@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600&display=swap');

:root {
  --color-background: linear-gradient(180deg, #140C2B 0%, #0A2282 40%, #140C2B 100%);
  --color-card-bg: #00052c;
  --color-card-border: #1f234f;
  --color-header: #49ff9b;
  --color-label: #e6e9ff;
  --color-input-bg: #fff;
  --color-input-border: #2b3070;
  --color-button: #49ff9b;
  --font-family: 'Open Sans', sans-serif;
}

/* Fondo con degradado tipo Gmarketing */
body {
  background: var(--color-background);
  background-attachment: fixed;
  color: var(--color-label);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  line-height: 1.5;
}

/* Contenedor principal */
.container {
  width: 100%;
  max-width: 900px;
  padding: 40px 20px;
  box-sizing: border-box;
}

/* Logo superior */
.logo {
  display: block;
  width: 380px;
  margin: 0 auto 30px;
  max-width: 90%;
  height: auto;
}

/* Tarjeta central */
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.45);
  width: 100%;
  box-sizing: border-box;
}

/* Títulos */
h1 {
  text-align: center;
  color: var(--color-header);
  font-size: 28px;
  border-bottom: 1px solid var(--color-header);
  padding-bottom: 10px;
  margin-bottom: 25px;
}

h2 {
  color: #fff;
  font-size: 18px;
  margin-top: 35px;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Etiquetas */
label {
  display: block;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--color-label);
  text-align: left;
}

/* Inputs y Textareas */
input[type="text"],
textarea {
  width: 100%;
  border: 1px solid var(--color-input-border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 15px;
  background: var(--color-input-bg);
  color: #000;
  resize: vertical;
  transition: all 0.2s ease-in-out;
  box-sizing: border-box;
}

textarea:focus,
input[type="text"]:focus {
  border-color: var(--color-header);
  outline: none;
  box-shadow: 0 0 6px rgba(73, 255, 155, 0.5);
}

/* Ajuste de altura mínima */
textarea {
  min-height: 90px;
}

/* Botón de acción */
.actions {
  text-align: center;
  margin-top: 45px;
}

.btn-submit {
  background-color: var(--color-button);
  color: #000;
  border: none;
  padding: 14px 40px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s ease-in-out;
  box-shadow: 0px 2px 12px rgba(73, 255, 155, 0.4);
}

.btn-submit:hover {
  background-color: #00e882;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, .5);
}

/* ✅ Adaptabilidad: tablets y celulares */
@media (max-width: 992px) {
  .container {
    padding: 30px 15px;
  }

  .card {
    padding: 30px 20px;
  }

  h1 {
    font-size: 26px;
  }

  .logo {
    width: 280px;
    margin-bottom: 25px;
  }
}

@media (max-width: 600px) {
  body {
    align-items: stretch;
  }

  .container {
    padding: 20px 10px;
  }

  .card {
    border-radius: 10px;
    padding: 25px 15px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 16px;
    margin-top: 25px;
  }

  label {
    font-size: 14px;
  }

  input[type="text"],
  textarea {
    font-size: 14px;
    padding: 10px 12px;
  }

  .logo {
    width: 350px;
    margin: 20px auto;
  }

  .btn-submit {
    width: 100%;
    padding: 14px;
    font-size: 15px;
  }
}