/* =============================================
   INFRA SERVICE TECNOLOGIA — stylesheet
   ============================================= */

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

:root {
  --navy:       #0a1628;
  --navy-light: #0f2042;
  --navy-mid:   #162d55;
  --orange:     #625AD1;
  --orange-dark:#4e48a8;
  --orange-glow:rgba(98,90,209,.18);
  --text:       #e2e8f0;
  --text-muted: #94a3b8;
  --white:      #ffffff;
  --card-bg:    #0d1f3c;
  --border:     rgba(255,255,255,.07);
  --radius:     14px;
  --radius-sm:  8px;
  --shadow-card: 0 4px 32px rgba(0,0,0,.35);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--navy);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
strong { font-weight: 700; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: .9rem;
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--orange);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--orange-dark);
  box-shadow: 0 0 24px var(--orange-glow);
  transform: translateY(-1px);
}
.btn--outline {
  background: transparent;
  border-color: var(--orange);
  color: var(--orange);
}
.btn--outline:hover {
  background: var(--orange);
  color: var(--white);
}
.btn--ghost {
  background: rgba(255,255,255,.08);
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.14);
}
.btn--lg  { padding: 14px 32px; font-size: 1rem; border-radius: 10px; }
.btn--full { width: 100%; }

/* ---- Section helpers ---- */
.section-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .section-desc { margin: 0 auto; }

.highlight { color: var(--orange); }

/* ============================================= */
/*  NAVBAR                                        */
/* ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled {
  background: rgba(10,22,40,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,.4);
  padding: 12px 0;
}
.navbar__inner {
  display: flex;
  align-items: center;
  gap: 32px;
}
.navbar__logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -.02em;
  flex-shrink: 0;
}
.logo-prefix { color: var(--white); }
.logo-suffix { color: var(--orange); }
.logo-img {
  height: 52px;
  width: auto;
  display: block;
}
@media (max-width: 768px) {
  .logo-img { height: 38px; }
}

.navbar__menu { margin-left: auto; }
.navbar__menu ul {
  display: flex;
  gap: 32px;
}
.navbar__menu a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.navbar__menu a:hover { color: var(--white); }

.navbar__cta { margin-left: 16px; flex-shrink: 0; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity 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 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(249,115,22,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(249,115,22,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 40%, transparent 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(249,115,22,.12);
  border: 1px solid rgba(249,115,22,.3);
  color: var(--orange);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
}
.stat span {
  font-size: .8rem;
  color: var(--text-muted);
}
.stat__divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero__gradient-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 160px;
  background: linear-gradient(transparent, var(--navy));
  pointer-events: none;
}

/* ============================================= */
/*  SERVICES                                      */
/* ============================================= */
.services {
  padding: 100px 0;
  background: var(--navy);
}

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

.card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover {
  border-color: rgba(249,115,22,.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.card:hover::before { opacity: 1; }

.card--featured {
  border-color: rgba(249,115,22,.25);
  background: linear-gradient(135deg, var(--card-bg) 60%, rgba(249,115,22,.06));
}
.card--featured::before { opacity: 1; }

.card__badge {
  display: inline-block;
  background: var(--orange-glow);
  color: var(--orange);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
  border: 1px solid rgba(249,115,22,.3);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: rgba(249,115,22,.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--orange);
}
.card__icon svg { width: 24px; height: 24px; }

.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.card__desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card__list li {
  font-size: .83rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--orange);
  border-radius: 50%;
}

/* ============================================= */
/*  ABOUT                                         */
/* ============================================= */
.about {
  padding: 100px 0;
  background: var(--navy-light);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about__text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: .95rem;
  line-height: 1.8;
}
.about__text strong { color: var(--white); }
.about__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.badge {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
}

.about__card-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about__stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
}
.about__stat-card strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}
.about__stat-card span {
  font-size: .85rem;
  color: var(--text-muted);
}
.about__stat-card--accent {
  border-color: rgba(249,115,22,.3);
  background: linear-gradient(135deg, var(--card-bg), rgba(249,115,22,.06));
}
.about__stat-card--accent strong { color: var(--orange); }

/* ============================================= */
/*  CONTACT                                       */
/* ============================================= */
.contact {
  padding: 100px 0;
  background: var(--navy);
}
.contact__inner { max-width: 720px; margin: 0 auto; }

.contact__form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  margin-top: 48px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: .9rem;
  padding: 12px 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}
.form-group select { appearance: none; cursor: pointer; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-glow);
}
.form-group textarea { resize: vertical; }
.campo-erro {
  border-color: #e24b4a !important;
}
.msg-erro-email {
  color: #e24b4a;
  font-size: 12px;
  margin-top: 4px;
  display: none;
}
.msg-erro-email.visivel {
  display: block;
}

.form-note {
  text-align: center;
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ============================================= */
/*  FOOTER                                        */
/* ============================================= */
.footer {
  background: var(--navy-light);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer__brand p {
  font-size: .88rem;
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 220px;
}
.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer__col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a {
  font-size: .88rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--orange); }
.footer__bottom {
  padding: 20px 24px;
  text-align: center;
  font-size: .8rem;
  color: var(--text-muted);
}

/* ============================================= */
/*  RESPONSIVE                                    */
/* ============================================= */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .about__inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  .navbar__menu {
    position: fixed;
    top: 0; right: 0;
    width: 280px;
    height: 100vh;
    background: var(--navy-light);
    border-left: 1px solid var(--border);
    padding: 88px 32px 40px;
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 99;
  }
  .navbar__menu.open { transform: translateX(0); }
  .navbar__menu ul { flex-direction: column; gap: 8px; }
  .navbar__menu a {
    display: block;
    padding: 10px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .navbar__cta { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 120px 0 64px; }
  .hero__stats { gap: 20px; }
  .stat__divider { display: none; }

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

  .form-row { grid-template-columns: 1fr; }
  .contact__form { padding: 28px 20px; }

  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .footer__links { grid-template-columns: 1fr; }
}