/* Variables */ 
:root {
    --principal: #041d4f;
    --principal-claro: #0a2a6b;
    --blanco: #ffffff;
}

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

html, body {
    height: 100%;
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--principal) 0%, var(--principal-claro) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Contenedor */
.login-container {
    width: 100%;
    max-width: 420px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Formulario vidrio */
form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2.2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Logo */
.logo {
    margin-bottom: 20px;
}

.logo img {
    max-width: 120px;
    height: auto;
    border-radius: 50%;
    border: 3px solid var(--principal-claro);
    box-shadow: 0 0 12px rgba(4, 29, 79, 0.6);
}

/* Labels */
label {
    font-weight: 600;
    color: var(--blanco);
    align-self: flex-start;
    margin: 12px 0 4px;
    font-size: 1rem;
}

/* Inputs */
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--blanco);
    font-size: 1rem;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

/* Input con icono */
.input-icon {
    position: relative;
    width: 100%;
    margin-bottom: 1rem;
}

.input-icon input {
    width: 100%;
    padding: 10px 10px 10px 35px;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

/* Focus */
.input-icon input:focus {
    border: 1px solid var(--principal-claro);
    box-shadow: 0 0 8px rgba(4, 29, 79, 0.6);
}

/* Icono */
.input-icon i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--principal-claro);
    font-size: 16px;
    pointer-events: none;
}

/* Placeholder */
input::placeholder {
    color: rgba(255,255,255,0.7);
}

/* Focus general */
input[type="text"]:focus,
input[type="password"]:focus {
    border: 1px solid var(--principal-claro);
    background-color: rgba(255, 255, 255, 0.25);
    outline: none;
}

/* Botón */
button {
    width: 100%;
    background: linear-gradient(135deg, var(--principal), var(--principal-claro));
    color: #fff;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: bold;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    margin-top: 12px;
    transition: transform 0.2s ease, opacity 0.3s ease;
}

button:hover {
    opacity: 0.9;
    transform: scale(1.03);
}

/* Mensajes */
p {
    margin-top: 1rem;
    color: #cbd5ff;
    font-weight: 500;
    text-align: center;
}

/* Responsive */
@media (max-width: 600px) {
  .login-container {
    width: 95vw !important;
    max-width: 95vw !important;
  }

  form {
    padding: 1.5rem;
  }

  .logo img {
    max-width: 90px;
  }

  input[type="text"],
  input[type="password"] {
    font-size: 1rem;
    padding: 12px;
  }

  button {
    font-size: 1rem;
    padding: 12px;
  }
}