/* ── Variables ── */
:root {
  --color-bg: #0c0f14;
  --color-bg-elevated: #141820;
  --color-bg-card: #1a1f28;
  --color-surface: #f5f3ef;
  --color-text: #e8e6e1;
  --color-text-muted: #9a968f;
  --color-text-dark: #1a1a1a;
  --color-accent: #c9a962;
  --color-accent-light: #dfc88a;
  --color-accent-dark: #a88b42;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

.section {
  padding-block: clamp(4rem, 10vw, 7rem);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
}

.section-header-light h2 {
  color: var(--color-text);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 169, 98, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-nav {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(12, 15, 20, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 8px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-accent {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a:not(.btn) {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav-links a:not(.btn):hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(12, 15, 20, 0.85) 0%, rgba(12, 15, 20, 0.5) 50%, rgba(12, 15, 20, 0.75) 100%),
    url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80') center/cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(201, 169, 98, 0.08) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 4rem;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 780px;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.35s forwards;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 4rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.65s forwards;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0;
  animation: fadeUp 0.8s 1s forwards;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s infinite;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ── Sobre ── */
.sobre {
  background: var(--color-surface);
  color: var(--color-text-dark);
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.sobre-visual {
  position: relative;
}

.sobre-image {
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?w=800&q=80') center/cover no-repeat;
  box-shadow: var(--shadow);
}

.sobre-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--color-bg);
  color: var(--color-text);
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.badge-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.badge-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.sobre-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.sobre-text p {
  color: #555;
  margin-bottom: 1rem;
}

.sobre-list {
  margin-top: 1.5rem;
}

.sobre-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.625rem;
  font-weight: 500;
  color: var(--color-text-dark);
}

.sobre-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ── Empreendimentos ── */
.empreendimentos {
  background: var(--color-bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: auto auto;
  gap: 1.5rem;
}

.project-featured {
  grid-row: span 2;
}

.project-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 169, 98, 0.3);
  box-shadow: var(--shadow);
}

.project-image {
  aspect-ratio: 16/10;
  background-size: cover;
  background-position: center;
}

.project-featured .project-image {
  aspect-ratio: auto;
  height: 100%;
  min-height: 320px;
}

.project-img-1 {
  background-image: url('https://images.unsplash.com/photo-1512917774080-9991f1c4c750?w=800&q=80');
}

.project-img-2 {
  background-image: url('https://images.unsplash.com/photo-1486718448742-163663cd1525?w=800&q=80');
}

.project-img-3 {
  background-image: url('https://images.unsplash.com/photo-1600596542815-ffad4c1539a9?w=800&q=80');
}

.project-content {
  padding: 1.5rem;
}

.project-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(201, 169, 98, 0.12);
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.project-content h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.project-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: color var(--transition);
}

.project-link:hover {
  color: var(--color-accent-light);
}

/* ── Diferenciais ── */
.diferenciais {
  background: var(--color-bg-elevated);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem 1.5rem;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: rgba(201, 169, 98, 0.25);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.12);
  border-radius: 10px;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ── CTA Banner ── */
.cta-banner {
  padding-block: clamp(3rem, 8vw, 5rem);
  background:
    linear-gradient(135deg, rgba(201, 169, 98, 0.15) 0%, transparent 60%),
    var(--color-bg);
  border-block: 1px solid rgba(255, 255, 255, 0.06);
}

.cta-content {
  text-align: center;
}

.cta-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.cta-content p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* ── Contato ── */
.contato {
  background: var(--color-surface);
  color: var(--color-text-dark);
}

.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contato-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.contato-info > p {
  color: #555;
  margin-bottom: 2rem;
}

.contato-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.contato-list svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-accent-dark);
}

.contato-form {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  border: 1.5px solid #e0ddd6;
  border-radius: 8px;
  background: #faf9f7;
  color: var(--color-text-dark);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-feedback {
  margin-top: 1rem;
  font-size: 0.875rem;
  text-align: center;
}

.form-feedback.success {
  color: #2d6a4f;
}

.form-feedback.error {
  color: #c0392b;
}

/* ── Footer ── */
.footer {
  background: var(--color-bg);
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 320px;
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-block: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sobre-grid,
  .contato-grid {
    grid-template-columns: 1fr;
  }

  .sobre-badge {
    right: 1rem;
    bottom: -1rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-featured {
    grid-row: auto;
  }

  .project-featured .project-image {
    min-height: 240px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(12, 15, 20, 0.98);
    backdrop-filter: blur(16px);
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li {
    padding-block: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links .btn-nav {
    margin-top: 0.5rem;
    text-align: center;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }
}