/* ============================================================
   KAIÊ ENGENHARIA DE IA — Folha de Estilos Principal
   ============================================================ */

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

:root {
  /* Paleta de cores */
  --blue-900:   #1e3a8a;
  --blue-800:   #1e40af;
  --blue-700:   #1d4ed8;
  --blue-600:   #2563eb;
  --blue-500:   #3b82f6;
  --blue-400:   #60a5fa;
  --blue-200:   #bfdbfe;
  --blue-100:   #dbeafe;
  --blue-50:    #eff6ff;
  --yellow-400: #facc15;
  --yellow-500: #eab308;
  --yellow-600: #ca8a04;
  --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:    #f9fafb;
  --white:      #ffffff;
  --whatsapp:   #25d366;

  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

  /* Sombras */
  --shadow-sm:  0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px -5px rgba(0,0,0,.1), 0 10px 10px -5px rgba(0,0,0,.04);

  /* Transições */
  --transition: all .25s ease;
}

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

body {
  font-family: var(--font-sans);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul { list-style: none; }

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

/* ---------- Utilitários ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-tag {
  display: inline-block;
  padding: .35rem 1rem;
  border-radius: 9999px;
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 1rem;
}

.section-tag--blue {
  background: var(--blue-100);
  color: var(--blue-700);
}

.section-tag--yellow {
  background: rgba(250,204,21,.15);
  color: var(--yellow-600);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--gray-900);
}

.section-title span,
.highlight {
  background: linear-gradient(to right, var(--blue-600), var(--blue-800));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: .75rem auto 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: .5rem;
  font-weight: 600;
  font-size: .9375rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(to right, var(--yellow-500), var(--yellow-600));
  color: var(--gray-900);
}

.btn--primary:hover {
  background: linear-gradient(to right, var(--yellow-400), var(--yellow-500));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}

.btn--outline:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.7);
}

.btn--blue {
  background: linear-gradient(to right, var(--blue-600), var(--blue-800));
  color: var(--white);
}

.btn--blue:hover {
  background: linear-gradient(to right, var(--blue-500), var(--blue-700));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--sm {
  padding: .5rem 1.25rem;
  font-size: .875rem;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-md);
  padding: .75rem 0;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
}

.navbar__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(to right bottom, var(--yellow-400), var(--yellow-600));
  border-radius: .375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
  color: var(--gray-900);
}

.navbar__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.navbar__logo-text strong {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--gray-900);
  letter-spacing: .05em;
}

.navbar__logo-text span {
  font-size: .55rem;
  font-weight: 600;
  color: var(--gray-500);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.navbar.hero-mode .navbar__logo-text strong,
.navbar.hero-mode .navbar__logo-text span {
  color: var(--white);
}

.navbar.hero-mode .navbar__logo-text span {
  color: rgba(255,255,255,.7);
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.navbar__nav a {
  padding: .5rem .875rem;
  border-radius: .375rem;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition);
}

.navbar.hero-mode .navbar__nav a {
  color: rgba(255,255,255,.85);
}

.navbar__nav a:hover,
.navbar__nav a.active {
  color: var(--blue-600);
  background: var(--blue-50);
}

.navbar.hero-mode .navbar__nav a:hover {
  color: var(--white);
  background: rgba(255,255,255,.1);
}

.navbar__cta {
  background: linear-gradient(to right, var(--yellow-500), var(--yellow-600));
  color: var(--gray-900) !important;
  padding: .5rem 1.25rem !important;
  border-radius: .5rem !important;
  font-weight: 700 !important;
}

.navbar__cta:hover {
  background: linear-gradient(to right, var(--yellow-400), var(--yellow-500)) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: .5rem;
  background: none;
  border: none;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar.hero-mode .navbar__hamburger span {
  background: var(--white);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  background: linear-gradient(to right bottom, var(--blue-900), var(--blue-800), #0f172a);
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(59,130,246,.15) 0%, transparent 70%);
  pointer-events: none;
}

/* Partículas decorativas */
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(250,204,21,.15);
  animation: float 6s ease-in-out infinite;
}

.hero__particle:nth-child(1) { width:80px; height:80px; top:10%; left:5%; animation-delay:0s; }
.hero__particle:nth-child(2) { width:50px; height:50px; top:70%; left:10%; animation-delay:1s; }
.hero__particle:nth-child(3) { width:120px; height:120px; top:20%; right:15%; animation-delay:2s; }
.hero__particle:nth-child(4) { width:40px; height:40px; top:80%; right:20%; animation-delay:.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.05); }
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  padding: .4rem 1rem;
  border-radius: 9999px;
  color: rgba(255,255,255,.9);
  font-size: .875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--yellow-400);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .6; transform: scale(.85); }
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.hero__title .highlight {
  background: linear-gradient(to right, var(--yellow-400), var(--yellow-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.0625rem;
  color: rgba(255,255,255,.75);
  max-width: 480px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero__stats {
  display: flex;
  gap: 2rem;
}

.hero__stat-value {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--yellow-400);
  line-height: 1;
}

.hero__stat-label {
  font-size: .8125rem;
  color: rgba(255,255,255,.6);
  margin-top: .25rem;
}

.hero__visual {
  position: relative;
  z-index: 1;
}

.hero__image-wrapper {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image-wrapper img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.hero__card {
  position: absolute;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-radius: .75rem;
  padding: .75rem 1rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: .75rem;
}

.hero__card--tl {
  top: 1.5rem;
  left: -1rem;
}

.hero__card--br {
  bottom: 1.5rem;
  right: -1rem;
}

.hero__card-icon {
  width: 36px;
  height: 36px;
  border-radius: .5rem;
  background: linear-gradient(to right bottom, var(--blue-600), var(--blue-800));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1rem;
  flex-shrink: 0;
}

.hero__card-title {
  font-size: .875rem;
  font-weight: 700;
  color: var(--gray-900);
}

.hero__card-sub {
  font-size: .75rem;
  color: var(--gray-500);
}

.hero__card--br .hero__card-value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--yellow-500);
  line-height: 1;
}

.hero__card--br .hero__card-label {
  font-size: .75rem;
  font-weight: 700;
  color: var(--gray-700);
}

.hero__card--br .hero__card-sub {
  font-size: .6875rem;
  color: var(--gray-500);
}

/* ---------- Serviços ---------- */
.services {
  padding: 5rem 0;
  background: linear-gradient(to right bottom, var(--gray-50), var(--blue-50));
}

.services__header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--blue-600), var(--blue-800));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

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

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

.service-card__icon {
  width: 56px;
  height: 56px;
  border-radius: .75rem;
  background: linear-gradient(to right bottom, var(--blue-600), var(--blue-800));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
  color: var(--white);
}

.service-card__title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: .75rem;
  line-height: 1.3;
}

.service-card__desc {
  font-size: .9375rem;
  color: var(--gray-600);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.service-card__list {
  margin-bottom: 1.5rem;
}

.service-card__list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--gray-700);
  padding: .3rem 0;
}

.service-card__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-600);
  flex-shrink: 0;
}

/* ---------- Sobre ---------- */
.about {
  padding: 5rem 0;
  background: var(--white);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__image-wrapper {
  position: relative;
}

.about__image {
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about__image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.about__stats-card {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--white);
  border-radius: 1rem;
  padding: 1.25rem 1.75rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  gap: 2rem;
}

.about__stat-value {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--blue-600);
  line-height: 1;
}

.about__stat-label {
  font-size: .8125rem;
  color: var(--gray-500);
  margin-top: .25rem;
}

.about__content { }

.about__text {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.about__pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.pillar {
  display: flex;
  gap: .875rem;
  align-items: flex-start;
}

.pillar__icon {
  width: 40px;
  height: 40px;
  border-radius: .625rem;
  background: linear-gradient(to right bottom, var(--blue-600), var(--blue-800));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1rem;
  flex-shrink: 0;
}

.pillar__title {
  font-size: .9375rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: .2rem;
}

.pillar__desc {
  font-size: .8125rem;
  color: var(--gray-500);
  line-height: 1.5;
}

/* ---------- Portfólio ---------- */
.portfolio {
  padding: 5rem 0;
  background: linear-gradient(to right bottom, var(--gray-50), var(--blue-50));
}

.portfolio__header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.portfolio-card {
  background: var(--white);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

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

.portfolio-card__image {
  position: relative;
  overflow: hidden;
  height: 180px;
}

.portfolio-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.portfolio-card:hover .portfolio-card__image img {
  transform: scale(1.05);
}

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,58,138,.7), transparent);
}

.portfolio-card__body {
  padding: 1.25rem;
}

.portfolio-card__tag {
  display: inline-block;
  padding: .25rem .75rem;
  border-radius: 9999px;
  font-size: .75rem;
  font-weight: 600;
  margin-bottom: .75rem;
}

.tag--chatbot    { background: rgba(59,130,246,.15);  color: var(--blue-700); }
.tag--ml         { background: rgba(168,85,247,.15);  color: #7c3aed; }
.tag--automation { background: rgba(16,185,129,.15);  color: #059669; }
.tag--cv         { background: rgba(245,158,11,.15);  color: #d97706; }
.tag--conv       { background: rgba(236,72,153,.15);  color: #db2777; }
.tag--dl         { background: rgba(239,68,68,.15);   color: #dc2626; }

.portfolio-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: .5rem;
  line-height: 1.3;
}

.portfolio-card__desc {
  font-size: .875rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* ---------- Contato ---------- */
.contact {
  padding: 5rem 0;
  background: var(--white);
}

.contact__header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.contact__info {
  background: linear-gradient(to right bottom, var(--blue-700), var(--blue-900));
  border-radius: 1.25rem;
  padding: 2.5rem;
  color: var(--white);
}

.contact__info-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: .75rem;
}

.contact__info-desc {
  font-size: .9375rem;
  color: rgba(255,255,255,.75);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact__detail-icon {
  width: 40px;
  height: 40px;
  border-radius: .5rem;
  background: rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact__detail-label {
  font-size: .8125rem;
  color: rgba(255,255,255,.6);
  margin-bottom: .2rem;
}

.contact__detail-value {
  font-size: .9375rem;
  font-weight: 600;
  color: var(--white);
}

.contact__detail-value a {
  color: var(--white);
  text-decoration: none;
}

.contact__detail-value a:hover {
  color: var(--yellow-400);
}

.contact__map {
  margin-top: 1.75rem;
  border-radius: .75rem;
  overflow: hidden;
}

.contact__map img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

/* Formulário */
.contact__form-wrapper {
  background: var(--gray-50);
  border-radius: 1.25rem;
  padding: 2.5rem;
  border: 1px solid var(--gray-200);
}

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

.form-label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: .4rem;
}

.form-label .required {
  color: #ef4444;
  margin-left: .2rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--gray-300);
  border-radius: .5rem;
  font-size: .9375rem;
  font-family: var(--font-sans);
  color: var(--gray-900);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}

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

.form-input:focus,
.form-textarea:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-submit {
  width: 100%;
  padding: .875rem;
  background: linear-gradient(to right, var(--blue-600), var(--blue-800));
  color: var(--white);
  border: none;
  border-radius: .5rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}

.form-submit:hover {
  background: linear-gradient(to right, var(--blue-500), var(--blue-700));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
  color: #059669;
  font-weight: 600;
  font-size: 1.0625rem;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,.75);
  padding: 3.5rem 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
}

.footer__brand-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(to right bottom, var(--yellow-400), var(--yellow-600));
  border-radius: .375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: .875rem;
  color: var(--gray-900);
}

.footer__brand-name strong {
  font-size: 1.125rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: .05em;
}

.footer__brand-name span {
  display: block;
  font-size: .5rem;
  font-weight: 600;
  color: rgba(255,255,255,.5);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.footer__brand-desc {
  font-size: .9rem;
  line-height: 1.65;
  color: rgba(255,255,255,.55);
}

.footer__col-title {
  font-size: .9375rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: .625rem;
}

.footer__links a {
  font-size: .9rem;
  color: rgba(255,255,255,.55);
  transition: var(--transition);
}

.footer__links a:hover {
  color: var(--yellow-400);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: .625rem;
  font-size: .9rem;
  color: rgba(255,255,255,.55);
  margin-bottom: .625rem;
}

.footer__contact-item a {
  color: rgba(255,255,255,.55);
  transition: var(--transition);
}

.footer__contact-item a:hover {
  color: var(--yellow-400);
}

.footer__bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copyright {
  font-size: .875rem;
  color: rgba(255,255,255,.4);
}

.footer__legal {
  display: flex;
  gap: 1.5rem;
}

.footer__legal a {
  font-size: .875rem;
  color: rgba(255,255,255,.4);
  transition: var(--transition);
}

.footer__legal a:hover {
  color: var(--yellow-400);
}

/* ---------- WhatsApp Float ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: var(--whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  transition: var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,.5);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: var(--white);
}

.whatsapp-float__tooltip {
  position: absolute;
  right: 68px;
  background: var(--gray-900);
  color: var(--white);
  font-size: .8125rem;
  font-weight: 600;
  padding: .4rem .875rem;
  border-radius: .375rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

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

/* ---------- Responsivo ---------- */
@media (max-width: 1024px) {
  .services__grid,
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar__nav,
  .navbar__cta-wrapper {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .navbar__mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(8px);
    padding: 1rem 1.5rem 1.5rem;
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    gap: .25rem;
  }

  .navbar__mobile-menu.open {
    display: flex;
  }

  .navbar__mobile-menu a {
    padding: .75rem 1rem;
    border-radius: .5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
  }

  .navbar__mobile-menu a:hover {
    background: var(--blue-50);
    color: var(--blue-600);
  }

  .navbar__mobile-menu .navbar__cta {
    margin-top: .5rem;
    text-align: center;
    justify-content: center;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .hero__description { margin-left: auto; margin-right: auto; }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; }

  .hero__card--tl { left: .5rem; }
  .hero__card--br { right: .5rem; }

  .about__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about__stats-card {
    position: static;
    margin-top: 1.5rem;
    justify-content: center;
  }

  .services__grid,
  .portfolio__grid {
    grid-template-columns: 1fr;
  }

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

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

@media (max-width: 480px) {
  .hero__title { font-size: 1.875rem; }
  .section-title { font-size: 1.625rem; }
  .about__pillars { grid-template-columns: 1fr; }
}