/* Fuente bonita */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap');


body {
    font-family: Arial, sans-serif;
    margin: 0;
    height: 120vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background-image: url('img/fondo_login.png'); /* o img/grupos.png */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* CONTENEDOR */
.form-container {
    position: relative;
    z-index: 10;
    background: rgba(255, 255, 255, 0.70);
    padding: 40px 30px;
    width: 380px;
    border-radius: 14px;
    box-shadow: 0 0 25px rgba(0,0,0,0.35);
    backdrop-filter: blur(7px);
    text-align: center;
    transform: translateY(-140px); /* 🔼 SUBE EL CUADRO */
}

/* ICONO ENCIMA DEL TÍTULO */
.icono-titulo {
    width: 90px;
    margin-bottom: 10px;
}

/* TÍTULO */
h2 {
    font-size: 24px;
    margin: 0;
    color: #0f4933;
    font-weight: bold;
    text-align: center;
}

/* LABEL CENTRADO */
label {
    display: block;
    text-align: center;
    font-size: 16px;
    color: #0f4933;
    margin-bottom: 6px;
    font-weight: 500;
}

/* INPUT GROUP */
.input-group {
    position: relative;
    width: 100%;
    margin-bottom: 15px;
}

/* CAMPO INPUT */
.input-group input {
    width: 100%;
    padding: 14px 45px 14px 15px;
    border-radius: 8px;
    border: 1px solid #c6ccd3;
    background: rgba(255,255,255,0.35);
    font-size: 15px;
    outline: none;
    box-sizing: border-box;
}

/* ICONO DENTRO DEL INPUT */
.input-icon {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    font-size: 18px;
    color: #0f4933;
}

/* BOTÓN */
button {
    width: 100%;
    padding: 14px;
    background: #20694e;
    color: white;
    border-radius: 8px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
    transition: 0.3s;
}
button:hover {
    background: #0f4933;
    transform: scale(1.03);
}

/* MENSAJES */
.error-msg {
    color: #b30000;
    background: rgba(255,0,0,0.15);
    padding: 10px;
    border-radius: 8px;
    margin-top: 10px;
}

.success-msg {
    color: green;
    background: rgba(0,255,0,0.18);
    padding: 10px;
    border-radius: 8px;
    margin-top: 10px;
}

/* 🔹 ENLACE: VOLVER AL INICIO DE SESIÓN */
.volver {
    margin-top: 18px;
}

.volver a {
    color: #0f4933;
    font-weight: 600;
    text-decoration: none;
    font-size: 15px;
    transition: 0.3s;
}

.volver a i {
    margin-right: 6px;
}

.volver a:hover {
    color: #001f4d;
    text-decoration: underline;
    letter-spacing: 0.5px;
}