    font-size: 0.85rem;
    color: var(--color-gold);
    font-weight: 600;
}

/* ============================================
   SEÇÃO CONTATO
   ============================================ */
.contato {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.formulario-orcamento {
    max-width: 700px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full {
    grid-column: 1 / -1;
}

.form-group.checkbox {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-black);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-light-gray);
    background-color: var(--color-cream);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-black);
    transition: var(--transition);
    border-radius: 2px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.1);
}

.form-group textarea {
    resize: vertical;
    font-family: var(--font-body);
}

.form-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
}

.form-group.checkbox label {
    margin: 0;
    font-weight: 400;
}

.formulario-orcamento > button {
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
}

.form-nota {
    grid-column: 1 / -1;
    font-size: 0.85rem;
    color: var(--color-gray);
    text-align: center;
    margin-top: var(--spacing-md);
}

/* ============================================
   RODAPÉ
   ============================================ */
.footer {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
    border-top: 1px solid var(--color-dark-gray);
}

.footer p {
    margin: var(--spacing-sm) 0;
    color: var(--color-light-gray);
    font-size: 0.9rem;
}

.footer-demo {
    color: var(--color-gold);
}

/* ============================================
   ANIMAÇÕES
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   RESPONSIVO
   ============================================ */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .grid-projetos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-servicos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .processo-content {
        grid-template-columns: 1fr;
    }
    
    .sobre-content {
        grid-template-columns: 1fr;
    }
    
    .team-profiles {
        grid-template-columns: 1fr;
    }
    
    .grid-depoimentos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .automacao-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .nav {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .cta-header {
        display: none;
    }
    
    .nav.active {
        display: flex;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-white);
        padding: var(--spacing-md);
        gap: var(--spacing-md);
        border-bottom: 1px solid var(--color-light-gray);
        z-index: 999;
    }
    
    .grid-projetos {
        grid-template-columns: 1fr;
    }
    
    .grid-servicos {
        grid-template-columns: 1fr;
    }
    
    .grid-depoimentos {
        grid-template-columns: 1fr;
    }
    
    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .formulario-orcamento {
        grid-template-columns: 1fr;
    }
    
    .form-group.full {
        grid-column: 1;
    }
    
    .lightbox-image {
        max-width: 95%;
        max-height: 60vh;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .hero {
        margin-top: 50px;
        height: 80vh;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .filtros {
        gap: var(--spacing-sm);
    }
    
    .filtro-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }
    
    .servico-icon {
        font-size: 2rem;
    }
    
    .step-number {
        font-size: 2rem;
        min-width: 60px;
    }
    
    .team-profiles {
        grid-template-columns: 1fr;
    }
}