/* ===== CSS Variables ===== */
:root {
  --color-primary: #8B4513;
  --color-primary-dark: #6B3410;
  --color-primary-light: #D4A574;
  --color-accent: #C75B39;
  --color-accent-light: #E8A598;
  --color-wood: #A0522D;
  --color-terracotta: #CD5C5C;
  --color-text: #2C1810;
  --color-text-light: #5D4037;
  --color-text-muted: #8D6E63;
  --color-bg: #FDF8F3;
  --color-bg-light: #FFFFFF;
  --color-bg-warm: #FAF0E6;
  --color-border: #E8D5C4;
  --color-success: #5D8C3A;
  --shadow-sm: 0 1px 3px rgba(44, 24, 16, 0.08);
  --shadow: 0 4px 12px rgba(44, 24, 16, 0.1);
  --shadow-lg: 0 12px 32px rgba(44, 24, 16, 0.15);
  --shadow-xl: 0 20px 48px rgba(44, 24, 16, 0.2);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

img {
  max-width: 100%;
  height: auto;
}

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

ul {
  list-style: none;
}

/* ===== Typography ===== */
.section-label {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 10px 20px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: clamp(28px, 5vw, 40px);
  color: var(--color-text);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-terracotta) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(199, 91, 57, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(199, 91, 57, 0.45);
}

.btn-secondary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(139, 69, 19, 0.3);
}

.btn-secondary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-small {
  padding: 12px 24px;
  font-size: 14px;
}

.btn-full {
  width: 100%;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(253, 248, 243, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

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

.logo i {
  font-size: 32px;
  color: var(--color-primary);
}

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

.logo-main {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.logo-sub {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  transition: var(--transition);
  position: relative;
}

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

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

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

.nav-contacts {
  display: flex;
  align-items: center;
  gap: 20px;
}

.phone-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  transition: var(--transition);
}

.phone-link i {
  color: var(--color-accent);
  font-size: 20px;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--color-text);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('../images/hero-bg-new.jpg') center center / cover no-repeat;
  padding: 100px 0 60px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(253, 248, 243, 0.85) 0%, rgba(253, 248, 243, 0.6) 40%, rgba(253, 248, 243, 0.3) 100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--color-bg) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  max-width: 700px;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: white;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}

.hero-badge i {
  color: var(--color-accent);
}

.hero h1 {
  font-size: clamp(36px, 6vw, 52px);
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--color-text);
}

.hero-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 18px;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Services Section ===== */
.services {
  padding: 60px 0;
  background: var(--color-bg-light);
}

.services-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: white;
  border: 2px solid var(--color-border);
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn i {
  font-size: 20px;
}

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

.tab-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: white;
  padding: 36px 28px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-light);
}

.service-card--large {
  grid-column: span 1;
}

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--color-bg-warm);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.service-icon i {
  font-size: 28px;
  color: var(--color-primary);
}

.service-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.service-card p {
  color: var(--color-text-light);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== Benefits Section ===== */
.benefits {
  padding: 60px 0;
  background: var(--color-bg-warm);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.benefit-card {
  background: white;
  padding: 36px 28px;
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.benefit-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.benefit-icon i {
  font-size: 32px;
  color: white;
}

.benefit-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.benefit-card p {
  color: var(--color-text-light);
  font-size: 15px;
}

/* ===== Workflow Section ===== */
.workflow {
  padding: 60px 0;
  background: var(--color-bg-light);
}

.workflow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.workflow-step {
  background: white;
  padding: 32px 24px;
  border-radius: var(--radius-xl);
  text-align: center;
  min-width: 180px;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--color-border);
  position: relative;
}

.step-number {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: white;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 50px;
}

.step-icon {
  width: 60px;
  height: 60px;
  background: var(--color-bg-warm);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 12px auto 20px;
}

.step-icon i {
  font-size: 28px;
  color: var(--color-primary);
}

.workflow-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.workflow-step p {
  font-size: 14px;
  color: var(--color-text-light);
}

.workflow-arrow {
  color: var(--color-accent);
  font-size: 24px;
}

.workflow-arrow i {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===== Reviews Section ===== */
.reviews {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-warm) 100%);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

.review-card {
  background: white;
  padding: 32px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
}

.review-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-light);
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 24px;
  font-family: Georgia, serif;
  font-size: 80px;
  color: var(--color-bg-warm);
  line-height: 1;
  pointer-events: none;
}

.review-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.review-stars i {
  font-size: 18px;
  color: #FFB800;
}

.review-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  background: var(--color-bg-warm);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.review-avatar i {
  font-size: 24px;
  color: var(--color-primary);
}

.review-info {
  display: flex;
  flex-direction: column;
}

.review-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.review-project {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===== Portfolio Section ===== */
.portfolio {
  padding: 60px 0;
  background: var(--color-bg-warm);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.portfolio-item {
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.portfolio-image {
  aspect-ratio: 4/3;
  background: var(--color-bg);
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.05);
}

.portfolio-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  gap: 12px;
}

.portfolio-placeholder i {
  font-size: 48px;
}

.portfolio-info {
  padding: 24px;
}

.portfolio-info h4 {
  font-size: 18px;
  margin-bottom: 6px;
}

.portfolio-info p {
  font-size: 14px;
  color: var(--color-text-light);
}

.portfolio-cta {
  text-align: center;
  padding: 48px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.portfolio-cta p {
  font-size: 20px;
  margin-bottom: 24px;
  color: var(--color-text);
}

/* ===== Contact Section ===== */
.contact {
  padding: 60px 0;
  background: var(--color-bg-light);
}

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

.contact-content h2 {
  font-size: 36px;
  margin-bottom: 20px;
}

.contact-desc {
  font-size: 18px;
  color: var(--color-text-light);
  margin-bottom: 40px;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 20px;
}

.contact-info-icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-warm);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-icon i {
  font-size: 24px;
  color: var(--color-primary);
}

.contact-info-icon.whatsapp {
  background: #DCFCE7;
}

.contact-info-icon.whatsapp i {
  color: #16A34A;
}

.contact-info-text span {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-info-text a,
.contact-info-text p {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: var(--color-text);
}

.contact-form-wrapper {
  background: white;
  padding: 40px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.contact-form h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.contact-form > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: 'Open Sans', sans-serif;
  font-size: 15px;
  transition: var(--transition);
  background: white;
}

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

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

.form-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 16px;
}

.form-note i {
  color: var(--color-success);
}

/* ===== Map Section ===== */
.map-section {
  line-height: 0;
}

.map-container iframe {
  display: block;
  width: 100%;
  border: none;
}

/* ===== Calculator Section ===== */
.calculator {
  padding: 60px 0;
  background: var(--color-bg-warm);
}

.calculator-wrapper {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
}

.calc-step {
  display: none;
  animation: fadeIn 0.4s ease;
}

.calc-step.active {
  display: block;
}

.calc-step h3 {
  text-align: center;
  margin-bottom: 32px;
  font-size: 24px;
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.calc-options--vertical {
  grid-template-columns: 1fr;
}

.calc-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 20px;
  background: white;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.calc-option:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.calc-option.selected {
  border-color: var(--color-accent);
  background: var(--color-bg-warm);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.calc-option i {
  font-size: 40px;
  color: var(--color-primary);
}

.calc-option.selected i {
  color: var(--color-accent);
}

.calc-option span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 15px;
}

.calc-option--large {
  flex-direction: row;
  justify-content: space-between;
  text-align: left;
  padding: 24px;
}

.calc-option-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 6px;
}

.calc-option-desc {
  font-size: 14px;
  color: var(--color-text-light);
}

.calc-option-price {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-accent);
  white-space: nowrap;
}

.calc-range {
  padding: 24px 0;
}

.calc-range input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--color-border);
  outline: none;
  -webkit-appearance: none;
}

.calc-range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(199, 91, 57, 0.4);
}

.calc-range input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(199, 91, 57, 0.4);
}

.calc-range-value {
  text-align: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: 16px;
}

.calc-nav {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

.calc-progress {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  margin-top: 32px;
  overflow: hidden;
}

.calc-progress-bar {
  height: 100%;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 0.4s ease;
  width: 20%;
}

/* Calculator Result */
.calc-result {
  text-align: center;
}

.calc-result h3 {
  margin-bottom: 16px;
}

.calc-result-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.calc-result-note {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.calc-result-details {
  background: var(--color-bg-warm);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 32px;
  text-align: left;
}

.calc-detail {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.calc-detail:last-child {
  border-bottom: none;
}

.calc-detail span:first-child {
  color: var(--color-text-light);
}

.calc-detail span:last-child {
  font-weight: 600;
}

.calc-whatsapp {
  background: var(--color-bg-warm);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
}

.calc-whatsapp h4 {
  margin-bottom: 12px;
  font-size: 18px;
}

.calc-whatsapp-note {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 20px;
}

.calc-restart {
  margin-top: 16px;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-text);
  color: white;
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand .logo-main {
  color: white;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-top: 16px;
}

.footer-links h4,
.footer-contacts h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 24px;
  color: white;
}

.footer-links li,
.footer-contacts li {
  margin-bottom: 12px;
}

.footer-links a,
.footer-contacts a {
  color: var(--color-text-muted);
  font-size: 15px;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

.footer-bottom p {
  margin-bottom: 8px;
}

/* ===== Floating WhatsApp Button ===== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 64px;
  height: 64px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-float i {
  font-size: 32px;
  color: white;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6); }
}

/* ===== Modal ===== */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}

.modal-content {
  position: relative;
  background: white;
  padding: 40px;
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 420px;
  z-index: 1;
  animation: modalSlide 0.3s ease;
}

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-content h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.modal-content > p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .workflow-steps {
    flex-direction: column;
  }
  
  .workflow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 768px) {
  
  .workflow-steps {
    flex-direction: column;
  }
  
  .workflow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 768px) {
  .header .logo {
    display: none;
  }
  
  .nav {
    justify-content: flex-end;
  }
  
  .nav-contacts {
    flex: 1;
    justify-content: space-between;
    gap: 8px;
  }
  
  .phone-link {
    font-size: 13px;
    white-space: nowrap;
  }
  
  .phone-link span {
    white-space: nowrap;
  }
  
  .btn-small {
    padding: 10px 16px;
    font-size: 12px;
    white-space: nowrap;
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .services-tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .review-card {
    padding: 24px;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .calculator-wrapper {
    padding: 28px;
  }
  
  .calc-options {
    grid-template-columns: 1fr;
  }
  
  .calc-option--large {
    flex-direction: column;
    text-align: center;
  }
  
  .calc-result-price {
    font-size: 32px;
  }
  
  .contact-form-wrapper {
    padding: 28px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .whatsapp-float {
    width: 56px;
    height: 56px;
    bottom: 20px;
    right: 20px;
  }
  
  .whatsapp-float i {
    font-size: 28px;
  }
}

/* ===== Animations ===== */
.animate-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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