:root {
  --c1: #b5cedf;
  --c2: #76b6d8;
  --c3: #2499cc;
  --c4: #084e73;
  --c5: #00131b;

  --white: #ffffff;
  --bg: #f4f9fc;
  --text: #0a2a3a;
  --soft: #5e7b8a;
}

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

body {
  background: linear-gradient(135deg, var(--bg), #eaf4fa);
  font-family: "Segoe UI", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

/* WRAPPER */
.main-wrapper {
  width: 100%;
  max-width: 1100px;
}

/* CARD */
.landing-card {
  background: #fff;
  border-radius: 25px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* LEFT */
.left-panel {
  background: linear-gradient(180deg, var(--c4), var(--c5));
  color: white;
  padding: 40px;
  height: 100%;
}

.brand-logo {
  max-width: 320px;
  margin-bottom: 30px;
}

.headline {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 15px;
}

.subtitle {
  opacity: 0.9;
  line-height: 1.6;
}

/* SOCIAL */
.social-links {
  margin-top: 25px;
  display: flex;
  gap: 12px;
}

.social-links a {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: 0.3s;
}

.social-links a:hover {
  background: var(--c3);
  transform: translateY(-3px);
}

/* RIGHT */
.right-panel {
  padding: 50px;
}

.section-title {
  font-size: 1.6rem;
  color: var(--c4);
  font-weight: bold;
}

.section-text {
  margin: 15px 0 30px;
  color: var(--soft);
}

/* NEWSLETTER */
.newsletter-box {
  background: #f7fbfd;
  padding: 25px;
  border-radius: 15px;
  margin-bottom: 30px;
}

.form-control {
  height: 50px;
  border-radius: 12px;
  border: 1px solid #dcecf5;
}

.btn-newsletter {
  width: 100%;
  height: 50px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(90deg, var(--c3), var(--c4));
  color: white;
  font-weight: bold;
}

/* CONTACT */
.contact-box h4 {
  margin-bottom: 15px;
  color: var(--c4);
}

.contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--soft);
}

.contact-item i {
  color: var(--c3);
}

/* RESPONSIVO */
@media (max-width: 768px) {
  .left-panel,
  .right-panel {
    padding: 30px;
  }

  .headline {
    font-size: 1.5rem;
  }
}