/* =========================================
   ESC ENGENHARIA ESTRUTURAL – MAIN STYLESHEET
   ========================================= */

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors */
  --blue-900: #0d1f3c;
  --blue-800: #112d55;
  --blue-700: #1a3f72;
  --blue-600: #1e4d8c;
  --blue-500: #2563a8;
  --blue-400: #3b82c4;
  --blue-300: #60a5d4;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;

  --accent-green: #10b981;
  --accent-green-dark: #059669;

  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50:  #f8f9fc;

  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(13,31,60,.1);
  --shadow-lg: 0 10px 40px rgba(13,31,60,.15);
  --shadow-xl: 0 20px 60px rgba(13,31,60,.2);

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Montserrat', sans-serif;

  /* Spacing */
  --section-py: 90px;
  --container: 1200px;

  /* Transitions */
  --transition: 0.3s ease;
  --transition-slow: 0.6s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* ===== CONTAINER ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 99, 168, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
  box-shadow: 0 6px 20px rgba(37, 99, 168, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 1rem;
  border-radius: 10px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
  border-radius: 10px;
}

/* ===== SECTION COMMON ===== */
.section {
  padding: var(--section-py) 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: var(--blue-100);
  color: var(--blue-600);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--blue-900);
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: var(--blue-900);
  padding: 12px 0;
  box-shadow: var(--shadow-lg);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-300));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37,99,168,0.4);
}

.logo-icon span {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--white);
  letter-spacing: 0.05em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text strong {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--white);
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--blue-300);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

.nav-cta {
  margin-left: 8px;
  flex-shrink: 0;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: linear-gradient(160deg, var(--blue-900) 0%, var(--blue-700) 55%, var(--blue-500) 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 100px;
  padding-bottom: 80px;
}

/* Subtle geometric pattern overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(255,255,255,0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 50%),
    linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.015) 50%, transparent 52%),
    linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.015) 50%, transparent 52%);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--blue-100);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero-title .highlight {
  color: var(--blue-300);
  position: relative;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-info {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  max-width: 480px;
}

.hero-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-info-item i {
  font-size: 1.4rem;
  color: var(--blue-300);
  flex-shrink: 0;
}

.hero-info-item div {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.hero-info-item strong {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.hero-info-item span {
  font-size: 0.9rem;
  color: var(--white);
  font-weight: 500;
}

.hero-info-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}

/* Hero Visual Cards */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 420px;
}

.hero-card-stack {
  position: relative;
  width: 340px;
  height: 340px;
}

.hero-central {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(37,99,168,0.5);
  z-index: 5;
}

.hero-central i {
  font-size: 2.5rem;
  color: var(--white);
}

.hero-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 18px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  backdrop-filter: blur(16px);
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  width: 130px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  z-index: 4;
  animation: float 4s ease-in-out infinite;
}

.hero-card i {
  font-size: 1.8rem;
  color: var(--blue-300);
}

.card-1 {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 0s;
}
.card-2 {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  animation-delay: 1.3s;
}
.card-3 {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 2.6s;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

.card-2 { animation: float-side 4s ease-in-out infinite; animation-delay: 1.3s; }
@keyframes float-side {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-50%) translateX(-8px); }
}

/* Hero Wave */
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
  display: block;
}

/* ===== SOBRE ===== */
.sobre {
  background: var(--gray-50);
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.sobre-content p {
  color: var(--gray-700);
  margin-bottom: 18px;
  font-size: 1.0rem;
  line-height: 1.8;
}

.sobre-content p strong {
  color: var(--blue-800);
}

.sobre-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-700);
  box-shadow: var(--shadow-sm);
}

.badge-item i {
  color: var(--blue-500);
  font-size: 1rem;
}

.sobre-card-primary {
  background: linear-gradient(160deg, var(--blue-900), var(--blue-700));
  border-radius: 20px;
  padding: 36px 32px;
  color: var(--white);
  box-shadow: var(--shadow-xl);
  margin-bottom: 20px;
}

.sobre-icon-wrap {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.15);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.sobre-icon-wrap i {
  font-size: 1.8rem;
  color: var(--blue-300);
}

.sobre-card-primary h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.sobre-card-primary p {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 20px;
}

.sobre-crea {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-100);
}

.sobre-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.sobre-stat {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.sobre-stat:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--blue-300);
}

.sobre-stat i {
  font-size: 1.4rem;
  color: var(--blue-500);
  margin-bottom: 4px;
}

.sobre-stat span {
  font-size: 0.75rem;
  color: var(--gray-500);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sobre-stat strong {
  font-size: 0.88rem;
  color: var(--blue-800);
  font-weight: 700;
  font-family: var(--font-heading);
}

/* ===== SERVIÇOS ===== */
.servicos {
  background: var(--white);
}

.servicos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.servico-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.servico-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.servico-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-300);
  transform: translateY(-6px);
}

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

.servico-card--wide {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 24px;
}

.servico-icon {
  width: 64px;
  height: 64px;
  background: var(--blue-50);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
  transition: all var(--transition);
}

.servico-card--wide .servico-icon {
  margin-bottom: 0;
}

.servico-card:hover .servico-icon {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
}

.servico-icon i {
  font-size: 1.6rem;
  color: var(--blue-600);
  transition: color var(--transition);
}

.servico-card:hover .servico-icon i {
  color: var(--white);
}

.servico-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 10px;
}

.servico-card p {
  font-size: 0.92rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ===== PROJETOS ===== */
.projetos {
  background: var(--gray-50);
}

.projetos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 50px;
}

.projeto-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--gray-200);
}

.projeto-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.projeto-thumb {
  height: 200px;
  position: relative;
  overflow: hidden;
}

.projeto-thumb--1 {
  background: linear-gradient(135deg, #1e3a5f 0%, #2d5a8e 100%);
}

.projeto-thumb--2 {
  background: linear-gradient(135deg, #1a3346 0%, #2a5070 100%);
}

.projeto-thumb--3 {
  background: linear-gradient(135deg, #163040 0%, #1e4d6b 100%);
}

.projeto-thumb--4 {
  background: linear-gradient(135deg, #1c2f4a 0%, #284668 100%);
}

/* Structural grid pattern inside thumbnails */
.projeto-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}

.projeto-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 2;
}

.projeto-overlay i {
  font-size: 3rem;
  color: rgba(255,255,255,0.6);
}

.projeto-overlay span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(255,255,255,0.08);
  padding: 4px 16px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.15);
}

.projeto-info {
  padding: 24px;
}

.projeto-info h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 10px;
}

.projeto-info p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 16px;
}

.projeto-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.projeto-tags span {
  background: var(--blue-50);
  color: var(--blue-700);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
}

.projetos-cta {
  text-align: center;
  background: linear-gradient(160deg, var(--blue-900), var(--blue-700));
  border-radius: 20px;
  padding: 48px 40px;
  color: var(--white);
}

.projetos-cta p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
  font-weight: 500;
}

/* ===== DIFERENCIAIS ===== */
.diferenciais {
  background: var(--white);
}

.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.diferencial-item {
  padding: 32px 28px;
  border-radius: 16px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  position: relative;
}

.diferencial-item:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-300);
  transform: translateY(-5px);
}

.diferencial-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(37,99,168,0.3);
}

.diferencial-icon i {
  font-size: 1.5rem;
  color: var(--white);
}

.diferencial-item h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 12px;
}

.diferencial-item p {
  font-size: 0.92rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ===== CONTATO ===== */
.contato {
  background: var(--gray-50);
}

.contato-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Form */
.contact-form {
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  position: relative;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--gray-300);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--gray-800);
  background: var(--white);
  transition: all var(--transition);
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37,99,168,0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #ef4444;
}

.form-error {
  font-size: 0.78rem;
  color: #ef4444;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: 12px;
  margin-top: 20px;
}

.form-success i {
  font-size: 2.5rem;
  color: var(--accent-green);
  margin-bottom: 12px;
  display: block;
}

.form-success strong {
  display: block;
  font-size: 1.05rem;
  color: #15803d;
  margin-bottom: 8px;
}

.form-success p {
  color: #166534;
  font-size: 0.9rem;
}

/* Contato Info */
.contato-info-card {
  background: linear-gradient(160deg, var(--blue-900), var(--blue-800));
  border-radius: 20px;
  padding: 36px 32px;
  color: var(--white);
  box-shadow: var(--shadow-xl);
  position: sticky;
  top: 100px;
}

.contato-info-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.contato-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.contato-icon-wrap {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contato-icon-wrap i {
  font-size: 1.1rem;
  color: var(--blue-300);
}

.whatsapp-icon {
  background: rgba(37, 211, 102, 0.15);
}
.whatsapp-icon i { color: #25d366; }

.instagram-icon {
  background: rgba(225, 48, 108, 0.15);
}
.instagram-icon i { color: #e1306c; }

.contato-item div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contato-item strong {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.contato-item span {
  font-size: 0.92rem;
  color: var(--white);
  font-weight: 500;
}

.whatsapp-link,
.instagram-link {
  font-size: 0.92rem;
  color: var(--white);
  font-weight: 500;
  transition: color var(--transition);
}
.whatsapp-link:hover { color: #25d366; }
.instagram-link:hover { color: #e1306c; }

.contato-social-buttons {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.btn-social {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.88rem;
  flex: 1;
  justify-content: center;
  transition: all var(--transition);
  font-family: var(--font-heading);
}

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
}
.btn-whatsapp:hover {
  background: #1db954;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37,211,102,0.35);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: var(--white);
}
.btn-instagram:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(225,48,108,0.35);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--blue-900);
  color: var(--white);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--blue-600);
  color: var(--white);
  transform: translateY(-3px);
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-300);
  margin-bottom: 20px;
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links ul li a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-services ul li {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  margin-bottom: 10px;
  padding-left: 14px;
  position: relative;
}

.footer-services ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--blue-400);
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  margin-bottom: 12px;
  line-height: 1.5;
}

.footer-contact p i {
  color: var(--blue-300);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-cta {
  margin-top: 20px;
}

.footer-bottom {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.8rem;
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
  transition: all var(--transition);
  animation: pulse-wa 3s ease-in-out infinite;
}

.whatsapp-float:hover {
  background: #1db954;
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37,211,102,0.6);
  animation: none;
}

.whatsapp-tooltip {
  position: absolute;
  right: 72px;
  background: var(--gray-900);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 6px;
  border-color: transparent transparent transparent var(--gray-900);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 6px 24px rgba(37,211,102,0.5); }
  50% { box-shadow: 0 6px 36px rgba(37,211,102,0.75), 0 0 0 10px rgba(37,211,102,0.1); }
}

/* ===== RESPONSIVE ===== */

/* Tablet – 1024px */
@media (max-width: 1024px) {
  :root { --section-py: 70px; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-info { justify-content: center; max-width: 100%; }

  .hero-visual { display: none; }

  .sobre-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .servicos-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .servico-card--wide {
    grid-column: span 2;
  }

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

  .diferenciais-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contato-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .contato-info-card {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

/* Mobile – 768px */
@media (max-width: 768px) {
  :root { --section-py: 56px; }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--blue-900);
    padding: 20px 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    gap: 4px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    z-index: 999;
  }

  .nav-links.open a {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 1rem;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding-top: 90px;
    padding-bottom: 60px;
  }

  .hero-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-lg { width: 100%; max-width: 320px; justify-content: center; }

  .hero-info {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

  .hero-info-divider {
    width: 60px;
    height: 1px;
  }

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

  .servico-card--wide {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .servico-card--wide .servico-icon {
    margin-bottom: 16px;
  }

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

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

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

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .contato-social-buttons {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .projetos-cta {
    padding: 36px 24px;
  }
}

/* Small – 480px */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-badge { font-size: 0.75rem; }

  .section-title { font-size: 1.6rem; }

  .hero-info-item div span {
    font-size: 0.82rem;
  }
}