/* ============================================================
   BAKEN CONSTRUTORA — Design System
   Version: 2.0
   ============================================================ */

/* 1. GOOGLE FONTS IMPORT */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* 2. CSS CUSTOM PROPERTIES (TOKENS) */
:root {
  /* Colors */
  --primary:        #C8102E;
  --primary-dark:   #8B0A1E;
  --primary-light:  #F5E6E9;
  --accent-gold:    #B8933F;
  --accent-gold-lt: #F5EDD8;

  --neutral-900:    #0F0F0F;
  --neutral-800:    #1E1E1E;
  --neutral-700:    #3D3D3D;
  --neutral-500:    #737373;
  --neutral-400:    #A3A3A3;
  --neutral-300:    #D4D4D4;
  --neutral-200:    #E8E8E8;
  --neutral-100:    #F7F7F5;
  --white:          #FFFFFF;

  /* Typography */
  --font-serif:     'Playfair Display', Georgia, serif;
  --font-sans:      'Inter', system-ui, -apple-system, sans-serif;

  /* Font Sizes */
  --text-xs:        0.75rem;    /* 12px */
  --text-sm:        0.875rem;   /* 14px */
  --text-base:      1rem;       /* 16px */
  --text-lg:        1.125rem;   /* 18px */
  --text-xl:        1.25rem;    /* 20px */
  --text-2xl:       1.5rem;     /* 24px */
  --text-3xl:       1.875rem;   /* 30px */
  --text-4xl:       2.25rem;    /* 36px */
  --text-5xl:       3rem;       /* 48px */
  --text-6xl:       3.75rem;    /* 60px */
  --text-7xl:       4.5rem;     /* 72px */

  /* Spacing */
  --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;

  /* Layout */
  --container-max:  1280px;
  --container-pad:  2rem;

  /* Border Radius */
  --radius-sm:   3px;
  --radius-md:   6px;
  --radius-lg:   12px;
  --radius-xl:   20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 4px rgba(0,0,0,0.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.16);

  /* Transitions */
  --ease:       cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:   cubic-bezier(0.0, 0.0, 0.2, 1);
  --duration:   260ms;
  --duration-lg: 420ms;

  /* Z-Index */
  --z-nav:      100;
  --z-overlay:  200;
  --z-modal:    300;
}

/* 3. RESET */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--neutral-700);
  background-color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* 4. LAYOUT */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--space-24) 0;
}

.section--lg {
  padding: var(--space-32) 0;
}

.section--sm {
  padding: var(--space-16) 0;
}

/* 5. TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  color: var(--neutral-900);
}

.h-display {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, var(--text-7xl));
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.h1 { font-size: clamp(2rem, 4vw, var(--text-6xl)); }
.h2 { font-size: clamp(1.75rem, 3vw, var(--text-5xl)); }
.h3 { font-size: clamp(1.375rem, 2.5vw, var(--text-4xl)); }
.h4 { font-size: var(--text-2xl); font-family: var(--font-sans); font-weight: 600; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
}

.eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 1.5px;
  background-color: var(--primary);
  flex-shrink: 0;
}

.lead {
  font-size: var(--text-lg);
  font-weight: 300;
  line-height: 1.7;
  color: var(--neutral-500);
}

/* 6. BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn--primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(200, 16, 46, 0.35);
}

.btn--outline {
  background-color: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.6);
}

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

.btn--outline-dark {
  background-color: transparent;
  color: var(--neutral-900);
  border: 1.5px solid var(--neutral-300);
}

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

.btn--ghost {
  padding: 0;
  color: var(--primary);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
}

.btn--ghost::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--primary);
  transition: width var(--duration) var(--ease);
}

.btn--ghost:hover::after {
  width: 100%;
}

.btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap var(--duration) var(--ease);
}

.btn-arrow:hover {
  gap: var(--space-4);
}

/* 7. HEADER & NAVIGATION */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition: background-color var(--duration-lg) var(--ease),
              box-shadow var(--duration-lg) var(--ease);
}

.site-header.transparent {
  background-color: transparent;
}

.site-header.scrolled {
  background-color: var(--white);
  box-shadow: 0 1px 0 var(--neutral-200), var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-8);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-logo__img {
  height: 36px;
  width: auto;
  display: block;
  transition: opacity var(--duration) var(--ease);
}

.site-logo__img.logo-white {
  display: none;
}

.site-logo__img.logo-dark {
  display: block;
}

/* transparent header needs the white logo */
.site-header.transparent .site-logo__img.logo-white {
  display: block;
}

.site-header.transparent .site-logo__img.logo-dark {
  display: none;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--neutral-700);
  transition: color var(--duration) var(--ease);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--primary);
  transition: width var(--duration) var(--ease);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.site-header.transparent .nav-link {
  color: rgba(255,255,255,0.85);
}

.site-header.transparent .nav-link:hover {
  color: var(--white);
}

.nav-cta {
  background-color: var(--primary);
  color: var(--white) !important;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--duration) var(--ease);
}

.nav-cta:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(200,16,46,0.3);
}

.nav-cta::after { display: none !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background-color: var(--neutral-900);
  transition: all var(--duration) var(--ease);
  transform-origin: center;
}

.site-header.transparent .nav-toggle span {
  background-color: var(--white);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background-color: var(--white);
  padding: var(--space-6) var(--space-6) var(--space-8);
  border-top: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-xl);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration) var(--ease);
  z-index: calc(var(--z-nav) - 1);
}

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

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.mobile-nav-link {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--neutral-700);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--neutral-100);
  transition: color var(--duration) var(--ease);
}

.mobile-nav-link:hover {
  color: var(--primary);
}

/* 8. HERO */
.hero {
  position: relative;
  height: 100svh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--neutral-900);
}

.hero__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  transform: scale(1.05);
  transition: transform 8s var(--ease);
  will-change: transform;
}

.hero__bg.loaded {
  transform: scale(1);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 10, 0.80) 0%,
    rgba(10, 10, 10, 0.50) 50%,
    rgba(10, 10, 10, 0.30) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero__eyebrow {
  margin-bottom: var(--space-6);
  color: rgba(255,255,255,0.7);
}

.hero__eyebrow::before {
  background-color: rgba(255,255,255,0.5);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}

.hero__title em {
  font-style: italic;
  color: rgba(255,255,255,0.75);
}

.hero__subtitle {
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: scrollBounce 2.5s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.5; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 0.9; }
}

/* 9. SECTION HEADERS */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-header .eyebrow {
  justify-content: center;
  margin-bottom: var(--space-4);
}

.section-header .eyebrow::before {
  display: none;
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--neutral-500);
  font-size: var(--text-lg);
  font-weight: 300;
  line-height: 1.7;
}

/* 10. SOBRE */
.sobre {
  background-color: var(--white);
}

.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.sobre__label {
  margin-bottom: var(--space-6);
}

.sobre__title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: var(--space-6);
  line-height: 1.2;
}

.sobre__text {
  font-size: var(--text-lg);
  font-weight: 300;
  line-height: 1.8;
  color: var(--neutral-500);
  margin-bottom: var(--space-8);
}

.sobre__values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

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

.value-item__icon {
  width: 36px;
  height: 36px;
  background-color: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-item__icon svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.value-item__text h4 {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: 2px;
}

.value-item__text p {
  font-size: var(--text-xs);
  color: var(--neutral-500);
  line-height: 1.5;
}

.sobre__image-wrap {
  position: relative;
}

.sobre__image {
  width: 100%;
  height: 580px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.sobre__badge {
  position: absolute;
  bottom: -var(--space-6);
  left: -var(--space-6);
  bottom: -24px;
  left: -24px;
  background-color: var(--primary);
  color: var(--white);
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
}

.sobre__badge-num {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1;
  display: block;
}

.sobre__badge-label {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-top: var(--space-1);
  display: block;
}

/* 11. SERVICES */
.servicos {
  background-color: var(--neutral-100);
}

.servicos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-card {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-10) var(--space-8);
  border: 1px solid var(--neutral-200);
  transition: all var(--duration-lg) var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-lg) var(--ease);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  transition: background-color var(--duration) var(--ease);
}

.service-card:hover .service-card__icon {
  background-color: var(--primary);
}

.service-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
  transition: color var(--duration) var(--ease);
}

.service-card:hover .service-card__icon svg {
  color: var(--white);
}

.service-card__num {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  color: var(--neutral-300);
  font-weight: 400;
  margin-bottom: var(--space-2);
  display: block;
}

.service-card__title {
  font-family: var(--font-sans);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-4);
  line-height: 1.3;
}

.service-card__text {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--neutral-500);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

/* 12. STATS */
.stats {
  background-color: var(--primary);
  padding: var(--space-20) 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.stat-item {
  text-align: center;
  padding: var(--space-6);
  border-right: 1px solid rgba(255,255,255,0.15);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item__num {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1;
  display: block;
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-size: var(--text-sm);
  font-weight: 300;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* 13. OBRAS (PORTFOLIO) */
.obras {
  background-color: var(--white);
}

.obras__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.obra-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--neutral-900);
  position: relative;
  aspect-ratio: 4/3;
}

.obra-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-lg) var(--ease), opacity var(--duration-lg) var(--ease);
}

.obra-card:hover .obra-card__img {
  transform: scale(1.06);
  opacity: 0.7;
}

.obra-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
}

.obra-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  background-color: rgba(200,16,46,0.15);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
  backdrop-filter: blur(4px);
  width: fit-content;
}

.obra-card__title {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: var(--space-1);
}

.obra-card__location {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  font-weight: 300;
}

.obra-card__action {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 40px;
  height: 40px;
  background-color: var(--white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--duration) var(--ease);
}

.obra-card:hover .obra-card__action {
  opacity: 1;
  transform: scale(1);
}

.obra-card__action svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.obras__footer {
  text-align: center;
}

/* 14. CTA BANNER */
.cta-banner {
  background-color: var(--neutral-900);
  position: relative;
  overflow: hidden;
  padding: var(--space-24) 0;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  background: linear-gradient(135deg, transparent 0%, rgba(200,16,46,0.08) 100%);
}

.cta-banner__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
}

.cta-banner__label {
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-5);
}

.cta-banner__label::before {
  background-color: rgba(255,255,255,0.3);
}

.cta-banner__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 0;
}

.cta-banner__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

/* 15. FOOTER */
.site-footer {
  background-color: var(--neutral-900);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer__logo {
  margin-bottom: var(--space-5);
}

.footer__logo .site-logo__name,
.footer__logo .site-logo__sub {
  color: var(--white);
}

.footer__tagline {
  font-size: var(--text-base);
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.45);
  transition: all var(--duration) var(--ease);
}

.footer__social:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.footer__social svg {
  width: 16px;
  height: 16px;
}

.footer__heading {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: var(--space-6);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-sm);
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  transition: color var(--duration) var(--ease);
}

.footer__link:hover {
  color: var(--white);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer__contact-icon {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__contact-text {
  font-size: var(--text-sm);
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__legal {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.25);
  font-weight: 300;
}

/* 16. PAGE HERO (inner pages) */
.page-hero {
  background-color: var(--neutral-900);
  padding: 160px 0 var(--space-24);
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--primary), transparent);
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.2;
}

.page-hero__content {
  position: relative;
  z-index: 1;
}

.page-hero .eyebrow {
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-5);
}

.page-hero .eyebrow::before {
  background-color: var(--primary);
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  margin-bottom: var(--space-5);
}

.page-hero p {
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.breadcrumb__item {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  transition: color var(--duration) var(--ease);
}

.breadcrumb__item:hover {
  color: rgba(255,255,255,0.7);
}

.breadcrumb__sep {
  color: rgba(255,255,255,0.2);
  font-size: var(--text-xs);
}

/* 17. FORMS */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--neutral-900);
  background-color: var(--white);
  border: 1.5px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(200,16,46,0.08);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

/* 18. CARDS - Serviço detalhe */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--neutral-100);
  border-radius: var(--radius-sm);
}

.spec-item__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--primary);
  flex-shrink: 0;
  margin-top: 8px;
}

.spec-item__text {
  font-size: var(--text-sm);
  color: var(--neutral-700);
  line-height: 1.5;
  font-weight: 300;
}

/* 19. DIVIDERS */
.divider {
  width: 48px;
  height: 2px;
  background-color: var(--primary);
  margin: var(--space-6) 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* 20. UTILITIES */
.text-center { text-align: center; }
.text-white  { color: var(--white); }
.text-muted  { color: var(--neutral-500); }
.text-primary { color: var(--primary); }

.bg-light  { background-color: var(--neutral-100); }
.bg-dark   { background-color: var(--neutral-900); }
.bg-white  { background-color: var(--white); }
.bg-primary { background-color: var(--primary); }

.mt-auto { margin-top: auto; }

/* Fade-in animation on scroll */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }

/* 21. RESPONSIVE */
@media (max-width: 1024px) {
  :root { --container-pad: 1.5rem; }

  .sobre__grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .sobre__image { height: 400px; }
  .sobre__badge { display: none; }

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

  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.15); }
  .stat-item:nth-child(3), .stat-item:nth-child(4) { border-bottom: none; }

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

  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }

  .cta-banner__inner { flex-direction: column; text-align: center; }

  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 768px) {
  :root { --container-pad: 1.25rem; }

  .section { padding: var(--space-16) 0; }
  .section--lg { padding: var(--space-20) 0; }

  .sobre__values { grid-template-columns: 1fr; }
  .servicos__grid { grid-template-columns: 1fr; }
  .obras__grid { grid-template-columns: 1fr; }

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

  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }

  .hero__actions { flex-direction: column; align-items: flex-start; }

  .section-header { margin-bottom: var(--space-10); }
}

@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .stat-item { border: none; border-bottom: 1px solid rgba(255,255,255,0.15); }
  .stat-item:nth-child(3), .stat-item:nth-child(4) { border-bottom: none; }
}