:root {
    /* Paleta do projeto */
    --cement-light: #c4bfb6;
    --cement-mid: #8a8279;
    --cement-dark: #4a4540;
    --cement-graphite: #2d2a27;
    --sand: #d4c9b8;
    --offwhite: #f5f2ed;
    --offwhite-warm: #eae6df;
    --whatsapp: #25D366;

    /* Fontes */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Outfit', sans-serif;

    /* Espaçamento (escala 4pt) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Container */
    --container: 72rem;
    --container-xl: 80rem;

    /* Bordas */
    --radius-sm: 2px;

    /* Transições */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    height: 100%;
    margin: 0;
}

body {
    font-family: var(--font-body);
    color: var(--cement-graphite);
    background-color: var(--offwhite);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, picture, video, svg {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

h1, h2, h3, h4, h5, h6, p {
    margin: 0;
}

/* =========================================================
   UTILITÁRIOS TIPOGRÁFICOS
   ========================================================= */
.font-heading { font-family: var(--font-heading); }
.font-body { font-family: var(--font-body); }

/* Reduce layout shift from web font loading */
@font-face {
    font-family: 'Cormorant Garamond';
    font-style: normal;
    font-weight: 300 700;
    font-display: swap;
    src: local('Cormorant Garamond'), local('CormorantGaramond-Regular');
}

@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 300 600;
    font-display: swap;
    src: local('Outfit'), local('Outfit-Regular');
}

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-6xl { font-size: 3.75rem; }
.text-7xl { font-size: 4.5rem; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }

.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }
.tracking-03 { letter-spacing: 0.3em; }
.tracking-04 { letter-spacing: 0.4em; }

.uppercase { text-transform: uppercase; }

.text-center { text-align: center; }
.text-left { text-align: left; }

.italic { font-style: italic; }

.underline { text-decoration: underline; }
.hover-no-underline:hover { text-decoration: none; }
.hover-underline:hover { text-decoration: underline; }

.text-cement-graphite { color: var(--cement-graphite); }

/* =========================================================
   UTILITÁRIOS DE LAYOUT
   ========================================================= */
.container,
.container-xl {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.container { max-width: var(--container); }
.container-xl { max-width: var(--container-xl); }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.inset-0 { inset: 0; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }

.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.w-10 { width: 2.5rem; }
.h-10 { height: 2.5rem; }
.w-12 { width: 3rem; }
.h-12 { height: 3rem; }

.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: var(--container); }
.max-w-7xl { max-width: var(--container-xl); }

.mx-auto { margin-left: auto; margin-right: auto; }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.shrink-0 { flex-shrink: 0; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.gap-1 { gap: var(--space-1); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-16 { gap: var(--space-16); }

.space-y-4 > * + * { margin-top: var(--space-4); }
.space-y-5 > * + * { margin-top: var(--space-5); }

/* Espaçamento */
.p-3 { padding: var(--space-3); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-24 { padding-top: var(--space-24); padding-bottom: var(--space-24); }
.py-32 { padding-top: var(--space-32); padding-bottom: var(--space-32); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* Aparência */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-full { border-radius: 9999px; }
.overflow-hidden { overflow: hidden; }
.object-cover { object-fit: cover; }
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }

.hidden { display: none; }
.border { border: 1px solid; }
.border-t { border-top: 1px solid; }

/* Transições */
.transition-all { transition: all var(--transition-fast); }
.transition-colors { transition: color var(--transition-fast), background-color var(--transition-fast); }
.transition-transform { transition: transform var(--transition-fast); }
.transition-opacity { transition: opacity var(--transition-fast); }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }

.hover-opacity-90:hover { opacity: 0.9; }
.hover-text-white:hover { color: #ffffff; }

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

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--cement-graphite);
    color: var(--offwhite);
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--cement-light);
    color: var(--offwhite);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: #ffffff;
}

.btn-whatsapp:hover {
    opacity: 0.9;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: all 0.5s ease;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
}

.navbar-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

.navbar-links {
    display: none;
    align-items: center;
    gap: var(--space-6);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 300;
}

.navbar-links a {
    position: relative;
}

.navbar-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width var(--transition-fast);
}

.navbar-links a:hover::after {
    width: 100%;
}

.navbar-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--space-3);
    padding: 0 var(--space-6) var(--space-4);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 300;
}

.mobile-menu.is-open {
    display: flex;
}

/* Hero */
.hero {
    position: relative;
    min-height: 600px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    min-height: 600px;
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 600px;
    padding: var(--space-32) var(--space-6);
}

.hero-eyebrow {
    font-size: 0.875rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
    font-weight: 300;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 300;
    line-height: 1.25;
    max-width: 56rem;
    margin-bottom: var(--space-6);
}

.hero-subtitle {
    font-size: 1rem;
    max-width: 42rem;
    margin: 0 auto var(--space-10);
    font-weight: 300;
    line-height: 1.625;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    justify-content: center;
}

/* Stats */
.stats-bar {
    padding: var(--space-12) var(--space-6);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.875rem;
    font-weight: 300;
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: var(--space-2);
    font-weight: 300;
}

/* Seção genérica */
.section {
    padding: var(--space-24) var(--space-6);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-eyebrow {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
    font-weight: 300;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.875rem;
    font-weight: 300;
    line-height: 1.25;
}

.section-intro {
    font-size: 0.875rem;
    font-weight: 300;
    margin-top: var(--space-4);
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

/* About */
.about-grid {
    display: grid;
    gap: var(--space-16);
    align-items: center;
}

.about-image-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-sm);
    aspect-ratio: 4 / 5;
    width: 100%;
}

.about-image-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-badge {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--space-8);
}

.about-checklist {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Services */
.services-grid {
    display: grid;
    gap: var(--space-6);
}

.service-card {
    padding: var(--space-8);
    border-radius: var(--radius-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-6px);
}

.service-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-6);
}

.service-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--space-3);
}

.service-card-text {
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.625;
}

.service-cta-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8);
    border-radius: var(--radius-sm);
}

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-sm);
    cursor: pointer;
    height: 250px;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-item .overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.portfolio-item:hover .overlay {
    opacity: 1;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    gap: var(--space-6);
}

.testimonial-card {
    padding: var(--space-8);
    border-radius: var(--radius-sm);
}

.stars {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
}

.testimonial-text {
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.625;
    margin-bottom: var(--space-6);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.author-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    flex-shrink: 0;
}

/* Regions */
.regions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.region-item {
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 300;
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    padding: var(--space-6);
    border-radius: var(--radius-sm);
}

.faq-item summary {
    font-weight: 500;
    cursor: pointer;
}

.faq-answer {
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.625;
    margin-top: var(--space-4);
}

/* Contact */
.contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    max-width: 28rem;
    margin: 0 auto;
    text-align: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    justify-content: center;
}

.contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.contact-info {
    text-align: left;
    min-width: 220px;
}

.contact-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 300;
}

/* Footer */
.footer {
    padding: var(--space-12) var(--space-6);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 300;
}

.footer-bottom {
    border-top: 1px solid var(--cement-dark);
    padding-top: var(--space-6);
    text-align: center;
}

/* Texturas e efeitos */
.cement-texture {
    background: linear-gradient(135deg, #8a8279 0%, #6b6560 25%, #9a938a 50%, #7a7370 75%, #8a8279 100%);
    position: relative;
}

.cement-texture::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 0, 0, 0.08) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 80%, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.cement-card {
    background: linear-gradient(160deg, #b0a99f 0%, #9a938a 40%, #857e76 100%);
}

.shimmer-line {
    background: linear-gradient(90deg, transparent 30%, rgba(255, 255, 255, 0.08) 50%, transparent 70%);
    background-size: 200% 100%;
    animation: shimmer 8s infinite linear;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Animações */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Toast */
.toast-msg {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    transition: transform 0.4s ease, opacity 0.4s ease;
    opacity: 0;
    z-index: 999;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 300;
}

.toast-msg.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Scroll wrapper */
.scroll-wrapper {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

/* =========================================================
   RESPONSIVIDADE
   ========================================================= */
@media (min-width: 640px) {
    .hero-title { font-size: 3rem; }
    .hero-actions { flex-direction: row; }

    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .col-span-2 { grid-column: span 2; }
}

@media (min-width: 768px) {
    .md-grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md-grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md-grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .md-flex-row { flex-direction: row; }

    .about-grid { grid-template-columns: 1fr 1fr; }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
    .regions-grid { grid-template-columns: repeat(3, 1fr); }

    .section-title { font-size: 2.25rem; }
    .stat-value { font-size: 2.25rem; }
    .hero-subtitle { font-size: 1.125rem; }
    .footer-inner { flex-direction: row; }
}

@media (min-width: 1024px) {
    .navbar-links { display: flex; }
    .navbar-toggle { display: none; }

    .hero-title { font-size: 4.5rem; }
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
}