:root {
        --primary: #0066FF;
        --primary-hover: #004ECC;
        --bg: #F4F6F9;
        --surface: #FFFFFF;
        --text: #1C1C1E;
        --text-muted: #6C6C6D;
        --border: #E1E3E6;
    }

    body {
        margin: 0;
        padding: 0;
        min-height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background: var(--bg);
        font-family: 'Inter', sans-serif;
        color: var(--text);
    }

    .login-container {
        width: 100%;
        max-width: 420px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        gap: 1rem;
        background: var(--surface);
        border-radius: 18px;
        box-shadow: 0 8px 30px rgba(0,0,0,0.08);
        padding: 1.5rem;
        margin: auto;
        min-height: 85vh;
    }

    .login-header,
    .login-footer {
        display: flex;
        justify-content: center;
        align-items: center;
        height: auto;
        padding: .5rem;
    }

    .logo {
        max-width: 200px;
        height: auto;
    }

    /* TARJETA CENTRAL */
    .login-card {
        flex: 1;
        text-align: center;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: .5rem;
        padding: 0 1rem;
    }

    .title {
        font-size: 1.4rem;
        font-weight: 600;
    }

    .subtitle {
        font-size: .95rem;
        color: var(--text-muted);
    }

    .error-msg {
        background: #FFE5E5;
        color: #B90000;
        padding: .6rem;
        border-radius: 8px;
        margin-bottom: .7rem;
    }

    /* FORMULARIO */
    .form-container {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .form-group {
        text-align: left;
        display: flex;
        flex-direction: column;
        gap: .3rem;
    }

    .form-group label {
        font-size: .9rem;
        font-weight: 500;
    }

    .form-group input {
        padding: .7rem;
        border-radius: 8px;
        border: 1px solid var(--border);
        font-size: .95rem;
    }

    .form-group input:focus {
        outline: none;
        border-color: var(--primary);
    }

    /* BOTÓN */
    .btn {
        background: var(--primary);
        border: none;
        color: white;
        padding: .9rem;
        border-radius: 10px;
        font-size: 1rem;
        font-weight: 600;
        cursor: pointer;
        transition: .2s;
        width: 100%;
    }

    .btn:hover {
        background: var(--primary-hover);
    }

    /* LINK RECUPERAR CONTRASEÑA */
    .forgot-password {
        text-align: center;
        margin-top: .5rem;
    }

    .forgot-password a {
        color: var(--primary);
        text-decoration: none;
        font-size: .9rem;
    }

    .forgot-password a:hover {
        text-decoration: underline;
    }

    /* MENSAJE ÉXITO */
    .success-msg {
        background: #E5FFE5;
        color: #007A00;
        padding: .6rem;
        border-radius: 8px;
        margin-bottom: .7rem;
    }