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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #ffffff;
  color: #333;
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ========== HEADER ========== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  flex-wrap: wrap;
  z-index: 10;
  position: relative;
}

.logo img {
  height: 40px;
}

nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #007bff;
}

.contact-btn {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

.contact-btn:hover {
  background-color: #0056b3;
}

/* ========== BANNER ========== */
.banner {
  width: 100%;
  min-height: 40vh;
  background-color: #8e8f91;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  text-align: center;
}

.banner img {
  width: 60%;
  max-width: 500px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* ========== TABS ========== */
.nav-tabs {
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 30px 20px;
  background-color: #ebebf1;
  flex-wrap: wrap;
}

.nav-tabs div {
  background-color: #0056b3;
  padding: 14px 28px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(218, 217, 217, 0.05);
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 600;
}

.nav-tabs div:hover {
  background-color: #e9ecef;
}

/* ========== WHATSAPP CHAT / CHATBOT ========== */
.whatsapp-chat {
  position: fixed;
  right: 80px;
  bottom: 40px;
  background-color: #25d366;
  color: #fff;
  padding: 12px 18px;
  border-radius: 25px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  font-weight: bold;
  font-size: 14px;
  text-align: center;
  z-index: 100;
}

.profile-pic {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #25d366;
  z-index: 101;
  transition: transform 0.3s;
}

.profile-pic:hover {
  transform: scale(1.1);
}

/* ========== RESPONSIVO ========== */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  nav {
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-top: 15px;
  }

  .contact-btn {
    width: 100%;
    margin-top: 10px;
  }

  .banner img {
    width: 90%;
  }

  .nav-tabs {
    flex-direction: column;
    gap: 20px;
  }

  .whatsapp-chat {
    right: 20px;
    bottom: 90px;
    padding: 10px 16px;
    font-size: 13px;
  }

  .profile-pic {
    right: 20px;
    bottom: 30px;
    width: 40px;
    height: 40px;
  }
}


.marca-dagua-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.marca-dagua {
  position: absolute;
  font-size: 4rem;
  color: rgba(51, 47, 47, 0.865);
  transform: rotate(-30deg);
  user-select: none;
  white-space: nowrap;
  animation: flutuar 20s linear infinite;
}

.marca-dagua:nth-child(1) { top: 10%; left: -30%; animation-delay: 0s; }
.marca-dagua:nth-child(2) { top: 30%; left: -50%; animation-delay: 5s; }
.marca-dagua:nth-child(3) { top: 50%; left: -40%; animation-delay: 10s; }
.marca-dagua:nth-child(4) { top: 70%; left: -60%; animation-delay: 15s; }
.marca-dagua:nth-child(5) { top: 20%; left: -70%; animation-delay: 7s; }
.marca-dagua:nth-child(6) { top: 80%; left: -90%; animation-delay: 12s; }

@keyframes flutuar {
  0% {
    transform: translateX(0) rotate(-30deg);
  }
  100% {
    transform: translateX(200vw) rotate(-30deg);
  }
}