:root {
  --blue: #0057d9;
  --blue-2: #008cff;
  --blue-dark: #061a4d;
  --navy: #031233;
  --white: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --green: #25d366;
  --orange: #f59e0b;
  --shadow: 0 24px 70px rgba(0, 42, 130, .22);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.5;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #dbeafe;
}

.topbar-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand img {
  width: 205px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 900;
  text-transform: uppercase;
  font-size: 14px;
  color: #0b1742;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  padding: 14px 22px;
  font-weight: 900;
  cursor: pointer;
  transition: .25s ease;
  text-transform: uppercase;
  font-size: 14px;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  color: #fff;
  box-shadow: 0 14px 30px rgba(0, 87, 217, .28);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #034cc6, #007cff);
  color: #fff;
  box-shadow: 0 14px 30px rgba(0, 87, 217, .24);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid #60a5fa;
}

.full { width: 100%; }

.hero {
  min-height: 560px;
  background:
    linear-gradient(90deg, rgba(3,18,51,.94), rgba(3,18,51,.55), rgba(3,18,51,.72)),
    url('../img/hero-fibra-bg.jpg') center/cover no-repeat;
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-overlay {
  min-height: 560px;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(42px, 5.2vw, 78px);
  line-height: .96;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: -0.04em;
}

.hero h1 span {
  display: block;
  color: #118cff;
  text-shadow: 0 0 28px rgba(0,140,255,.45);
}

.hero p {
  font-size: 22px;
  max-width: 650px;
  margin-top: 20px;
  color: #e2e8f0;
}

.hero-icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  max-width: 620px;
  margin-top: 30px;
}

.hero-icons div {
  text-align: center;
}

.hero-icons strong {
  display: block;
  font-size: 36px;
  margin-bottom: 8px;
}

.hero-icons span {
  display: block;
  font-weight: 900;
  text-transform: uppercase;
  font-size: 14px;
}

.viability-call {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 470px;
  padding: 16px 22px;
  border: 1px solid #118cff;
  border-radius: 9px;
  background: rgba(0,87,217,.22);
  box-shadow: inset 0 0 30px rgba(0,140,255,.12);
}

.viability-call .pin {
  font-size: 38px;
}

.viability-call strong {
  display: block;
  font-size: 22px;
  text-transform: uppercase;
}

.viability-call small {
  display: block;
  font-weight: 800;
  color: #dbeafe;
  text-transform: uppercase;
}

.viability-call b {
  margin-left: auto;
  font-size: 48px;
  line-height: 1;
}

.fiber-card {
  margin-left: auto;
  max-width: 300px;
  padding: 28px;
  border-radius: 14px;
  border: 1px solid #118cff;
  background: rgba(3,18,51,.74);
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
}

.fiber-card h2 {
  font-size: 28px;
  text-transform: uppercase;
}

.fiber-card strong {
  display: block;
  margin-top: 4px;
  font-size: 36px;
  color: #118cff;
  text-transform: uppercase;
}

.fiber-card ul {
  list-style: none;
  margin-top: 18px;
  display: grid;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  text-transform: uppercase;
}

.fiber-card li::before {
  content: '✓';
  color: #118cff;
  margin-right: 8px;
}

.main-offer {
  background: #f8fbff;
  padding: 26px 0 54px;
}

.offer-grid {
  display: grid;
  grid-template-columns: 1.25fr .8fr;
  gap: 34px;
  align-items: start;
}

.section-label {
  display: inline-block;
  font-size: 28px;
  font-weight: 950;
  text-transform: uppercase;
  color: #09236b;
  margin-bottom: 18px;
  border-bottom: 4px solid #118cff;
  padding-bottom: 4px;
}

.plan-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.plan-card {
  background: white;
  border-radius: 14px;
  overflow: hidden;
  padding: 22px;
  box-shadow: var(--shadow);
  border: 1px solid #dbeafe;
}

.plan-card.featured {
  border: 2px solid #118cff;
}

.plan-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  color: white;
  padding: 7px 16px;
  border-radius: 8px;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.plan-speed {
  font-size: 70px;
  line-height: .85;
  color: #003b94;
  font-weight: 950;
}

.plan-speed span {
  display: block;
  font-size: 30px;
  text-transform: uppercase;
}

.plan-card ul {
  list-style: none;
  margin: 20px 0;
  display: grid;
  gap: 9px;
  color: #0f2b75;
  font-weight: 700;
}

.plan-card li::before {
  content: '✓';
  color: var(--blue);
  font-weight: 900;
  margin-right: 8px;
}

.plan-price {
  margin: 18px -22px -22px;
  background: linear-gradient(135deg, #002c8a, #0057d9);
  color: white;
  padding: 18px 22px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
}

.plan-price small {
  text-transform: uppercase;
  font-weight: 800;
}

.plan-price strong {
  font-size: 42px;
  font-weight: 950;
}

.disclaimer {
  margin-top: 12px;
  color: #475569;
  font-size: 14px;
}

.availability-card {
  margin-top: -80px;
  position: relative;
  z-index: 5;
  background: linear-gradient(180deg, #0735a3, #031b63);
  color: white;
  border-radius: 18px;
  border: 2px solid #118cff;
  box-shadow: 0 24px 70px rgba(0,42,130,.35);
  padding: 30px;
}

.availability-card h2 {
  font-size: 32px;
  text-transform: uppercase;
  text-align: center;
}

.availability-card p {
  text-align: center;
  color: #dbeafe;
  margin: 8px 0 18px;
}

form {
  display: grid;
  gap: 12px;
}

input,
select,
textarea {
  width: 100%;
  padding: 16px 18px;
  border-radius: 7px;
  border: none;
  font-size: 16px;
  outline: none;
}

.divider {
  margin: 18px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #dbeafe;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.3);
}

.benefits {
  background: linear-gradient(135deg, #002b84, #0057d9);
  color: white;
  padding: 28px 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
}

.benefit-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.benefit-item .icon {
  font-size: 38px;
  line-height: 1;
}

.benefit-item h3 {
  font-size: 16px;
  text-transform: uppercase;
}

.benefit-item p {
  font-size: 14px;
  color: #dbeafe;
}

.about {
  padding: 72px 0;
  background: #ffffff;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 34px;
  align-items: start;
}

.about h2 {
  font-size: 42px;
  line-height: 1.1;
  color: #09236b;
  margin-bottom: 16px;
}

.about p {
  font-size: 18px;
  color: var(--muted);
  max-width: 760px;
}

.about-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.about-list div {
  padding: 14px 16px;
  border-radius: 10px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #0f2b75;
}

.cta-box {
  background: linear-gradient(180deg, #0735a3, #031b63);
  color: white;
  padding: 30px;
  border-radius: 18px;
  border: 2px solid #118cff;
  box-shadow: var(--shadow);
}

.cta-box h3 {
  font-size: 30px;
  margin-bottom: 10px;
}

.cta-box p {
  color: #dbeafe;
  margin-bottom: 20px;
}

footer {
  background: #031233;
  color: white;
  padding: 22px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: center;
}

.footer-grid div {
  text-align: center;
  font-size: 18px;
}

.copy {
  max-width: 1180px;
  margin: 18px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.18);
  text-align: center;
  color: #cbd5e1;
  font-size: 14px;
}

.floating-whatsapp {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  z-index: 999;
  background: #25d366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 900;
  box-shadow: 0 16px 35px rgba(37,211,102,.35);
}

@media (max-width: 1040px) {
  .nav { display: none; }

  .hero-grid,
  .offer-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .availability-card {
    margin-top: 0;
  }

  .hero-icons,
  .plan-cards,
  .benefits-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .fiber-card {
    margin-left: 0;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    min-height: 82px;
  }

  .brand img {
    width: 150px;
  }

  .hero {
    min-height: auto;
  }

  .hero-overlay {
    min-height: auto;
    padding: 46px 0;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero p {
    font-size: 18px;
  }

  .hero-icons,
  .plan-cards,
  .benefits-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .plan-speed {
    font-size: 58px;
  }

  .availability-card {
    padding: 24px;
  }

  .footer-grid div {
    text-align: left;
  }
}