:root {
  --azul-marinho: #0f1a30;
  --azul-profundo: #182b45;
  --azul-claro: #1e3d5e;
  --grafite: #1e293b;
  --cinza: #64748b;
  --cinza-claro: #f1f5f9;
  --branco: #ffffff;
  --dourado: #c89b3c;
  --dourado-claro: #d4a843;
  --laranja: #b86b2c;
  --borda: rgba(255, 255, 255, 0.14);
  --sombra: 0 20px 60px rgba(0, 0, 0, 0.22);
  --font-display: "Montserrat", sans-serif;
  --font-body: "Montserrat", sans-serif;
  --header-h: 78px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--grafite);
  background: var(--branco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul { list-style: none; }

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

/* PRELOADER */

.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--azul-marinho);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

.preloader.hidden {
  opacity: 0;
}

.preloader-inner {
  text-align: center;
}

.preloader-phase-1 {
  margin-bottom: 40px;
}

.preloader-word {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 800;
  color: var(--branco);
  opacity: 0;
  transform: translateY(20px);
  letter-spacing: -1px;
  margin: 0;
  line-height: 1.2;
}

.preloader-word.visible {
  animation: preloaderWordIn 0.6s ease forwards;
}

@keyframes preloaderWordIn {
  to {
    opacity: 0.9;
    transform: translateY(0);
  }
}

.preloader-phase-2 {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.preloader-phase-2.visible {
  opacity: 1;
}

.preloader-reveal {
  position: relative;
  display: inline-block;
  overflow: hidden;
  padding: 4px 0;
}

.preloader-reveal-text {
  font-family: var(--font-display);
  font-size: clamp(20px, 3.5vw, 42px);
  font-weight: 800;
  color: var(--dourado);
  letter-spacing: 2px;
  display: block;
}

.preloader-reveal-box {
  position: absolute;
  inset: 0;
  background: var(--dourado);
  transform: translateX(-101%);
}

.preloader-reveal-box.animate {
  animation: revealBox 0.8s cubic-bezier(0.77, 0, 0.18, 1) forwards;
}

@keyframes revealBox {
  0% { transform: translateX(-101%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(101%); }
}

/* HEADER */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: var(--branco);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.logo {
  display: flex;
  align-items: center;
  line-height: 0;
  flex-shrink: 0;
}

.logo-img {
  display: block;
  width: 114px;
  height: 48px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  color: var(--grafite);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-body);
}

.nav a {
  transition: color 0.2s ease;
  position: relative;
}

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

.header-cta {
  padding: 9px 22px;
  border-radius: 999px;
  background: var(--azul-marinho);
  color: var(--branco);
  font-size: 13px;
  font-weight: 600;
  transition: 0.2s ease;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.header-cta:hover {
  background: var(--azul-profundo);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(7, 17, 31, 0.18);
}

.mobile-nav {
  display: none;
}

/* Hamburger menu */
.menu-btn {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  width: 28px;
  height: 28px;
  position: relative;
}

.menu-hamburger,
.menu-hamburger::before,
.menu-hamburger::after {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--grafite);
  border-radius: 2px;
  transition: 0.3s ease;
  position: absolute;
  left: 0;
}

.menu-hamburger {
  top: 50%;
  transform: translateY(-50%);
}

.menu-hamburger::before {
  content: "";
  top: -8px;
}

.menu-hamburger::after {
  content: "";
  top: 8px;
}

/* HERO */

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(
      90deg,
      rgba(15, 26, 48, 0.94) 0%,
      rgba(15, 26, 48, 0.78) 38%,
      rgba(15, 26, 48, 0.35) 70%,
      rgba(15, 26, 48, 0.18) 100%
    ),
    url("../img/mtsfundo.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--branco);
  padding-top: var(--header-h);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 40%, rgba(200, 155, 60, 0.10), transparent 28%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05), transparent 24%);
  pointer-events: none;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 25% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 25% 50%, black 20%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 690px;
  padding: 60px 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 13px;
  border: 1px solid var(--borda);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 20px;
}

.tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--dourado);
  box-shadow: 0 0 18px rgba(200, 155, 60, 0.8);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 46px);
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  max-width: 760px;
}

.hero h1 span {
  color: var(--dourado);
}

.hero p {
  font-size: clamp(15px, 1.8vw, 19px);
  color: rgba(255, 255, 255, 0.76);
  max-width: 620px;
  margin-bottom: 26px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--dourado);
  color: #111827;
  box-shadow: 0 12px 30px rgba(200, 155, 60, 0.22);
}

.btn-primary:hover {
  background: var(--dourado-claro);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(200, 155, 60, 0.35);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--branco);
  background: rgba(255, 255, 255, 0.06);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* HERO CARD */

.hero-card {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: 660px;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--borda);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hc-item {
  padding: 22px;
  background: rgba(15, 26, 48, 0.50);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: background 0.3s ease;
}

.hc-item:hover {
  background: rgba(15, 26, 48, 0.72);
}

.hc-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--dourado);
  line-height: 1;
  min-width: 36px;
  opacity: 0.5;
}

.hc-item strong {
  display: block;
  color: var(--branco);
  font-family: var(--font-display);
  font-size: 15px;
  margin-bottom: 2px;
}

.hc-item span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

/* SECTIONS */

section {
  padding: 96px 0;
}

.section-header {
  max-width: 760px;
  margin-bottom: 52px;
}

.section-kicker {
  color: var(--dourado);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--azul-marinho);
  margin-bottom: 18px;
}

.section-text {
  font-size: 17px;
  color: var(--cinza);
  max-width: 720px;
}

/* SOBRE */

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.about-box {
  background: var(--cinza-claro);
  padding: 36px;
  border-radius: 28px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.06);
}

.about-box article + article {
  margin-top: 24px;
}

.about-box h3 {
  color: var(--azul-marinho);
  font-family: var(--font-display);
  font-size: 25px;
  margin-bottom: 10px;
}

.about-box p {
  color: var(--cinza);
}

.about-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.about-list li {
  list-style: none;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--grafite);
  font-weight: 600;
}

.about-list li::before {
  content: "\2713";
  min-width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--azul-marinho);
  color: var(--dourado);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 900;
  margin-top: 1px;
}

/* DIFFERENTIALS */

.differentials {
  background: #f8fafc;
}

.diff-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: center;
}

.diff-visual {
  min-height: 430px;
  border-radius: 32px;
  background:
    linear-gradient(140deg, rgba(15, 26, 48, 0.94), rgba(24, 43, 69, 0.86)),
    url("../img/mtsfundo.webp");
  background-size: cover;
  background-position: center;
  box-shadow: var(--sombra);
  position: relative;
  overflow: hidden;
}

.diff-visual::after {
  content: "MTS";
  position: absolute;
  right: 32px;
  bottom: 24px;
  font-family: var(--font-display);
  font-size: 80px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.06);
  letter-spacing: -5px;
}

.floating-info {
  position: absolute;
  left: 28px;
  bottom: 28px;
  right: 28px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid var(--borda);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 22px;
  padding: 24px;
  color: var(--branco);
}

.floating-info strong {
  display: block;
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: 6px;
}

.floating-info span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

/* SERVIÇOS */

.services {
  background: #f8fafc;
}

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

.service-card {
  background: var(--branco);
  padding: 28px 24px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.07);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  border-color: var(--dourado);
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--azul-marinho), var(--azul-profundo));
  color: var(--dourado);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 18px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.service-card:hover .service-icon {
  transform: scale(1.06);
}

.service-card h3 {
  color: var(--azul-marinho);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}

.service-card p {
  color: var(--cinza);
  font-size: 14px;
  line-height: 1.55;
  flex-grow: 1;
}

/* TESTIMONIAL */

.testimonial {
  background: var(--azul-marinho);
  color: var(--branco);
  position: relative;
  overflow: hidden;
}

.testimonial::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(200, 155, 60, 0.12);
  right: -120px;
  top: -140px;
  filter: blur(8px);
}

.testimonial-box {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.testimonial blockquote {
  border: 0;
  padding: 0;
  margin: 0;
}

.testimonial p {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
  letter-spacing: -1px;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
}

.testimonial strong {
  color: var(--dourado);
}

.testimonial cite {
  font-style: normal;
  color: rgba(255, 255, 255, 0.55);
  font-size: 15px;
}

/* CONTATO */

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}

.contact-info {
  background: var(--azul-marinho);
  color: var(--branco);
  border-radius: 28px;
  padding: 36px;
  box-shadow: var(--sombra);
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 28px;
  margin-bottom: 14px;
}

.contact-info > p {
  color: rgba(255, 255, 255, 0.68);
  margin-bottom: 28px;
}

.info-item {
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.info-item span {
  display: block;
  color: var(--dourado);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 800;
  margin-bottom: 4px;
}

.info-item strong {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.form {
  background: var(--branco);
  padding: 36px;
  border-radius: 28px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 14px 42px rgba(15, 23, 42, 0.07);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--azul-marinho);
  margin-bottom: 7px;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(15, 23, 42, 0.14);
  border-radius: 16px;
  padding: 14px 15px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  font-family: inherit;
  background: var(--branco);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--dourado);
  box-shadow: 0 0 0 4px rgba(200, 155, 60, 0.12);
}

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

.form button {
  border: none;
  width: 100%;
  min-height: 54px;
  border-radius: 999px;
  background: var(--azul-marinho);
  color: var(--branco);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.form button:hover {
  background: var(--dourado);
  color: #111827;
  transform: translateY(-2px);
}

/* FOOTER */

.footer {
  background: var(--azul-marinho);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: block;
  width: 133px;
  height: 56px;
  filter: brightness(0) invert(1);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--branco);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--dourado);
}

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}

.footer-contact li strong {
  display: block;
  color: rgba(255, 255, 255, 0.4);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  margin-bottom: 1px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 8px;
}

.footer-register {
  font-size: 12px;
}

/* SCROLL REVEAL */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* HERO LOAD ANIMATION */

.hero .tag,
.hero h1,
.hero p,
.hero-actions,
.hero-card {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease forwards;
}

.hero .tag { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.25s; }
.hero p { animation-delay: 0.4s; }
.hero-actions { animation-delay: 0.55s; }
.hero-card { animation-delay: 0.7s; }

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* REDUCED MOTION */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .hero .tag,
  .hero h1,
  .hero p,
  .hero-actions,
  .hero-card {
    opacity: 1;
    transform: none;
    animation: none;
  }
  .service-card { transform: none !important; }
  .service-card:hover { transform: none !important; }
  .hc-item { transition: none; }
}

/* RESPONSIVO */

@media (max-width: 1100px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav,
  .header-cta {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .mobile-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 4%;
    right: 4%;
    background: var(--branco);
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 20px;
    padding: 18px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.10);
  }

  .mobile-nav.active {
    display: grid;
    gap: 14px;
  }

  .mobile-nav a {
    color: var(--grafite);
    padding: 10px;
    font-weight: 600;
  }

  .hero {
    min-height: 65vh;
    background-position: center;
  }

  .hero-content {
    padding: 56px 0 40px;
  }

  .hero-card {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-grid,
  .diff-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

@media (max-width: 520px) {
  .hero {
    background-image:
      linear-gradient(
        180deg,
        rgba(15, 26, 48, 0.92) 0%,
        rgba(15, 26, 48, 0.80) 48%,
        rgba(15, 26, 48, 0.65) 100%
      ),
      url("../img/mtsfundo.webp");
  }

  .hero h1 {
    letter-spacing: -1px;
  }

  section {
    padding: 72px 0;
  }

  .about-box,
  .form,
  .contact-info {
    padding: 26px;
  }

  .logo-text strong {
    font-size: 18px;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
  }

  .diff-grid {
    display: flex;
    flex-direction: column-reverse;
  }
}