/* ============================================
   PLANO A TECNOLOGIA — DESIGN SYSTEM
   ============================================ */

:root {
  --bg:        #060b14;
  --bg-card:   rgba(255, 255, 255, 0.04);
  --border:    rgba(255, 255, 255, 0.08);
  --cyan:      #38bdf8;
  --purple:    #818cf8;
  --text:      #e2e8f0;
  --muted:     #64748b;
  --header-h:  72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── FUNDO com grade sutil ────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ── UTILITÁRIOS ──────────────────────────── */
.container {
  max-width: 1140px;
  margin: auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  padding: 96px 0;
  position: relative;
  z-index: 1;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 580px;
}

/* ── HEADER ───────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(6, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header img.logo {
  height: 70px;
  object-fit: contain;
}

/* ── HAMBURGER ────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background .2s;
}

.hamburger:hover {
  background: rgba(255,255,255,.06);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

.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); }

nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color .2s, background .2s;
}

nav a:hover {
  color: #fff;
  background: rgba(255,255,255,.06);
}

nav a.active {
  color: var(--cyan);
}

.nav-cta {
  margin-left: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--purple)) !important;
  color: #fff !important;
  padding: 8px 18px !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  opacity: .88;
  background: linear-gradient(135deg, var(--cyan), var(--purple)) !important;
}

/* ── HERO ─────────────────────────────────── */
.hero {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  position: relative;
  z-index: 1;
}

/* brilho central */
.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -60%;
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(56,189,248,.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56,189,248,.1);
  border: 1px solid rgba(56,189,248,.25);
  color: var(--cyan);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero-badge span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .3; }
}

.hero h1 {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero p {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── BOTÕES ───────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: opacity .2s, transform .2s;
  font-family: 'Poppins', sans-serif;
}

.btn:hover {
  opacity: .88;
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #fff;
  box-shadow: 0 0 24px rgba(56,189,248,.25);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
  box-shadow: 0 0 24px rgba(37,211,102,.25);
}

.btn-whatsapp:hover {
  background: #20bc5a;
  opacity: 1;
}

/* ── CARDS ────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,.04), transparent);
  opacity: 0;
  transition: opacity .3s;
}

.card:hover {
  border-color: rgba(56,189,248,.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,.4), 0 0 0 1px rgba(56,189,248,.12);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  font-size: 32px;
  margin-bottom: 18px;
  display: block;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #f1f5f9;
}

.card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ── SEÇÃO COM DIVISOR ────────────────────── */
.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: 2px;
  margin: 20px 0 48px;
}

/* ── STATS ────────────────────────────────── */
.stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 56px;
}

.stat-item .number {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item .label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

/* ── TAGS DE TECH ─────────────────────────── */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.tag {
  background: rgba(56,189,248,.08);
  border: 1px solid rgba(56,189,248,.18);
  color: var(--cyan);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
}

/* ── FORMULÁRIO ───────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: #94a3b8;
}

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(56,189,248,.12);
}

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

/* ── FOOTER ───────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  position: relative;
  z-index: 1;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer p {
  color: var(--muted);
  font-size: 14px;
}

footer .footer-links {
  display: flex;
  gap: 20px;
}

footer .footer-links a {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s;
}

footer .footer-links a:hover {
  color: var(--cyan);
}

/* ── CONTATO — separador e alertas ───────── */
.contact-or {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 28px 0 20px;
  color: var(--muted);
  font-size: 13px;
}

.contact-or::before,
.contact-or::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.alert {
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.alert-success {
  background: rgba(37,211,102,.1);
  border: 1px solid rgba(37,211,102,.3);
  color: #4ade80;
}

.alert-error {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: #f87171;
}

/* ── BOTÃO FLUTUANTE WHATSAPP ─────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  transition: transform .2s, box-shadow .2s;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,211,102,.55);
}

/* ── ANIMAÇÃO DE ENTRADA ──────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp .6s ease forwards;
}

.fade-up:nth-child(1) { animation-delay: .1s; }
.fade-up:nth-child(2) { animation-delay: .2s; }
.fade-up:nth-child(3) { animation-delay: .3s; }
.fade-up:nth-child(4) { animation-delay: .4s; }

@keyframes fadeUp {
  to { opacity: 1; transform: none; }
}

/* ── RESPONSIVO ───────────────────────────── */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    background: rgba(6,11,20,.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }

  nav.open {
    display: flex;
  }

  nav a {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 10px;
  }

  nav a.nav-cta {
    margin-left: 0;
    text-align: center;
    margin-top: 4px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 60px 20px;
  }

  .stats {
    gap: 24px;
  }

  .card {
    padding: 28px 22px;
  }

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

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
  }

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

  footer .footer-links {
    justify-content: center;
  }
}